Filter Problems

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Problem ID
Your Score
Title
Source
Problem Type
#ACs
examstress N/A Tags: Adhoc Exam Stress NYCP Challenge 1 (JustKitkat) Batch 18
WA1 N/A Tags: Joke WA1 NYCP Challenge 2 (Pan) Batch 16
goodbye N/A Tags: Syntax goodbye (zaneyu) Batch 51
blank N/A Tags: Joke April Fools 2024 (zengminghao) Batch 19
sequences N/A Tags: Joke Sequences April Fools 2024 (siewjh) Batch 11
add1_easy N/A Tags: Joke Add 1 (Easy) April Fools 2024 (ryangohca) Batch 14
boxes3 N/A Tags: Binary Search, Data Structures boxes3 Random idea (AlphanumericUsername) Batch 2
fibble N/A Tags: Joke Fibble April Fools 2024 (ryangohca) Interactive 11
trashinteractive N/A Tags: Binary Search, Information Theory, Joke Trash Interactive April Fools 2024 (TheRaptor) Interactive 13
addition3 N/A Tags: Joke Addition 3 April Fools 2024 (oolimry) Batch 73
field N/A Tags: Graph Theory Field NOI 2024 Finals (cstuart) Batch 3
coin N/A Tags: Data Structures, Graph Theory Coin NOI 2024 Finals (yanhao) Batch 10
shops N/A Tags: Graph Theory, Trees Shops NOI 2024 Finals (bensonlzl) Batch 35
problemsetter N/A Tags: Greedy Problem Setter NOI 2024 Finals (cstuart) Batch 61
toxic2 N/A Tags: Adhoc, Binary Search, Information Theory Toxic Gene 2 NOI 2024 Finals (bensonlzl) Interactive 2
decrypt N/A Tags: Greedy decrypt HCI (HS) 2024 Contest 1 (Tyx2019, AlphanumericUsername) Batch 8
coprimecodependence N/A Tags: Brute Force, Math coprimecodependence HCI (HS) 2024 Contest 1 (AlphanumericUsername) Batch 17
defense101 N/A Tags: Greedy defense101 HCI (HS) 2024 Contest 1 (Tyx2019) Batch 34
playlist N/A Tags: Math, Syntax playlist HCI (HS) 2024 Contest 1 (pIaceholder) Batch 54
binarystring N/A Tags: Dynamic Programming Binary String EOI 2023 Day 1 Batch 9
sonictheparallelogram N/A Tags: Math, Syntax sonictheparallelogram HCI (HS) 2024 Contest 1 (Tyx2019) Batch 40
cooperation N/A Tags: Explicitly Excluded (from IOI), Information Theory, Joke Cooperation April Fools 2024 (blackscreen1) Batch 14
tourist_noi N/A Tags: Syntax Tourist NOI 2024 Qualification Contest (yanhao) Batch 158
party_noi N/A Tags: Greedy Party NOI 2024 Qualification Contest (zaneyu) Batch 135
photo N/A Tags: Line Sweep/Sliding Window School Photo NOI 2024 Qualification Contest (zaneyu) Batch 64
park N/A Tags: Data Structures Amusement Park NOI 2024 Qualification Contest (cstuart) Batch 41
explosives N/A Tags: Adhoc, Greedy Explosives NOI 2024 Qualification Contest (yanhao) Batch 22
motest3 N/A Tags: Joke, Math MOtest3 April Fools 2024 (Tyx2019, eulerleonhardfan, dacashew) Batch 12
casino N/A Tags: Explicitly Excluded (from IOI), Joke Casino Games April Fools 2024 (ryangohca) Interactive 17
maxavg N/A Tags: Adhoc Ceiling Max Average April Fools 2024 (zaneyu) Batch 46
stoning N/A Tags: Meet in the Middle stoning RICP Diagnostic Test 2024 (Potato3218) Batch 20
torturingaccountant N/A Tags: Greedy, Syntax torturingaccountant RICP Diagnostic Test 2024 (RandomPerson, Tyx2019) Batch 13
mathexam N/A Tags: Math, Syntax Math Exam RICP Diagnostic Test 2024 (Potato3218) Batch 16
replacingpavement N/A Tags: Adhoc, Graph Theory, Trees Replacing Pavement December Course 2023 Advanced Final Contest (asbx, back2square1) Batch 22
boxes2 N/A Tags: Data Structures, Dynamic Programming Boxes December Course 2023 Advanced Final Contest (Tyx2019) Batch 15
ghostrule N/A Tags: Graph Theory, Trees Ghost Rule December Course 2023 Advanced Final Contest (AlphanumericUsername) Batch 9
goofyrooks N/A Tags: Adhoc goofyrooks December Course 2023 Elementary Final Contest (penguin133) Batch 61
makingparallelograms N/A Tags: Adhoc makingparallelograms December Course 2023 Elementary Final Contest (shoryu386) Batch 87
powervillage N/A Tags: Greedy powervillage December Course 2023 Elementary Final Contest Batch 66
mothertounge N/A Tags: Graph Theory, Joke Mother Tounge Hello 2024 (oolimry) Batch 30
guessproblem3_ex N/A Tags: Joke Guess Problem 3 (Extended) Hello 2024 (ecxx) Batch 25
summarising2023 N/A Tags: Joke Summarising 2023 Hello 2024 (siewjh) Batch 38
everyonewinstherace N/A Tags: Binary Search, Greedy everyonewinstherace December Course 2023 Elementary Final Contest (oolimry) Batch 21
dynamicdag N/A Tags: Graph Theory dynamicdag December Course 2023 Elementary Final Contest (Tyx2019) Batch 33
travelbloggers N/A Tags: Graph Theory, Joke Travel Bloggers Unknown Source Batch 2
deciphering_zane_4 N/A Tags: Joke Deciphering Zane (IV) Hello 2024 (ecxx) Interactive 26
penguinmountain N/A Tags: Syntax penguinmountain December Course 2023 Elementary Final Contest (penguin133) Batch 107
mononono N/A Tags: Adhoc Mononono Stack December Course 2023 Advanced Final Contest (TheRaptor) Batch 5
sos N/A Tags: Greedy Sum Of Squares December Course 2023 Advanced Final Contest (pavement) Batch 50
maximumtriangle N/A Tags: Data Structures, Divide and Conquer, Dynamic Programming Maximum Triangle CF Edu Round 11 F Batch 26
evacuation N/A Tags: Data Structures, Divide and Conquer Evacuation XX Open Cup GP of Tokyo Batch 2
guessproblem4_ex N/A Tags: Joke Guess Problem 4 (Extended) Hello 2024 (ryangohca, ecxx) Interactive 19
cht N/A Tags: Data Structures, Dynamic Programming Convex Hull Trick Classic Problem Batch 41
fitnesscorner N/A Tags: Divide and Conquer, Graph Theory, Trees Fitness Corner Codeforces 321C Batch 24
gfriendtree N/A Tags: Data Structures, Graph Theory, Trees The 200000 Girlfriends Who Really, Really, Really, Really, Really Love Zane And His Tree Luogu P3313 Batch 19
youtubealgo N/A Tags: Data Structures, Dynamic Programming youtubealgo Dec Course Elem DP 1 Contest (shoryu386) Batch 18
zanesgift N/A Tags: Dynamic Programming zanesgift CF 1881E Batch 38
atleasttripledate N/A Tags: Dynamic Programming, Math atleasttripledate ABC 178D Batch 58
specialgirlfriends N/A Tags: Math, Syntax specialgirlfriends Modified ABC 106C (shoryu386) Batch 59
visitinggf N/A Tags: Dynamic Programming visitinggf Luogu P5322 Batch 12
figurines N/A Tags: Dynamic Programming figurines Luogu P1164 Batch 38
touchinggrass N/A Tags: Data Structures, Divide and Conquer, Graph Theory, Trees Touching Grass Luogu P6329 Batch 7
catdog N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees Cats or Dogs JOI Open 2018 Interactive 4
cake3 N/A Tags: Divide and Conquer, Dynamic Programming cake3 JOI Spring Camp 2019 Batch 7
mrbeast N/A Tags: Data Structures, Graph Theory, Trees mrbeast Codeforces Batch 26
downbad N/A Tags: Dynamic Programming downbad Luogu P1806 Batch 23
findinggf N/A Tags: Dynamic Programming findinggf Luogu P1509 Batch 14
learning N/A Tags: Dynamic Programming learning Luogu P1802 Batch 22
xuehuapiaopiao N/A Tags: Binary Search, Data Structures 雪花飘飘 ABC 248D (Modified) Batch 35
loza N/A Tags: Data Structures, Graph Theory, Trees Loza COI 2009 Batch 2
tomandjerry N/A Tags: Dynamic Programming, Graph Theory, Trees Tom & Jerry Codechef Batch 7
zoo N/A Tags: Dynamic Programming Zoo ABC 228H Batch 13
manyjobs N/A Tags: Greedy manyjobs ABC 131D Batch 50
verticallychallenged N/A Tags: Data Structures Vertically Challenged Girlfriends ABC 234D Batch 41
createnumber N/A Tags: Greedy createnumber ABC 257E Batch 28
minimise N/A Tags: Greedy minimise ABC 101C Batch 49
attention N/A Tags: Bitmask, Dynamic Programming Attention Codeforces Beta Round 11D Batch 13
hurt N/A Tags: Dynamic Programming Hurt LOJ 3864 Batch 10
hypeboy N/A Tags: Bitmask, Dynamic Programming Hype Boy LOJ 3215 Batch 6
cookie N/A Tags: Dynamic Programming Cookie Educational Codeforces Round 59 Batch 9
teleporting N/A Tags: Binary Search teleporting Codeforces Round 790(Div 4) (modified) Batch 44
zanesletters N/A Tags: Data Structures Zane's Letters Classic Problem (ryangohca, siewjh) Batch 50
eta N/A Tags: Trees eta ABC 202E Batch 47
identifyinggirlfriends N/A Tags: Data Structures Identifying Girl Friends Classic Problem (ryangohca, siewjh) Batch 75
nombor N/A Tags: Binary Search, Brute Force Nombor ABC 246D Batch 32
blackmagic N/A Tags: Bitmask, Brute Force Black Magic USACO 2023 January Contest, Bronze Batch 24
findingpavement N/A Tags: Brute Force, Syntax Finding Pavement Atcoder Code Festival 2016 Final Batch 67
movingbasement N/A Tags: Binary Search, Greedy Moving Basement Codeforces 1623C Batch 24
traineeline N/A Tags: Data Structures traineeline ABC 247D Batch 62
tickethandling N/A Tags: Data Structures tickethandling Dec Course 2023 Elementary Contest 4 (DS I) (shoryu386) Batch 68
parallelogramisation N/A Tags: Data Structures parallelogramisation Dec Course 2023 Elementary Contest 4 (DS I) (shoryu386) Batch 92
pairofballs N/A Tags: Data Structures Pair of Balls ABC 216D Batch 24
segmenttreebeats N/A Tags: Data Structures My Soul, Your Beats CF 1791F Batch 29
integralmania N/A Tags: Data Structures integralmania Dec Course 2023 Elementary Contest 4 (DS I) (Tyx2019) Batch 53
qualitytime N/A Tags: Dynamic Programming Quality Time Codeforces 922E Batch 20
familytree N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees Penguin's Adventures Codeforces 671D Batch 7
basement N/A Tags: Data Structures, Dynamic Programming Basement Codeforces 1842C Batch 62
gfriendmania N/A Tags: Data Structures The 200000 Girlfriends Who Really, Really, Really, Really, Really Love Zane CSES Batch 59
mulgogi N/A Tags: Data Structures Mulgogi Codeforces 817F Batch 14
goombatower N/A Tags: Binary Search, Data Structures Goomba Tower Timus 1439 Batch 40
cringemeter N/A Tags: Greedy Cringe Meter Codeforces 1844F Batch 8
medianontree N/A Tags: Dynamic Programming, Graph Theory, Trees Median on Tree EOI 2023 Day 2 Batch 14
lunchtime N/A Tags: Adhoc Lunchtime ARC 162A Batch 31
waterslide N/A Tags: Data Structures Water Slide ROI 2022 Batch 5
chope N/A Tags: Adhoc Chope ARC 152A Batch 39
cokelesssugar N/A Tags: Data Structures, Greedy Coke: Less Sugar Codeforces 1415E (bensonlzl) Batch 43
missingnumber N/A Tags: Syntax Missing Number CSES Batch 111
lowelements N/A Tags: Adhoc lowelements ABC 152C Batch 68
strikes N/A Tags: Graph Theory, Trees Hit you with that dudududududu POI 2017 Batch 44
hunterxhunter N/A Tags: Dynamic Programming hunterxhunter International Autumn Tournament in Informatics 2020 Batch 5
maximummonogonosity N/A Tags: Dynamic Programming maximummonogonosity Codeforces 1859E Batch 16
progressionspells N/A Tags: Greedy, Line Sweep/Sliding Window Progression Spells Codeforces 1661D Batch 38
shuttlerun N/A Tags: Greedy shuttlerun AGC 025C Batch 31
buyingcandy N/A Tags: Greedy Buying Candy ABC 308F Batch 68
rushing N/A Tags: Brute Force, Graph Theory Rushing DDC23 Final (oolimry) Batch 6
trapezes N/A Tags: Binary Search, Brute Force Trapezes DDC23 Final (oolimry) Batch 15
attractions N/A Tags: Greedy Attractions DDC23 Final (shoryu386) Batch 42
showertheduck N/A Tags: Dynamic Programming Shower the Duck DDC23 Final (oolimry) Batch 6
deciphering_zane_3 N/A Tags: Information Theory Deciphering Zane 3 DDC23 Final (oolimry) Interactive 1
streakmanipulation N/A Tags: Binary Search, Dynamic Programming streakmanipulation The 2nd Universal Cup. Stage 12: Hefei Batch 21
Unbalanced N/A Tags: Adhoc unbalanced ABC 043D Batch 47
whackamole N/A Tags: Binary Search, Line Sweep/Sliding Window Whack-A-Mole Codeforces 1852A Batch 40
binarylock N/A Tags: Bitmask, Meet in the Middle binarylock Codeforces 1257F Batch 17
bossbattle N/A Tags: Brute Force, Data Structures Boss Battle Classic Problem in China Batch 14
OrXor N/A Tags: Bitmask, Syntax orxor ABC 197C Batch 28
SameMapInTheRpgWorld N/A Tags: Syntax samemap ABC 300B Batch 34
nextprime N/A Tags: Math, Syntax nextprime ABC 149C Batch 108
losingsleep N/A Tags: Brute Force, Math losingsleep ARC 119A Batch 48
gentlepairs N/A Tags: Syntax gentlepairs ABC 187B Batch 74
penguingathering N/A Tags: Brute Force penguingathering ABC 156C Batch 70
slimes N/A Tags: Syntax slimes ABC 143C Batch 108
breakfast N/A Tags: Syntax breakfast Dunjudge Archive Batch 182
firstabc N/A Tags: Syntax firstabc ABC 311A Batch 111
arcwrecker2 N/A Tags: Adhoc, Data Structures arcwrecker2 ARC119C Batch 18
reverseandmin N/A Tags: Adhoc reverseandmin ARC142A Batch 45
chickensoup N/A Tags: Data Structures, Math chickensoup ABC 256F Batch 26
polyomino N/A Tags: Syntax polyomino ABC 322D Batch 16
monsters N/A Tags: Greedy Monsters Dec Course 2023 Selection Test (beepbeepsheep) Batch 85
flipcards N/A Tags: Binary Search, Dynamic Programming Cards Ucup Stage 8 M (modified) Batch 49
flip N/A Tags: Graph Theory Flipping Edges JOIG 2021 Batch 40
ippt N/A Tags: Syntax IPPT Dec Course 2023 Selection Test (errorgorn) Batch 251
staircase N/A Tags: Greedy Staircase ABC 148D Batch 134
plantingpotatoes N/A Tags: Adhoc, Binary Search Planting Potatoes ABC 300F Batch 17
humantrafficking N/A Tags: Graph Theory Human Trafficking Italian Informatics Olympiad Batch 12
sunshine N/A Tags: Dynamic Programming Sunshine RI Novcourse Final Contest 2023 (zixuan, ryangohca) Batch 19
conductslip N/A Tags: Greedy Conduct Slip RI Novcourse Final Contest 2023 (RandomPerson, Tyx2019) Batch 37
eeniemeenie N/A Tags: Syntax eeniemeenie HCI November Final Contest 2023 (shoryu386) Batch 130
mountainbridges N/A Tags: Data Structures, Dynamic Programming mountainbridges HCI November Final Contest 2023 (huangqr) Batch 31
sortingtrainers N/A Tags: Adhoc Sorting Trainers Bologna IOI in Teams 2017 Batch 52
deforestation N/A Tags: Binary Search, Greedy deforestation HCI November Final Contest 2023 (TheRaptor) Batch 63
boardvision N/A Tags: Syntax Board Vision RI Novcourse Final Contest 2023 (zixuan, nianhe) Batch 38
devour N/A Tags: Adhoc devour HCI November Final Contest 2023 (penguin133) Batch 74
mathclass N/A Tags: Joke, Math Math Class April Fools 2024 (oolimry) Batch 17
candles N/A Tags: Adhoc candles ABC 107C Batch 73
game_ioi13 N/A Tags: Data Structures, Explicitly Excluded (from IOI) game IOI 2013 Interactive 1
robotcontest N/A Tags: Adhoc, Constructive Algorithms, Graph Theory Robot Contest IOI 2023 (Day 2) Interactive 1
dkdk N/A Tags: Joke DKDK (PITAPAT) April Fools 2024 (ryangohca) Batch 7
seagame N/A Tags: Dynamic Programming, Graph Theory, Trees seagame ABC 218G Batch 16
fenwicktree_easy N/A Tags: Syntax fenwicktree_easy RI November Course 2023 Diagnostic Test (Potato3218, nianhe) Batch 79
beechtree N/A Tags: Graph Theory, Trees Beech Tree IOI 2023 (Day 2) Interactive 1
overtaking N/A Tags: Adhoc, Binary Search Overtaking IOI 2023 (Day 2) Interactive 1
flamethrower_ex N/A Tags: Data Structures, Line Sweep/Sliding Window flamethrower_ex RI November Course 2023 Diagnostic Test (Potato3218) Batch 32
gotoschool_ex N/A Tags: Syntax gotoschool_ex RI November Course 2023 Diagnostic Test (NeeNawAmbulance, nianhe) Batch 82
longesttrip N/A Tags: Graph Theory, Information Theory Longest Trip IOI 2023 (Day 1) Interactive 1
soccer N/A Tags: Data Structures, Dynamic Programming, Graph Theory Soccer Stadium IOI 2023 (Day 1) Interactive 2
closing N/A Tags: Data Structures, Graph Theory, Greedy, Trees Closing Time IOI 2023 (Day 1) Interactive 3
melons_joig N/A Tags: Binary Search, Dynamic Programming Melons JOIG 2021/2022 Batch 20
miracleflover N/A Tags: Joke Miracle Flover Hello 2024 (ryangohca, ecxx, leyi) Interactive 21
packingducks N/A Tags: Brute Force, Dynamic Programming packingducks Classic Problem Batch 33
magicspell N/A Tags: Line Sweep/Sliding Window magicspell AOI 2023 Day 2 (shoryu386) Batch 23
magicboard N/A Tags: Adhoc, Math magicboard AOI 2023 Day 2 (shoryu386) Batch 21
alienalien N/A Tags: Syntax alienalien AOI 2023 Day 1 (shoryu386) Batch 61
magicstring N/A Tags: Syntax magicstring AOI 2023 Day 2 (shoryu386) Batch 35
matsuri N/A Tags: Dynamic Programming matsuri AOI 2023 Day 1 (shoryu386) Batch 19
mergeguessproblem N/A Tags: Joke Merge Guess Problem Hello 2024 (oolimry) Batch 28
motivation N/A Tags: Greedy Motivation is Dead AOI 2023 Day 1 (shoryu386) Batch 43
threetwentyoneam N/A Tags: Dynamic Programming threetwentyoneam AOI 2023 Day 1 (shoryu386) Batch 12
nprime2 N/A Funny Prime April Fools 2024 (errorgorn, oolimry) Batch 14
galaxycollapse N/A Tags: Graph Theory galaxycollapse AOI 2023 Day 2 (shoryu386) Batch 11
jamestreet N/A Tags: Joke Jame Street April Fools 2024 (oolimry) Communication 37
kanji N/A Tags: Information Theory kanji Dunjudge Archive Communication 2
messenger N/A Tags: Information Theory messenger Dunjudge Archive Communication 3
abc_apio23 N/A Tags: Constructive Algorithms, Divide and Conquer, Information Theory, Joke Alice, Bob and Circuit APIO 2023 Batch 25
sequence_apio23 N/A Tags: Data Structures Sequence APIO 2023 Interactive 5
cyberland_apio23 N/A Tags: Graph Theory Cyberland APIO 2023 Interactive 14
realfun N/A Tags: Binary Search Real Fun CPSPC 2010 Batch 3
roadtrip N/A Tags: Dynamic Programming, Graph Theory, Trees Road Trip Classic Problem Batch 16
pandanumbers N/A Tags: Data Structures, Meet in the Middle Numbers Dunjudge Archive Batch 14
doors N/A Tags: Graph Theory Doors Dunjudge Archive Batch 8
treasures N/A Tags: Graph Theory Stolen Treasures Dunjudge Archive Batch 9
kamion N/A Tags: Dynamic Programming kamion COCI 2010/2011 Batch 1
morefun N/A Tags: Dynamic Programming Even more fun CPSPC 2010 Batch 2
thief N/A Tags: Dynamic Programming thief Dunjudge Archive Batch 1
conlang N/A Tags: Syntax conlang HCI EC³ Beginner Contest (geometric) Batch 111
noodlestore N/A Tags: Data Structures noodlestore HCI EC³ Beginner Contest (WH8) Batch 33
hackthectf N/A Tags: Binary Search, Greedy hackthectf HCI EC³ Beginner Contest (blackscreen1, shoryu386) Batch 8
waterbottles N/A Tags: Adhoc, Math waterbottles HCI EC³ Beginner Contest (AlphanumericUsername) Batch 39
parallelogramfest N/A Tags: Dynamic Programming parallelogramfest HCI EC³ Beginner Contest (Tyx2019) Batch 11
islands2 N/A Tags: Dynamic Programming, Graph Theory, Trees Islands IOI 2008 Batch 5
rooms N/A Tags: Dynamic Programming, Graph Theory, Trees rooms RI Mock NOI 2015 Batch 8
toxicwaste N/A Tags: Graph Theory Toxic Waste Dunjudge Archive Batch 1
steeple N/A Tags: Graph Theory Cow Steeplechase USACO 2011 Nov, Gold Batch 1
pancake_ex N/A Tags: Brute Force, Meet in the Middle Pancake (Extreme) Classic Problem Batch 3
expressways N/A Tags: Graph Theory expressways Dunjudge Archive Batch 8
gugdance N/A Tags: Constructive Algorithms, Graph Theory gugdance Dunjudge Archive Batch 2
kas N/A Tags: Dynamic Programming kas COCI 2016/2017 Round #4 Batch 9
towns N/A Tags: Graph Theory, Information Theory, Trees Towns IOI 2015 Interactive 1
sorting N/A Tags: Binary Search, Constructive Algorithms Sorting IOI 2015 Interactive 1
teams N/A Tags: Constructive Algorithms, Data Structures, Dynamic Programming Teams IOI 2015 Interactive 1
guessproblem4 N/A Tags: Explicitly Excluded (from IOI), Joke Guess Problem 4 April Fools 2023 (ryangohca, ecxx) Interactive 5
deciphering_zane_ex N/A Tags: Explicitly Excluded (from IOI), Joke Decusohrting Znakeje: extendied c34s8hb April Fools 2023 (ecxx, Xiaoyang, leyi) Interactive 7
scales N/A Tags: Brute Force, Information Theory Scales IOI 2015 Interactive 2
guessproblem3 N/A Tags: Joke Guess Problem 3 April Fools 2023 (ecxx) Batch 13
boxes N/A Tags: Dynamic Programming, Greedy Boxes with souvenirs IOI 2015 Interactive 8
qualityinspections N/A Tags: Data Structures qualityinspections ANDSS Coding Head Sel 2023 Duel (penguin133, shoryu386) Batch 19
trivialexam_ex_ex N/A Tags: Explicitly Excluded (from IOI), Joke trivialexam_ex_ex April Fools 2023 (oolimry, elainagrey, Xiaoyang) Batch 48
paint_ioi N/A Tags: Adhoc, Dynamic Programming Paint By Numbers IOI 2016 Interactive 2
shortcut N/A Tags: Binary Search, Graph Theory, Line Sweep/Sliding Window Shortcut IOI 2016 Interactive 1
ducktransport N/A Tags: Binary Search, Greedy ducktransport ANDSS Coding Head Sel 2023 Duel (bron, shoryu386) Batch 27
trivialexam_ex N/A Tags: Explicitly Excluded (from IOI), Joke trivialexam_ex April Fools 2023 (Xiaoyang) Batch 10
1402_2 N/A Tags: Graph Theory, Joke 1402_2 April Fools 2023 (blackscreen1) Batch 17
soos N/A Tags: Graph Theory, Joke, Math soos April Fools 2023 (hmm) Batch 10
findinggrass_ex N/A Tags: Joke Helping an ex-cs student touch grass while blindfolded with my insane programming skills in another world April Fools 2023 (siewjh) Batch 27
sniper N/A Tags: Math sniper ANDSS Coding Head Sel 2023 Duel (shoryu386) Batch 29
motest2 N/A Tags: Joke, Math MOtest2 April Fools 2023 (Tyx2019) Batch 33
onlineexam N/A Tags: Constructive Algorithms, Explicitly Excluded (from IOI), Information Theory, Joke, Math Online Exam April Fools 2023 (zengminghao) Interactive 3
trivialexam N/A Tags: Explicitly Excluded (from IOI), Joke 小菜一碟 April Fools 2023 (Xiaoyang) Batch 40
guessproblem2 N/A Tags: Explicitly Excluded (from IOI), Joke Guess Problem 2 April Fools 2023 (ryangohca) Batch 15
whatisthisactf N/A Tags: Explicitly Excluded (from IOI), Joke What is this, a CTF? April Fools 2023 (tux) Interactive 10
nevergiveup N/A Tags: Joke Never Give Up April Fools 2023 (bron, penguin133) Batch 68
hiddenarray N/A Tags: Joke, Math Hidden Array April Fools 2023 (ecxx) Batch 6
goodprogrammer N/A Tags: Explicitly Excluded (from IOI), Joke Be a Good Programmer April Fools 2023 (shoryu386) Batch 107
gerrymandering_ex N/A Tags: Greedy Gerrymandering (Extreme) Dec Course 2021 BAPS (modified) (beepbeepsheep) Batch 1
toxic N/A Tags: Binary Search, Information Theory Toxic Gene NOI 2023 Finals (bensonlzl) Interactive 9
topical N/A Tags: Adhoc Topical NOI 2023 Finals (bensonlzl) Batch 85
inspections N/A Tags: Data Structures Inspections NOI 2023 Finals (bensonlzl) Batch 39
airplane N/A Tags: Graph Theory, Greedy Airplane NOI 2023 Finals (bensonlzl, oolimry) Batch 50
curtains N/A Tags: Data Structures, Divide and Conquer Curtains NOI 2023 Finals (bensonlzl) Batch 32
pplow N/A Tags: Line Sweep/Sliding Window pplow Classic Problem Batch 19
deciphering_zane N/A Tags: Explicitly Excluded (from IOI), Joke Dceiprhenig Zane April Fools 2023 (Xiaoyang, leyi, ecxx, tux, Craftless, Gladius3482) Batch 25
simplebridges N/A Tags: Math, Syntax simplebridges ANDSS February 2023 Contest (shoryu386) Batch 184
network N/A Tags: Graph Theory, Greedy, Trees network NOI 2023 Qualification Contest (errorgorn) Batch 49
doll_noi N/A Tags: Data Structures, Greedy doll_noi NOI 2023 Qualification Contest (yanhao, oolimry) Batch 88
burgers N/A Tags: Binary Search, Data Structures, Math burgers NOI 2023 Qualification Contest (oolimry, bensonlzl, yanhao) Batch 84
swords N/A Tags: Syntax swords NOI 2023 Qualification Contest (yanhao) Batch 227
area_noi N/A Tags: Syntax area_noi NOI 2023 Qualification Contest (yanhao) Batch 440
railroad N/A Tags: Graph Theory, Greedy Roller Coaster Railroad IOI 2016 Interactive 3
simurgh N/A Tags: Graph Theory, Information Theory, Trees Simurgh IOI 2017 Interactive 1
iqtest4 N/A Tags: Math iqtest4 Valentine's Day Contest 2023 (zixuan) Batch 9
xorsplit N/A Tags: Bitmask, Divide and Conquer, Explicitly Excluded (from IOI) xorsplit Valentine's Day Contest 2023 (blackscreen1, pavement, maomao90, zaneyu) Batch 2
motest N/A Tags: Math MOtest Valentine's Day Contest 2023 (Tyx2019) Batch 21
messages N/A Tags: Information Theory Messages Valentine's Day Contest 2023 (beepbeepsheep) Communication 5
squidgame N/A Tags: Data Structures Squid Game 2: Hot Chocolate Valentine's Day Contest 2023 (Wenkai, beepbeepsheep) Batch 3
fractional_knapsack N/A Tags: Greedy fractional_knapsack Classic Problem Batch 18
magiccarps N/A Tags: Brute Force, Syntax magiccarps ANDSS Contest 2 (Greedy and Bruteforce) (shoryu386) Batch 60
binaryspells N/A Tags: Greedy, Math binaryspells ANDSS Contest 2 (Greedy and Bruteforce) (shoryu386) Batch 47
cny N/A Tags: Greedy cny ANDSS Contest 2 (Greedy and Bruteforce) (LCJLY) Batch 82
sandcity N/A Tags: Dynamic Programming sandcity Random Idea (shoryu386, Reverberate) Batch 21
experimentexplodeexpel N/A Tags: Explicitly Excluded (from IOI), Math Experiment. Explode. Expel. Dunjudge Archive Batch 15
lightsflip N/A Tags: Adhoc, Dynamic Programming lightsflip Dunjudge Archive Batch 12
happyarrays N/A Tags: Dynamic Programming, Line Sweep/Sliding Window Happy Arrays Classic Problem (penguin133) Batch 20
hieroglyphs N/A Tags: Graph Theory, Math hieroglyphs ACM/ICPC World Finals 2011 Batch 1
celldivision N/A Tags: Binary Search, Math celldivision Random Idea (shoryu386) Batch 30
numberfun N/A Tags: Dynamic Programming numberfun Dunjudge Archive Batch 41
lightsout N/A Tags: Constructive Algorithms, Dynamic Programming, Graph Theory, Trees Light's Out Dunjudge Archive Interactive 4
rbpoints N/A Tags: Data Structures, Greedy rbpoints ABC 091C Batch 12
removemq N/A Tags: Brute Force, Data Structures, Greedy removemq ARC 098E Batch 5
fliprect N/A Tags: Adhoc, Data Structures, Dynamic Programming fliprect ARC 081F Batch 1
candies2 N/A Tags: Greedy candies2 ARC 064A Batch 23
cipele N/A Tags: Binary Search, Greedy cipele COCI 2018/2019 Batch 2
merchant2 N/A Tags: Greedy merchant2 ABC 047D Batch 7
colouring N/A Tags: Graph Theory colouring AGC 012B Batch 6
zamjena N/A Tags: Graph Theory zamjena COCI 2018/2019 Batch 6
dogmonkey N/A Tags: Math dogmonkey ABC 065C Batch 40
goodgame N/A Tags: Explicitly Excluded (from IOI), Math goodgame ARC 072D Batch 19
split2 N/A Tags: Graph Theory, Greedy, Trees Split December Course 2018 Elementary Final Contest Batch 11
personalspace N/A Tags: Binary Search, Dynamic Programming, Line Sweep/Sliding Window personalspace December Course 2018 Elementary Final Contest Batch 13
nou N/A Tags: Adhoc no "u" December Course 2018 Elementary Final Contest (bensonlzl) Batch 52
socks N/A Tags: Adhoc, Syntax socks December Course 2018 Elementary Final Contest (Damian) Batch 46
souvenirs2 N/A Tags: Data Structures, Math souvenirs2 ARC 068C Batch 5
competitiveteams N/A Tags: Graph Theory, Square Root Decomposition Competitive Teams HackerRank Batch 2
avoidcollision N/A Tags: Dynamic Programming, Graph Theory avoidcollision ARC 090C Batch 4
build N/A Tags: Graph Theory, Greedy build ABC 065D Batch 22
nuskevsphantom N/A Tags: Graph Theory, Trees Nuske vs Phantom Thnook AGC 015C Batch 6
treeinteger N/A Tags: Graph Theory, Greedy, Trees treeinteger ARC 063E Batch 3
shorten N/A Tags: Brute Force, Graph Theory, Trees shorten AGC 001C Batch 9
squaregraph N/A Tags: Graph Theory Square Graph AGC 011C Batch 3
masquerade N/A Tags: Graph Theory, Math masquerade BZOJ 1064 Batch 1
restoreroad N/A Tags: Graph Theory Restore Road ABC 074D Batch 6
kfc N/A Tags: Math, Syntax kfc ANDSS Contest 1 (Syntax) (haydendoo) Batch 89
passwords N/A Tags: Graph Theory passwords Dunjudge Archive Batch 13
harmony N/A Tags: Graph Theory harmony Dunjudge Archive Batch 2
homeworkextension N/A Tags: Syntax homeworkextension ANDSS Contest 1 (Syntax) (Josh28) Batch 79
rabbitmilk N/A Tags: Greedy rabbitmilk Dunjudge Archive Batch 20
judgequeue N/A Tags: Data Structures judgequeue Dunjudge Archive Interactive 4
ultimateifelse N/A Tags: Syntax Ultimate ifelse ANDSS Contest 1 (Syntax) (LCJLY) Batch 191
duckwander N/A Tags: Syntax duckwander ANDSS Contest 1 (Syntax) (shoryu386) Batch 104
guards_easy N/A Tags: Binary Search, Data Structures, Dynamic Programming, Joke Guards (Easy) IOI 2014 Practice Contest 2 (modified) (beepbeepsheep) Batch 10
volcanic N/A Tags: Binary Search, Graph Theory Volcanic Travel ANDSS Welcome 2023 (Day 2) (shoryu386) Batch 20
palindromicfever N/A Tags: Dynamic Programming, Math Palindromic Fever ANDSS Welcome 2023 (Day 2) (shoryu386) Batch 15
belittle N/A Tags: Dynamic Programming belittle ANDSS Welcome 2023 (Day 2) (shoryu386) Batch 33
numbergame N/A Tags: Binary Search numbergame ANDSS Welcome 2023 (Day 2) (shoryu386) Batch 32
snowball N/A Tags: Greedy, Syntax snowball ANDSS Welcome 2023 (Day 1) (shoryu386) Batch 146
swayingflowers N/A Tags: Math, Syntax swayingflowers ANDSS Welcome 2023 (Day 1) (shoryu386) Batch 209
telephone N/A Tags: Syntax Telephone Game ANDSS Welcome 2023 (Day 1) (shoryu386) Batch 115
modulochain N/A Tags: Math, Syntax modulochain Anderson Trg (shoryu386) Batch 122
perfectprimes N/A Tags: Math perfectprimes Anderson Fluff Contest (Josh28, shoryu386) Batch 45
duckwar N/A Tags: Binary Search, Greedy, Math duckwar Anderson Fluff Contest (shoryu386) Batch 23
nicenumber N/A Tags: Joke nicenumber Anderson Fluff Contest (haydendoo) Batch 117
football N/A Tags: Dynamic Programming football Anderson Fluff Contest (LCJLY) Batch 20
veryeasyproblem N/A Tags: Joke veryeasyproblem Anderson Fluff Contest (shoryu386) Batch 340
royalguards N/A Tags: Data Structures, Dynamic Programming royalguards AMOS OI 2022 (buffed) (shoryu386) Batch 13
guards_ex N/A Tags: Adhoc, Greedy, Joke Guards (Extreme) Zane (zaneyu, ryangohca) Batch 52
nostatement N/A Tags: Joke, Math nostatement Dunjudge Archive Batch 24
guessproblem N/A Tags: Information Theory, Joke Guess Problem peepeepoopoo (Potato3218, ryangohca) Batch 42
reopening N/A Tags: Constructive Algorithms, Graph Theory, Trees Reopening Shop Dec Course 2022 BAPS (errorgorn, Halogen) Batch 27
kthpar N/A Tags: Divide and Conquer, Explicitly Excluded (from IOI), Graph Theory, Trees JiaHng couldn’t solve this lol folklore (errorgorn) Batch 2
removalcosts N/A Tags: Adhoc, Greedy, Math Removal Costs Dec Course 2022 BAPS (maomao90) Batch 21
findinggrass N/A Tags: Data Structures, Greedy Finding Grass Dec Course 2022 BAPS (hmm) Batch 17
valves N/A Tags: Data Structures Valves Dec Course 2022 BAPS (beepbeepsheep) Batch 2
hungryrabbits3 N/A Tags: Binary Search, Greedy Hungry Rabbits 3 Dec Course 2022 BAPS (bensonlzl) Batch 5
lctocd N/A Tags: Brute Force, Data Structures, Divide and Conquer, Graph Theory, Greedy, Trees LCT OCD Atcoder Nikkei Finals 2019 Batch 7
gohcart N/A Tags: Data Structures, Dynamic Programming, Graph Theory Goh Cart Codeforces 1715E (f0restf1re) Batch 23
newjeans N/A Tags: Divide and Conquer, Dynamic Programming Bob's New Jeans Codeforces 868F Batch 24
pipes N/A Tags: Graph Theory Pipes CEOI 2015 Batch 22
sherlockgraph N/A Tags: Graph Theory sherlockgraph HackerRank Batch 2
semiconnected N/A Tags: Graph Theory semiconnected Dunjudge Archive Batch 14
police N/A Tags: Dynamic Programming, Graph Theory Police Station CPSPC 2017 Batch 21
reachability N/A Tags: Dynamic Programming, Graph Theory reachability Classic Problem Batch 20
gotoubun N/A Tags: Data Structures, Dynamic Programming gotoubun folklore (errorgorn) Batch 38
hld2 N/A Tags: Data Structures, Graph Theory, Trees hld2 LOJ P3532 Batch 11
dynamicdiameter2 N/A Tags: Graph Theory, Trees Dynamic Diameter 2 RMI 2020 Batch 1
letterstamper_ex N/A Tags: Dynamic Programming Letter Stamper (Extreme) Google Code Jam 2010 (modified) (errorgorn, ryangohca) Batch 8
rainbowroad_ex N/A Tags: Dynamic Programming, Graph Theory, Trees Rainbow Road (Extreme) HCI-RI 2020 May Contest (modified) (errorgorn) Batch 8
socialdistance N/A Tags: Adhoc, Graph Theory, Trees Social Distance Codeforces 1381D Batch 4
rootedlca N/A Tags: Graph Theory, Trees Rooted LCA folklore (errorgorn) Batch 47
dynamicdiameter N/A Tags: Graph Theory, Trees Dynamic Diameter CEOI 2019 Batch 4
jumpontree N/A Tags: Graph Theory, Trees jumpontree yosupo's judge Batch 49
candyboxes N/A Tags: Data Structures candyboxes Rujia Liu's Present 3 (Kattis) Batch 47
iqtest3 N/A Tags: Constructive Algorithms, Graph Theory iqtest3 AGC 50A Batch 57
hld N/A Tags: Data Structures, Graph Theory, Trees hld LOJ P139 Batch 28
splittingtree N/A Tags: Graph Theory, Trees Splitting Tree LOJ P3213 Batch 1
love N/A Tags: Bitmask, Dynamic Programming, Graph Theory, Trees What is love? Luogu P8280 Batch 8
sumalllis N/A Tags: Bitmask, Dynamic Programming, Joke Sum All LIS Luogu P4484 (modified) (zaneyu) Batch 7
feelgood N/A Tags: Dynamic Programming, Math Feel Good Luogu P2602 Batch 28
closingshop N/A Tags: Dynamic Programming, Graph Theory Closing Shop Codeforces 721C Batch 32
redblacktree N/A Tags: Adhoc, Graph Theory, Trees redblacktree Codeforces 1156D Batch 46
obstacletree N/A Tags: Dynamic Programming, Graph Theory, Greedy, Trees obstacletree Codeforces 1528A Batch 43
treepruning2 N/A Tags: Graph Theory, Greedy, Trees Pruning Trees Codeforces 1593E (modified) (ecxx) Batch 33
treepruning N/A Tags: Brute Force, Graph Theory, Trees Tree Pruning Codeforces 1593E Batch 54
arraypartition N/A Tags: Data Structures, Dynamic Programming, Line Sweep/Sliding Window arraypartition Codeforces 487B Batch 30
bracketcoloring N/A Tags: Dynamic Programming bracketcoloring Codeforces 149D Batch 5
segmentoperations N/A Tags: Data Structures, Dynamic Programming, Math Segment Operations Codeforces 1743F Batch 15
paintrectangles N/A Tags: Data Structures, Line Sweep/Sliding Window paintrectangles Codeforces 983D Batch 8
specialmultiset N/A Tags: Data Structures specialmultiset Codeforces 981G Batch 13
shuffling N/A Tags: Dynamic Programming Shuffling ARC 065D Batch 13
obstacles N/A Tags: Binary Search, Dynamic Programming obstacles Codeforces 360B Batch 33
simpletask N/A Tags: Data Structures A Simple Task Codeforces 558E Batch 36
purplecandy N/A Tags: Data Structures, Dynamic Programming, Line Sweep/Sliding Window Purple Candy Classic Problem (shenxy13, ryangohca) Batch 70
exhibition N/A Tags: Greedy Exhibition JOI 2018/2019 Final Round Batch 50
add1 N/A Tags: Adhoc, Data Structures, Explicitly Excluded (from IOI), Joke, Math Add 1 April Fools 2024 (ryangohca) Batch 13
copyandpaste N/A Tags: Greedy Copy And Paste Codeforces 1688F Batch 11
packingpests N/A Tags: Data Structures, Dynamic Programming packingpests Kattis Batch 12
flipthat N/A Tags: Dynamic Programming, Math Flip That Codeforces 1630D Batch 13
lualectures N/A Tags: Constructive Algorithms, Greedy Lua Lectures Classic Problem Batch 75
luarulers N/A Tags: Greedy Lua Rulers Codeforces 1748C Batch 64
placingrouters N/A Tags: Greedy Placing Routers Codeforces 1764E Batch 19
movingboxes N/A Tags: Data Structures, Greedy movingboxes Codeforces 1030F Batch 13
mountainrange N/A Tags: Data Structures, Greedy mountainrange Codeforces 935F Batch 15
buygifts N/A Tags: Binary Search buygifts Codeforces 1619D Batch 61
addk N/A Tags: Data Structures, Math addk EJOI 2021 Batch 44
buycoke N/A Tags: Dynamic Programming Buying Coke Kattis Batch 38
letterstamper N/A Tags: Dynamic Programming Letter Stamper Google Code Jam 2010 (modified) Batch 53
lratio N/A Tags: Data Structures, Dynamic Programming L + Ratio Алгоритм 2022 Batch 29
weightlifting N/A Tags: Dynamic Programming weightlifting Google Code Jam 2022 Round 1A Batch 3
lamps N/A Tags: Graph Theory Lamps Codeforces 1290C Batch 10
friendlyrooks N/A Tags: Brute Force, Greedy Friendly Rooks 2022 December Course Diagnostic Test (errorgorn) Batch 13
badchef N/A Tags: Graph Theory Bad Chef NUS CS3233 2020 (Kattis) Batch 15
anutforajaroftuna N/A Tags: Dynamic Programming, Greedy A Nut For A Jar Of Tuna Codeforces 730J Batch 21
rangedeleting N/A Tags: Line Sweep/Sliding Window Range Deleting Codeforces 1167E Batch 23
stories N/A Tags: Dynamic Programming, Graph Theory Stories Cat RI November Course Stage 2 Selection Test 2022 (AJR) Batch 47
garden N/A Tags: Graph Theory Garden Cat RI November Course Stage 2 Selection Test 2022 (tux, ryangohca) Batch 47
routine N/A Tags: Binary Search Routine Cat RI November Course Stage 2 Selection Test 2022 (wangy412) Batch 130
eating N/A Tags: Data Structures Eating Cat RI November Course Stage 2 Selection Test 2022 (wangy412) Batch 105
reading N/A Tags: Math, Syntax Reading Cat RI November Course Stage 2 Selection Test 2022 (wangy412) Batch 133
choochoo N/A Tags: Syntax Choo Choo RI-HCI Final Contest 2022 (bensonlzl) Batch 266
superpiece N/A Tags: Adhoc, Graph Theory Superpiece EGOI 2022 Day 2 Batch 4
datacenters N/A Tags: Adhoc Data Centers EGOI 2022 Day 2 Batch 15
tourists N/A Tags: Data Structures, Graph Theory, Trees Tourists EGOI 2022 Day 1 Batch 5
subsetmex N/A Tags: Adhoc Subset Mex EGOI 2022 Day 1 Batch 20
legowall N/A Tags: Dynamic Programming, Math Lego Wall EGOI 2022 Day 1 Batch 7
candycrush N/A Tags: Dynamic Programming Candy Crush Dunjudge Archive Batch 2
alternating N/A Tags: Dynamic Programming, Greedy alternating BOI 2018 Batch 1
lampice N/A Tags: Binary Search, Dynamic Programming, Graph Theory, Trees lampice COCI 2019/2020 Batch 2
naturalpark N/A Tags: Graph Theory, Information Theory naturalpark JOISC 2017 Interactive 1
evolution N/A Tags: Graph Theory, Trees Evolution Korean IOI Selection Day 1 Batch 1
dzumbus N/A Tags: Dynamic Programming, Graph Theory, Trees Džumbus COCI 2019/2020 Batch 8
unitedcows N/A Tags: Data Structures, Line Sweep/Sliding Window United Cows USACO 2021 Open, Gold Batch 12
flyingsquirrel N/A Tags: Data Structures, Dynamic Programming, Greedy, Slope Trick Flying Squirrel Korean IOI Selection Day 1 Batch 6
delegation N/A Tags: Dynamic Programming, Graph Theory, Trees Delegation USACO 2020 Feb, Gold Batch 5
sjeckanje N/A Tags: Data Structures, Greedy sjeckanje COCI 2020/2021 Batch 3
joker N/A Tags: Adhoc, Divide and Conquer, Graph Theory joker BOI 2020 Batch 3
sumzero N/A Tags: Adhoc, Binary Search, Dynamic Programming sumzero RMI 2020 Batch 8
izbori N/A Tags: Adhoc, Data Structures, Math izbori COCI 2021/2022 Batch 7
sandcastle2 N/A Tags: Bitmask, Dynamic Programming, Graph Theory Sandcastle 2 JOI 2022 Final Round Batch 2
railwaytrip2 N/A Tags: Data Structures Railway Trip 2 JOI 2022 Final Round Batch 3
election_joi22 N/A Tags: Dynamic Programming Let's Win the Election JOI 2022 Final Round Batch 10
selfstudy N/A Tags: Binary Search, Greedy Self Study JOI 2022 Final Round Batch 11
intercastellar N/A Tags: Adhoc Intercastellar JOI 2022 Final Round Batch 18
islands N/A Tags: Graph Theory Thousands Islands IOI 2022 (Day 2) Interactive 3
insects N/A Tags: Adhoc, Binary Search, Information Theory Rarest Insects IOI 2022 (Day 2) Interactive 3
circuit N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees Digital Circuit IOI 2022 (Day 2) Interactive 7
towers_ioi N/A Tags: Binary Search, Data Structures, Greedy Radio Towers IOI 2022 (Day 1) Interactive 3
prison N/A Tags: Constructive Algorithms, Divide and Conquer Prisoner Challenge IOI 2022 (Day 1) Interactive 5
fish N/A Tags: Data Structures, Dynamic Programming Catfish Farm IOI 2022 (Day 1) (oolimry) Interactive 7
shopping_joi N/A Tags: Binary Search, Data Structures, Divide and Conquer, Information Theory shopping_joi JOISC 2021 Communication 1
bodyguard N/A Tags: Dynamic Programming bodyguard JOISC 2021 Batch 3
rainingseason N/A Tags: Data Structures, Graph Theory, Trees rainingseason Codeforces 1019E Batch 4
minerals N/A Tags: Information Theory minerals JOISC 2019 Interactive 9
computergame N/A Tags: Binary Search, Dynamic Programming, Greedy computergame Codeforces 1067D Batch 2
woodenraft N/A Tags: Greedy, Math woodenraft Codeforces 1223G Batch 5
doubletrip N/A Tags: Brute Force, Constructive Algorithms, Graph Theory Double Trip Codeforces 1343E Batch 17
pizzeria N/A Tags: Data Structures Pizzeria Queries CSES Batch 51
fever N/A Tags: Graph Theory, Greedy fever JOISC 2021 Batch 2
canbashsavetheday N/A Tags: Data Structures, Graph Theory, Trees canbashsavetheday Codeforces 757G Batch 6
cupboardjumps N/A Tags: Dynamic Programming, Slope Trick cupboardjumps Codeforces 1500F Batch 3
colourwalk N/A Tags: Graph Theory Colour Walk RI-HCI Final Contest 2022 Batch 6
markinghouses N/A Tags: Bitmask, Dynamic Programming Marking Houses RI-HCI Final Contest 2022 Batch 12
bigbinarytree N/A Tags: Greedy Big Binary Tree RI-HCI Final Contest 2022 (bensonlzl) Batch 20
hungryrabbits2 N/A Tags: Data Structures Hungry Rabbits 2 RI-HCI Final Contest 2022 (bensonlzl) Batch 50
hungryrabbits1 N/A Tags: Brute Force, Greedy Hungry Rabbits 1 RI-HCI Final Contest 2022 (bensonlzl) Batch 83
elca N/A Tags: Data Structures, Graph Theory, Trees elca Codeforces 482E Batch 4
tokitsukazeandexplosion N/A Tags: Binary Search, Greedy tokitsukazeandexplosion Codeforces 1190E Batch 8
cursordistance N/A Tags: Binary Search, Math cursordistance Codeforces 1246F Batch 1
twoavenues N/A Tags: Data Structures, Graph Theory, Trees twoavenues Codeforces 1648F Batch 2
strangedevice2 N/A Tags: Binary Search, Graph Theory, Information Theory, Trees strangedevice2 Codeforces 1158E Interactive 5
oenothera N/A Tags: Data Structures, Greedy, Square Root Decomposition oenothera Codeforces 1039E Batch 5
learningtrack2 N/A Tags: Data Structures, Dynamic Programming learningtrack2 LOJ #3068 Batch 5
industriouslibrarian N/A Tags: Data Structures industriouslibrarian LOJ #2639 Batch 8
sarenlist N/A Tags: Bitmask, Brute Force, Graph Theory, Trees sarenlist COCI 2021/2022 Batch 8
beacon N/A Tags: Dynamic Programming, Math Beacon Towers Grand Prix of Seoul Batch 24
cactus N/A Tags: Dynamic Programming, Graph Theory, Trees cactus LOJ #2250 Batch 7
superpozicija N/A Tags: Constructive Algorithms, Greedy superpozicija COI 2022 Batch 5
passes N/A Tags: Bitmask, Brute Force, Greedy, Math passes BOI 2022 Batch 10
deletingnumbers N/A Tags: Constructive Algorithms, Greedy Deleting Numbers Grand Prix of Urals Batch 49
preciseforecast N/A Tags: Graph Theory preciseforecast LOJ #3101 Batch 3
sequence_loj N/A Tags: Graph Theory, Greedy sequence_loj LOJ #3158 Batch 1
flowercards N/A Tags: Graph Theory flowercards LOJ #536 Batch 2
wavynumbers N/A Tags: Brute Force, Math, Meet in the Middle wavynumbers Codeforces 273E Batch 5
perishableroads N/A Tags: Graph Theory perishableroads Codeforces 773D Batch 3
cakeslicing N/A Tags: Constructive Algorithms cakeslicing LOJ #6744 Batch 8
gate N/A Tags: Data Structures, Graph Theory, Trees gate LOJ #2474 Batch 1
greatmerge N/A Tags: Data Structures, Graph Theory, Trees greatmerge LOJ #2230 Batch 3
rainbowfish N/A Tags: Dynamic Programming, Graph Theory, Trees Rainbow Fish Mock APIO 2015 Batch 11
treepainting N/A Tags: Data Structures, Graph Theory, Trees treepainting LOJ #2001 Batch 3
kucice N/A Tags: Line Sweep/Sliding Window kucice COCI 2021/2022 Batch 4
multiplechoice N/A Tags: Constructive Algorithms multiplechoice USACO 2022 Jan, Platinum Batch 6
constellation2 N/A Tags: Line Sweep/Sliding Window constellation2 JOISC 2014 Batch 3
winetasting N/A Tags: Data Structures winetasting LOJ #2133 Batch 3
earthwormlines N/A Tags: Data Structures earthwormlines LOJ #2303 Batch 3
coolslogans N/A Tags: Data Structures coolslogans LOJ #6288 Batch 2
spiderclimb N/A Tags: Dynamic Programming, Trees spiderclimb LOJ #3661 Batch 2
tickets_loj N/A Tags: Divide and Conquer, Dynamic Programming, Trees tickets_loj LOJ #2249 Batch 3
learningtrack N/A Tags: Divide and Conquer learningtrack LOJ #2773 Batch 7
buildings N/A Tags: Data Structures, Line Sweep/Sliding Window Buildings Dunjudge Archive Batch 12
thesis N/A Tags: Binary Search, Dynamic Programming, Graph Theory, Trees thesis LOJ #511 Batch 1
paintbyrectangles N/A Tags: Graph Theory, Line Sweep/Sliding Window paintbyrectangles USACO 2022 Feb, Platinum Batch 1
servers N/A Tags: Data Structures, Divide and Conquer, Graph Theory, Trees Inside information BOI 2021 Batch 10
present N/A Tags: Math present RMI 2021 Batch 1
nom N/A Tags: Dynamic Programming, Math nom RMI 2021 Batch 3
semafor N/A Tags: Explicitly Excluded (from IOI), Graph Theory, Math semafor COI 2020 Batch 7
mars N/A Tags: Graph Theory, Information Theory Mars APIO 2022 Interactive 2
paint_coi N/A Tags: Graph Theory, Square Root Decomposition paint_coi COI 2020 Batch 2
manymsts N/A Tags: Binary Search, Graph Theory manymsts LOJ #3635 Batch 1
souvenirs N/A Tags: Data Structures souvenirs Codeforces 765F Batch 7
packaging N/A Tags: Data Structures, Greedy, Math Packaging Codeforces 1690E Batch 40
pastiri N/A Tags: Graph Theory, Greedy, Trees pastiri COI 2019/2020 Batch 11
edgeremove N/A Tags: Dynamic Programming, Graph Theory, Trees edgeremove LOJ #3705 Batch 2
redistributinggifts N/A Tags: Bitmask, Dynamic Programming redistributinggifts USACO 2022 Feb Gold Batch 8
travelling N/A Tags: Math travelling ASEAN Sparring 2022 (kevinsogo) Batch 3
wabot2 N/A Tags: Constructive Algorithms, Data Structures, Greedy wabot2 ASEAN Sparring 2022 (bensonlzl) Batch 10
kmxorm N/A Tags: Bitmask, Math, Meet in the Middle kmxorm ASEAN Sparring 2022 (zscoder) Batch 10
events N/A Tags: Data Structures, Greedy events BOI 2022 Batch 16
arrangement N/A Tags: Data Structures, Dynamic Programming, Greedy arrangement LOJ #3327 Batch 1
seqtransform N/A Tags: Brute Force, Data Structures, Greedy seqtransform LOJ #3704 Batch 4
smokeflower N/A Tags: Data Structures, Divide and Conquer, Line Sweep/Sliding Window smokeflower Classic Problem Batch 13
zhylanio N/A Tags: Binary Search, Brute Force, Data Structures zhylanio IZHO 2022 Batch 4
index N/A Tags: Binary Search, Data Structures index COCI 2020/2021 Contest 6 Batch 29
urbanplanning N/A Tags: Graph Theory, Trees urbanplanning IZhO 2022 Batch 3
island_boi N/A Tags: Graph Theory, Greedy, Trees island BOI 2022 Batch 20
watchmen N/A Tags: Graph Theory watchmen BOI 2021 Batch 1
vault N/A Tags: Dynamic Programming, Greedy vault BOI 2022 Batch 8
countinghaybales N/A Tags: Dynamic Programming countinghaybales USACO 2022 Jan, Platinum Batch 12
phonenumbers N/A Tags: Bitmask, Dynamic Programming phonenumbers USACO 2022 Feb, Platinum Batch 2
perm N/A Tags: Constructive Algorithms Permutation APIO 2022 Interactive 6
game N/A Tags: Graph Theory Game APIO 2022 Interactive 3
prize N/A Tags: Binary Search, Information Theory The Big Prize IOI 2017 Interactive 3
bingo N/A Tags: Adhoc, Constructive Algorithms Bingo Grand Prix of Daejeon Batch 41
sculptures_apio15 N/A Tags: Bitmask, Dynamic Programming Bali Sculptures APIO 2015 Batch 13
train_ioi N/A Tags: Graph Theory Toy Train IOI 2017 Interactive 2
wiring_ioi N/A Tags: Dynamic Programming Wiring IOI 2017 Interactive 5
gap N/A Tags: Information Theory, Math Gap APIO 2016 Interactive 21
boat N/A Tags: Dynamic Programming, Math Boat APIO 2016 Batch 3
koala N/A Tags: Binary Search, Constructive Algorithms, Divide and Conquer, Information Theory Koala Game APIO 2017 Interactive 2
rainbow N/A Tags: Data Structures, Graph Theory, Math Land of the Rainbow Gold APIO 2017 Interactive 5
alien10 N/A Tags: Explicitly Excluded (from IOI), Math alien10 uwu (errorgorn) Batch 1
tomskitchen N/A Tags: Dynamic Programming Tom’s Kitchen BOI 2019 Day 2 Batch 3
visiting N/A Tags: Graph Theory, Trees visiting Dunjudge Archive Batch 4
coingame N/A Tags: Adhoc, Explicitly Excluded (from IOI) coingame NTST 2015 Batch 19
funnynim N/A Tags: Explicitly Excluded (from IOI), Math funnynim IMO Shortlist 2015 Batch 25
neila N/A Tags: Adhoc, Math neila RMM 2013/5 Batch 4
osumnjiceni N/A Tags: Data Structures, Greedy, Trees Osumnjičeni COCI 2021/2022 Batch 9
alien9 N/A Tags: Adhoc, Dynamic Programming, Math alien9 IMO Shortlist 1996 Batch 9
streetlamps_ex N/A Tags: Data Structures, Divide and Conquer Street Lamps!! APIO 2019 but with more pain Batch 2
alice N/A Tags: Graph Theory, Information Theory Alice IMO Shortlist 2019 Interactive 7
factories N/A Tags: Data Structures, Divide and Conquer, Graph Theory, Trees factories JOI 2014 Open Interactive 28
firecracker N/A Tags: Data Structures, Greedy firecracker CNY Contest 2019 Batch 27
bananadance N/A Tags: Math bananadance Dunjudge Archive Batch 5
sumo N/A Tags: Binary Search, Graph Theory sumo COCI 2013/2014 Batch 14
election_joi N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees Election Campaign JOI Open 2015 Batch 4
valley N/A Tags: Divide and Conquer, Graph Theory, Trees Alpine valley BOI 2019 Day 1 Batch 15
binaryseq N/A Tags: Math BinarySeq Dunjudge Archive (bensonlzl) Batch 3
kusac N/A Tags: Math, Syntax kusac COCI 2013/2014 Batch 32
gathering N/A Tags: Graph Theory, Greedy gathering USACO 2018 December Platinum Batch 1
ples N/A Tags: Greedy ples COCI 2011/2012 Batch 6
convention N/A Tags: Binary Search, Greedy convention USACO 2018 December Silver Batch 18
sequence N/A Tags: Adhoc, Greedy sequence AtCoder Batch 8
iqtest2 N/A Tags: Math iqtest2 April Fools' 2022 (errorgorn) Batch 45
kronican N/A Tags: Bitmask, Dynamic Programming kronican COCI 2016/2017 Batch 6
maxmex N/A Tags: Data Structures, Graph Theory, Trees Max Mex Dunjudge Archive Batch 1
paleta N/A Tags: Dynamic Programming, Graph Theory, Math paleta COCI 2013/2014 Batch 2
closedpath N/A Tags: Graph Theory, Trees closedpath Dunjudge Archive Batch 20
mountain N/A Tags: Data Structures Mountain IOI 2005 Batch 28
papplesort N/A Tags: Data Structures papplesort Dunjudge Archive Batch 6
camels N/A Tags: Data Structures Guessing Camels NWERC 2015 Batch 16
flowering N/A Tags: Data Structures flowering COCI 2008/2009 Batch 19
inversionsum N/A Tags: Dynamic Programming, Math inversionsum Dunjudge Archive Batch 2
rabbitradar N/A Tags: Data Structures, Dynamic Programming rabbitradar Dunjudge Archive (bensonlzl) Batch 6
manhattancompass N/A Tags: Binary Search, Graph Theory manhattancompass AtCoder Batch 4
graph N/A Tags: Graph Theory, Greedy, Trees graph Dunjudge Archive Batch 11
decayedbridges N/A Tags: Graph Theory decayedbridges ABC 120D Batch 49
goodseq N/A Tags: Data Structures goodseq Dunjudge Archive Batch 86
ballsofbuma N/A Tags: Adhoc Balls of Buma Dunjudge Archive Batch 12
ispit N/A Tags: Adhoc ispit COCI 2018/2019 Batch 7
mathtest N/A Tags: Math, Syntax mathtest Dunjudge Archive Batch 28
network2 N/A Tags: Data Structures, Graph Theory, Trees network Dunjudge Archive Batch 10
repairs N/A Tags: Data Structures, Graph Theory, Trees repairs Dunjudge Archive Batch 22
grassplant N/A Tags: Data Structures, Graph Theory, Trees Grass Planting Dunjudge Archive Batch 63
cowland N/A Tags: Data Structures, Graph Theory, Trees Cow Land USACO 2019 February Contest, Gold Batch 41
foodchain N/A Tags: Math, Syntax Food Chain Dec Trg 2019 (Elementary) Batch 344
rating N/A Tags: Adhoc, Math Rating Changes Dec Trg 2019 (Elementary) Batch 25
cross N/A Tags: Dynamic Programming Cross Dunjudge Archive Batch 7
trespasser N/A Tags: Bitmask, Information Theory ADVANCED Trespasser 2019 IOI Problem Setter Contest (bensonlzl) Interactive 2
enumeratingbrackets N/A Tags: Dynamic Programming Enumerating Brackets Waterloo Programming Contest 2016-10-01 Batch 3
fruits_noi N/A Tags: Data Structures, Dynamic Programming Fruits NOI 2022 Finals (bensonlzl) Batch 3
grapevine N/A Tags: Data Structures, Divide and Conquer, Graph Theory, Trees Grapevine NOI 2022 Finals (huajun, jeff_) Batch 14
towers_noi N/A Tags: Constructive Algorithms, Data Structures, Greedy Towers NOI 2022 Finals (ngyupeng6) Batch 17
gymbadges N/A Tags: Dynamic Programming, Greedy Gym Badges NOI 2022 Finals (huajun) Batch 55
votingcities N/A Tags: Bitmask, Graph Theory Voting Cities NOI 2022 Finals Batch 58
rarkids N/A Tags: Constructive Algorithms, Math rarkids IOI Sparring 2018 SGP Interactive 7
hanabi N/A Tags: Binary Search, Data Structures hanabi IOI Sparring 2018 SGP Batch 1
weddingcity N/A Tags: Constructive Algorithms, Graph Theory weddingcity IOI Sparring 2018 SGP Batch 4
wheelofmisfortune N/A Tags: Adhoc, Brute Force, Math Wheel of Misfortune IOI 2020 Practice Session Batch 1
cakeatstake N/A Tags: Data Structures Cake at Stake IOI 2020 Practice Session Batch 2
triumvirate N/A Tags: Dynamic Programming Triumvirate IOI 2020 Practice Session Batch 2
cellulardata N/A Tags: Bitmask, Dynamic Programming, Explicitly Excluded (from IOI), Math Cellular Data IOI 2020 Practice Session Batch 1
trackingtraining N/A Tags: Graph Theory, Math Tracking Training IOI 2020 Practice Session Batch 4
goneviral N/A Tags: Binary Search, Graph Theory Gone Viral IOI 2020 Practice Session Batch 10
wakeup N/A Tags: Binary Search, Data Structures Wake Up IOI 2020 Practice Session Batch 4
wearenumberone N/A Tags: Graph Theory We Are Number One IOI 2020 Practice Session Batch 2
powerpoints N/A Tags: Constructive Algorithms Power Points IOI 2020 Practice Session Batch 2
idigit N/A Tags: Bitmask, Math I Dig It! IOI 2020 Practice Session Batch 4
styles N/A Tags: Binary Search, Data Structures, Dynamic Programming Styles IOI 2020 Practice Session Batch 7
synergies N/A Tags: Constructive Algorithms, Graph Theory Synergies IOI 2020 Practice Session Batch 2
supermarkets N/A Tags: Data Structures Supermarkets IOI 2020 Practice Session Batch 3
filibuster N/A Tags: Data Structures Filibuster IOI 2020 Practice Session Batch 2
firing N/A Tags: Data Structures Firing IOI 2020 Practice Session Batch 2
figures N/A Tags: Binary Search, Dynamic Programming Figures IOI 2020 Practice Session Batch 2
banks N/A Tags: Graph Theory Banks IOI 2020 Practice Session Batch 11
generosity N/A Tags: Joke Generosity April Fools' 2022 (oolimry) Batch 207
alphabrackets N/A Tags: Data Structures, Dynamic Programming alphabrackets Dec Course Final Contest 2017 Batch 10
luckynumbers2 N/A Tags: Math luckynumbers2 Dec Course Final Contest 2017 Batch 64
cattown N/A Tags: Graph Theory Cat Town RI/RJC NOI Selection Test 2016 Batch 1
trekking N/A Tags: Bitmask, Dynamic Programming, Graph Theory Jungle Trekking HCI NOI Selection Test 2017 Batch 10
builderswand N/A Tags: Dynamic Programming Builder’s Wand HCI NOI Selection Test 2017 Batch 2
mooshroomfarm N/A Tags: Data Structures Mooshroom Farm HCI NOI Selection Test 2017 Batch 1
redstonelamps N/A Tags: Explicitly Excluded (from IOI), Math Redstone Lamps HCI NOI Selection Test 2017 Batch 3
trianglecraft N/A Tags: Math Trianglecraft HCI NOI Selection Test 2017 Batch 3
hop N/A Tags: Math hop COCI 2020/2021 Contest #4 Problem 3 Batch 11
dinnerbox N/A Tags: Dynamic Programming, Greedy Jianzhi’s Dinner Box RI NOI Selection Test 2017 Batch 10
lost N/A Tags: Bitmask, Information Theory Jianzhi’s Lost RI NOI Selection Test 2017 Interactive 5
clipboard N/A Tags: Adhoc, Data Structures Jianzhi’s Clipboard Sorting RI NOI Selection Test 2017 Batch 9
mushroomfarm N/A Tags: Binary Search, Dynamic Programming Jianzhi’s Mushroom Farm RI NOI Selection Test 2017 Batch 33
spiraldance N/A Tags: Adhoc, Math Estelle’s Spiral Dance RI-HCI NOI Selection Test 2018 Batch 11
spotlights N/A Tags: Adhoc Estelle’s Concert Spotlights RI-HCI NOI Selection Test 2018 Batch 4
superfanclub N/A Tags: Graph Theory, Trees Estelle’s Super Fan Club RI-HCI NOI Selection Test 2018 Interactive 4
stagegames_part2 N/A Tags: Adhoc, Information Theory Estelle’s Stage Games (Subtasks 6 - 10) RI-HCI NOI Selection Test 2018 Interactive 2
stagegames_part1 N/A Tags: Adhoc, Information Theory Estelle’s Stage Games (Subtasks 1 - 5) RI-HCI NOI Selection Test 2018 Interactive 3
rookable N/A Tags: Graph Theory Rookable NUSH NOI Selection Test 2018 Batch 5
crab N/A Tags: Bitmask, Dynamic Programming Crab NUSH NOI Selection Test 2018 Batch 11
secret_mco N/A Tags: Adhoc, Explicitly Excluded (from IOI) Secret MCO 2015 Batch 3
penghulu N/A Tags: Dynamic Programming, Graph Theory, Trees Penghulu MCO 2016 Batch 20
chefmala N/A Tags: Data Structures chefmala CodeChef February Lunchtime 2022 (errorgorn) Batch 1
centroid N/A Tags: Brute Force, Graph Theory Centroid Dunjudge Archive Batch 20
forkintheroad N/A Tags: Dynamic Programming, Graph Theory, Math forkintheroad AtCoder Batch 2
shortest N/A Tags: Explicitly Excluded (from IOI), Math shortest Dunjudge Archive Batch 65
harvest N/A Tags: Data Structures Harvest JOI 2019/2020 Batch 3
cantor_ex N/A Tags: Binary Search, Information Theory cantor_ex Valentine's Day Contest 2022 (errorgorn) Interactive 2
cantor N/A Tags: Binary Search, Information Theory cantor TROC 24 (errorgorn) Interactive 3
killanton_ex N/A Tags: Bitmask, Dynamic Programming killanton_ex Valentine's Day Contest 2022 (errorgorn) Batch 2
kronecker N/A Tags: Math kronecker Valentine's Day Contest 2022 (errorgorn) Batch 1
lboard N/A Tags: Brute Force, Dynamic Programming L-Board NOI 2022 Qualification Batch 114
dragonfly N/A Tags: Data Structures, Graph Theory, Trees dragonfly NOI 2022 Qualification (bensonlzl) Batch 20
treecutting N/A Tags: Brute Force, Graph Theory, Trees Tree Cutting NOI 2022 Qualification Batch 59
usefft3 N/A Tags: Explicitly Excluded (from IOI), Math Use FFT 3 Valentine's Day Contest 2022 (errorgorn) Batch 1
iqtest N/A Tags: Math iqtest Valentine's Day Contest 2022 (errorgorn) Batch 73
usefft1 N/A Tags: Explicitly Excluded (from IOI), Math Use FFT 1 Classic Problem Batch 9
stoningame N/A Tags: Math stoningame Valentine's Day Contest 2022 (maomao90) Batch 15
permutationswap N/A Tags: Adhoc permutationswap Valentine's Day Contest 2022 (maomao90) Batch 8
usefft2 N/A Tags: Math Use FFT 2 Valentine's Day Contest 2022 (errorgorn) Batch 2
pandasoldiers N/A Tags: Adhoc, Data Structures Soldiers Dunjudge Archive Batch 12
rabbitgifts N/A Tags: Data Structures, Math rabbitgifts December Course 2018 Advanced Final Contest Batch 3
rabbitmeeting N/A Tags: Adhoc, Greedy RabbitMeeting December Course 2018 Advanced Final Contest Batch 27
taxes N/A Tags: Data Structures, Dynamic Programming, Square Root Decomposition taxes December Course 2018 Advanced Final Contest, ROI 2018 Day 1 Batch 8
couples N/A Tags: Dynamic Programming couples December Course 2018 Advanced Final Contest Batch 22
addsubtract N/A Tags: Dynamic Programming, Greedy addsubtract Dunjudge Archive Batch 4
deda N/A Tags: Binary Search, Data Structures deda COCI 2017/2018 Batch 34
snakecode N/A Tags: Dynamic Programming snakecode Dunjudge Archive Interactive 11
colour N/A Tags: Data Structures colour December Course 2018 Elementary Final Contest Batch 19
bunchlocks N/A Tags: Graph Theory bunchlocks Dunjudge Archive Batch 6
dateornot N/A Tags: Binary Search, Information Theory Date Or Not? Dunjudge Archive Interactive 5
thunderstorm N/A Tags: Data Structures, Greedy Thunderstorm Dec Trg 2019 (Elementary) Batch 13
multiple N/A Tags: Graph Theory multiple Dunjudge Archive Batch 9
globalwarming_ex N/A Tags: Data Structures, Graph Theory globalwarming_ex Dunjudge Archive Batch 10
climatechange N/A Tags: Binary Search, Data Structures, Dynamic Programming climatechange Dunjudge Archive Batch 10
notebook N/A Tags: Graph Theory notebook Dunjudge Archive Batch 12
ratar N/A Tags: Brute Force, Dynamic Programming ratar COCI 2013/2014 Batch 8
morepaths N/A Tags: Dynamic Programming morepaths Dunjudge Archive Batch 10
dquery N/A Tags: Data Structures, Square Root Decomposition dquery Classic Problem Batch 59
hipercijevi N/A Tags: Graph Theory hipercijevi COCI 2012/2013 Batch 17
math N/A Tags: Brute Force, Math Primes Up April Fools Contest 2020 (shenxy13) Batch 15
4cuts N/A Tags: Adhoc, Brute Force 4cuts Dunjudge Archive Batch 7
robot2 N/A Tags: Adhoc, Binary Search, Line Sweep/Sliding Window robot2 Dunjudge Archive Batch 11
joke N/A Tags: Graph Theory Joke Dec Trg 2019 (Elementary) Batch 13
nutritionist N/A Tags: Data Structures nutritionist Dunjudge Archive Batch 8
bore N/A Tags: Brute Force Boring Dunjudge Archive Batch 5
subwaytrip N/A Tags: Graph Theory subwaytrip Dunjudge Archive Batch 13
compact N/A Tags: Data Structures, Dynamic Programming compact Dunjudge Archive Batch 13
trianglesum N/A Tags: Brute Force, Dynamic Programming trianglesum NOI 2010 Selection Test Batch 6
mrbeancurd N/A Tags: Dynamic Programming mrbeancurd HCI Be A Problem Setter (BAPS) Contest 2017 (jzh, caffeine) Batch 16
walk N/A Tags: Graph Theory Sky Walking IOI 2019 Interactive 3
vision N/A Tags: Adhoc, Constructive Algorithms, Information Theory Vision Program IOI 2019 Interactive 6
rect N/A Tags: Brute Force, Data Structures Rectangle IOI 2019 (Day 1) Interactive 4
shoes N/A Tags: Data Structures, Greedy Arranging Shoes IOI 2019 (Day 1) Interactive 24
planning N/A Tags: Graph Theory, Greedy, Trees Company Planning TOKI Open 2014 Batch 21
prisoners N/A Tags: Adhoc, Graph Theory, Information Theory prisoners APIO 2014 Mock Contest Communication 13
inequality3 N/A Tags: Data Structures Social Inequality TOKI Open 2014 Batch 11
rolling N/A Tags: Dynamic Programming, Graph Theory, Trees Rolling Dunjudge Archive Batch 30
triusis N/A Tags: Data Structures, Dynamic Programming Rabbit Carrot Lithuanian Olympiad in Informatics 2019 Batch 26
secret N/A Tags: Divide and Conquer, Information Theory Secret JOI Open 2014 Interactive 18
grazing N/A Tags: Bitmask, Brute Force, Graph Theory grazing USACO Bronze Jan 2012 Batch 11
wallisstop N/A Tags: Binary Search, Data Structures, Graph Theory Wall Is Stop Dunjudge Archive (bensonlzl) Batch 8
youngmaids N/A Tags: Data Structures youngmaids Dunjudge Archive Batch 13
toy N/A Tags: Graph Theory, Trees toy ROI 2014 Batch 4
stations N/A Tags: Graph Theory, Information Theory, Trees Stations IOI 2020 (Day 2) Communication 13
3dhistogram N/A Tags: Data Structures, Divide and Conquer, Dynamic Programming 3D Histogram COCI 2020 Batch 6
outing N/A Tags: Data Structures Outing Educational Round 10 (Goodbye cstuart and kai824) (kai824) Batch 18
devil N/A Tags: Constructive Algorithms, Graph Theory The Devil's Algorithm Hello 2022 (errorgorn) Batch 5
prefixsums2 N/A Tags: Math Prefix Sums 2 Educational Round 10 (Goodbye cstuart and kai824) (errorgorn) Batch 6
qualitycontrol N/A Tags: Graph Theory, Trees Quality Control Educational Round 10 (Goodbye cstuart and kai824) (cstuart) Batch 9
inequality2 N/A Tags: Adhoc, Constructive Algorithms inequality2 Dec Course 2021 BAPS (zaneyu) Batch 15
prefixgcd N/A Tags: Adhoc, Brute Force, Math prefixgcd Dec Course 2021 BAPS (jiahng) Batch 25
eexploration N/A Tags: Graph Theory Elementary Exploration Dec Course 2021 Elementary Final Contest (shenxy13) Batch 33
eeducation N/A Tags: Syntax Elementary Education Dec Course 2021 Elementary Final Contest (shenxy13) Batch 245
eevacuation N/A Tags: Dynamic Programming, Graph Theory Elementary Evacuation Dec Course 2021 Elementary Final Contest (shenxy13) Batch 93
eescapism N/A Tags: Adhoc, Math Elementary Escapism Dec Course 2021 Elementary Final Contest (shenxy13) Batch 135
eelimination N/A Tags: Data Structures Elementary Elimination Dec Course 2021 Elementary Final Contest (shenxy13) Batch 154
dice N/A Tags: Math Dice Dec Course 2021 BAPS (origami100, dillion) Batch 29
openingshop N/A Tags: Greedy Opening Shop Dec Course 2021 BAPS (Halogen) Batch 23
gerrymandering N/A Tags: Dynamic Programming Gerrymandering Dec Course 2021 BAPS (beepbeepsheep) Batch 23
bitaro N/A Tags: Dynamic Programming, Graph Theory, Square Root Decomposition Bitaro's Party JOI 2017/2018 Spring Camp Batch 10
triangles N/A Tags: Graph Theory, Square Root Decomposition Counting Triangles Classic Problem Batch 25
more_lca2 N/A Tags: Graph Theory, Trees More LCA 2 Educational Round 10 (Goodbye cstuart and kai824) (cstuart) Interactive 15
selfpermutation N/A Tags: Data Structures, Divide and Conquer, Dynamic Programming selfpermutation TOKI KSN Day 2 Batch 16
linearbasis N/A Tags: Explicitly Excluded (from IOI), Math linearbasis Hello 2022 (errorgorn) Batch 3
frog3 N/A Tags: Dynamic Programming Frog 3 Atcoder Educational DP Contest Batch 58
rabbitbars N/A Tags: Binary Search, Data Structures, Divide and Conquer, Dynamic Programming rabbitbars Dunjudge Archive (bensonlzl) Batch 25
queuestack N/A Tags: Adhoc, Data Structures Queuestack Educational Round 10 (Goodbye cstuart and kai824) (lida, oolimry, cstuart) Batch 8
addition2 N/A Tags: Joke Addition? Hello 2022 (oolimry) Batch 404
helloworld2 N/A Tags: Joke Hello World? Hello 2022 (jamessng) Batch 214
fiboregisters N/A Tags: Adhoc, Constructive Algorithms, Math IOI Registers: but epic TROC 24 (errorgorn) Batch 2
shopping N/A Tags: Dynamic Programming Shopping Dunjudge Archive Batch 11
pawns N/A Tags: Adhoc, Explicitly Excluded (from IOI), Math e4e5 Ke2? Ke7? TROC 24 (maomao90, errorgorn) Batch 3
ninjashard N/A Tags: Data Structures Ninjas (Hard) TROC 24 (oolimry, errorgorn) Batch 2
ninjaseasy N/A Tags: Data Structures Ninjas (Easy) TROC 24 (oolimry) Batch 2
ktupleflip N/A Tags: Adhoc, Greedy K-tuple Flip TROC 24 (errorgorn) Batch 9
doubleflip N/A Tags: Adhoc Double Flip TROC 24 (errorgorn) Batch 30
singleflip N/A Tags: Syntax Single Flip TROC 24 (maomao90) Batch 67
newlottery N/A Tags: Dynamic Programming New Lottery Google Code Jam 2014 Batch 6
domine N/A Tags: Bitmask, Dynamic Programming domine COCI 2013/2014 Batch 17
boxoffice N/A Tags: Brute Force, Data Structures Box Office Dunjudge Archive Batch 3
more_lca N/A Tags: Dynamic Programming, Graph Theory, Trees More LCA Educational Round 10 (Goodbye cstuart and kai824) (cstuart) Interactive 21
weightedguess N/A Tags: Dynamic Programming Weighted Guess Educational Round 10 (Goodbye cstuart and kai824) (cstuart) Interactive 16
power N/A Tags: Dynamic Programming, Graph Theory, Trees power JOI Batch 22
mergers N/A Tags: Adhoc, Data Structures, Graph Theory, Trees mergers JOI Batch 16
wandering N/A Tags: Data Structures, Graph Theory, Trees wandering AGC 029 Batch 9
hoofpaperscissor N/A Tags: Dynamic Programming Hoof, Paper, Scissors USACO 2017 January Contest, Gold Batch 53
grid N/A Tags: Dynamic Programming Grid Atcoder Educational DP Contest Batch 130
pythonindentation N/A Tags: Dynamic Programming pythonindentation Codeforces 909C Batch 38
straight N/A Tags: Bitmask, Dynamic Programming Pure Straight ARC 126 Batch 13
digitsum N/A Tags: Dynamic Programming digitsum UOJ Easy Round #4 Batch 12
peddler N/A Tags: Dynamic Programming, Graph Theory Peddler ABC 188 Batch 66
bank N/A Tags: Bitmask, Dynamic Programming Bank IZhO 2014 Day 1 Batch 43
01knapsack N/A Tags: Dynamic Programming 0-1 Knapsack Classic problem (Atcoder Educational DP Contest) Batch 240
voting N/A Tags: Data Structures, Greedy Voting Dunjudge Archive Batch 12
leave N/A Tags: Data Structures leave Dunjudge Archive Batch 94
guessqueue N/A Tags: Brute Force, Data Structures Guess the Queue Kattis (modified) (ryangohca) Batch 82
woodcutter N/A Tags: Brute Force, Data Structures Woodcutter Codeforces 527C (modified) Interactive 34
sandwich N/A Tags: Divide and Conquer Sandwich HCI-NUSH NOI Selection 2022 (errorgorn, oolimry, yanhao) Batch 6
battleship N/A Tags: Bitmask, Constructive Algorithms, Divide and Conquer Battleship HCI-NUSH NOI Selection 2022 (errorgorn) Interactive 20
jumper N/A Tags: Brute Force, Data Structures, Line Sweep/Sliding Window Manhattan Jumper HCI-NUSH NOI Selection 2022 (errorgorn) Batch 20
boundedpermutation N/A Tags: Adhoc, Dynamic Programming, Math Bounded Permutation HCI-NUSH NOI Selection 2022 (maomao90) Batch 61
flappyrabbit N/A Tags: Greedy Flappy Rabbit HCI-NUSH NOI Selection 2022 (pavement) Interactive 82
727 N/A Tags: Greedy, Math 727 HCI-NUSH NOI Selection 2022 (errorgorn) Batch 97
uniquepath N/A Tags: Graph Theory uniquepath AGC38D Batch 14
spy N/A Tags: Data Structures, Graph Theory, Trees spy 2013 IOI Japan National Team Selection Test Day 2 Batch 24
redblue N/A Tags: Constructive Algorithms, Graph Theory, Trees redblue Dunjudge Archive Batch 1
bosses N/A Tags: Brute Force, Graph Theory, Greedy, Trees bosses BOI 2016 Batch 61
roots N/A Tags: Data Structures, Graph Theory, Trees roots Codeforces 695E Batch 19
typicalstairs N/A Tags: Dynamic Programming Typical Stairs ABC 129 Batch 174
vainish N/A Tags: Dynamic Programming Vanish 2015-2016 NOI Training Diagnostic Test Batch 78
postcard N/A Tags: Dynamic Programming postcard Codeforces 4D Batch 40
duckwalk N/A Tags: Binary Search, Data Structures, Dynamic Programming duckwalk Codeforces 76F Batch 16
selfdefence N/A Tags: Dynamic Programming Self Defence TOKI KSN Day 1 Batch 13
deque N/A Tags: Dynamic Programming Deque AtCoder Educational DP Contest Batch 90
partitiongame N/A Tags: Data Structures, Dynamic Programming Partition Game Codeforces 1527E Batch 30
stringsofimpurity N/A Tags: Binary Search stringsofimpurity AtCoder Batch 34
logs N/A Tags: Binary Search logs AtCoder Batch 84
snukethewizard N/A Tags: Adhoc, Binary Search snukethewizard AtCoder Batch 14
library N/A Tags: Binary Search, Information Theory Library JOI 2018/2019 Spring Camp Day 4 Interactive 1
potatoqueue N/A Tags: Data Structures potatoqueue Dunjudge Archive Interactive 21
minstack N/A Tags: Data Structures minstack Dunjudge Archive Interactive 130
knapsack2 N/A Tags: Dynamic Programming knapsack2 David Pisinger (1995) Batch 3
wiring N/A Tags: Adhoc, Greedy Fix Wiring Polish Collegiate Programming Contest 2021 Batch 9
stickytape N/A Tags: Greedy Sticky Tape Classic Problem Batch 84
cp2booksales N/A Tags: Line Sweep/Sliding Window cp2booksales Dunjudge Archive Batch 19
sale N/A Tags: Data Structures, Greedy sale Dunjudge Archive Batch 10
brackets N/A Tags: Greedy, Slope Trick Bracket Subsequence Classic Problem (zengminghao) Batch 46
travel N/A Tags: Greedy Travel CCO 2015 Batch 65
relutree N/A Tags: Data Structures relutree Classic Problem (errorgorn) Batch 8
hacking N/A Tags: Graph Theory Hacking Classic problem (fyss006) Batch 75
hamster1 N/A Tags: Dynamic Programming Hamster's Journey Atcoder Educational DP Contest Batch 162
fractions N/A Tags: Syntax fractions Classic Problem (YeoBL20) Batch 170
medianstring N/A Tags: Syntax medianstring Dunjudge Archive Batch 408
descsort N/A Tags: Syntax descsort Dunjudge Archive Batch 458
xortree N/A Tags: Data Structures xortree Classic Problem (errorgorn) Batch 14
fibotree N/A Tags: Data Structures, Explicitly Excluded (from IOI), Math fibotree Bubble Cup 14 (modified) Batch 7
stackweights N/A Tags: Data Structures stackweights CSES Problem Set Batch 38
synchronization N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees Synchronization JOI Open Contest 2013 Batch 4
rectangleoutline N/A Tags: Dynamic Programming, Line Sweep/Sliding Window Rectangle Outline USACO 2016 January Contest, Platinum Batch 56
picnic N/A Tags: Binary Search, Greedy Picnic Codeforces Global Round 17 Batch 81
management N/A Tags: Syntax Management ABC163C Batch 283
gotoschool N/A Tags: Syntax Go To School ABC142 Batch 476
typo N/A Tags: Syntax Typo ABC221 Batch 383
workload_ex N/A Tags: Explicitly Excluded (from IOI), Math workload_ex Classic Problem in China (Probably) (errorgorn) Batch 4
gravity N/A Tags: Graph Theory gravity USACO 2013 US Open, SIlver Batch 8
eatcake N/A Tags: Divide and Conquer Eating Cake Educational Codeforces Round 94 Batch 63
workload2 N/A Tags: Square Root Decomposition Workload 2 Dec Course 2021 Intermediate Contest 4 (Data Structures III) (errorgorn) Batch 8
christmaxtrees N/A Tags: Graph Theory, Greedy christmaxtrees Codeforces 1283D Batch 38
distribution N/A Tags: Bitmask, Constructive Algorithms, Meet in the Middle Distribution Codechef January Cook-Off 2021 Batch 16
segmenttree3 N/A Tags: Data Structures, Line Sweep/Sliding Window segmenttree3 Dec Course 2021 Intermediate Contest 4 (Data Structures III) (errorgorn, oolimry) Batch 14
problematicjourney N/A Tags: Binary Search, Graph Theory Problematic Journey Classic Problem Batch 100
zooqueue N/A Tags: Data Structures Zoo Queue NUS December Training 2021 Diagnostic Test (shenxy13) Batch 109
workload N/A Tags: Dynamic Programming December Training Workload Classic Problem Batch 108
fizzbuzz N/A Tags: Math, Syntax FizzBuzz Classic Problem Batch 936
aircon N/A Tags: Data Structures aircon Codeforces Round #757 (Div. 2) Batch 48
cups N/A Tags: Data Structures cups Deccourse 2021 DS II Contest (errorgorn) Batch 170
lambsrespite N/A Tags: Data Structures Lamb's Respite XXII Open Cup. Grand Prix of Korea Batch 16
digits N/A Tags: Data Structures digits Deccourse 2021 DS II Contest (errorgorn) Batch 81
wall N/A Tags: Data Structures wall IOI 2014 Interactive 22
rabbitpainting N/A Tags: Greedy rabbitpainting Dunjudge Archive (bensonlzl) Batch 35
vouchers N/A Tags: Dynamic Programming vouchers Dunjudge Archive Batch 26
lps N/A Tags: Dynamic Programming lps Dunjudge Archive Batch 67
entropy2 N/A Tags: Adhoc, Brute Force entropy2 RI December Course Selection Test 2021 (kym) Batch 71
feedthewallabies N/A Tags: Graph Theory Feed the Wallabies RI December Course Selection Test 2021 (syy) Batch 42
clocktower N/A Tags: Math, Syntax Clock Tower RI December Course Selection Test 2021 (Deadeye) Batch 200
pillars N/A Tags: Data Structures Pillars RI December Course Selection Test 2021 (rs) Batch 24
wallabyhop N/A Tags: Data Structures, Line Sweep/Sliding Window Wallaby Hop RI December Course Selection Test 2021 (jiahng) Batch 38
summarizing2021 N/A Tags: Explicitly Excluded (from IOI) 🗿🗿🗿 Hello 2022 (errorgorn) Interactive 19
wabbitosu N/A Tags: Adhoc, Data Structures, Greedy Wabbit osu!taiko HCI December Course Selection 2021 (bensonlzl) Batch 21
minimetro N/A Tags: Data Structures, Dynamic Programming, Line Sweep/Sliding Window Minimetro HCI December Course Selection 2021 (huangqr) Batch 17
drones N/A Tags: Graph Theory Drones HCI December Course Selection 2021 (cstuart) Batch 69
pavement N/A Tags: Constructive Algorithms, Greedy Painting Pavements HCI December Course Selection 2021 (pavement) Batch 29
swapsort N/A Tags: Adhoc Swap Sort HCI December Course Selection 2021 (kai824, pavement) Batch 212
reciprocals N/A Tags: Constructive Algorithms, Syntax Reciprocals HCI December Course Selection 2021 (huangqr, pavement) Batch 183
ladybugs N/A Tags: Dynamic Programming ladybugs Dunjudge Archive Batch 64
letters N/A Tags: Dynamic Programming letters Dunjudge Archive Batch 102
lol N/A Tags: Dynamic Programming lol Dunjudge Archive Batch 124
exoticplants N/A Tags: Graph Theory Exotic Plants Luogu P4568 [JLOI2011] Batch 31
razlika N/A Tags: Data Structures, Line Sweep/Sliding Window razlika COCI 2013 Batch 150
prefixsums N/A Tags: Dynamic Programming, Syntax prefixsums Classic Problem (YeoBL20) Batch 486
equals N/A Tags: Graph Theory equals ARC 097 Batch 30
kthsubstring N/A Tags: Adhoc kthsubstring ARC 097 Batch 48
dominoes N/A Tags: Binary Search, Data Structures, Square Root Decomposition dominoes Educational Round 9 (maomao90, zaneyu) Batch 8
coins N/A Tags: Information Theory Coins IOI 2017 Practice Communication 7
binomial N/A Tags: Math binomial Dunjudge Archive Batch 29
boxes_hkicpc N/A Tags: Graph Theory, Trees Boxes 2016 ACM ICPC Asia Hong Kong Regional Batch 38
hunter N/A Tags: Graph Theory, Trees Hunter Dunjudge Archive (bensonlzl) Interactive 28
closedrooms N/A Tags: Adhoc, Graph Theory closedrooms AtCoder Grand Contest 014 Batch 54
gridgame N/A Tags: Graph Theory gridgame Dunjudge Archive Batch 53
fireandbeary N/A Tags: Graph Theory fireandbeary Dunjudge Archive (jamielim) Batch 82
workoutplan N/A Tags: Greedy Workout plan Bubble Cup 12 Div 1 Batch 100
primesort N/A Tags: Graph Theory, Math Prime Sort Dunjudge Archive Batch 52
spiderweb N/A Tags: Dynamic Programming, Graph Theory spiderweb Dunjudge Archive Batch 13
cookieclickeralpha N/A Tags: Math, Syntax cookieclickeralpha Google Code Jam 2014 Batch 75
boring N/A Tags: Dynamic Programming boring Dunjudge Archive Batch 25
area N/A Tags: Syntax area Dunjudge Archive Batch 370
solonim N/A Tags: Explicitly Excluded (from IOI), Math, Syntax Solo Nim Dunjudge Archive Batch 157
sardines N/A Tags: Data Structures, Dynamic Programming sardines RI NOI Selection Test 2014 Batch 18
deliveroo N/A Tags: Data Structures, Greedy Deliveroo RI November Course Stage 2 Selection Test 2021 (Deadeye) Batch 37
levelingup N/A Tags: Dynamic Programming Leveling Up RI November Course Stage 2 Selection Test 2021 (ryangohca) Batch 73
greenbeans N/A Tags: Adhoc, Math, Syntax Green Beans Mayhem RI November Course Stage 2 Selection Test 2021 (ryangohca, kym) Batch 69
coinjourney N/A Tags: Binary Search Coin Journey RI November Course Stage 2 Selection Test 2021 (kym) Batch 97
timeexam N/A Tags: Math, Syntax What's the Time? RI November Course Stage 2 Selection Test 2021 (ryangohca) Batch 621
duels N/A Tags: Adhoc, Data Structures duels Educational Round 9 (maomao90, jamessng) Batch 16
orangeroad N/A Tags: Data Structures, Line Sweep/Sliding Window orangeroad Educational Round 9 (jamessng, jamielim) Batch 17
portals N/A Tags: Data Structures, Graph Theory portals USACO 2021 US Open, Gold Batch 13
holeetree N/A Tags: Explicitly Excluded (from IOI) \( H^{o^{L^{e^e_e}_{e^e_e}}_{L^{e^e_e}_{ e^e_e}}}_{o^{L^{e^e_e}_{ e^e_e}}_{L^{e^e_e}_{e^e_e}}} \) 🎄 Hello 2022 (errorgorn) Batch 7
spellofweakness N/A Tags: Binary Search, Greedy, Line Sweep/Sliding Window Spell Of Weakness Dunjudge Archive (dantoh) Batch 104
bananasmoothie N/A Tags: Greedy Banana Smoothie Dunjudge Archive (shenxy13) Batch 223
adjacentswaps N/A Tags: Brute Force, Greedy Adjacent Swaps Dunjudge Archive (shenxy13) Batch 45
jedan N/A Tags: Dynamic Programming jedan COCI 2012/2013 Batch 4
stones N/A Tags: Graph Theory, Trees stones Dunjudge Archive Batch 67
hyperoperations N/A Tags: Math hyperoperations Dunjudge Archive Batch 3
pigeons N/A Tags: Brute Force pigeons Classic Problem Batch 385
diamond N/A Tags: Syntax diamond Classic Problem Batch 467
psle N/A Tags: Syntax Old PSLE Grading System Classic Problem Batch 1046
3nplus1II N/A Tags: Syntax 3nplus1II Classic Problem Batch 486
3nplus1 N/A Tags: Syntax 3nplus1 Classic Problem Batch 1138
rightangtri N/A Tags: Syntax rightangtri Classic Problem Batch 876
evenorodd N/A Tags: Syntax evenorodd Classic Problem Batch 1051
boxhaskey N/A Tags: Graph Theory Box Has Key HCI-RI 2020 May Contest (bensonlzl) Batch 25
rainbowroad N/A Tags: Bitmask, Dynamic Programming, Graph Theory, Trees Rainbow Road HCI-RI 2020 May Contest (bensonlzl) Batch 21
pressstart N/A Tags: Data Structures, Graph Theory Press Start! HCI-RI 2020 May Contest (bensonlzl) Batch 12
bracketsyndrome N/A Tags: Adhoc, Data Structures Bracket Syndrome RI-HCI NOI Selection Test 2019 Batch 142
destroy N/A Tags: Dynamic Programming, Graph Theory, Trees Destroy RI-HCI NOI Selection Test 2019 Batch 16
wires N/A Tags: Adhoc Wires RI-HCI NOI Selection Test 2019 (bensonlzl) Interactive 45
usefft4 N/A Tags: Explicitly Excluded (from IOI), Math Use FFT 4 Valentine's Day Contest 2022 (errorgorn) Batch 2
consistency N/A Tags: Data Structures Consistency RI-HCI NOI Selection Test 2019 (bensonlzl) Batch 2
rainbowrabbit N/A Tags: Adhoc, Greedy rainbowrabbit RI-HCI December Course Selection 2019 (bensonlzl) Batch 47
rabbitroad N/A Tags: Binary Search, Graph Theory, Greedy, Trees RabbitRoad RI-HCI December Course Selection 2019 (bensonlzl) Batch 21
badtree N/A Tags: Binary Search, Data Structures badtree RI-HCI December Course Selection 2019 (bensonlzl) Batch 20
orangecollector N/A Tags: Bitmask, Data Structures, Dynamic Programming Orange Collector RI-HCI December Course Selection 2019 (rs) Batch 20
escalation N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees escalation December Course 2019 Advanced Final Contest (bensonlzl) Batch 19
circleselection N/A Tags: Data Structures, Math Circle selection APIO 2018 Batch 6
duathlon N/A Tags: Graph Theory, Trees Duathlon APIO 2018 Batch 10
f7 N/A Tags: Greedy F7 COCI 2012/2013 Batch 121
forensic N/A Tags: Brute Force, Graph Theory forensic NOI 2012 Batch 6
modsum N/A Tags: Dynamic Programming, Math modsum NOI 2012 Batch 59
diesel N/A Tags: Dynamic Programming, Graph Theory diesel NOI 2013 Batch 6
obelisk N/A Tags: Graph Theory obelisk NOI 2014 Batch 2
cats N/A Tags: Adhoc cats NOI 2014 Batch 6
island N/A Tags: Graph Theory, Math, Trees Island NOI 2018 Prelims Batch 20
snail N/A Tags: Adhoc, Syntax Snail NOI 2018 Prelims Batch 47
robot N/A Tags: Data Structures Robots Educational Round 8 (Goodbye oolimry) (oolimry) Batch 12
badnim3 N/A Tags: Bitmask, Explicitly Excluded (from IOI), Math Bad Nim 3 (EE) Educational Round 8 (Goodbye oolimry) (errorgorn) Batch 5
monke N/A Tags: Math Monke Educational Round 8 (Goodbye oolimry) (errorgorn) Batch 6
badnim2 N/A Tags: Explicitly Excluded (from IOI), Math Bad Nim 2 (EE) Educational Round 8 (Goodbye oolimry) (errorgorn) Batch 4
mamamintaplusa N/A Tags: Greedy mama MINta PLUSa Educational Round 8 (Goodbye oolimry) (errorgorn) Batch 22
coolinteractive N/A Tags: Adhoc Cool Interactive Educational Round 8 (Goodbye oolimry) (errorgorn) Interactive 11
epicinteractive N/A Tags: Adhoc, Information Theory, Math Epic Interactive Educational Round 8 (Goodbye oolimry) (errorgorn, oolimry) Interactive 3
suffixarray N/A Tags: Explicitly Excluded (from IOI), Math Oolimry and Suffix Array Codeforces Round 723 (zaneyu) Batch 4
killanton N/A Tags: Brute Force, Greedy Kill Anton Codeforces Round 723 (errorgorn) Batch 7
potionshard N/A Tags: Greedy Potions (Hard Version) Codeforces Round 723 (errorgorn, oolimry) Batch 39
potionseasy N/A Tags: Dynamic Programming, Greedy Potions (Easy Version) Codeforces Round 723 (errorgorn, oolimry) Batch 39
ihate1111 N/A Tags: Adhoc, Math I Hate 1111 Codeforces Round 723 (errorgorn) Batch 164
switchandflip N/A Tags: Constructive Algorithms, Graph Theory, Math Switch and Flip Codeforces Global Round 13 (errorgorn, oolimry) Batch 1
infinitezoo N/A Tags: Bitmask, Graph Theory, Greedy, Math Zookeeper and The Infinite Zoo Codeforces Global Round 13 (errorgorn) Batch 11
ruler N/A Tags: Brute Force, Data Structures Ruler Of The Zoo Educational Round 8 (Goodbye oolimry) (oolimry) Batch 3
pekora N/A Tags: Greedy Pekora and Trampoline Educational Round 8 (Goodbye oolimry) (oolimry) Batch 14
palindromicfizzbuzz N/A Tags: Syntax Palindromic FizzBuzz NOI 2019 Prelims (pwypeanut) Batch 242
lostarray N/A Tags: Adhoc, Constructive Algorithms Lost Array NOI 2019 Prelims Batch 133
squarerect N/A Tags: Adhoc, Binary Search, Information Theory Square or Rectangle? NOI 2019 Prelims (pwypeanut) Interactive 21
virus N/A Tags: Adhoc, Graph Theory, Line Sweep/Sliding Window virus JOISC 2017, Day 1 Batch 1
mirrortree N/A Tags: Graph Theory, Trees mirrortree BOI 2011, Day 2 Batch 3
airline N/A Tags: Graph Theory, Information Theory airline JOISC 2018, Day 3 Communication 10
dungeons2 N/A Tags: Binary Search, Data Structures dungeons2 AGM 2021, Final Round, Day 2 Batch 5
sillysort N/A Tags: Math sillysort info(1) cup 2019 (modified) (errorgorn) Batch 6
trivialmaths2 N/A Tags: Explicitly Excluded (from IOI), Math trivialmaths2 (EE) Educational Round 7 (errorgorn) Batch 5
oridance N/A Tags: Dynamic Programming Orientation Dance Codeforces 1509C Batch 83
addone N/A Tags: Dynamic Programming Add One Codeforces 1513C Batch 37
switches N/A Tags: Explicitly Excluded (from IOI), Math switches Educational Round 7 (myrcella, errorgorn) Batch 4
bosubaiko N/A Tags: Adhoc, Greedy Bosu Baiko Educational Round 6 (errorgorn) Batch 32
robobear N/A Tags: Graph Theory The Maze of RoboBear Tuymaada 2021 Batch 20
findandprevent N/A Tags: Graph Theory, Trees Find and Prevent Tuymaada 2021 Batch 23
judgeantibreaker N/A Tags: Binary Search, Square Root Decomposition judgeantibreaker Educational Round 6 (oolimry) Batch 8
fourbuckets N/A Tags: Adhoc, Math Four Buckets Educational Round 6 (oolimry) Batch 30
persistentlists N/A Tags: Binary Search, Data Structures, Square Root Decomposition Persistent Lists Educational Round 6 (oolimry) Batch 5
hellokitty N/A Tags: Binary Search, Data Structures, Math hellokitty Dunjudge Archive Batch 30
cudak N/A Tags: Binary Search, Dynamic Programming cudak COCI 2007/2008 Batch 36
routes N/A Tags: Adhoc, Graph Theory routes Dunjudge Archive Batch 18
quality N/A Tags: Binary Search, Dynamic Programming Quality of Living IOI 2010 Interactive 7
flooding N/A Tags: Graph Theory flooding Dunjudge Archive Batch 9
burger N/A Tags: Greedy burger Code Jam to I/O 2018 for Women Batch 23
toblerone N/A Tags: Brute Force, Dynamic Programming, Greedy toblerone HCI Mock NOI 2015 Batch 15
twomeals N/A Tags: Brute Force, Dynamic Programming, Greedy twomeals Dunjudge Archive Batch 152
badnim N/A Tags: Explicitly Excluded (from IOI), Math badnim Educational Round 7 (errorgorn) Batch 46
pancake N/A Tags: Brute Force, Graph Theory pancake NOI 2012 Batch 30
switches2 N/A Tags: Dynamic Programming, Math switches2 Educational Round 7 (errorgorn) Batch 8
switches998244353 N/A Tags: Explicitly Excluded (from IOI), Math switches998244353 (EE) Educational Round 7 (errorgorn) Batch 4
cashmoney N/A Tags: Math Cash Money 2020 CNY Batch 12
parade N/A Tags: Dynamic Programming, Graph Theory, Trees parade Dunjudge Archive Batch 54
productcounting N/A Tags: Divide and Conquer, Square Root Decomposition Product Counting Educational Round 5 (errorgorn) Batch 5
lottery N/A Tags: Adhoc Lottery CEOI 2018 Batch 5
cloudcomputing N/A Tags: Dynamic Programming Cloud computing CEOI 2018 Batch 18
mandarins N/A Tags: Math Mandarins 2020 CNY Batch 70
friendcross N/A Tags: Data Structures friendcross USACO 2017 Feb Plat Batch 3
supplies N/A Tags: Graph Theory supplies Dunjudge Archive Batch 91
knightmoves N/A Tags: Graph Theory knightmoves Dunjudge Archive Batch 143
mining N/A Tags: Graph Theory mining Dunjudge Archive Batch 31
erp N/A Tags: Graph Theory erp Dunjudge Archive Batch 79
heatwv N/A Tags: Graph Theory Heat Wave Dunjudge Archive Batch 126
party N/A Tags: Data Structures, Graph Theory party Dunjudge Archive Batch 212
marathon_usaco N/A Tags: Data Structures Marathon USACO 2014 Dec, Gold Batch 5
schedule N/A Tags: Dynamic Programming, Graph Theory schedule HCI NOI Selection Test 2014 Batch 15
streets N/A Tags: Data Structures, Graph Theory, Trees One-Way Streets CEOI 2017 Batch 14
friend N/A Tags: Adhoc friend IOI 2014 Interactive 8
tournament N/A Tags: Graph Theory, Trees tournament IOI 2012 Interactive 9
registers N/A Tags: Bitmask, Constructive Algorithms Bit Shift Registers IOI 2021 Interactive 2
dungeons N/A Tags: Graph Theory Dungeons Game IOI 2021 Interactive 2
dna_ioi N/A Tags: Adhoc Mutating DNA IOI 2021 Interactive 59
candies_ioi N/A Tags: Data Structures Distributing Candies IOI 2021 Interactive 6
parks N/A Tags: Adhoc, Constructive Algorithms, Graph Theory Fountain Parks IOI 2021 Interactive 3
keys N/A Tags: Graph Theory, Trees Keys IOI 2021 Interactive 5
graphoverflow N/A Tags: Graph Theory, Math graphoverflow RI Deccourse 2018 Selection Test (jerryhanjt) Batch 10
divsum_dec18 N/A Tags: Math Divsum RI Deccourse 2018 Selection Test (eutroph) Batch 18
askonegetonefree N/A Tags: Binary Search, Dynamic Programming AskOneGetOneFree NOI 2015 Interactive 15
elephants N/A Tags: Binary Search, Square Root Decomposition Elephants IOI 2011 Interactive 8
newhome N/A Tags: Divide and Conquer, Slope Trick New Home APIO 2018 Batch 6
bridge_cerc N/A Tags: Graph Theory, Square Root Decomposition Bridge CERC 2018 Batch 4
ponteng N/A Tags: Math, Square Root Decomposition Ponteng 2019 IOI Problem Setter Contest Batch 14
mobitel N/A Tags: Dynamic Programming, Square Root Decomposition Mobitel COCI 2018/2019 Batch 12
historical N/A Tags: Square Root Decomposition Historical JOI 2013/2014 Batch 29
mathtree N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees Math Tree SGP Sparring 2021 (lovemathboy) Batch 27
seedflare N/A Tags: Information Theory Seed Flare SGP Sparring 2021 (lovemathboy) Interactive 14
seabreakpath N/A Tags: Data Structures Seabreak Path SGP Sparring 2021 (lovemathboy) Batch 2
sonya N/A Tags: Dynamic Programming, Slope Trick Sonya and Problem Wihtout A Legend Codeforces 713C Batch 29
minimum N/A Tags: Syntax minimum Classic Problem Interactive 646
indivisibility N/A Tags: Math indivisibility Dunjudge Archive Batch 41
thanossort_st4 N/A Tags: Adhoc, Divide and Conquer, Explicitly Excluded (from IOI) thanossort_st4 RSA Fun Contest (errorgorn) Interactive 9
thanossort N/A Tags: Adhoc, Divide and Conquer thanossort RSA Fun Contest (errorgorn) Interactive 11
fireworks N/A Tags: Dynamic Programming, Graph Theory, Slope Trick, Trees Fireworks APIO 2016 Batch 17
warp N/A Tags: Bitmask, Dynamic Programming warp HCI NOI Selection Retest 2020 (bensonlzl) Batch 52
skyline N/A Tags: Graph Theory, Greedy skyline HCI NOI Selection Retest 2020 (bensonlzl) Batch 51
colourblind N/A Tags: Graph Theory colourblind HCI NOI Selection Retest 2020 (bensonlzl) Interactive 17
meetings N/A Tags: Data Structures, Divide and Conquer Meetings IOI 2018 Interactive 4
doll N/A Tags: Adhoc, Constructive Algorithms Mechanical Doll IOI 2018 Interactive 8
highway N/A Tags: Binary Search, Information Theory Highway Tolls IOI 2018 Interactive 3
race N/A Tags: Divide and Conquer, Trees Race IOI 2011 Interactive 44
mushrooms N/A Tags: Constructive Algorithms, Information Theory Counting Mushrooms IOI 2020 (Day 2) Interactive 3
promotion N/A Tags: Data Structures, Graph Theory, Trees Promotion Counting USACO 2017 Jan, Platinum Batch 41
rabbitbridges N/A Tags: Binary Search, Graph Theory Rabbit Bridges Educational Round 5 (oolimry) Batch 16
powersupply N/A Tags: Adhoc, Data Structures, Line Sweep/Sliding Window, Math Power Supply Educational Round 5 (cstuart) Batch 3
lfs N/A Tags: Dynamic Programming, Math Longest Factor Subsequence Educational Round 5 (errorgorn) Batch 44
funfair N/A Tags: Dynamic Programming, Graph Theory, Trees Funfair Educational Round 5 (rs) Batch 26
supertrees N/A Tags: Adhoc, Constructive Algorithms, Graph Theory Connecting Supertrees IOI 2020 Interactive 16
plants N/A Tags: Binary Search, Data Structures Comparing Plants IOI 2020 Interactive 3
midas N/A Tags: Graph Theory, Trees Midas POI 2017 Round 3 Day 1 Q1 Batch 16
molecules N/A Tags: Adhoc, Line Sweep/Sliding Window Detecting Molecules IOI 2016 Interactive 22
flood N/A Tags: Graph Theory, Math Flood POI 2018 Round 1 Q3 Batch 10
container N/A Tags: Square Root Decomposition Shipping Containers POI 2017 Round 2 Day 2 Q1 Batch 35
threetowers N/A Tags: Brute Force, Greedy threetowers POI 2015 Round 2 Day 2 Q2 Batch 16
wombats N/A Tags: Data Structures wombats IOI 2013 Interactive 3
dreaming N/A Tags: Graph Theory dreaming IOI 2013 Interactive 21
animaleditor N/A Tags: Data Structures animaleditor MCO Batch 12
cave N/A Tags: Binary Search cave IOI 2013 Interactive 31
leastround N/A Tags: Dynamic Programming leastround Codeforces 2B Batch 8
garden_ioi05 N/A Tags: Brute Force, Dynamic Programming Garden IOI 2005 Batch 16
garden_ioi08 N/A Tags: Dynamic Programming Linear Garden IOI 2008 Batch 14
umbrella N/A Tags: Dynamic Programming umbrella USACO Silver Dec 2011 Batch 26
robots N/A Tags: Binary Search, Greedy robots IOI 2013 Interactive 25
fruits N/A Tags: Data Structures, Greedy fruits Dunjudge Archive Batch 36
tourist N/A Tags: Data Structures, Greedy tourist IOI 2012 Practice Tasks Batch 65
convexhull N/A Tags: Data Structures Convex Hull Classic Problem (ryangohca) Batch 66
roads N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees Road Closures APIO 2021 Interactive 10
collectingstamps3 N/A Tags: Dynamic Programming collectingstamps3 JOI 2020 Final Round Batch 5
jjooii2 N/A Tags: Adhoc, Binary Search, Line Sweep/Sliding Window jjooii2 JOI 2020 Final Round Batch 19
infiniteseq N/A Tags: Dynamic Programming infiniteseq AtCoder Regular Contest 071 Batch 4
tents N/A Tags: Dynamic Programming Tents JOI 2017/2018 Spring Camp Batch 4
changingcolours N/A Tags: Data Structures, Dynamic Programming changingcolours RI Problem Setter Contest 2019 (rs) Batch 8
orlando N/A Tags: Bitmask, Data Structures, Dynamic Programming, Graph Theory, Trees orlando RI Problem Setter Contest 2019 (zhuan, 0rang3) Batch 4
birthday N/A Tags: Explicitly Excluded (from IOI), Math birthday RI Problem Setter Contest 2019 (syy) Batch 5
marathon N/A Tags: Dynamic Programming, Graph Theory marathon RI Problem Setter Contest 2019 (Ziwyy) Batch 5
rabbitplane N/A Tags: Binary Search, Greedy rabbitplane RI Problem Setter Contest 2019 (bensonlzl) Batch 11
lineup2 N/A Tags: Syntax Lineup RI Problem Setter Contest 2019 (rs) Batch 87
kickingshoes N/A Tags: Data Structures, Greedy, Math Kicking Shoes Educational Round 4 (maomao90) Batch 16
7up N/A Tags: Syntax 7up RI November Course Stage 2 Selection Test 2019 Batch 181
scrivener N/A Tags: Data Structures Crayfish scrivener IOI 2012 Interactive 19
cousin N/A Tags: Graph Theory, Trees cousin Dunjudge Archive Interactive 18
candyshop N/A Tags: Data Structures candyshop Classic Problem Batch 52
construction N/A Tags: Graph Theory, Trees Construction of Highway JOI 2017/2018 Spring Camp Batch 8
jumps N/A Tags: Data Structures, Greedy Rainforest Jumps APIO 2021 (bensonlzl) Interactive 20
hexagon N/A Tags: Graph Theory, Math Hexagonal Territory APIO 2021 Interactive 1
count1graphs N/A Tags: Math Count 1 Graphs Educational Round 4 (maomao90, errorgorn) Batch 3
gwynethandtree N/A Tags: Divide and Conquer, Graph Theory, Trees Gwyneth and Tree Codeforces 342E Batch 44
chemistry N/A Tags: Dynamic Programming, Joke chemistry April Fools Contest 2020 (0rang3) Batch 9
wormholes N/A Tags: Dynamic Programming wormholes Dunjudge Archive Batch 135
istj N/A Tags: Data Structures, Trees ISTJ 2020 CNY, Classic Problem (0rang3, shenxy13) Batch 15
bookshelf N/A Tags: Data Structures bookshelf Dunjudge Archive Batch 61
bombing N/A Tags: Graph Theory bombing Dunjudge Archive Batch 32
atm N/A Tags: Graph Theory The Great ATM Robbery APIO 2009 Batch 33
mice N/A Tags: Graph Theory mice Dunjudge Archive Batch 22
bombing2 N/A Tags: Graph Theory bombing2 Dunjudge Archive Batch 33
sailor N/A Tags: Graph Theory sailor CPSPC 2010 Batch 27
doodles N/A Tags: Graph Theory, Math doodles December Course 2019 Advanced Final Contest (rs) Batch 5
clockpalindrome N/A Tags: Adhoc, Dynamic Programming clockpalindrome December Course 2019 Advanced Final Contest Batch 7
hdb N/A Tags: Data Structures, Dynamic Programming hdb Dunjudge Archive Batch 32
skyscraper_apio15 N/A Tags: Graph Theory, Square Root Decomposition Jakarta Skyscrapers APIO 2015 Batch 21
lppufdsrb N/A Tags: Data Structures, Graph Theory, Square Root Decomposition Lazy Propagation Persistent Union Find Disjoint Set with Rollbacks Educational Round 4 (jamessng, errorgorn) Batch 12
edgeflip N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees Edge Flipping Educational Round 4 (jamessng) Batch 14
bubblesort N/A Tags: Data Structures, Divide and Conquer, Dynamic Programming Bubble Sort Educational Round 4 (jamessng, zaneyu, oolimry) Batch 18
boarding N/A Tags: Adhoc, Dynamic Programming, Graph Theory boarding NUSH ISC 2018 Batch 4
chess N/A Tags: Adhoc, Bitmask, Data Structures chess NUSH ISC 2018 Batch 8
bananaland N/A Tags: Dynamic Programming bananaland NUSH ISC 2018 Batch 9
strangedevice N/A Tags: Data Structures, Math Strange Device APIO 2019 Batch 22
sandd N/A Tags: Binary Search sandd Classic Problem Interactive 170
mugger N/A Tags: Dynamic Programming mugger RI Problem Setter Contest 2019 (ngmh) Batch 42
bridges_apio19 N/A Tags: Graph Theory, Square Root Decomposition Bridges APIO 2019 Batch 16
badknapsack N/A Tags: Brute Force, Dynamic Programming badknapsack Educational Round 3 (errorgorn) Batch 17
inversemax N/A Tags: Bitmask, Dynamic Programming inversemax Educational Round 3 (errorgorn) Batch 25
cheaters N/A Tags: Explicitly Excluded (from IOI), Math cheaters Educational Round 3 (errorgorn) Batch 6
fencing3 N/A Tags: Data Structures, Square Root Decomposition fencing3 Educational Round 3 (errorgorn, tqbfjotld) Batch 4
catalansum N/A Tags: Explicitly Excluded (from IOI), Math catalansum (EE) Educational Round 3 (errorgorn, oolimry) Batch 12
cardgame2 N/A Tags: Dynamic Programming cardgame2 Dunjudge Archive Batch 8
cardgame N/A Tags: Data Structures, Dynamic Programming cardgame Dunjudge Archive Batch 5
primepie N/A Tags: Math primepie Dunjudge Archive Interactive 54
orchard2 N/A Tags: Dynamic Programming orchard2 RI NOI Selection Test 2015 Batch 17
hacker N/A Tags: Data Structures, Greedy, Line Sweep/Sliding Window hacker BOI 2015 Batch 15
sawmills N/A Tags: Data Structures, Divide and Conquer, Dynamic Programming Two Sawmills CEOI 2004 Batch 16
scanner N/A Tags: Dynamic Programming scanner Dunjudge Archive Batch 50
jumping2 N/A Tags: Data Structures, Divide and Conquer, Dynamic Programming Jumping Dunjudge Archive Batch 29
ballot N/A Tags: Data Structures ballot Dunjudge Archive Batch 140
UCFJ N/A Tags: Data Structures UCFJ USACO 2021 US Open, Platinum Batch 7
corporate N/A Tags: Data Structures, Divide and Conquer Corporate IOI 2020 Practice Session Batch 5
sequence_apio N/A Tags: Dynamic Programming Split the sequence APIO 2014 Batch 30
sort N/A Tags: Adhoc sort Classic Problem? Batch 182
aliens N/A Tags: Data Structures aliens Dunjudge Archive Batch 24
GSS N/A Tags: Greedy GSS Dunjudge Archive Batch 350
scalars N/A Tags: Greedy scalars Dunjudge Archive Batch 208
chinese N/A Tags: Syntax chinese Dunjudge Archive Batch 129
potatosalad N/A Tags: Greedy potatosalad Classic Problem Batch 740
skillmoves N/A Tags: Data Structures, Greedy skillmoves RI November Course Stage 2 Selection Test 2019 Batch 76
cuberoot N/A Tags: Binary Search, Math, Syntax cuberoot Classic Problem Batch 547
sudoku N/A Tags: Constructive Algorithms, Greedy sudoku NOI 2015 Batch 6
shuffle N/A Tags: Constructive Algorithms, Graph Theory shuffle NOI 2019 (guangxuan) Interactive 4
citymapping N/A Tags: Constructive Algorithms, Graph Theory, Information Theory, Trees CityMapping NOI 2018 (pwypeanut) Interactive 10
lampposts N/A Tags: Binary Search lampposts Dunjudge Archive Interactive 28
cards N/A Tags: Data Structures cards Dunjudge Archive Batch 19
chunlian N/A Tags: Data Structures chunlian Dunjudge Archive Batch 38
1402 N/A Tags: Adhoc, Joke 1402 April Fools' 2021 (bensonlzl) Batch 65
aliens_ioi N/A Tags: Binary Search, Data Structures, Dynamic Programming Aliens IOI 2016 Interactive 13
countedges N/A Tags: Dynamic Programming, Graph Theory, Math Counting Edges USACO 2021 February Contest, Platinum Batch 1
minedges N/A Tags: Graph Theory Minimizing Edges USACO 2021 February Contest, Platinum Batch 1
notimetodry N/A Tags: Data Structures, Square Root Decomposition No Time to Dry USACO 2021 February Contest, Platinum Batch 5
escapesadland N/A Tags: Binary Search, Graph Theory Escape Sadland Dunjudge Archive Batch 3
snack N/A Tags: Dynamic Programming, Greedy snack Dunjudge Archive Batch 251
stepgame N/A Tags: Dynamic Programming, Greedy stepgame Classic Problem Batch 302
badpotato N/A Tags: Dynamic Programming badpotato Dunjudge Archive Batch 168
malcolm N/A Tags: Line Sweep/Sliding Window malcolm COCI 2012/2013 Batch 46
squidzofrenzic N/A Tags: Binary Search squidzofrenzic Dunjudge Archive Batch 277
restaurant N/A Tags: Greedy restaurant Dunjudge Archive Batch 75
carpark N/A Tags: Greedy carpark Dunjudge Archive Batch 215
explosion N/A Tags: Math explosion Classic Problem Batch 143
countalp N/A Tags: Syntax countalp Classic Problem Batch 286
pigeonhole N/A Tags: Data Structures pigeonhole Dunjudge Archive Batch 141
uniquenumbers N/A Tags: Data Structures uniquenumbers Classic Problem Batch 473
reflection N/A Tags: Constructive Algorithms, Math reflection RI-HCI NOI Selection Test 2020 (eutroph) Batch 1
solarstorm N/A Tags: Graph Theory, Line Sweep/Sliding Window, Trees Solar Storm NOI 2020 Prelims Batch 26
harbingers N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees harbingers CEOI 2009 Batch 9
gizmoguy N/A Tags: Slope Trick Gizmo Guy IOI 2020 Practice Session Batch 6
housevisit N/A Tags: Dynamic Programming, Graph Theory, Trees housevisit CNY Contest 2019 (bensonlzl) Batch 37
1821 N/A Tags: Constructive Algorithms, Graph Theory, Joke, Trees 1821 April Fools' 2021 (zaneyu) Batch 157
0405 N/A Tags: Joke, Math 0405 April Fools' 2021 (zaneyu) Batch 86
1503 N/A Tags: Adhoc, Joke 1503 April Fools' 2021 (jamielim) Batch 72
pond N/A Tags: Data Structures, Dynamic Programming pond NOI 2021 Finals (jeff_) Batch 2
archaeologist N/A Tags: Adhoc archaeologist NOI 2021 Finals Interactive 18
tiles N/A Tags: Bitmask, Data Structures, Dynamic Programming tiles NOI 2021 Finals (eutroph) Batch 37
fraud N/A Tags: Adhoc, Math fraud NOI 2021 Finals (Damian) Batch 104
password N/A Tags: Data Structures, Dynamic Programming, Greedy, Slope Trick password NOI 2021 Finals (ngyupeng6) Batch 38
1609 N/A Tags: Joke 1609 April Fools' 2021 (0rang3) Batch 289
colorgraph N/A Tags: Graph Theory colorgraph uwu (errorgorn) Batch 19
latex N/A Tags: Data Structures, Dynamic Programming latex RI Deccourse 2018 Selection Test Batch 10
acorns N/A Tags: Data Structures acorns MCO 2016 Batch 19
lppfnlcst2 N/A Tags: Data Structures Lazy Propogation Persistant Fat Nodes Li Chao Segment Tree 2 Classic Problem (errorgorn) Batch 5
efficientdelivery N/A Tags: Adhoc, Brute Force efficientdelivery UWCOI 2021 Batch 13
yabbitmeetup N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees yabbitmeetup HCI NOI Selection Retest 2020 (bensonlzl) Batch 9
mememagic N/A Tags: Dynamic Programming mememagic Dunjudge Archive Batch 24
train_ex N/A Tags: Dynamic Programming train_ex Dunjudge Archive Batch 45
train N/A Tags: Dynamic Programming train Dunjudge archive Batch 100
commando N/A Tags: Data Structures, Dynamic Programming commando APIO 2010 Batch 79
foolpruf N/A Tags: Data Structures, Graph Theory, Greedy Foolprüf Security NERC 2019 Batch 3
supperbox N/A Tags: Divide and Conquer, Dynamic Programming Estelle’s Supper Box RI-HCI NOI Selection Test 2018 Batch 60
catgameshow N/A Tags: Data Structures catgameshow RI/RJC NOI Selection Test 2016 Batch 16
guards N/A Tags: Divide and Conquer, Dynamic Programming Guards Hackerrank IOI 2014 Practice Contest 2 Batch 53
truck N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Math, Trees truck NOI 2021 Qualification (huajun) Batch 26
departure N/A Tags: Data Structures, Greedy departure NOI 2021 Qualification Batch 18
competition N/A Tags: Greedy competition NOI 2021 Qualification Batch 323
bracketcount N/A Tags: Dynamic Programming, Explicitly Excluded (from IOI) bracketcount Valentines Contest 2021 (errorgorn) Batch 3
dahliahostels N/A Tags: Dynamic Programming, Math dahliahostels Valentines Contest 2021 (errorgorn) Batch 3
ducknuggetconvention N/A Tags: Data Structures, Divide and Conquer Duck Nugget Convention Valentines Contest 2021 (oolimry) Batch 33
trivialmaths N/A Tags: Explicitly Excluded (from IOI), Math trivialmaths Valentines Contest 2021 (errorgorn) Interactive 23
catteams N/A Tags: Data Structures, Divide and Conquer, Dynamic Programming catteams RI/RJC NOI Selection Test 2016 Batch 21
rarsum N/A Tags: Dynamic Programming rarsum Raffles Cat Helping Contest 2013 Batch 38
rarwall N/A Tags: Data Structures rarwall Dunjudge Archive Interactive 21
troubles N/A Tags: Adhoc, Data Structures, Dynamic Programming troubles Dunjudge Archive Batch 39
snakesnack2 N/A Tags: Line Sweep/Sliding Window snakesnack2 RI-HCI-NUSH NOI Selection Test 2021 (errorgorn) Batch 38
rebuild N/A Tags: Constructive Algorithms, Graph Theory, Greedy rebuild RI-HCI-NUSH NOI Selection Test 2021 (shenxy13) Interactive 18
fertile N/A Tags: Binary Search, Data Structures, Dynamic Programming fertile RI-HCI-NUSH NOI Selection Test 2021 (errorgorn) Batch 23
bunnyscore N/A Tags: Adhoc, Data Structures bunnyscore RI-HCI-NUSH NOI Selection Test 2021 (errorgorn) Interactive 33
armpit N/A Tags: Adhoc armpit RI-HCI-NUSH NOI Selection Test 2021 (errorgorn) Batch 46
construct N/A Tags: Dynamic Programming, Graph Theory Constructing Birthday Presents RI-HCI-NUSH NOI Selection Test 2021 (0rang3) Batch 71
bucketstacking N/A Tags: Adhoc, Greedy Bucket Stacking RI-HCI-NUSH NOI Selection Test 2021 (oolimry) Batch 29
swimming N/A Tags: Graph Theory Constructing a Swimming Pool RI-HCI-NUSH NOI Selection Test 2021 (0rang3) Batch 46
wabbit N/A Tags: Greedy wabbit RI-HCI-NUSH NOI Selection Test 2021 (oolimry) Batch 106
fencing N/A Tags: Data Structures, Line Sweep/Sliding Window, Square Root Decomposition Fencing RI-HCI-NUSH NOI Selection Test 2021 (errorgorn) Batch 25
magick N/A Tags: Adhoc, Information Theory, Math Magick RI-HCI NOI Selection Test 2019 Communication 13
combo N/A Tags: Adhoc Combo IOI 2018 Interactive 40
werewolf N/A Tags: Data Structures, Graph Theory, Trees Werewolf IOI 2018 Interactive 11
nian N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees Nian 2020 CNY (oolimry) Batch 25
summarising2020 N/A Tags: Information Theory, Joke Summarising 2020 Hello 2021 (shenxy13) Interactive 72
hashcollision N/A Tags: Joke Hash Collision Hello 2021 (shenxy13) Interactive 112
samelength N/A Tags: Joke Same Length Hello 2021 (errorgorn) Batch 75
holdinghands N/A Tags: Graph Theory, Trees holdinghands Dec Course 2020 BAPS (jiahng) Batch 12
quillvsowl N/A Tags: Adhoc, Line Sweep/Sliding Window Quill Vs Owl Dec Course 2020 BAPS (jamielim) Batch 61
dna N/A Tags: Dynamic Programming DNA APIO 2008 Batch 30
girlfriend N/A Tags: Dynamic Programming, Graph Theory girlfriend Dunjudge Archive Batch 45
tour N/A Tags: Bitmask, Dynamic Programming, Graph Theory tour NOI 2011 Batch 32
variety N/A Tags: Dynamic Programming variety RI November Course Stage 2 Selection Test 2019 Batch 65
appletree N/A Tags: Graph Theory appletree Dunjudge Archive Batch 35
bananafever N/A Tags: Dynamic Programming, Graph Theory, Trees bananafever Dunjudge Archive Batch 28
delivery N/A Tags: Bitmask, Dynamic Programming, Graph Theory delivery Dunjudge Archive Batch 17
graphcraft N/A Tags: Graph Theory graphcraft Dunjudge Archive Interactive 67
numbers N/A Tags: Dynamic Programming Palindrome-Free Numbers BOI 2013 Batch 68
assembly N/A Tags: Dynamic Programming assembly Dunjudge Archive Batch 101
lazycat N/A Tags: Bitmask, Dynamic Programming, Graph Theory lazycat Dunjudge Archive Batch 40
makemst N/A Tags: Graph Theory, Math makemst Codeforces 1088F Batch 11
haiku N/A Tags: Dynamic Programming Iroha and Haiku AtCoder Batch 9
padoru N/A Tags: Graph Theory Hashire Sori Yo! Dec Course 2020 BAPS (peaceknight05) Batch 67
bracketflip N/A Tags: Data Structures, Line Sweep/Sliding Window, Math bracketflip Dec Course 2020 BAPS (pavement) Batch 14
split N/A Tags: Constructive Algorithms, Graph Theory, Trees Split the Attractions IOI 2019 (Day 1) Interactive 4
village N/A Tags: Graph Theory, Greedy, Trees village BOI 2020 Batch 23
monochromecat N/A Tags: Graph Theory, Trees monochromecat ARC 097 Batch 22
invasion N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Line Sweep/Sliding Window, Trees invasion Dunjudge Archive Batch 22
multipaths N/A Tags: Dynamic Programming, Graph Theory, Trees Multiple Paths Dunjudge Archive Batch 36
oranges2 N/A Tags: Graph Theory, Trees oranges2 RI Deccourse 2018 Selection Test (0rang3) Batch 120
railway N/A Tags: Graph Theory, Trees railway CPSPC 2004 Batch 96
ancestor N/A Tags: Dynamic Programming, Graph Theory, Trees ancestor Classic problem Batch 159
employee N/A Tags: Graph Theory, Trees employee Dunjudge Archive Batch 91
countingagain N/A Tags: Dynamic Programming, Math Counting Again ARC 104D Batch 28
localexpress N/A Tags: Dynamic Programming localexpress AtCoder Typical DP Contest Batch 91
towers N/A Tags: Data Structures, Dynamic Programming towers Codeforces 474E Batch 74
snowcow N/A Tags: Data Structures, Graph Theory, Trees Snowcow USACO 2019 December Contest Platinum Batch 35
guessarray N/A Tags: Adhoc 4sadfaces Guessing an Array Dec Course 2020 BAPS (zaneyu) Interactive 27
ants N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees ants Dunjudge Archive Interactive 31
smurfpaths N/A Tags: Data Structures, Graph Theory, Trees smurfpaths RI-HCI NOI Selection Test 2020 (rs) Batch 91
payraise N/A Tags: Graph Theory payraise Dunjudge Archive Batch 139
selectingintervals N/A Tags: Binary Search, Dynamic Programming selectingintervals Codeforces 1055E Batch 30
globalwarming_ceoi N/A Tags: Data Structures, Dynamic Programming Global warming CEOI 2018 Batch 26
orchard N/A Tags: Dynamic Programming, Line Sweep/Sliding Window orchard NOI 2014 Batch 95
installingapps N/A Tags: Dynamic Programming, Greedy Installing Apps NWERC 2017 Batch 33
christmaswall N/A Tags: Explicitly Excluded (from IOI), Math Christmas Wall Educational Round 2 (maomao90) Batch 7
duckduckgo N/A Tags: Greedy duckduckgo Codeforces 1091F Batch 39
visitingsingapore N/A Tags: Dynamic Programming Visiting Singapore NOI 2020 Prelims Batch 22
llis N/A Tags: Dynamic Programming Longest LIS NUSH NOI Selection Test 2018 Batch 47
election N/A Tags: Data Structures, Dynamic Programming election Dunjudge Archive Batch 44
modules N/A Tags: Binary Search, Data Structures, Dynamic Programming, Line Sweep/Sliding Window modules NUSH NOI Selection Test 2018 Batch 38
4russians N/A Tags: Dynamic Programming 4russians RI-HCI NOI Selection Test 2020 (jamielim) Batch 105
nis N/A Tags: Data Structures, Dynamic Programming nis Dunjudge Archive Batch 94
stamps N/A Tags: Dynamic Programming stamps Dunjudge Archive Batch 89
assignpaths N/A Tags: Binary Search, Graph Theory, Greedy, Trees assignpaths USACO 2020 February Contest, Platinum Batch 31
manycolours N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Trees manycolours ABC 133 Batch 49
merchant_o N/A Tags: Dynamic Programming, Slope Trick Merchant Otter Dec Course 2020 BAPS (myrcella) Batch 30
arrayproblem N/A Tags: Greedy arrayproblem Codeforces Batch 139
cheerleaders N/A Tags: Dynamic Programming cheerleaders Atcoder Educational DP Contest Batch 62
snakesnack N/A Tags: Dynamic Programming, Greedy snakesnack Codeforces 1239E Batch 28
neckties N/A Tags: Data Structures, Greedy Just Long Neckties JOI 2020 Final Round Batch 105
laughter N/A Tags: Binary Search, Data Structures, Line Sweep/Sliding Window laughter Educational Codeforces Round 27 Batch 21
smurfberries N/A Tags: Binary Search smurfberries All-Ukrainian School Olympiad in Informatics 2011 Batch 26
smallprimes_ex N/A Tags: Meet in the Middle Small Primes? Classic Problem? Batch 46
removeedges N/A Tags: Graph Theory removeedges Atcoder Batch 27
bichrome N/A Tags: Graph Theory, Math, Trees bichrome Atcoder Batch 16
funnytree N/A Tags: Graph Theory, Trees Funny Tree (Extreme Version) RuCode 2020 Div A (Extreme Version) (0rang3, rs) Batch 10
christmasturkeyfarm N/A Tags: Data Structures Christmas Turkey Farming Educational Round 2 (dillion) Batch 19
christmastree N/A Tags: Graph Theory, Trees Christmas Tree Educational Round 2 (errorgorn, oolimry) Batch 15
pairs N/A Tags: Binary Search pairs AtCoder Beginner Contest 155 Batch 62
christmasfiboseq N/A Tags: Math Chirstmas Fibonacci Sequence Educational Round 2 (errorgorn) Batch 9
candies_joi N/A Tags: Adhoc, Greedy candies_joi JOI 2017/2018 Spring Camp Batch 36
blocks N/A Tags: Information Theory, Math Blocks UWCOI 2020 (socho, astoria, kimbj0709) Interactive 6
books N/A Tags: Graph Theory, Greedy Ancient Books IOI 2017 Interactive 10
escape N/A Tags: Bitmask, Brute Force, Graph Theory Escape UWCOI 2020 (socho, astoria, kimbj0709) Batch 11
naan N/A Tags: Greedy, Math naan JOI 2018/2019 Spring Camp Batch 24
baseplans N/A Tags: Adhoc Base Plans UWCOI 2020 (socho, astoria, kimbj0709) Batch 33
merchant N/A Tags: Binary Search, Dynamic Programming, Graph Theory Travelling Merchant APIO 2017 Batch 25
runway N/A Tags: Binary Search, Graph Theory Jianzhi’s Runway Show RI NOI Selection Test 2017 Batch 95
rabbitlineup N/A Tags: Divide and Conquer, Dynamic Programming rabbitlineup Codeforces 1105C (Buffed) Batch 15
globalwarming N/A Tags: Line Sweep/Sliding Window Global Warming NOI 2013 Batch 153
justright N/A Tags: Binary Search justright Dunjudge Archive Batch 85
lunchcombo N/A Tags: Binary Search, Greedy lunchcombo RI November Course Stage 2 Selection Test 2019 Batch 77
rubies N/A Tags: Binary Search rubies Dunjudge Archive (pwypeanut) Batch 51
summit N/A Tags: Binary Search summit Dunjudge Archive Batch 193
nonboringsequences N/A Tags: Divide and Conquer nonboringsequences Dunjudge Archive Batch 56
ljubomora N/A Tags: Binary Search ljubomora COCI 2012/2013 Batch 230
inversions N/A Tags: Data Structures, Divide and Conquer inversions Dunjudge Archive Batch 113
fuel N/A Tags: Greedy fuel Dunjudge Archive Batch 193
harddisk N/A Tags: Bitmask, Brute Force, Meet in the Middle harddisk 2015 NOI Training Problem-Setter Contest Batch 88
catfight N/A Tags: Line Sweep/Sliding Window catfight Dunjudge Archive Batch 299
bobek N/A Tags: Bitmask, Meet in the Middle bobek CEOI 2015 Batch 99
4sum N/A Tags: Meet in the Middle 4sum NOI 2008 Batch 240
flamethrower N/A Tags: Brute Force Flame Thrower Dunjudge Archive Batch 814
candymountain_ex N/A Tags: Data Structures, Dynamic Programming candymountain_ex Dunjudge Archive Batch 203
christmasfeast N/A Tags: Adhoc Christmas Feast Educational Round 2 (errorgorn) Batch 73
baseplans_ex N/A Tags: Data Structures baseplans_ex UWCOI 2020 (socho, astoria, kimbj0709) Batch 26
omnomnom2 N/A Tags: Graph Theory, Trees omnomnom2 Classic Problem Batch 124
toll N/A Tags: Data Structures, Dynamic Programming toll BOI 2017 Batch 27
lcm N/A Tags: Math lcm Classic Problem Batch 210
segmenttree2 N/A Tags: Data Structures Segment Tree 2 Classic Problem Batch 191
omnomnom N/A Tags: Dynamic Programming, Graph Theory, Trees omnomnom Classic Problem Batch 178
replacedigits N/A Tags: Data Structures Replace Digits ACL Beginner Contest Batch 84
ragingthunder N/A Tags: Data Structures Raging Thunder Codeforces Batch 14
goodsubsegments N/A Tags: Data Structures goodsubsegments Codeforces Round #493 (Div. 1) Batch 7
fire N/A Tags: Data Structures, Line Sweep/Sliding Window fire JOI 2020 Final Round Batch 11
garaza N/A Tags: Data Structures, Math garaza COCI Batch 8
collaboration N/A Tags: Data Structures, Graph Theory, Trees Collaboration December Course 2019 Advanced Final Contest (0rang3) Interactive 16
optimalsubseq N/A Tags: Binary Search, Data Structures optimalsubseq Codeforces 1227D2 Batch 56
sightseeing2 N/A Tags: Graph Theory, Trees sightseeing2 RI NOI Selection Test 2015 Batch 82
examinations N/A Tags: Data Structures, Line Sweep/Sliding Window examinations JOI Batch 52
bacteria N/A Tags: Data Structures bacteria Dunjudge Archive Batch 68
sherlockinversions N/A Tags: Data Structures, Square Root Decomposition sherlockinversions Dunjudge Archive Batch 64
timeleap N/A Tags: Data Structures timeleap JOI Batch 6
streetlamps N/A Tags: Data Structures, Divide and Conquer Street Lamps APIO 2019 Batch 16
sterilizing N/A Tags: Data Structures sterilizing JOI 2014/15 Batch 58
ohbabyntriples N/A Tags: Binary Search, Data Structures, Greedy Oh Baby, n Triples! IOI 2020 Practice Session Batch 12
collectmushrooms5 N/A Tags: Greedy collectmushrooms5 Dunjudge Archive Batch 24
collectmushrooms4 N/A Tags: Data Structures, Dynamic Programming collectmushrooms4 Dunjudge Archive Batch 26
collectmushrooms3 N/A Tags: Data Structures collectmushrooms3 Dunjudge Archive Batch 69
collectmushrooms N/A Tags: Syntax collectmushrooms Dunjudge Archive Batch 145
sortbooks N/A Tags: Data Structures sortbooks IZhO 2019 Batch 43
poklon N/A Tags: Data Structures, Square Root Decomposition poklon COCI 2016/2017 Batch 73
cake N/A Tags: Brute Force, Data Structures cake CEOI 2014 Batch 34
flights N/A Tags: Graph Theory flights Dunjudge Archive Batch 66
simp N/A Tags: Adhoc, Brute Force Simp Codeforces 1033A Batch 427
trains_mco N/A Tags: Graph Theory, Greedy trains_mco MCO 2015 Batch 13
removeelements N/A Tags: Binary Search, Data Structures removeelements Codeforces Round #668 Batch 30
fortunetelling N/A Tags: Data Structures Fortune Telling 2 JOI 2014 Batch 37
ferries N/A Tags: Graph Theory ferries NOI 2013 Batch 45
inheritance N/A Tags: Binary Search, Graph Theory inheritance JOI 2014/2015 Batch 83
rblock N/A Tags: Graph Theory rblock USACO 2011 December Contest, Silver Division Batch 74
towerdefense N/A Tags: Graph Theory towerdefense Dunjudge Archive Batch 74
boundlessboxes N/A Tags: Graph Theory boundlessboxes Dunjudge Archive Batch 156
snakenladder N/A Tags: Dynamic Programming snakenladder Dunjudge Archive Batch 75
universe N/A Tags: Graph Theory, Trees universe Dunjudge Archive Batch 148
subgraphs N/A Tags: Graph Theory Subgraphs Dunjudge Archive Batch 418
splithunny N/A Tags: Graph Theory splithunny Dunjudge Archive Batch 378
magicwand N/A Tags: Graph Theory magicwand Dunjudge Archive Batch 166
milkweed N/A Tags: Graph Theory milkweed Dunjudge Archive Batch 257
adjmatrix N/A Tags: Graph Theory Adjacency Matrix Dunjudge Archive Batch 691
adjlist N/A Tags: Graph Theory Adjacency List Dunjudge Archive Batch 610
dijkstra N/A Tags: Graph Theory dijkstra Dunjudge Archive Batch 281
bracketsuperseq N/A Tags: Dynamic Programming Shortest Bracket Supersequence Codeforces 1272F Batch 38
beautifulbrackets N/A Tags: Dynamic Programming Beautiful Bracket Sequence Codeforces 1264D1 Batch 30
fractionalmultiset N/A Tags: Dynamic Programming Fractional Multiset ARC 107 Batch 44
hedgehogcrimes_easy N/A Tags: Dynamic Programming Hedgehog Crimes (Easy Version) Classic Problem Batch 157
unmerge N/A Tags: Dynamic Programming Unmerge Codeforces 1381B Batch 67
infiniteloop N/A Tags: Graph Theory Infinite Looping Sequence 2017 RI Dec Course Sel (pwypeanut) Batch 22
arrangetoys N/A Tags: Graph Theory, Math Arranging Toy Displays AGC 016D Batch 21
catchingcheaters N/A Tags: Dynamic Programming Catching Cheaters Codeforces Round 683 (Div 1) Batch 62
subknapsack N/A Tags: Dynamic Programming Knapsack for All Subsets Atcoder Beginner Contest 169 Batch 46
moosic N/A Tags: Data Structures moosic Codeforces Round #386 Batch 28
conversations N/A Tags: Data Structures Zookeeper's Conversations Singapore Zoo (shenxy13) Batch 97
berlandtaxi N/A Tags: Data Structures Berland.Taxi NEERC 2017 Southern Subregional Contest Batch 21
frogs N/A Tags: Syntax Frogs Winter Computer School 2010/11 Team Contest #1 Batch 223
smallprimes N/A Tags: Brute Force, Math Small Primes Classic Problem Batch 110
beareatrabbit N/A Tags: Dynamic Programming Bear Eat Rabbit Classic Problem Batch 321
fibo N/A Tags: Dynamic Programming, Math Fibonacci Classic Problem Batch 838
mercurypoisoning N/A Tags: Graph Theory Mercury Poisoning UWCOI 2020 (socho, astoria, kimbj0709) Batch 25
pairsums N/A Tags: Syntax Button Pairs UWCOI 2020 (socho, astoria, kimbj0709) Batch 390
peakfinding N/A Tags: Syntax Peak Finding UWCOI 2020 (socho, astoria, kimbj0709) Batch 214
mountains N/A Tags: Data Structures Mountains NOI 2020 Prelims (feeder) Batch 162
snapknack N/A Tags: Dynamic Programming snapknack Dunjudge Archive Batch 57
rabbiteatrabbit N/A Tags: Dynamic Programming rabbiteatrabbit Dec Trg 2019 (Elementary) (jamielim) Batch 112
trains N/A Tags: Dynamic Programming trains Dunjudge Archive Batch 193
walking N/A Tags: Dynamic Programming walking NOI 2012 Batch 73
lis_easy N/A Tags: Dynamic Programming lis_easy Classic problem Batch 571
moneychanger N/A Tags: Dynamic Programming moneychanger Dunjudge Archive Batch 339
speakers N/A Tags: Greedy speakers Dunjudge Archive Batch 162
routers N/A Tags: Greedy routers Dunjudge Archive Batch 100
pandaeyes N/A Tags: Greedy pandaeyes Dunjudge Archive Batch 248
blanko N/A Tags: Data Structures, Greedy blanko Dunjudge Archive Batch 15
weddingcoins N/A Tags: Greedy weddingcoins Dunjudge Archive Batch 432
numericalstrings N/A Tags: Greedy, Math numericalstrings RI November Course Stage 2 Selection Test 2019 Batch 66
binarycoins N/A Tags: Bitmask, Greedy, Syntax binarycoins Dunjudge Archive Batch 378
lemonadestand N/A Tags: Greedy lemonadestand Dunjudge Archive Batch 27
change N/A Tags: Greedy change NOI 2011 Batch 49
lopov N/A Tags: Data Structures lopov COCI 2013/2014 Batch 19
bridge_apio15 N/A Tags: Data Structures Palembang Bridges APIO 2015 Batch 31
ballgame N/A Tags: Data Structures, Dynamic Programming ballgame Dunjudge Archive Interactive 53
optmilk N/A Tags: Data Structures, Dynamic Programming Optimal Milking Dunjudge Archive Batch 98
clique N/A Tags: Data Structures clique Algorithm Class Mini-Contest 8 Batch 69
jams N/A Tags: Data Structures Jams Algorithm Class Mini-Contest 8 Batch 29
penguinfood N/A Tags: Data Structures penguinfood Dunjudge Archive Batch 82
illuminate N/A Tags: Math, Syntax Illuminate RI-HCI NOI Selection Test 2020 (bensonlzl) Batch 211
wabot N/A Tags: Greedy wabot December Course 2019 Advanced Final Contest (bensonlzl) Batch 243
boxispull N/A Tags: Adhoc, Syntax Box is Pull Codeforces Raif Round 1 (bensonlzl) Batch 650
artswap N/A Tags: Data Structures artswap HCI NOI Selection Retest 2020 (bensonlzl) Interactive 24
smurf N/A Tags: Brute Force, Syntax smurf RI Deccourse 2018 Selection Test (tch1001) Batch 541
paint_apio N/A Tags: Adhoc, Line Sweep/Sliding Window, Square Root Decomposition paint_apio APIO 2020 Interactive 15
swap N/A Tags: Graph Theory, Trees Swapping Cities APIO 2020 Interactive 29
fun N/A Tags: Adhoc, Graph Theory, Information Theory, Trees Fun Tour APIO 2020 Interactive 7
bracketex N/A Tags: Data Structures, Syntax bracketex Dunjudge Archive Batch 496
lineup N/A Tags: Line Sweep/Sliding Window lineup USACO Silver Nov 2011 Batch 195
poi N/A Tags: Syntax poi IOI 2009 Batch 140
catlunch N/A Tags: Data Structures, Greedy catlunch RI/RJC NOI Selection Test 2016 Batch 341
ccs N/A Tags: Binary Search, Data Structures ccs Dunjudge Archive Batch 282
medianheap N/A Tags: Data Structures medianheap Dunjudge Archive Batch 203
supermarket N/A Tags: Data Structures, Line Sweep/Sliding Window supermarket RI Dec Course Sel 2017 Batch 67
lengthsort N/A Tags: Syntax lengthsort Dunjudge Archive Batch 467
arrayfind N/A Tags: Binary Search arrayfind Dunjudge Archive Batch 410
contestcalc N/A Tags: Math, Syntax contestcalc Dunjudge Archive Batch 468
lvm N/A Tags: Brute Force, Data Structures lvm NOI 2008 Batch 334
brick N/A Tags: Data Structures brick Dunjudge Archive Batch 631
guanine N/A Tags: Data Structures guanine Dunjudge Archive Batch 420
puttingstrings N/A Tags: Constructive Algorithms, Graph Theory puttingstrings RI-HCI December Course Selection 2020 (rs) Batch 27
springtrap N/A Tags: Data Structures springtrap Educational Round 1 (bensonlzl) Batch 3
lppfnlcst N/A Tags: Binary Search, Data Structures Lazy Propagation Persistant Fat Nodes Li Chao Segment Tree Educational Round 1 (errorgorn) Batch 25
lemmas N/A Tags: Graph Theory lemmas Educational Round 1 (errorgorn) Batch 40
spaceinvaders N/A Tags: Brute Force, Data Structures, Dynamic Programming, Line Sweep/Sliding Window spaceinvaders Educational Round 1 (bensonlzl) Batch 45
seats N/A Tags: Data Structures Seats IOI 2018 Interactive 3
divsum N/A Tags: Math Divisor Sum Educational Round 1 (errorgorn) Batch 21
cakerun N/A Tags: Data Structures Bowen's Cake Run December Course 2019 Advanced Final Contest (rs) Batch 27
messy N/A Tags: Binary Search Unscrambling a Messy Bug IOI 2016 Interactive 6
maximum N/A Tags: Syntax Maximum Dunjudge Archive Batch 1276
sumint N/A Tags: Syntax Sum of Integers Dunjudge Archive Batch 1319
segmenttree N/A Tags: Data Structures Segment Tree Classic problem Batch 307
naptime N/A Tags: Graph Theory, Greedy naptime RI-HCI December Course Selection 2020 (cstuart) Batch 42
conversations_easy N/A Tags: Data Structures Zookeeper's Conversations (Easy Version) RI-HCI December Course Selection 2020 (shenxy13) Batch 133
interestring N/A Tags: Dynamic Programming, Math interestring RI-HCI December Course Selection 2020 (cstuart) Batch 21
square_ioi N/A Tags: Dynamic Programming square_ioi IOI 2014 Practice Interactive 44
tickets N/A Tags: Adhoc, Data Structures Carnival Tickets IOI 2020 Interactive 12
horses N/A Tags: Data Structures, Math horses IOI 2015 Interactive 28
fencing2 N/A Tags: Data Structures fencing2 RI-HCI December Course Selection 2020 (errorgorn) Batch 6
xorb N/A Tags: Math, Syntax xorb Dunjudge Archive Batch 55
fruitsequences N/A Tags: Adhoc, Data Structures Fruit Sequences Codeforces Raif Round 1 (bensonlzl) Batch 63
bracketscore N/A Tags: Greedy bracketscore AGC48 Batch 48
growingtrees N/A Tags: Binary Search, Data Structures growingtrees BOI 2011 Batch 42
singlefile N/A Tags: Data Structures singlefile Dunjudge Archive Batch 78
taxcollection N/A Tags: Greedy, Syntax taxcollection RI-HCI December Course Selection 2020 (JustAWallaby) Batch 137
entropy N/A Tags: Greedy, Syntax entropy RI-HCI December Course Selection 2020 (0rang3) Batch 136
applefarm N/A Tags: Graph Theory applefarm NUSH ISC 2020 (oolimry) Batch 74
basketball N/A Tags: Binary Search, Greedy basketball NUSH ISC 2020 (dantoh) Batch 51
coke N/A Tags: Dynamic Programming, Greedy Coke NUSH ISC 2020 (errorgorn) Batch 94
ljll N/A Tags: Math LJLL NUSH ISC 2020 (errorgorn) Batch 62
performance N/A Tags: Math Performance NUSH ISC 2020 (oolimry) Batch 53
ping N/A Tags: Syntax ping RI HCI NOI Selection 2019 Practice (bensonlzl) Interactive 104
safety N/A Tags: Dynamic Programming, Slope Trick Safety NOI 2018 Batch 30
aesthetic N/A Tags: Binary Search, Data Structures, Graph Theory aesthetic NOI 2020 Finals (jeff_) Batch 12
arcade N/A Tags: Adhoc, Data Structures, Dynamic Programming arcade NOI 2020 Finals (pwypeanut) Batch 28
progression N/A Tags: Data Structures progression NOI 2020 Finals (Damian) Batch 42
discharging N/A Tags: Data Structures, Dynamic Programming discharging NOI 2020 Finals (huajun) Batch 65
labels N/A Tags: Adhoc labels NOI 2020 Finals (Damian) Batch 145
biscuits N/A Tags: Dynamic Programming, Math Packing Biscuits IOI 2020 (Day 2) Interactive 12
pandaski N/A Tags: Data Structures, Dynamic Programming pandaski NOI 2016 Batch 15
rockclimbing N/A Tags: Graph Theory rockclimbing NOI 2016 Batch 14
fabric N/A Tags: Data Structures, Dynamic Programming fabric NOI 2016 Batch 14
pokemonmaster N/A Tags: Data Structures, Dynamic Programming, Graph Theory, Square Root Decomposition, Trees I want to be the very best too! NOI 2017 Batch 8
mergecards N/A Tags: Adhoc, Dynamic Programming Merge Cards Google Kick Start 2020 Round G Batch 5
exponentiate_ex N/A Tags: Math exponentiate_ex Classic Problem Batch 93
carrots N/A Tags: Greedy carrots Codeforces Raif Round 1 (errorgorn) Batch 94
abbb N/A Tags: Greedy abbb Codeforces Raif Round 1 (errorgorn) Batch 108
firefighting N/A Tags: Dynamic Programming, Graph Theory, Trees firefighting NOI 2020 Qualification Batch 38
relaymarathon N/A Tags: Brute Force, Graph Theory relaymarathon NOI 2020 Qualification Batch 35
fuelstation N/A Tags: Data Structures fuelstation NOI 2020 Qualification (feeder) Batch 43
crypto N/A Tags: Data Structures crypto NOI 2020 Qualification (Damian) Batch 73
rmq N/A Tags: Data Structures, Greedy rmq NOI 2017 Batch 34
hotspot N/A Tags: Graph Theory hotspot NOI 2017 Batch 21
boomerangs N/A Tags: Adhoc Bouncing Boomerangs Codeforces Raif Round 1 (bensonlzl) Batch 7
riggedroads N/A Tags: Graph Theory, Greedy, Trees riggedroads NOI 2019 (pwypeanut) Batch 40
feast N/A Tags: Binary Search, Dynamic Programming, Greedy feast NOI 2019 (guangxuan) Batch 61
lasers N/A Tags: Adhoc, Data Structures lasers NOI 2019 Batch 57
pilot N/A Tags: Adhoc, Data Structures pilot NOI 2019 (pwypeanut) Batch 106
charges N/A Tags: Graph Theory Experimental Charges NOI 2019 Prelims (ranaldlys) Batch 84
lightningrod N/A Tags: Adhoc, Data Structures LightningRod NOI 2018 (guangxuan) Batch 185
journey3 N/A Tags: Dynamic Programming Journey NOI 2018 Batch 50
knapsack N/A Tags: Dynamic Programming Knapsack NOI 2018 Prelims Batch 68
plagia N/A Tags: Data Structures plagia December Course 2018 Advanced Final Contest Batch 30
collectmushrooms2 N/A Tags: Data Structures collectmushrooms2 Dunjudge Archive Batch 106
appeal N/A Tags: Data Structures appeal Dunjudge Archive Batch 43
fenwicktree N/A Tags: Data Structures fenwicktree Classic Problem Batch 188
rotarylock N/A Tags: Data Structures rotarylock HCI NOI Selection Test 2015 Batch 128
candies N/A Tags: Data Structures candies Dunjudge Archive Batch 126
pushups N/A Tags: Math pushups Dunjudge Archive Batch 163
sortedandsorted N/A Tags: Data Structures, Dynamic Programming sortedandsorted ARC 097 Batch 6
shikandgame N/A Tags: Data Structures, Dynamic Programming, Line Sweep/Sliding Window shikandgame AGC 007 Batch 16
car N/A Tags: Graph Theory car Dunjudge Archive Batch 245
rabbittolls N/A Tags: Graph Theory rabbittolls Dunjudge Archive Batch 18
cycling N/A Tags: Graph Theory, Trees cycling Dunjudge Archive Batch 18
sealevel N/A Tags: Graph Theory sealevel Dunjudge Archive Batch 171
penguinislands N/A Tags: Dynamic Programming, Graph Theory penguinislands Dunjudge Archive Batch 47
transform N/A Tags: Brute Force, Dynamic Programming, Graph Theory transform Dunjudge Archive Batch 121
rank N/A Tags: Graph Theory rank NOI 2008 Batch 99
foreveralone N/A Tags: Data Structures foreveralone Dunjudge Archive Batch 298
nemo N/A Tags: Graph Theory nemo Dunjudge Archive Batch 100
catleap N/A Tags: Graph Theory catleap Dunjudge Archive Batch 37
binaryroads N/A Tags: Graph Theory binaryroads Malaysian Computing Olympiad 2014 Batch 112
pandacity N/A Tags: Graph Theory, Greedy pandacity Dunjudge Archive Batch 76
goodmorning N/A Tags: Graph Theory Good Morning ISC 2020 practice (errorgorn) Batch 18
nihonese N/A Tags: Syntax nihonese ISC 2020 practice (errorgorn) Batch 119
simcity N/A Tags: Graph Theory simcity Dunjudge Archive Batch 89
sightseeing N/A Tags: Graph Theory, Trees sightseeing NOI 2014 Batch 156
minimax N/A Tags: Graph Theory, Trees minimax Hello 2020 (errorgorn) Batch 3
buycomputer N/A Tags: Greedy, Syntax buycomputer Dec Trg 2019 (Elementary) (errorgorn) Batch 59
surnames N/A Tags: Dynamic Programming, Graph Theory, Square Root Decomposition, Trees Surnames 2020 CNY (errorgorn) Batch 15
unluckyfloors N/A Tags: Dynamic Programming unluckyfloors NOI 2016 Batch 55
bestplace N/A Tags: Greedy, Syntax bestplace NOI 2017 Batch 312
xmas N/A Tags: Syntax xmas NOI 2009 Batch 563
rmaxq N/A Tags: Data Structures Range Max Query Dunjudge Archive Batch 165
roadsideadverts N/A Tags: Dynamic Programming, Graph Theory, Trees roadsideadverts NOI 2017 Batch 90
bananafarm N/A Tags: Data Structures bananafarm NOI 2015 Batch 113
card N/A Tags: Data Structures Card NOI 2010 Batch 594
gift N/A Tags: Syntax gift NOI 2007 Batch 336
lunchbox N/A Tags: Greedy Lunch Box NOI 2016 Batch 1086
paint N/A Tags: Greedy paint NOI 2011 Batch 570
levenshtein N/A Tags: Dynamic Programming levenshtein Classic problem Batch 113
helloworld N/A Tags: Syntax Hello World Classic problem Batch 1841
chocolate N/A Tags: Dynamic Programming chocolate Dunjudge Archive Batch 26
watching N/A Tags: Binary Search, Dynamic Programming watching JOI Open 2013 Batch 111
bottle N/A Tags: Dynamic Programming, Graph Theory, Trees Bottle Dunjudge Archive Batch 31
goinghome_agc N/A Tags: Data Structures, Greedy goinghome_agc AGC 023 Batch 41
ufo N/A Tags: Dynamic Programming ufo Dunjudge Archive Batch 9
radioactive N/A Tags: Divide and Conquer, Dynamic Programming radioactive NOI 2015 Batch 30
niangao N/A Tags: Data Structures Nian Gao 2020 CNY (errorgorn) Batch 9
excombo N/A Tags: Dynamic Programming, Greedy EX Combo RSA Fun Contest (oolimry) Batch 16
radiance N/A Tags: Square Root Decomposition radiance RSA Fun Contest (oolimry) Batch 15
hole N/A Tags: Binary Search, Dynamic Programming hole Dunjudge Archive Batch 42
collectmushrooms6 N/A Tags: Dynamic Programming CollectMushrooms NOI 2018 Batch 205
special N/A Tags: Dynamic Programming special Dunjudge Archive Batch 40
history N/A Tags: Dynamic Programming history Dunjudge Archive Batch 71
commonsubstring N/A Tags: Dynamic Programming commonsubstring Dunjudge Archive Batch 85
monopoly N/A Tags: Dynamic Programming monopoly Dunjudge Archive Batch 66
buffet N/A Tags: Dynamic Programming buffet Dunjudge Archive Batch 199
mate N/A Tags: Graph Theory mate RSA Fun Contest (errorgorn) Batch 29
girlfriends N/A Tags: Explicitly Excluded (from IOI), Math girlfriends (EE) CP Singles Day Contest 2020 (errorgorn) Batch 3
floors N/A Tags: Data Structures floors Dunjudge Archive Batch 170
inequality N/A Tags: Data Structures, Divide and Conquer, Dynamic Programming, Line Sweep/Sliding Window inequality RI-HCI NOI Selection Test 2020 (0rang3) Batch 11
catnames N/A Tags: Math catnames RI/RJC NOI Selection Test 2016 Batch 26
pokeadd N/A Tags: Math pokeadd Dunjudge Archive Batch 40
chessislands N/A Tags: Graph Theory chessislands NOI 2010 Selection Test Batch 123
primefactorization N/A Tags: Math primefactorization Dunjudge Archive Batch 243
papaya N/A Tags: Graph Theory papaya Dunjudge Archive Batch 112
amicablecats N/A Tags: Math, Syntax amicablecats Dunjudge Archive Batch 134
gcd N/A Tags: Math, Syntax Greatest Common Divisor Classic Problem Batch 983
pokenumbers N/A Tags: Math pokenumbers Dunjudge Archive Batch 43
exponentiate N/A Tags: Math Exponentiate Classic Problem Batch 475
nprime N/A Tags: Brute Force, Math Prime NOI 2008 Batch 420
mrt N/A Tags: Graph Theory MRT Dunjudge Archive Batch 277
dinowalk N/A Tags: Graph Theory dinowalk Classic Problem Batch 146
prime N/A Tags: Math Prime Numbers Classic Problem Batch 716
housing N/A Tags: Dynamic Programming housing NOI 2008 Batch 123
coincombinations N/A Tags: Dynamic Programming coincombinations Classic Problem Batch 209
republiccity N/A Tags: Graph Theory Republic City RI Nov Sel 2020 (JustAWallaby) Batch 27
stonk N/A Tags: Greedy Stonks Dec Trg 2019 (Elementary) (shenxy13) Batch 181
firelord N/A Tags: Dynamic Programming firelord RI Nov Sel 2020 (jiahng) Batch 61
coinbag N/A Tags: Dynamic Programming coinbag Dunjudge Archive Batch 251
potatotree N/A Tags: Data Structures potatotree RI Nov Sel 2020 (syy) Batch 215
dyingpolynomial N/A Tags: Binary Search Dying Polynomial RI Nov Sel 2020 (JustAWallaby) Batch 178
exam N/A Tags: Syntax Exam RI Nov Sel 2020 (syy) Batch 1410
gecko N/A Tags: Dynamic Programming gecko NOI 2008 Batch 392
pascal N/A Tags: Dynamic Programming, Math pascal Dunjudge Archive Batch 271
flybot N/A Tags: Dynamic Programming flybot Dunjudge Archive Batch 322
strawberry N/A Tags: Data Structures, Dynamic Programming Speedy Strawberries 2020 CNY (shenxy13) Batch 23
divisibility N/A Tags: Dynamic Programming divisibility Dunjudge Archive Batch 64
lcs N/A Tags: Dynamic Programming lcs Classic problem Batch 328
luckynumbers N/A Tags: Adhoc, Dynamic Programming Lucky Numbers Educational Round 8 (Goodbye oolimry) (oolimry) Batch 7
cardtrick N/A Tags: Data Structures Card Trick Classic Problem (oolimry) Batch 72
addition N/A Tags: Syntax Addition of 2 numbers Classic problem Batch 1575
general N/A Tags: Graph Theory general Classic Problem Batch 213
lis N/A Tags: Binary Search, Dynamic Programming Longest Increasing Subsequence Classic problem Batch 316
deathray N/A Tags: Data Structures deathray Dec Trg 2019 (Elementary) (shenxy13) Batch 85
pigeonnests N/A Tags: Data Structures, Graph Theory, Trees pigeonnests RSA Fun Contest (shenxy13) Batch 47
leftright N/A Tags: Data Structures Left and Right Dec Trg 2019 (Elementary) (oolimry) Batch 159
greeting N/A Tags: Syntax CNY Greetings 2020 CNY (errorgorn) Batch 521
doubletrouble N/A Tags: Data Structures, Greedy Double Trouble Dec Trg 2019 (Elementary) (oolimry) Batch 36
frisbee N/A Tags: Data Structures, Dynamic Programming, Slope Trick Frisbee Training 2019 IOI Problem Setter Contest (0rang3) Batch 10
mincross_usaco N/A Tags: Data Structures mincross_usaco USACO 2017 Feb, Platinum Batch 4