penguin133's profile

Name Brian Lee Jun Siang
School Hwa Chong Institution (Graduated)
Role admin
Country Singapore
View Submissions
Solved Problems
01knapsack 0405 1402 1402_2
1503 1609 1821 3nplus1
3nplus1II 4cuts 4russians 4sum
727 7up GSS NYCanteen
NYSSW_easy NYTrainers OrXor Pickaxe
SameMapInTheRpgWorld Unbalanced abbb abc_apio23
acorns add1 add1_easy addition
addition2 addition3 addk addone
adjacentswaps adjlist adjmatrix aircon
airplane alienalien aliens alphabrackets
amicablecats ancestor ants anutforajaroftuna
aoi_fft aoi_umbrella appeal applefarm
appletree arcwrecker2 area area_noi
armpit arrangetoys arrayfind arraypartition
arrayproblem artswap askonegetonefree assembly
assignpaths atleasttripledate atm attention
attractions bacteria badchef badknapsack
badnim badpotato badtree ballgame
ballot ballsofbuma bananadance bananafarm
bananafever bananaland bananasmoothie bank
basement baseplans baseplans_ex basketball
basketball_cpic beacon beareatrabbit beautifulbrackets
becomingred belittle berlandtaxi bestplace
bigbinarytree binarycoins binaryroads binaryspells
bingo binomial birthday bizarrebuffet
blackmagic blank blanko boardvision
bobek bombing bombing2 bookshelf
boomerangs bore boring bosses
bosubaiko bottle boundedpermutation boundlessboxes
boxes boxes2 boxes_hkicpc boxhaskey
boxispull bracketcoloring bracketex brackets
bracketscore bracketsuperseq bracketsyndrome breakfast
brick bubblesort buffet build
buildings bunchlocks bunnyscore burger
burgers buycoke buycomputer buygifts
buyingcandy cake cake3 cakerun
camels candies candies2 candies_joi
candles candyboxes candycrush candymountain_ex
candyshop car card cardgame
cardgame2 cards cardtrick carpark
carrots cashmoney casino catchingcheaters
catfight catgameshow catleap catlunch
catnames catteams cave ccs
celldivision centroid change changingcolours
charges cheerleaders chemistry chess
chessislands chickensoup chimera chinese
chocolate choochoo chope christmasfeast
christmasturkeyfarm christmaxtrees cht chunlian
cinema cipele clearingleaves climatechange
clipboard clique clockpalindrome clocktower
closedpath closedrooms closingshop cloudcomputing
cny coinbag coincombinations coingame
coinjourney coins coke cokelesssugar
cokemoresugar collaboration collectmushrooms collectmushrooms2
collectmushrooms3 collectmushrooms4 collectmushrooms5 collectmushrooms6
colorgraph colour colourblind colouring
colourwalk combo commando commonsubstring
compact competition competitiveteams conductslip
conlang construct container contestcalc
convention conversations conversations_easy convexhull
cookieclickeralpha copyandpaste corporate countalp
countingagain couples cousin cowland
cp2booksales crab createnumber cringemeter
cross crypto cuberoot cudak
cups curtains cyberland_apio23 cycling
datacenters deathray decayedbridges deciphering_zane
deciphering_zane_4 deciphering_zane_ex deda deforestation
delegation deletingnumbers deliveroo delivery
deque descsort destroy devour
diamond dice digits digitsum
dijkstra dinowalk discharging distribution
divisibility divsum divsum_dec18 dkdk
dna dna_ioi dogmonkey doll_noi
domine doors dotjoin doubleflip
doubletrip doubletrouble downbad dquery
drama dreaming drones duckduckgo
ducknuggetconvention ducktransport duckwalk duckwander
duckwar duels dyingpolynomial dynamicdag
dynamicdiameter dzumbus eatcake eating
eatingparallelograms edgeflip eeducation eelimination
eeniemeenie eescapism eevacuation eexploration
election election_joi22 employee entropy
entropy2 equals erp escalation
eta evenorodd everyonewinstherace exam
examinations examstress2 exhibition exoticplants
experimentexplodeexpel explosion explosives exponentiate
exponentiate_ex expressways f7 fabric
factories familytree feast feedthewallabies
feelgood fencing fenwicktree fenwicktree_easy
ferries fertile fibble fibo
figurines findandprevent findinggf findinggrass
findinggrass_ex findingpavement fireandbeary firecracker
firelord firstabc fitnesscorner fizzbuzz
flamethrower flamethrower_ex flappyrabbit flights
flip flipcards flipthat flood
flooding floors flowering flybot
foodchain football foreveralone forkintheroad
fortunetelling fourbuckets fractional_knapsack fractionalmultiset
fractions fraud friendlyrooks frog3
frogs fruits fruitsequences fsylll
fuel fuelstation funfair funnynim
galaxycollapse gap garaza garden
garden_ioi05 garden_ioi08 gcd gecko
general generosity gentlepairs gerrymandering
gfriendtree gift girlfriend globalwarming
globalwarming_ceoi globalwarming_ex gohcart goinghome_agc
goodgame goodmorning goodprogrammer goodseq
goofyrooks gotoschool gotoschool_ex gotoubun
graph graphcraft graphoverflow grassplant
gravity grazing greenbeans greeting
grid gridgame growingtrees guanine
guards guards_easy guards_ex guessarray
guessproblem guessproblem2 guessproblem3 guessqueue
gwynethandtree gymbadges hacker hacking
hackingscores hackthectf hamster1 happyarrays
harddisk harmony hashcollision hdb
heatwv hedgehogcrimes_easy hellokitty helloworld
helloworld2 hipercijevi historical history
hld hld2 holdinghands hole
holeetree homeworkextension hoofpaperscissor horses
hotelhunt hotspot housevisit housing
humantrafficking hungrycats hungryrabbits1 hungryrabbits2
hungryrabbits3 hunter hunterxhunter hurt
identifyinggirlfriends ihate1111 illuminate index
indivisibility inequality2 inequality3 infiniteloop
infiniteseq infinitezoo inheritance inspections
installingapps integralmania intercastellar interestring
invasion inversemax inversions ippt
iqtest iqtest2 iqtest3 island
island_boi ispit itinerary jamestreet
jams jjooii2 joke journey3
judgequeue jumper jumping2 jumpontree
jumps justright kas kfc
kickingshoes killanton knapsack knightmoves
koopatroopacave kronican kthsubstring ktupleflip
kusac labels ladybugs lambsrespite
lampposts lamps laptop lasers
laughter lazycat lboard lcm
lcs learning leastround leave
leftright legowall lemmas lemonadestand
lengthsort letters letterstamper letterstamper_ex
levelingup levenshtein lfs lightningrod
lightsflip lightsout lineup lineup2
lis lis_easy ljll ljubomora
llis localexpress logs lol
lonelybeavers lopov losingsleep lostarray
lottery lowelements lppfnlcst lps
lratio lualectures luarulers luckynumbers2
lunchbox lunchcombo lunchtime lvm
magicboard magiccarps magicspell magicstring
magicwand makingparallelograms malcolm mamamintaplusa
management mandarins manycolours manyjobs
marathon marathon_usaco markinghouses mate
math mathclass mathtest matsuri
maxavg maximum maximummonogonosity maximumtriangle
medianheap medianontree medianstring melons_joig
meltylandnightmare mememagic merchant merchant2
merchant_o mercurypoisoning mergecards mice
midas milkweed mincross_usaco minimetro
minimise minimum mining minstack
mirrors missingnumber modsum modules
modulochain molecules moneychanger monopoly
monsters monsters2 moosic more_lca
more_lca2 morepaths motest motest2
motest3 motivation mountainbridges mountainrange
mountains movingbasement movingboxes mrbeancurd
mrbeast mrt mrt2 mugger
multipaths multiple mushroomfarm naptime
neckties nemo network network2
nevergiveup newjeans newlottery nextprime
nicenumber nihonese nis nombor
nonboringsequences noodlestore nostatement notebook
notimetodry nou nprime nprime2
numberfun numbergame numbers numericalstrings
nuskevsphantom nutritionist nypromo obstacles
obstacletree omnomnom omnomnom2 ontheedge
openingshop optimalsubseq optmilk orangecollector
orangeroad oranges2 orchard orchard2
oridance orlando osumnjiceni outing
packaging packingducks packingpests padoru
paint paint_apio paint_ioi paintrectangles
pairofballs pairs pairsums palindromicfever
palindromicfizzbuzz pancake pandacity pandaeyes
pandanumbers pandasoldiers panicbutton papaya
parade parallelogramfest parallelogramisation park
partitiongame party party_noi pascal
password passwords pavement payraise
peakfinding peddler pekora penghulu
penguinfood penguingathering penguinislands penguinmountain
perfectprimes performance personalspace photo
photo_nyoi picnic pigeonhole pigeonnests
pigeons pillars pilot ping
pipes pizzeria placingrouters plagia
planning plantingpotatoes ples poi
pokeadd pokenumbers poklon police
polyomino portals postcard potatoqueue
potatosalad potatotree potionseasy potionshard
power powervillage pplow prefixgcd
prefixsums pressstart prime primefactorization
primepie primesort prisoners problematicjourney
progression progressionspells promotion psle
purplecandy pushups puttingstrings pythonindentation
quality qualityinspections qualitytime queuecutting
quillvsowl rabbitbars rabbitbridges rabbiteatrabbit
rabbitlineup rabbitmeeting rabbitmilk rabbitpainting
rabbitplane rabbitradar rabbitroad rabbittolls
race radiance radioactive railway
rainbowfish rainbowrabbit rainbowroad rainbowroad_ex
rangedeleting ranges rank rarsum
rarwall ratar rating razlika
rblock rbpoints reachability reading
reciprocals rectangleoutline redblacktree relaymarathon
removalcosts removeedges removeelements removemq
reopening repairs replacedigits replacingpavement
republiccity restaurant restoreroad reverseandmin
rhythmscore riggedroads rightangtri rmaxq
rmq roadsideadverts roadtrip robobear
robot robot2 robots robots2
rollercoaster rolling rookable rooms
rootedlca roots rotarylock routers
routes routine royalguards rubies
runway rushing safety sailor
sale samelength sandcity sandd
sardines sawmills scalars scanner
schedule scrivener sculptures_apio15 seagame
sealevel secret segmentoperations segmenttree
segmenttree2 segmenttreebeats selectingintervals selfdefence
selfpermutation selfstudy semiconnected sequence
sequence_apio sequences shamelessad shamelessad4
sherlockinversions shikandgame shoes shoop
shopping shorten shortest shuttlerun
sightseeing sightseeing2 simcity simp
simplebridges simpletask singlefile singleflip
skillmoves skyline skyscraper_apio15 slimes
smallprimes smallprimes_ex smurf smurfberries
smurfpaths snack snail snakecode
snakenladder snakesnack snakesnack2 snapknack
sniper snowball snowcow snukethewizard
socks solarstorm solonim sonya
soos sort sortbooks sortingtrainers
sos souvenirs2 spaceinvaders speakers
special specialgirlfriends specialmultiset spellofweakness
spiderweb spiraldance split2 splithunny
splittingpower spotlights spy square_ioi
squidzofrenzic ssw stackweights stagegames_part1
staircase stamps stepgame sterilizing
stickytape stones stoningame stonk
stories straight strangedevice strawberry
streakmanipulation streets strikes stringsofimpurity
subgraphs subknapsack subsetmex subtaskstitching
subwaytrip sumint summarising2020 summarizing2021
summit sumo sumstack sumzero
sunshine superfanclub supermarket supertrees
supperbox supplies swapsort swayingflowers
swimming switches2 swords taxcollection
tears telepathy telephone teleporting
thanossort thanossort_st4 threetwentyoneam thunderstorm
tickethandling tiles timeexam toblerone
toll topical tour tourism
tourist tourist_noi towerdefense towers
train train_ex traineeline trains
trains_mco transform trapezes trashinteractive
travel treecutting treepruning treepruning2
trekking trianglecraft triangles trianglesum
triusis trivialexam trivialexam_ex_ex trivialmaths
troubles twice twicetwice twomeals
typicalstairs typo ultimateifelse umbrella
uniquenumbers uniquepath unitedcows universe
unluckyfloors unmerge vainish variety
verticallychallenged veryeasyproblem visiting visitinggf
visitingsingapore visitor2 volcanic voting
votingcities vouchers wabbit wabbitosu
wabot walking wall wallabyhop
warp warp2 watching waterbottles
waterbottles3 weddingcoins weightedguess wires
woodcutter workload workoutplan wormholes
xmas xorb xuehuapiaopiao youngmaids
youtubealgo zamjena zanesgift zanesletters
zoo zooqueue