penguin133's profile

Name Brian Lee Jun Siang
School Hwa Chong Institution
Role admin
Country Singapore
View Submissions
Solved Problems
01knapsack 0405 1402 1503
1609 1821 3nplus1 3nplus1II
4cuts 4russians 4sum 727
7up GSS abbb acorns
addition addition2 addk addone
adjacentswaps adjlist adjmatrix aircon
aliens amicablecats ancestor ants
anutforajaroftuna appeal applefarm appletree
area armpit arrayfind arraypartition
arrayproblem artswap assembly assignpaths
atm bacteria badchef badknapsack
badnim badpotato badtree ballgame
ballot ballsofbuma bananadance bananafarm
bananafever bananasmoothie bank baseplans
baseplans_ex basketball beacon beareatrabbit
beautifulbrackets becomingred belittle berlandtaxi
bestplace bigbinarytree binarycoins binaryroads
bingo binomial blanko bobek
bombing bombing2 bookshelf boomerangs
boring bosses bosubaiko bottle
boundedpermutation boundlessboxes boxes_hkicpc boxhaskey
boxispull bracketcoloring bracketex brackets
bracketscore bracketsuperseq bracketsyndrome brick
bubblesort buffet build buildings
bunchlocks bunnyscore burger buycoke
buycomputer buygifts cake cakerun
camels candies candies2 candies_joi
candyboxes candymountain_ex candyshop car
card cardgame cardgame2 cards
cardtrick carpark carrots cashmoney
catchingcheaters catfight catgameshow catleap
catlunch catnames catteams cave
ccs celldivision centroid change
charges cheerleaders chemistry chessislands
chinese chocolate choochoo christmasfeast
christmaxtrees chunlian cipele climatechange
clipboard clique clockpalindrome clocktower
closedpath closedrooms closingshop coinbag
coincombinations coingame coinjourney coke
collectmushrooms collectmushrooms2 collectmushrooms3 collectmushrooms4
collectmushrooms5 collectmushrooms6 colorgraph colour
colouring colourwalk combo commando
commonsubstring compact competition competitiveteams
construct container contestcalc convention
conversations conversations_easy convexhull cookieclickeralpha
copyandpaste countalp countingagain cousin
cowland cp2booksales crypto cuberoot
cudak cups cycling datacenters
deathray decayedbridges deda delegation
deletingnumbers deliveroo delivery deque
descsort diamond dice digits
dijkstra dinowalk discharging distribution
divisibility divsum divsum_dec18 dna
dna_ioi dogmonkey domine dotjoin
doubleflip doubletrip doubletrouble dquery
dreaming drones duckduckgo ducknuggetconvention
duckwalk duckwander duckwar duels
dyingpolynomial dynamicdiameter eatcake eating
edgeflip eeducation eelimination eescapism
eevacuation eexploration election election_joi22
employee entropy entropy2 equals
erp evenorodd exam examinations
exhibition exoticplants explosion exponentiate
exponentiate_ex f7 factories feast
feedthewallabies feelgood fencing fenwicktree
ferries fertile fibo findandprevent
findinggrass fireandbeary firecracker firelord
fizzbuzz flamethrower flappyrabbit flights
flipthat flood flooding floors
flowering flybot foodchain football
foreveralone forkintheroad fortunetelling fourbuckets
fractionalmultiset fractions fraud friendlyrooks
frog3 frogs fruits fruitsequences
fuel fuelstation funfair funnynim
gap garden garden_ioi05 garden_ioi08
gcd gecko general generosity
gerrymandering gift girlfriend globalwarming
globalwarming_ceoi globalwarming_ex gohcart goinghome_agc
goodgame goodmorning goodseq gotoschool
gotoubun graph graphcraft grassplant
grazing greenbeans greeting grid
gridgame growingtrees guanine guards
guards_ex guessarray guessproblem guessqueue
gwynethandtree gymbadges hacker hacking
hamster1 happyarrays harddisk harmony
hashcollision hdb heatwv hedgehogcrimes_easy
hellokitty helloworld helloworld2 hipercijevi
history hld hld2 hole
holeetree homeworkextension hoofpaperscissor horses
hotspot housevisit housing hungryrabbits1
hungryrabbits2 hungryrabbits3 hunter ihate1111
illuminate index indivisibility inequality2
inequality3 infiniteloop infiniteseq infinitezoo
inheritance installingapps intercastellar interestring
inversemax inversions iqtest iqtest2
iqtest3 ispit jams jjooii2
joke journey3 judgequeue jumper
jumping2 jumpontree jumps justright
kfc kickingshoes killanton knapsack
knightmoves kronican kthsubstring ktupleflip
kusac labels ladybugs lambsrespite
lampposts lamps lasers lazycat
lboard lcm lcs leastround
leave leftright legowall lemmas
lemonadestand lengthsort letters letterstamper
letterstamper_ex levelingup levenshtein lfs
lightningrod lightsflip lineup lineup2
lis lis_easy ljll ljubomora
llis localexpress logs lol
lopov lostarray lppfnlcst lps
lratio lualectures luarulers luckynumbers2
lunchbox lunchcombo lvm magicwand
malcolm mamamintaplusa management mandarins
manycolours marathon_usaco markinghouses mate
math mathtest maximum medianheap
medianstring mememagic merchant2 merchant_o
mercurypoisoning mice milkweed mincross_usaco
minimetro minimum mining minstack
modsum modules modulochain molecules
moneychanger monopoly moosic more_lca
more_lca2 mountainrange mountains movingboxes
mrbeancurd mrt mugger multipaths
multiple mushroomfarm naptime neckties
nemo network2 newjeans nicenumber
nihonese nis nonboringsequences nostatement
notebook notimetodry nou nprime
numberfun numbergame numbers numericalstrings
obstacles obstacletree omnomnom omnomnom2
openingshop optimalsubseq optmilk orangecollector
orangeroad oranges2 orchard orchard2
oridance osumnjiceni outing packaging
packingpests padoru paint paintrectangles
pairs pairsums palindromicfever palindromicfizzbuzz
pancake pandacity pandaeyes papaya
parade partitiongame party pascal
passwords pavement payraise peakfinding
peddler pekora penguinfood penguinislands
perfectprimes performance personalspace picnic
pigeonhole pigeonnests pigeons pillars
pilot ping pipes pizzeria
placingrouters plagia planning ples
poi pokeadd pokenumbers poklon
police portals postcard potatoqueue
potatosalad potatotree potionseasy potionshard
power prefixgcd prefixsums pressstart
prime primefactorization primepie primesort
problematicjourney progression promotion psle
purplecandy pushups puttingstrings pythonindentation
quillvsowl rabbitbars rabbitbridges rabbiteatrabbit
rabbitlineup rabbitmeeting rabbitmilk rabbitpainting
rabbitplane rabbitradar rabbitroad rabbittolls
race radioactive railway rainbowrabbit
rainbowroad rainbowroad_ex rangedeleting rank
rarsum ratar rating razlika
rblock rbpoints reachability reading
reciprocals rectangleoutline redblacktree relaymarathon
removalcosts removeelements removemq reopening
repairs replacedigits republiccity restaurant
restoreroad riggedroads rightangtri rmaxq
rmq roadsideadverts robobear robot
robots rolling rootedlca rotarylock
routers routes routine royalguards
rubies runway safety sailor
sale samelength sandcity sandd
sardines sawmills scalars scanner
schedule sealevel segmentoperations segmenttree
segmenttree2 selectingintervals selfpermutation selfstudy
sequence sequence_apio sherlockinversions shikandgame
shoes shortest sightseeing sightseeing2
simcity simp simpletask singlefile
singleflip skillmoves skyline smallprimes
smallprimes_ex smurf smurfberries smurfpaths
snack snail snakecode snakenladder
snakesnack snakesnack2 snapknack snowball
snowcow snukethewizard socks solarstorm
solonim sonya sort sortbooks
souvenirs2 spaceinvaders speakers special
specialmultiset spellofweakness spiderweb split2
splithunny spy square_ioi squidzofrenzic
stackweights stamps stepgame sterilizing
stickytape stones stoningame stonk
stories straight strawberry stringsofimpurity
subgraphs subknapsack subsetmex subtaskstitching
sumint summarising2020 summarizing2021 summit
sumo sumzero supermarket supertrees
supplies swapsort swayingflowers swimming
taxcollection telepathy telephone thanossort
thanossort_st4 thunderstorm tiles timeexam
toblerone toll tour tourist
towerdefense towers train train_ex
trains trains_mco transform travel
treecutting treepruning treepruning2 trekking
trianglesum triusis troubles twomeals
typicalstairs typo ultimateifelse umbrella
uniquenumbers uniquepath unitedcows universe
unluckyfloors unmerge vainish variety
veryeasyproblem visitingsingapore volcanic voting
votingcities vouchers wabbit wabbitosu
wabot walking wallabyhop warp
watching weddingcoins wires woodcutter
workload workoutplan wormholes xmas
xorb youngmaids zamjena zooqueue