IWKR's profile

Name Ivan
School Raffles Institution
Role member
Country Singapore
View Submissions
Solved Problems
01knapsack 0405 1402 1402_2
1503 1609 1821 3nplus1
3nplus1II 4russians 4sum 7up
GSS OrXor SameMapInTheRpgWorld abbb
acorns addition addition2 addition3
addk adjacentswaps adjlist adjmatrix
alienalien aliens amicablecats ancestor
appeal applefarm appletree area
area_noi arrayfind arrayproblem assembly
atm attractions bacteria badnim
badpotato ballot bananafarm bananasmoothie
basement basketball beareatrabbit belittle
bestplace binarycoins binaryroads binaryspells
bingo binomial blackmagic blank
boardvision bobek bombing2 boundlessboxes
boxes_hkicpc boxhaskey boxispull bracketex
brackets bracketsyndrome breakfast brick
buffet build burgers buycoke
buycomputer buygifts buyingcandy candies
candles candyboxes candymountain_ex candyshop
car card cardtrick carpark
carrots casino catfight catleap
catlunch ccs celldivision change
cheerleaders chessislands chinese choochoo
chope christmasfeast cht clique
clocktower cny coinbag coincombinations
coinjourney coke cokelesssugar collectmushrooms
collectmushrooms2 collectmushrooms3 collectmushrooms5 collectmushrooms6
colour commando commonsubstring competition
conductslip conlang contestcalc convention
conversations conversations_easy convexhull cookieclickeralpha
cooperation countalp cowland cp2booksales
cuberoot cups deathray decayedbridges
deda defense101 deforestation deletingnumbers
deliveroo deque descsort devour
diamond digits dijkstra dinowalk
discharging dogmonkey dquery drones
duckduckgo ducktransport duckwander dyingpolynomial
eatcake eating eeducation eelimination
eeniemeenie eescapism eevacuation employee
entropy erp eta evenorodd
exam examinations exhibition exoticplants
experimentexplodeexpel explosion exponentiate exponentiate_ex
f7 factories feast fenwicktree
fenwicktree_easy fibo findinggrass_ex findingpavement
fireandbeary firstabc fitnesscorner fizzbuzz
flamethrower flamethrower_ex flip flipcards
floors flybot foodchain foreveralone
fractions friendlyrooks frog3 frogs
fruitsequences fuel funnynim garden
gcd gecko general generosity
gentlepairs gfriendmania gift globalwarming
gohcart goodseq goofyrooks goombatower
gotoschool gotoschool_ex grassplant greenbeans
greeting grid gridgame guanine
guards guards_ex guessproblem guessproblem2
guessproblem3 guessqueue gwynethandtree hacking
hamster1 harddisk hashcollision heatwv
hedgehogcrimes_easy hellokitty helloworld helloworld2
history homeworkextension housevisit housing
hungryrabbits1 hungryrabbits2 identifyinggirlfriends ihate1111
illuminate installingapps integralmania inversions
ippt iqtest iqtest2 iqtest3
jamestreet joke jumping2 justright
kfc knightmoves kthsubstring kusac
labels ladybugs lcm lcs
leave leftright lengthsort letters
letterstamper levenshtein lightningrod lineup
lineup2 lis lis_easy ljubomora
logs lol losingsleep lowelements
lps lratio lualectures luarulers
luckynumbers2 lunchbox lunchcombo lunchtime
lvm magicboard magiccarps magicspell
magicstring magicwand makingparallelograms malcolm
management mandarins manyjobs mathexam
mathtest maxavg maximum maximumtriangle
medianheap medianstring mememagic mergeguessproblem
mice milkweed minimum mining
minstack missingnumber modules modulochain
moneychanger monopoly monsters motest
motest2 mothertounge motivation mountainbridges
mountains movingbasement mrt mugger
neckties nemo network2 nevergiveup
newjeans nextprime nicenumber nihonese
nis nonboringsequences noodlestore nostatement
nou nprime numberfun numbergame
numbers numericalstrings omnomnom omnomnom2
oranges2 orchard packaging paint
pairs pairsums palindromicfizzbuzz pandacity
pandaeyes papaya parade parallelogramisation
party party_noi pascal payraise
peakfinding penguinfood penguingathering penguinmountain
perfectprimes picnic pigeonhole pigeons
ping pipes pizzeria playlist
poi pokeadd pokenumbers poklon
police potatosalad potatotree potionseasy
potionshard powervillage pplow prefixsums
prime primefactorization primepie problematicjourney
problemsetter promotion psle purplecandy
pushups qualityinspections rabbiteatrabbit rabbitmeeting
race railway rainbowrabbit rank
razlika rblock reachability reading
reciprocals repairs replacedigits replacingpavement
restaurant rightangtri rmaxq roadtrip
rootedlca rotarylock routers routine
runway sailor samelength sandcity
sandd sawmills scalars seagame
sealevel segmenttree segmenttree2 semiconnected
sequence_apio shortest sightseeing simcity
simp simplebridges singlefile singleflip
skillmoves slimes smallprimes smallprimes_ex
smurf smurfpaths snack snail
snakecode snapknack sniper snowball
socks solonim sonictheparallelogram sort
sortingtrainers sos speakers spellofweakness
split2 splithunny square_ioi squidzofrenzic
staircase stamps stepgame sterilizing
stickytape stoning stonk stories
strikes stringsofimpurity subgraphs subsetmex
subtaskstitching sumint summarising2020 summarising2023
summit sunshine supplies swapsort
swayingflowers swords taxcollection telepathy
telephone teleporting tickethandling timeexam
toblerone topical tourist_noi towerdefense
train train_ex traineeline trains
transform travel treepruning treepruning2
trivialexam_ex_ex twomeals typicalstairs typo
ultimateifelse uniquenumbers universe vainish
variety verticallychallenged veryeasyproblem wabbit
wabot watching waterbottles weddingcoins
whackamole woodcutter workload workoutplan
wormholes xmas xorb xuehuapiaopiao
zanesletters zooqueue