kxd's profile

Name Cai Qiyao
School NUS High
Role member
Country Singapore
View Submissions
Solved Problems
01knapsack 1111galpassword 1402 1503
1609 1821 3nplus1 3nplus1II
4russians 4sum 727 7up
GSS NYSport WA1 abbb
abcs acorns addition addition2
addition3 addk addone adjacentswaps
adjlist adjmatrix adventure aircon
alienalien amicablecats ancestor appeal
applefarm area area_noi arrayfind
arraypartition arrayproblem assembly assistance
bacteria badnim badpotato ballot
bananafarm bananasmoothie bank basement
basketball beareatrabbit belittle bestplace
bftrouble binarycoins binaryroads binaryspells
bingo blackmagic blanko boardvision
bobek bookshelf boring bosses
bosubaiko boundlessboxes boxispull bracketex
brackets bracketscore bracketsyndrome breakfast
brick buffet burger burgers
buycoke buycomputer buygifts buyingcandy
candies candies2 candles candymountain_ex
candyshop car card cardtrick
carpark carrots casino catchingcheaters
catfight catleap catlunch ccs
celldivision centroid change charges
cheerleaders chessislands chinese choochoo
choose2eat1 choosingcandies chope christmasfeast
christmastree christmaxtrees cht chunlian
clique clocktower closedpath closedrooms
closingshop cny coinbag coincombinations
coinjourney coke cokelesssugar collectmushrooms
collectmushrooms2 collectmushrooms5 collectmushrooms6 colourfulpaths
commando commonsubstring competition compleecode
conlang construct contestcalc convention
conversations conversations_easy convexhull cookie
cookieclickeralpha countalp cowland createnumber
cringemeter crypto cuberoot cups
deathray decayedbridges deda defense101
deforestation deletingnumbers democracy deque
descsort devour diamond differencearray
digits dijkstra dinowalk divideby2
divisibility dna_ioi dogmonkey doll_noi
doubletrouble dquery duckduckgo duckeatduck
ducktransport duckwander dyingpolynomial dynamicdag
eating eeducation eelimination eeniemeenie
eescapism eevacuation eexploration eight
election employee entropy entropy2
erp eta evenorodd exam
examinations exhibition explosion explosives
exponentiate exponentiate_ex f7 factorial
factorial_easy feast feedtheduck feelgood
fenwicktree fenwicktree_easy fibo fibo_easy
figurines findingpavement findmultiple fireandbeary
firecracker firelord firstabc fitnesscorner
fizzbuzz flamethrower flappyrabbit flights
flipcards floors flowering flybot
foodchain foreveralone fourbuckets fractions
fraud friend frogs fruits
fruitsequences fuel gcd gecko
general generosity gentlepairs gfriendmania
gift givinggifts globalwarming glottalstops
gohcart goodbye goodchef goodgame
goodprogrammer goodseq goofyrooks goombatower
gotoschool gotoschool_ex gotosleep graphcraft
grassplant gravity greenbeans greeting
grid gridgame guanine guards_ex
guessqueue gymbadges hacking hamster1
harddisk hashcollision heatwv hedgehogcrimes_easy
hellokitty helloworld helloworld2 history
homeworkextension hoofpaperscissor housing hungryrabbits1
hungryrabbits2 identifyinggirlfriends ihate1111 illuminate
imagination indivisibility inheritance installingapps
integralmania inversioncounting inversions ippt
iqtest3 jamestreet justright kfc
knapsack knightmoves koopatroopacave kthsubstring
kusac labels ladybugs laptop
lasers lazycat lboard lcm
lcs leave leftright lengthsort
letters letterstamper levelingup levenshtein
lightningrod lineup lineup2 lis
lis_easy ljll ljubomora localexpress
logs lol losingsleep lostarray
lowelements lps lualectures luarulers
luckynumbers2 lunchbox lunchcombo lunchtime
lvm magiccarps magicstring magicwand
makingparallelograms management mandarins manyjobs
math mathclass mathtest maxavg
maximum maximumtriangle medianheap medianstring
mergeguessproblem milkweed mindeque minimise
minimum minstack missingnumber modsum
modulochain moneychanger monopoly monsters
morepaths mothertounge motivation mountain
mountains mrt mushroomfarm neckties
nemo network nextprime nicenumber
nihonese nis nonboringsequences noodlestore
notebook nou nprime numberfun
numbergame numbers numberspiral numericalstrings
ny_mathexam ny_unwind nycheer nylunchtime
obstacles obstacletree oddoneout omnomnom
omnomnom2 ontheedge optimalsubseq optmilk
oranges2 orchard oridance orz
paint pairs pairsums palindromicfizzbuzz
pancake pandacity pandaeyes papaya
parallelogramisation park party party_noi
pascal payraise peakfinding peddler
peepeepoopoo penguinfood penguingathering penguinmountain
perfectprimes permutationgrid photo picnic
pigeonhole pigeonnests pigeons pilot
ping pizzeria plantingpotatoes2 playlist
poi pokeadd pokenumbers poklon
potatosalad potatosqueues potatotree potionseasy
potionshard powervillage prefixsums prime
primeage primefactorization primepie primesort
problematicjourney problemsetter progressionspells psle
purplecandy pushups pythonindentation qualitytime
queuecutting quillvsowl rabbiteatrabbit race
railway rainbowrabbit rangedeleting rank
raptorinc razlika rblock reading
reciprocals rectangleoutline redblacktree replacedigits
restaurant reverseandmin rightangtri rmaxq
roadsideadverts roots rotarylock routers
routine rubies runway sadtrainer
sadtrainer2 samelength sandcity sandd
scalars scanner sealevel seats2
segmenttree segmenttree2 sellingpotatoes september
shamelessad shamelessad2 shops shortest
shuttlerun sightseeing sightseeing2 simcity
simp simplebridges simplemath2 singlefile
singleflip skillmoves slimes smallprimes
smurf snack snail snapknack
sniper snowball socks solonim
sonictheparallelogram sort sortingtrainers sos
speakers specialgirlfriends spellofweakness spiraldance
splithunny squidzofrenzic stackweights staircase
stamps stepgame sterilizing stickytape
stones stonk stories strangedevice
strikes stringsofimpurity subgraphs subtaskstitching
sudoku2 sumint summarising2020 summit
sumofdigits sumsumdigit supermarket supplies
swapsort swayingflowers swimming swords
taxcollection telepathy telephone teleporting
thedarknight tickethandling timeexam topical
tourism tourist_noi towerdefense towers
train traineeline trains transform
travel treecutting treepruning trivialexam_ex_ex
trollingbribritt twomeals typicalstairs typo
typoswap ultimateifelse umbrella uniquenumbers
universe unluckyfloors unmerge vainish
variety verticallychallenged veryeasymath veryeasyproblem
volcanic wabbit wabot walking
warp watching waterbomb waterbottles
waterbottles2 weddingcoins whackamole whoatethefries
wires workload workoutplan wormholes
wronganswer xmas xorb xuehuapiaopiao
yaleuniversity yayornay zanesletters zooqueue