hmm's profile

Name Ding Chenghao
School NUS High School
Role admin
Country Singapore
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Solved Problems
01knapsack 0405 1609 1821
3nplus1 3nplus1II 4russians 4sum
727 7up GSS UCFJ
abbb acorns addition addition2
addition3 addk adjlist adjmatrix
aircon airplane alienalien amicablecats
ancestor animaleditor ants anutforajaroftuna
applefarm appletree archaeologist area
area_noi armpit arrayfind arraygraph
arraypartition arrayproblem assembly atm
attention attractions bacteria badnim
badpotato badtree ballgame ballot
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banks basement basketball battleship
beareatrabbit becomingred belittle bestplace
bigbinarytree binarycoins binarylock binaryroads
binaryspells bingeeating bizarrebuffet blanko
bobek bombing2 bookshelf bossbattle
bosses boundedpermutation boundlessboxes boxes2
boxes_hkicpc boxhaskey boxinbox boxispull
bracketex brackets bracketscore bracketsyndrome
brainrot breakfast brick bridge_apio15
bubblesort buffet bunnyscore burger
buycoke buycomputer buygifts buyingcandy
cake cake3 cakerun camels
candies candies_joi candyboxes candymountain_ex
candyshop car card cards
carpark carrots catchingcheaters catdog
catfight catleap catlunch ccs
charges cheerleaders chessislands childsetter3
childvschild chinese choochoo christmasfeast
christmasfiboseq christmastree christmasturkeyfarm christmaxtrees
cht chunlian cinema clique
clocktower closedpath closedrooms closingshop
cny coinbag coincombinations coinjourney
coke cokelesssugar collaboration collectmushrooms
collectmushrooms2 collectmushrooms3 collectmushrooms4 collectmushrooms5
collectmushrooms6 commando commonsubstring competition
conductslip conlang construct container
contestcalc conversations conversations_easy convexhull
cookie cookieclickeralpha coprimecodependence countalp
countingagain couples coupons cousin
cowland crab crypto cuberoot
cudak cups curtains deathray
deda defense101 deliveroo delivery
deque descsort destroy diamond
dice differencearray digits dijkstra
dinowalk discharging divisibility dna
doll_noi dotjoin doubleflip dquery
dreaming drones duathlon duckduckgo
duckhunt3 duckhunt6 duckhunt8 ducknuggetconvention
duckwander duckwar dyingpolynomial eatcake
eating eeducation eelimination eescapism
eevacuation election employee entropy
entropy2 erp escalation eta
evenorodd evolution exam examinations
exhibition explosion explosives exponentiate
exponentiate_ex f7 fabric factories
fakeidol familytree feast feedthewallabies
feelgood fenwicktree ferries fertile
fibo figurines findandprevent findinggrass
fireandbeary firefighting firelord fitnesscorner
fizzbuzz flamethrower flappyrabbit flights
flipthat floors flybot foodchain
football foreveralone fortunetelling fourbuckets
fractions fraud frog3 frogs
fruits fuel fuelstation funfair
funnyhat galaxycollapse gap garden
gcd gecko general generosity
gerrymandering gfriendmania gfriendtree giantduck
gift giselle globalwarming globalwarming_ceoi
gohcart goodprogrammer goodseq goombatower
gotoschool gotoubun graph graphcraft
grassplant greatmerge greenbeans greeting
grid gridgame growingtrees guanine
guards guards_easy guards_ex guessproblem
guessqueue gwynethandtree gymbadges hacking
hackinggate hamster1 happyarrays harddisk
hashcollision heatwv hedgehogcrimes_easy helloworld
helloworld2 history hld hld2
hole holiday homeworkextension hoofpaperscissor
hop housevisit housing hungryrabbits1
hungryrabbits2 hunter hurt ihate1111
illuminate inequality2 inheritance inspections
installingapps integralmania inversemax inversions
ippt iqtest iqtest3 jamestreet
jams jjooii2 journey3 jumping2
jumpontree justright karina kas
kfc kickingshoes knightmoves koopatroopacave
kucice labels ladybugs lasers
latex laughter lazycat lboard
lcm lcs leave leftright
lemmas lengthsort letters letterstamper
letterstamper_ex levelingup levenshtein lfs
lightningrod lineup lineup2 lis
lis_easy ljll ljubomora llis
localexpress logs lol lonelybeavers
lopov lostarray love lppfnlcst
lps lratio lualectures luarulers
lunchbox lunchcombo lvm magicboard
magiccarps magicspell magicstring magicwand
mamamintaplusa management mandarins manycolours
mate matsuri maximum maximummonogonosity
maximumtriangle medianheap medianontree medianstring
mememagic merchant messages mice
milkweed minimetro minimum mining
minstack modules modulochain moneychanger
mononono monopoly more_lca more_lca2
morexiaoyang motest motest2 motest3
motivation mountain mountainrange mountains
mrbeast mrt mugger mulgogi
multipaths multiplechoice naan naptime
neckties nemo network newjeans
nian nicenumber nihonese ningning
nis nombor nonboringsequences nostatement
nprime numberfun numbergame numbers
obstacles obstacletree omnomnom omnomnom2
openingshop optmilk orangecollector orangeroad
oranges2 orchard oridance osumnjiceni
outing packingducks packingpests padoru
paint pairs pairsums palindromicfizzbuzz
pandacity pandaeyes pandanumbers papaya
parade park partitiongame party
party_noi pascal pavement payraise
peakfinding peddler penguinfood penguinislands
perfectprimes photo physics picnic
pigeonhole pigeonnests pigeons pilot
ping pipes pizzeria placingrouters
planning plantingpotatoes playlist poi
poklon police potatosalad potatotree
power pplow prefixgcd prefixsums
prime primefactorization primesort problematicjourney
problemsetter problemsetter2 progression progressionspells
promotion psle purplecandy pushups
pythonindentation qualitytime quillvsowl rabbitbars
rabbiteatrabbit rabbitpainting rabbitroad race
railway rainbowrabbit rainbowroad rainbowroad_ex
rarsum razlika rblock reachability
reading reciprocals rectangleoutline redblacktree
relaymarathon removalcosts reopening repairs
replacedigits replacingpavement restaurant riggedroads
rightangtri rmaxq rmq roadsideadverts
roadtrip robobear robotbombs robots
rolling rootedlca rotarylock routers
routine royalguards rubies runway
safety sailor sana sandd
sawmills scalars scanner sculptures_apio15
sealevel segmentoperations segmenttree segmenttree2
segmenttree3 selectingintervals selfpermutation semiconnected
sequence_apio shamelessad2 sherlockinversions shikandgame
shoop shops shortest shuttlerun
sightseeing sightseeing2 simcity simp
simplebridges simpletask singlefile singleflip
skibuddy skillmoves skyline skyscraper_apio15
smallprimes smurf smurfpaths snack
snakenladder snakesnack snakesnack2 snapknack
sniper snowball snowcow socks
solonim sonictheparallelogram sonya soos
sort sortbooks souvenirs spaceinvaders
speakers special spellofweakness splithunny
spy square_ioi squidzofrenzic stackweights
stamps stepgame sterilizing stickytape
stones stonk stories straight
strawberry streakmanipulation streets strikes
subgraphs subtaskstitching sumint summit
sunshine supermarket supplies swapsort
swayingflowers swimming swords taxcollection
team telepathy telephone threetwentyoneam
tiles timeexam topical touchinggrass
tour tourism tourist tourist_noi
towerdefense towers train train_ex
trains trampoline transform trapezes
travel treecutting treepainting treepruning
treepruning2 trekking triangles triusis
troubles twoarrays twomeals typicalstairs
typo ultimateifelse uniquenumbers uniquepath
universe unluckyfloors unmerge vainish
variety veryeasyproblem videogames visitinggf
votingcities wabbit wabbitosu wabot
walking wallabyhop warp watching
weddingcoins whackamole winter wires
workload workoutplan worldend wormholes
xmas youngmaids zoo zooqueue