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 ants anutforajaroftuna applefarm
appletree area area_noi armpit
arrayfind arraypartition arrayproblem assembly
atm attention attractions bacteria
badnim badpotato badtree ballgame
ballot bananafarm bananafever bananasmoothie
bank banks basement basketball
battleship beareatrabbit becomingred belittle
bestplace bigbinarytree binarycoins binaryroads
binaryspells bobek bombing2 bookshelf
bossbattle bosses boundedpermutation boundlessboxes
boxes2 boxes_hkicpc boxhaskey boxispull
bracketex brackets bracketscore bracketsyndrome
brick bridge_apio15 bubblesort buffet
bunnyscore burger buycoke buycomputer
buygifts buyingcandy cake cake3
cakerun camels candies candyboxes
candymountain_ex candyshop car card
carpark carrots catchingcheaters catdog
catfight catleap catlunch ccs
charges cheerleaders chessislands chinese
choochoo christmasfeast christmaxtrees cht
chunlian clique clocktower closedrooms
closingshop cny coinbag coincombinations
coinjourney coke cokelesssugar collectmushrooms
collectmushrooms2 collectmushrooms3 collectmushrooms4 collectmushrooms5
collectmushrooms6 commando commonsubstring competition
conductslip conlang construct container
contestcalc conversations conversations_easy convexhull
cookie cookieclickeralpha coprimecodependence countalp
countingagain couples cowland crab
crypto cuberoot cudak cups
curtains deathray defense101 delivery
deque descsort destroy diamond
dice digits dijkstra dinowalk
discharging divisibility dna doll_noi
dotjoin doubleflip dquery dreaming
drones duathlon duckduckgo ducknuggetconvention
duckwander duckwar dyingpolynomial eatcake
eating eeducation eelimination eescapism
eevacuation election employee entropy
entropy2 erp escalation eta
evenorodd exam examinations exhibition
explosion explosives exponentiate exponentiate_ex
f7 factories familytree feast
feedthewallabies feelgood fenwicktree ferries
fertile fibo figurines findandprevent
findinggrass fireandbeary firefighting firelord
fizzbuzz flamethrower flappyrabbit flights
flipthat floors flybot foodchain
football foreveralone fortunetelling fourbuckets
fractions fraud frog3 frogs
fruits fuel fuelstation funfair
galaxycollapse garden gcd gecko
general generosity gerrymandering gfriendmania
gfriendtree gift globalwarming globalwarming_ceoi
gohcart goodprogrammer goodseq goombatower
gotoschool gotoubun graphcraft grassplant
greenbeans greeting grid gridgame
growingtrees guanine guards guards_easy
guards_ex guessproblem guessqueue gwynethandtree
gymbadges hacking hamster1 happyarrays
harddisk hashcollision heatwv hedgehogcrimes_easy
helloworld helloworld2 history hld
hld2 hole homeworkextension hoofpaperscissor
hop housevisit housing hungryrabbits1
hungryrabbits2 hunter ihate1111 illuminate
inequality2 inheritance installingapps integralmania
inversemax inversions ippt iqtest
iqtest3 jamestreet jams jjooii2
journey3 jumping2 jumpontree justright
kas kfc kickingshoes knightmoves
koopatroopacave labels ladybugs lasers
latex laughter lazycat lboard
lcm lcs leave leftright
lengthsort letters letterstamper letterstamper_ex
levelingup levenshtein lfs lightningrod
lineup lineup2 lis lis_easy
ljll ljubomora llis localexpress
logs lol 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 messages
mice milkweed minimum mining
minstack modules modulochain moneychanger
mononono monopoly more_lca more_lca2
motest motest2 motest3 motivation
mountain mountainrange mountains mrbeast
mrt mugger mulgogi naptime
neckties nemo network newjeans
nian nicenumber nihonese nis
nombor nonboringsequences nostatement nprime
numberfun numbergame numbers obstacles
obstacletree omnomnom omnomnom2 openingshop
optmilk orangecollector orangeroad oranges2
orchard oridance 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
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 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 rolling rootedlca
rotarylock routers routine royalguards
rubies runway safety sailor
sandd sawmills scalars scanner
sculptures_apio15 sealevel segmentoperations segmenttree
segmenttree2 segmenttree3 selectingintervals selfpermutation
semiconnected sequence_apio sherlockinversions shikandgame
shops shortest shuttlerun sightseeing
sightseeing2 simcity simp simplebridges
simpletask singlefile singleflip skillmoves
skyline skyscraper_apio15 smallprimes smurf
smurfpaths snack snakenladder snakesnack
snakesnack2 snapknack sniper snowball
snowcow socks solonim sonictheparallelogram
sonya soos sort sortbooks
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 telepathy telephone threetwentyoneam
tiles timeexam topical touchinggrass
tour tourist tourist_noi towerdefense
towers train train_ex trains
transform trapezes travel treecutting
treepruning treepruning2 trekking triangles
triusis troubles twomeals typicalstairs
typo ultimateifelse uniquenumbers uniquepath
universe unluckyfloors unmerge vainish
variety veryeasyproblem visitinggf votingcities
wabbit wabot walking wallabyhop
warp watching weddingcoins wires
workload workoutplan wormholes xmas
zooqueue