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 arraygraph 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
binarylock binaryroads binaryspells bingeeating
bizarrebuffet blanko bobek bombing2
bookshelf bossbattle bosses boundedpermutation
boundlessboxes boxes2 boxes_hkicpc boxhaskey
boxinbox boxispull bracketex brackets
bracketscore bracketsyndrome 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
carpark carrots catchingcheaters catdog
catfight catleap catlunch ccs
charges cheerleaders chessislands childsetter3
childvschild chinese choochoo christmasfeast
christmaxtrees cht chunlian 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 delivery deque
descsort destroy diamond dice
differencearray digits dijkstra dinowalk
discharging divisibility dna doll_noi
dotjoin doubleflip dquery dreaming
drones duathlon duckduckgo duckhunt3
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 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 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
hamster1 happyarrays harddisk hashcollision
heatwv hedgehogcrimes_easy helloworld helloworld2
history hld hld2 hole
homeworkextension hoofpaperscissor hop housevisit
housing hungryrabbits1 hungryrabbits2 hunter
hurt ihate1111 illuminate inequality2
inheritance installingapps integralmania inversemax
inversions ippt iqtest iqtest3
jamestreet jams jjooii2 journey3
jumping2 jumpontree justright kas
kfc kickingshoes knightmoves koopatroopacave
kucice 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 merchant
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
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 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 robots 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
shoop 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 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 telepathy
telephone threetwentyoneam tiles timeexam
topical touchinggrass tour tourist
tourist_noi towerdefense towers train
train_ex trains trampoline transform
trapezes travel treecutting treepainting
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 whackamole
winter wires workload workoutplan
worldend wormholes xmas youngmaids
zooqueue