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Name Ryan Shaw
School Ngee Ann Secondary School
Role admin
Country Singapore
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01knapsack 0405 1402 1402_2
1503 1609 1821 3nplus1
3nplus1II 4cuts 4in1 4in1again
4russians 4sum 727 7up
GSS NYAerion NYCanteen NYSSW_easy
NYSport NYTrainers OrXor Pickaxe
SameMapInTheRpgWorld Unbalanced WA1 abbb
abcs acorns add1 add1_easy
addition addition2 addition3 addk
addone adjacentswaps adjlist adjmatrix
adventure aircon airplane alienalien
aliens aliens_ioi alphabrackets amicablecats
ancestor ants anutforajaroftuna appeal
applefarm appletree arcade archaeologist
arcwrecker2 area area_noi armpit
arrayfind arraygraph arraypartition arrayproblem
askonegetonefree assembly assignpaths assistance
atleasttripledate atm attention attractions
babyproduction bacteria badchef badnim
badpotato badtone33 badtree ballgame
ballot ballsofbuma bananafarm bananafever
bananaland bananasmoothie bank banks
basement baseplans basketball beacon
beareatrabbit beautifulbrackets belittle bestplace
bftrouble binarycoins binarylock binaryroads
binaryspells binarystring bingo binomial
bizarrebuffet blackmagic blank blanko
boardvision bobek bombing bombing2
books bookshelf boring bossbattle
bosses bosubaiko bottle boundedpermutation
boundlessboxes boxes boxes2 boxes_hkicpc
boxhaskey boxispull bracketex brackets
bracketscore bracketsuperseq bracketsyndrome breakfast
brick bridge_apio15 bubblesort bucketstacking
buffet build bunnyscore burger
burgers buycoke buycomputer buygifts
buyingcandy cake cake3 cakerun
camels candies candies2 candies_joi
candles candyboxes candymountain_ex candyshop
car card cardgame2 cards
cardtrick carpark carrots casino
catchingcheaters catfight catgameshow catleap
catlunch catnames cats catsort
catteams cave ccs celldivision
centroid change charges cheerleaders
chessislands chickensoup chimera chinese
chocolate chokolit choochoo chope
christmasfeast christmaxtrees cht chunlian
cipele clique clocktower closedpath
closedrooms closing closingshop cny
coin coinbag coincombinations coinjourney
coinmaster coins coke cokelesssugar
collectmushrooms collectmushrooms2 collectmushrooms3 collectmushrooms4
collectmushrooms5 collectmushrooms6 colorgraph colour
colourblind combo commando commonsubstring
compact competition compleecode conductslip
conlang construct container contestcalc
convention conversations conversations_easy convexhull
cookie cookieclickeralpha cooperation coprimecodependence
copyandpaste countalp countingagain couples
cousin cowland cp2booksales crab
createnumber cringemeter crypto cuberoot
cudak cups curtains cyberland_apio23
datacenters deathray decayedbridges deciphering_zane
deciphering_zane_4 deciphering_zane_ex decrypt deda
defense101 deforestation deletingnumbers deliveroo
democracy departure deque descsort
destroy devil devour diamond
diesel digits dijkstra dinnerbox
dinowalk discharging distribution divideby2
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dotjoin doubleflip doubletrip doubletrouble
downbad dquery dragonfly dreaming
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ducktransport duckwalk duckwander duckwar
duels dummy dungeons2 dyingpolynomial
dynamicdag dzumbus eatcake eating
eeducation eelimination eeniemeenie eescapism
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entropy entropy2 equals erp
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exam examinations examstress examstress2
examstress2_ex exhibition exoticplants experimentexplodeexpel
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f7 fabric factorial factorial_easy
factories feast feedtheduck feedthewallabies
feelgood fenwicktree fenwicktree_easy ferries
fertile fibble fibo fibo_easy
figurines findandprevent findinggf findinggrass_ex
findingpavement findmultiple fireandbeary firecracker
firefighting firelord fireworks firstabc
fish fitnesscorner fizzbuzz flamethrower
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flipcards flipthat floors flowering
flybot foodchain football foreveralone
fortunetelling fourbuckets fractional_knapsack fractionalmultiset
fractions fraud frog3 frogs
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fuelstation funfair funniernim funnynim
galaxycollapse garden garden_ioi05 garden_ioi08
gcd gecko general generosity
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gfriendtree ghostrule gift girlfriend
globalwarming globalwarming_ceoi globalwarming_ex glottalstops
gohcart goinghome_agc goneviral goodbye
goodchef goodmorning goodprogrammer goodseq
goofyarray goofyrooks goombatower gotoschool
gotoschool_ex gotoubun graph graphcraft
graphoverflow grassplant gravity grazing
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growingtrees guanine guards guards_easy
guards_ex guessarray guessproblem guessproblem2
guessproblem3 guessproblem3_ex guessproblem4 guessproblem4_ex
guessqueue gwynethandtree gymbadges hacking
hackingscores hackthectf hamster1 happyarrays
harddisk hashcollision hdb heatwv
hedgehogcrimes_easy hellokitty helloworld helloworld2
hiddenarray hipercijevi historical history
hld hole homeworkextension hoofpaperscissor
hop horses hotelhunt hotelhunt_easy
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housing humantrafficking hungrycats hungryrabbits1
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identifyinggirlfriends ihate1111 illuminate imagination
index indivisibility infinitezoo inheritance
inspections installingapps integralmania intercastellar
interestring invasion inversemax inversions
ippt iqtest iqtest2 iqtest3
island islands2 jamestreet jams
jjooii2 joke journey3 jumping2
jumpontree justright kas kfc
knapsack knightmoves koopatroopacave kthsubstring
kusac labels ladybugs lampposts
lamps laptop lasers latex
laughter lazycat lboard lcm
lcs learning leave leftright
lemmas lemonadestand lengthsort letters
letterstamper letterstamper_ex levelingup levenshtein
lfs lightningrod lightsflip lineup
lineup2 lis lis_easy ljll
ljubomora llis localexpress logs
lol lopov losingsleep lostarray
loveletter lowelements lps lratio
lualectures luarulers luckynumbers2 lunchbox
lunchcombo lunchtime lvm magicboard
magiccarps magicspell magicstring magicwand
makingparallelograms malcolm mamamintaplusa management
mandarins manycolours manyjobs markinghouses
mate math mathclass mathexam
mathtest matsuri maxavg maximum
maximummonogonosity maximumtriangle medianheap medianontree
medianstring melons_joig meltylandnightmare mememagic
merchant merchant2 mercurypoisoning mergeguessproblem
mice milkweed minimise minimum
mining minstack miracleflover missingnumber
mobitel modsum modules modulochain
molecules moneychanger moneytree mononono
monopoly monsters more_lca morefun
motest2 motest3 mothertounge motivation
mountain mountainbridges mountains movingbasement
mrbeancurd mrbeast mrt mugger
mulgogi multipaths multiple mushroomfarm
naan naptime neckties nemo
nerdinvitation network nevergiveup newjeans
nextprime nicenumber nihonese nis
nombor nonboringsequences noodlestore nostatement
nou nprime nprime2 numberfun
numbergame numbers numericalstrings nutritionist
ny_mathexam ny_unwind nycheer nylunchtime
nypromo nystudy obstacles obstacletree
omnomnom omnomnom2 onlineexam ontheedge
openingshop optimalsubseq optmilk orangecollector
oranges2 orchard oridance orz
overthinking packaging packingducks packingpests
padoru paint pairofballs pairs
pairs_atcoder pairsums palindromicfever palindromicfizzbuzz
pancake pancake_ex pandacity pandaeyes
pandanumbers pandaski pandasoldiers papaya
parade parallelogramfest parallelogramisation parallelogrampairs
park partitiongame party party_noi
pascal passwords pavement payraise
peakfinding peddler peepeepoopoo pekora
penghulu penguinex penguinfood penguingathering
penguinislands penguinmountain perfectprimes performance
permutationswap personalspace photo photo_nyoi
photograph picnic pigeonhole pigeonnests
pigeons pilot ping pipes
pizzeria placingrouters plagia planning
plantingpotatoes playlist ples poi
pokeadd pokenumbers poklon police
polyomino ponteng portals postcard
potatoqueue potatosalad potatotree potionseasy
potionshard power powervillage pplow
prefixgcd prefixsums prime primeage
primefactorization primepie primesort problematicjourney
problemsetter progression progressionspells promotion
psle purplecandy pushups puttingstrings
pythonindentation qualityinspections qualitytime queuecutting
quillvsowl rabbitbars rabbitbridges rabbiteatrabbit
rabbitmeeting rabbitmilk rabbitpainting rabbitplane
rabbitroad rabbittolls race radioactive
railway rainbow rainbowfish rainbowrabbit
rainbowroad rainbowroad_ex rangedeleting rank
rarsum rating razlika rblock
rbpoints reachability reading rebuild
reciprocals reciprocate rectangleoutline redblacktree
relaymarathon removalcosts removeedges removeelements
reopening repairs replacedigits replacingpavement
republiccity restaurant reverseandmin reversiblecampaign
riggedroads rightangtri rmaxq rmq
roadsideadverts roadtrip robberduck robobear
robots rockclimbing rolling rooms
rootedlca rotarylock routers routes
routine royalguards rubies runway
rushing sailor sale samelength
sandcity sandd sardines sawmills
scalars scanner schedule seagame
sealevel secret segmenttree segmenttree2
segmenttreebeats selectingintervals selfdefence selfpermutation
semiconnected september sequence sequence_apio
sequences settingquestions sherlockinversions shikandgame
shoes shops shortest showertheduck
shuffling shuttlerun sightseeing sightseeing2
simcity simp simplebridges simpletask
singlefile singleflip skillmoves skyline
skyscraper_apio15 slimes smallprimes smallprimes_ex
smurf smurfpaths snack snail
snakecode snakenladder snakesnack snakesnack2
snapknack sniper snowball snowcow
snukethewizard soccer socks solarstorm
solonim sonictheparallelogram sonya sort
sortbooks sortingtrainers sortingtrainers2 sos
spaceinvaders speakers special specialgirlfriends
spellofweakness spiraldance split2 splithunny
splittingpower spy square_ioi squarerect
squidzofrenzic ssw stackweights staircase
stamps stepgame sterilizing stickytape
stones stoning stonk stories
strawberry streakmanipulation streets strikes
stringsofimpurity subgraphs subknapsack subsetmex
subtaskstitching sumalllis sumint summarising2020
summarising2023 summarizing2021 summit sumo
sunshine supermarket supertrees supperbox
supplies swap swapsort swayingflowers
swimming swords taxcollection taxes
tears telephone teleporting testing4
thanossort thanossort_st4 thedarknight thief
threetowers threetwentyoneam thunderstorm tickethandling
tiles timeexam tmp toilettime
tomandjerry topical torturingaccountant tour
tourist tourist_noi towerdefense towers
towers_noi train train_ex traineeline
trains trains_mco transform trapezes
trashinteractive travel treasurehunt treasures
treecutting treepruning treepruning2 triangles
trianglesum triusis trivialexam trivialexam_ex
trivialexam_ex_ex trivialmaths troubles truck
twomeals typicalstairs typo typoswap
ultimateifelse umbrella uniquenumbers uniquepath
universe unluckyfloors unmerge vainish
variety verticallychallenged veryeasyproblem visitinggf
visitingsingapore volcanic voting votingcities
vouchers wabbit wabbitosu wabot
walking wallabyhop warp watching
waterbottles waterbottles2 weddingcoins weightedguess
whackamole whatisthisactf wires wiring
woodcutter workload workload2 workoutplan
wormholes xmas xorb xortree
xuehuapiaopiao yayornay youngmaids youtubealgo
zanesgift zanesletters zoo zooqueue