PlayVoltz's profile

Name Ryan Shaw
School Hwa Chong Institution (prev: Ngee Ann Secondary School)
Role admin
Country Singapore
View Submissions
Solved Problems
01knapsack 0405 1111galpassword 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 UCFJ Unbalanced
WA1 abbb abc_apio23 abcs
acorns add1 add1_easy addictiontoworry
addition addition2 addition3 addk
addone addsubtract adjacentswaps adjlist
adjmatrix adventure aesthetic aircon
airline airplane alienalien aliens
aliens_ioi alphabrackets amicablecats ancestor
ants anutforajaroftuna appeal applebaskets
applefarm appletree aratherinterestingtube arcade
archaeologist arcwrecker2 area area_noi
armpit arrangetoys arrayfind arraygraph
arraypartition arrayproblem artswap askonegetonefree
assembly assignpaths assistance atleasttripledate
atm atomsplit attackofthelitlosers attention
attractions babyproduction bacteria badchef
badknapsack badnim badpotato badtone33
badtree ballgame ballot ballsofbuma
bananafarm bananafever bananaland bananasmoothie
bank banks basement baseplans
baseplans_ex basketball basketball_cpic battleship
beacon beareatrabbit beautifulbrackets beechtree
belittle berlandtaxi bestplace between2arrays
bftrouble bichrome bigbinarytree bigredarrow
binarycoins binarylock binaryroads binarysearch
binaryspells binarystring bingeeating bingo
binomial biscuits bitaro bizarrebuffet
blackmagic blank blanko boardvision
bobek bombardirocrocodilo bombing bombing2
books bookshelf boring bossbattle
bosses bosubaiko bottle boundedpermutation
boundlessboxes boxes boxes2 boxes4
boxes_hkicpc boxhaskey boxinbox boxinbox2
boxispull bracketex brackets bracketscore
bracketsuperseq bracketsyndrome brainrot breakfast
brick bridge_apio15 bridges_apio19 bubblesort
bucketstacking buffet build bunnyscore
burger burgers buycoke buycomputer
buygifts buyingcandy cake cake3
cakerun calc camels candies
candies2 candies_joi candles candyboxes
candymountain_ex candyshop cappuccinoassassino car
card cardgame cardgame2 cards
cardtrick carpark carrots casino
catchingcheaters catdog catfight catgameshow
catleap catlunch catnames cats
catsort catteams cave ccs
celldivision centroid chaewon change
charges cheerleaders chessislands chickensoup
childsetter childsetter2 childsetter3 childsetter4
childvschild chimera chinese chocolate
chokolit choochoo choose2eat1 choosingcandies
chope christmasfeast christmasturkeyfarm christmaxtrees
cht chunlian cinema cipele
citymapping clique clocktower closedpath
closedrooms closing closingshop cloudcomputing
cny coin coinbag coincombinations
coingame coinjourney coinmaster coins
coke cokelesssugar cokemoresugar collaboration
collectingstamps3 collectmushrooms collectmushrooms2 collectmushrooms3
collectmushrooms4 collectmushrooms5 collectmushrooms6 colorgraph
colour colourblind colourfulpaths combo
commando commonsubseq commonsubsequence commonsubstring
compact competition compleecode conductslip
conlang construct container contestcalc
convention conversations conversations_easy convexhull
cookie cookieclickeralpha cooperation coprimecodependence
copyandpaste corporate countalp countingagain
couples coupons cousin cowland
cp2booksales crab createnumber cringemeter
crypto cuberoot cudak cups
curtains cyberland_apio23 cycling datacenters
dayum deathray decayedbridges deciphering_zane
deciphering_zane_4 deciphering_zane_ex decrypt deda
defense101 deforestation deletingnumbers deliveringpotatoes
deliveroo delivery democracy departure
deque descsort destroy devil
devour diamond diamond_usaco dice
diesel differencearray digits dijkstra
dinnerbox dinowalk discharging discord
distribution div3 diversesegments divideby2
divisibility division divsum divsum_dec18
dkdk dna dna_ioi do_you_like_me
dogmonkey doll doll_noi domine
dotjoin doubleflip doubletrip doubletrouble
downbad dquery dragonfly drama
dreaming drones drunkpalindrome duckbuttons
duckduckgo duckeatant duckeatduck duckhunt
duckhunt12 duckhunt13 duckhunt2 duckhunt3
duckhunt4 duckhunt5 duckhunt6 duckhunt7
duckhunt8 duckhunt9 ducknuggetconvention ducktransport
duckwalk duckwander duckwar duels
dummy dungeons2 dyingpolynomial dynamicdag
dzumbus eatcake eating eatinghealthy
eatingkids eatingkids2 eatingparallelograms economics
eeducation eelimination eeniemeenie eescapism
eevacuation eexploration eight election
election_joi22 employee entropy entropy2
enwisen equals erp escalation
eta evenorodd everyonewinstherace exam
examinations examstress examstress2 examstress2_ex
exhibition exhibition2 exoticplants expansion
experimentexplodeexpel explosion explosives exponentiate
exponentiate_easy exponentiate_ex f7 fabric
factorial factorial_easy factories factorymachines
fakeidol feast feedtheduck feedthewallabies
feelgood fencing fenwicktree fenwicktree_easy
ferries fertile fibble fibo
fibo_easy figurines finalday findandprevent
findinggf findinggrass findinggrass_ex findingpavement
findmultiple fireandbeary firecracker firefighting
firelord fireworks firstabc fish
fitnesscorner fizzbuzz flamethrower flamethrower_ex
flappyrabbit flights flip flipcards
flipthat flood flooding2 floors
flowering flows flybot foodchain
football foreveralone forkintheroad fortunetelling
fourbuckets fractional_knapsack fractionalmultiset fractions
fraud friend frog3 frogs
fruits fruits_noi fruitsequences fsylll
fuel fuelstation funfair funniernim
funnyhat funnynim funnysequence galaxycollapse
gap garden garden_ioi05 garden_ioi08
gcd gecko general generosity
gentlepairs gerrymandering gerrymandering_ex gfriendmania
gfriendtree ghostrule giantduck gift
girlfriend giselle givinggifts globalwarming
globalwarming_ceoi globalwarming_ex glottalstops gohcart
gohcart2 goinghome_agc goneviral goodbye
goodchef goodgame goodmorning goodprogrammer
goodseq goofyarray goofyrooks goombatower
gota gotoschool gotoschool_ex gotosleep
gotoubun grapevine graph graphcraft
graphoverflow grassplant gravity grazing
greenbeans greeting grid gridgame
growingtrees guanine guards guards_easy
guards_ex guessarray guessproblem guessproblem2
guessproblem3 guessproblem3_ex guessproblem4 guessproblem4_ex
guessqueue gwynethandtree gymbadges hack
hacked hacker hacking hackinggate
hackingscores hackthectf hallucinations hammeringnails
hamster1 happyarrays harddisk hashcollision
hdb heatwv hedgehogcrimes_easy hello
hellokitty helloworld helloworld2 hiddenarray
hipercijevi historical history hld
hole holiday homeworkextension hoofpaperscissor
hop horses hotelhunt hotelhunt_easy
hotelhunt_ex hotelhunting hotspot housevisit
housing humantrafficking hungrycats hungryrabbits1
hungryrabbits2 hunter hurt hypeboy
identifyinggirlfriends idetestevennumbers ihate1111 ihatenonint
illuminate imagination impossiblegame index
indextimesa indivisibility infiniteloop infinitezoo
inheritance inspections installingapps integralmania
intercastellar interestring invasion inversemax
inversioncounting inversions ippt iqtest
iqtest2 iqtest3 iroha island
island_boi islands2 ispit istj
itinerary jamestreet jams jewels
jjooii2 joke journey3 jumper
jumping2 jumpontree jumps justright
karina kas kfc kickingshoes
knapsack knightmoves koopatroopacave kthsubstring
kusac labels labs ladybugs
lambsrespite lampposts lamps landgame
laptop lasers latex laughter
lazycat lboard lcm lcs
learning leave leenbeetree leftout
leftright lemmas lemonade lemonade2
lemonadestand lengthsort letters letterstamper
letterstamper_ex levelingup levenshtein lfs
lightningrod lightsflip lineup lineup2
lis lis_easy ljll ljubomora
llis lllontree localexpress log
logs lol lonelybeavers lookback
lopov losingsleep lostarray lostones
loveletter lowelements loza lppfnlcst
lps lratio lualectures luarulers
luckynumbers2 lunchbox lunchcombo lunchtime
lvm magicboard magiccarps magick
magicspell magicstring magicwand maintainsum
makemst makingparallelograms malcolm malguem
mamamintaplusa management mandarins manycolours
manyjobs markinghouses mate math
mathclass matheletes mathematics mathexam
mathmadness mathtest mathtree matrixrotation
matsuri maxavg maximum maximummonogonosity
maximumtriangle medianheap medianontree medianstring
melons_joig meltylandnightmare mememagic merchant
merchant2 merchant_o mercurypoisoning mergeguessproblem
mergers mergevectors messy mice
midas milkweed mindeque minerals
minimetro minimise minimum mining
minju minstack miracleflover mirrors
missingnumber mobitel modsum modules
modulochain moka molecules moneychanger
moneytree monochromecat mononono monopoly
monsters monsters2 moosic more_lca
more_lca2 morefun morexiaoyang motest
motest2 motest3 mothertounge motivation
mountain mountainbridges mountains movingbasement
movingkids mrbeancurd mrbeast mrt
mrt2 mugger mulgogi multipaths
multiple multipleswith8 mushroomfarm naan
naptime neckties nemo nerdinvitation
network nevergiveup newjeans nextprime
nian nicenumber nicewelltakethat nihonese
ningning nis nombor nomorebp
nonboringsequences noodlestore nostatement notebook
notimetodry nou nprime nprime2
numberbuilding numberfun numbergame numbers
numberspeak numberspiral numericalstrings nutritionist
ny_mathexam ny_unwind nycheer nycoordinates
nylunchtime nypromo nystudy nytrainer_hard
obstacles obstacletree oddoneout oddqueries
omnomnom omnomnom2 oneforone onlineexam
ontheedge openingshop openingshop0 optimalsubseq
optmilk orangecollector orangeroad oranges2
orchard orchard2 oridance orz
osumnjiceni outing overthinking packaging
packingducks packingpests padoru paint
paint_apio paint_ioi pairofballs pairs
pairs_atcoder pairsums palindromicfever palindromicfizzbuzz
pancake pancake_ex pandacity pandaeyes
pandanumbers pandaski pandasoldiers papaya
parade parade_nyoi parallelogramfest parallelogramisation
parallelogramisation2 parallelogrampairs park partitiongame
party party_noi pascal password
passwords pavement payraise peakfinding
peddler peepeepoopoo pekora penghulu
penguinex penguinfood penguingathering penguinislands
penguinmountain perfectprimes performance perm
permgame permutationgrid permutationswap personalspace
photo photo_nyoi photograph physics
picnic pigeonhole pigeonnests pigeons
pillars pilot ping pipes
pizzeria placingrouters plagia planning
plantingpotatoes plantingpotatoes2 plasticsimps platonic
platonic2 platonic3 platonic4 platonic5
playlist ples poi pokeadd
pokenumbers poklon police polyomino
ponteng portals postcard potatoqueue
potatosalad potatosqueues potatotree potionseasy
potionshard power powerfulmaxsum powervillage
pplow prefixgcd prefixsums pressstart
prime primeage primefactorization primepie
primesort priorityqueue prisoners prize
problematicjourney problemsetter problemsetter2 procrastination
progression progressionspells progressive promotion
psle purplecandy pushups puttingstrings
pythonindentation pythonlist quality qualityinspections
qualitytime queuecutting quillvsowl rabbitbars
rabbitbridges rabbiteatrabbit rabbitjoke rabbitmeeting
rabbitmilk rabbitpainting rabbitplane rabbitroad
rabbittolls race radioactive railroad
railway rainbow rainbowfish rainbowrabbit
rainbowroad rainbowroad_ex rangedeleting rangerangequery
ranges rank raptorinc rarsum
rarwall rating razlika rblock
rbpoints reachability reachability2 reading
rebuild reciprocals reciprocate rectangleoutline
redblacktree relaymarathon removalcosts removeedges
removeelements reopening repairs replacedigits
replacingpavement republiccity restaurant reverse
reverseandmin reversiblecampaign richzhe riggedroads
rightangtri rmaxq rmq roadsideadverts
roadtrip robberduck robobear robotbombs
robotonring1 robotonring2 robotonring3 robotrotation
robots robots2 rockclimbing rollercoaster
rolling rooms rootedlca roots
rop rotarylock rotate round_up_division
routers routes routine royalguards
rubies runaway runway rushing
sadtrainer sadtrainer2 safety sailor
sale samelength sana sandcity
sandd sardines sawmills scalars
scanner schedule scicom scrivener
sculptures_apio15 seagame sealevel seats2
secret segmenttree segmenttree2 segmenttree3
segmenttreebeats selectingintervals selfdefence selfpermutation
selfstudy sellingpotatoes semiconnected semiexpress
september sequence sequence_apio sequence_apio23
sequences settingquestions shamelessad shamelessad2
shamelessad3 shamelessad4 shamelessad5 shamelessad5_ex
sherlockinversions shikandgame shiritori shiritori_ex
shirts shoes shoop shops
shorten shortest show showertheduck
shuffling shuttlerun sightseeing sightseeing2
sillysort simcity simp simplebridges
simplemath2 simpletask singlefile singleflip
skibuddy skiing skillmoves skips
skyline skyscraper_apio15 slidefk slimes
smallprimes smallprimes_ex smokeflower smurf
smurfberries smurfpaths snack snacks
snail snake snakecode snakenladder
snakesnack snakesnack2 snapknack sniper
snowball snowcow snukethewizard soccer
socks solarstorm solonim sonictheparallelogram
sonya sort sort2 sortbooks
sorting sorting2 sortingtrainers sortingtrainers2
sos spaceinvaders speakers special
specialgirlfriends spellofweakness spiderweb spiraldance
split2 splithunny splittingpower spy
square_ioi squarerect squidzofrenzic ssoca
ssw stackweights staircase stamps
stations stepgame sterilizing stickytape
stones stoning stonk stories
strangedevice strawberry streakmanipulation streetlamps
streets strikes stringsofimpurity subgraphs
subknapsack subperm subsetmex subtaskstitching
sudoku sudoku2 sufferingprogrammer sum
sumalllis sumint summarising2020 summarising2023
summarising2024 summarizing2021 summit sumo
sumofdigits sumstack sumsumdigit sunshine
superduper supermarket superpiece supertrees
supperbox supplies surnames swap
swapbuildings swapsort swayingflowers swimming
swords taskmanaging taxcollection taxes
team tears telephone teleporting
tents testing4 thanossort thanossort_st4
thedarknight thief threetowers threetwentyoneam
thumper2 thunderstorm tickethandling tickets
tiles timeexam tmp toblerone
toilettime toll tomandjerry topical
torturingaccountant touchinggrass tour tourism
tourist tourist_noi tournament towerdefense
towers towers_noi toxic toxic2
train train_ex traineeline trainorbus
trains trains_mco tralalerolarila trampoline
transform transmit transportingpotatoes trapezes
trashinteractive travel treasurehunt treasures
treecutting treepruning treepruning2 triangles
trianglesum triusis trivialexam trivialexam_ex
trivialexam_ex_ex trivialmaths trollingbribritt troubles
truck twoarrays twochoices twomeals
typicalstairs typo typoswap ultimateifelse
umbrella uniquenumbers uniquenumbers_easy uniquepath
unitedcows universe unluckyfloors unmerge
usefft1 vainish valley variety
verticallychallenged veryeasymath veryeasyproblem videogames
village vision visitinggf visitingsingapore
visitor volcanic voting votingcities
vouchers wa2 wabbit wabbitosu
wabot walking wall wallabyhop
warp warp2 watching waterbomb
waterbottles waterbottles2 waterbottles3 weddingcoins
weightedguess werewolf whackamole whalegroups
whaleroles whatisthisactf whiteboardgame whoatethefries
wikipedia winter wires wiring
wiring_ioi wonhee woodcutter workload
workload2 workoutplan worldend worldline
wormholes wronganswer wrongreverse wv
xmas xorb xortree xuehuapiaopiao
yaleuniversity yayornay yogurt youngmaids
youtubealgo yunah zanesescape zanesgift
zanesletters zanespresents zoo zooqueue