Problems
All Problems
Newest Problems
Unsolved Problems
Recommended Problems
Contests
Submissions
Clarifications
Others
Announcements
Rankings
Credits
C++ Reference
Donate!
Login
Xiaoyang's profile
Name
Xin Anxiaoyang
School
NJC
Role
admin
Country
Singapore
View Submissions
Solved Problems
01knapsack
0405
1503
1609
1821
3nplus1
3nplus1II
4russians
4sum
727
7up
GSS
abbb
abc_apio23
addition
addition2
addk
addone
adjacentswaps
adjlist
adjmatrix
amicablecats
ancestor
applefarm
area
area_noi
armpit
arrayfind
arrayproblem
assembly
badnim
badpotato
ballot
bananafarm
bananasmoothie
bank
beareatrabbit
becomingred
bestplace
binarycoins
binaryroads
binomial
bobek
bosses
boundlessboxes
boxispull
bracketex
bracketsyndrome
brick
buffet
burger
burgers
buycomputer
buygifts
candies
candies2
candyboxes
candymountain_ex
candyshop
car
card
cardtrick
carpark
cashmoney
catalansum
catfight
catlunch
cave
ccs
centroid
change
cheerleaders
chessislands
chinese
choochoo
christmasfeast
clocktower
closedpath
closedrooms
coinbag
coincombinations
coingame
coinjourney
coke
collectmushrooms
collectmushrooms2
collectmushrooms6
commando
commonsubstring
competition
construct
contestcalc
conversations
conversations_easy
convexhull
cookieclickeralpha
countalp
cowland
cuberoot
cups
deathray
decayedbridges
deciphering_zane
deletingnumbers
deque
descsort
diamond
digits
dijkstra
dinowalk
divisibility
dna_ioi
dogmonkey
doll_noi
doubleflip
doubletrouble
duckwander
dyingpolynomial
eatcake
eating
eeducation
eelimination
eescapism
eevacuation
employee
entropy
evenorodd
exam
examinations
exhibition
explosion
exponentiate
exponentiate_ex
f7
feast
fenwicktree
fibo
findinggrass_ex
fireandbeary
fizzbuzz
flamethrower
flappyrabbit
floors
flybot
foodchain
foreveralone
fractional_knapsack
fractions
fraud
frog3
frogs
fuel
gcd
gecko
general
generosity
gift
globalwarming
goodprogrammer
goodseq
gotoschool
gotoubun
graphcraft
grassplant
greenbeans
greeting
grid
guanine
guards_ex
guessarray
guessproblem
guessqueue
gymbadges
hacking
hamster1
harddisk
hashcollision
heatwv
hedgehogcrimes_easy
helloworld
helloworld2
homeworkextension
hoofpaperscissor
housing
hungryrabbits1
hungryrabbits2
ihate1111
illuminate
indivisibility
inversions
iqtest
iqtest2
iqtest3
journey3
jumpontree
justright
kfc
knightmoves
kthsubstring
kusac
labels
ladybugs
lboard
lcm
lcs
leave
leftright
lemonadestand
lengthsort
letters
letterstamper
levenshtein
lfs
lightningrod
lineup
lineup2
lis
lis_easy
ljubomora
localexpress
logs
lol
lostarray
lps
lratio
lualectures
luarulers
luckynumbers2
lunchbox
lvm
magicwand
management
mandarins
maximum
medianheap
medianstring
milkweed
minimum
minstack
modulochain
molecules
moneychanger
mountains
mrt
mugger
neckties
network
nicenumber
nihonese
nis
nou
nprime
numberfun
numericalstrings
obstacletree
omnomnom
omnomnom2
optmilk
oranges2
orchard
oridance
packingducks
paint
pairsums
palindromicfizzbuzz
pandacity
pandaeyes
papaya
party
pascal
payraise
peakfinding
peddler
perfectprimes
performance
picnic
pigeonhole
pigeons
pilot
ping
pizzeria
poi
pokeadd
pokenumbers
postcard
potatoqueue
potatosalad
potatotree
potionseasy
potionshard
pplow
prefixgcd
prefixsums
prime
primefactorization
primepie
problematicjourney
psle
purplecandy
pushups
pythonindentation
rabbiteatrabbit
rabbitmilk
railway
rainbowrabbit
rank
razlika
rblock
reading
reciprocals
redblacktree
reopening
repairs
restaurant
rightangtri
rmaxq
rootedlca
rotarylock
routers
routine
samelength
sandd
scalars
sealevel
segmenttree
segmenttree2
shortest
sightseeing
simcity
simp
simplebridges
singlefile
singleflip
skillmoves
smallprimes
smallprimes_ex
smurf
smurfpaths
snack
snail
snowball
socks
solonim
sonya
sort
speakers
spellofweakness
splithunny
square_ioi
squidzofrenzic
stepgame
stickytape
stones
stonk
stories
stringsofimpurity
subgraphs
subtaskstitching
sumint
summarising2020
summit
sumo
supplies
swapsort
swayingflowers
swords
taxcollection
telepathy
telephone
thunderstorm
timeexam
tourist
train
train_ex
trains
treecutting
treepruning
trivialexam
trivialexam_ex
trivialexam_ex_ex
twomeals
typicalstairs
typo
ultimateifelse
uniquenumbers
universe
vainish
veryeasyproblem
votingcities
wabbit
wabot
weddingcoins
workload
workoutplan
wormholes
xmas
xorb
zooqueue