Problems
All Problems
Newest Problems
Unsolved Problems
Recommended Problems
Contests
Submissions
Clarifications
Others
Announcements
Rankings
Credits
C++ Reference
Donate!
Login
penguin's profile
Name
Peng Ruijia
School
Raffles Girls' School
Role
member
Country
Singapore
View Submissions
Solved Problems
3nplus1
3nplus1II
addition
adjlist
adjmatrix
arrayfind
arrayproblem
beareatrabbit
bestplace
binarycoins
boxispull
bracketex
brick
buffet
candymountain_ex
car
card
catfight
catlunch
clocktower
coinbag
contestcalc
conversations
conversations_easy
cuberoot
descsort
diamond
dijkstra
evenorodd
exam
explosion
exponentiate
fenwicktree
fibo
fizzbuzz
flamethrower
flybot
frogs
fruitsequences
gcd
gecko
general
gotoschool
greeting
guanine
hedgehogcrimes_easy
helloworld
illuminate
lcs
lengthsort
lineup
lis_easy
localexpress
lunchbox
lvm
mandarins
maximum
medianheap
medianstring
milkweed
minimum
moneychanger
mountains
mrt
neckties
nprime
omnomnom
paint
pandaeyes
payraise
pigeonhole
pigeons
potatosalad
prefixsums
prime
primefactorization
psle
pushups
rightangtri
routine
scalars
segmenttree
segmenttree2
simp
singlefile
smallprimes
smurf
snack
spellofweakness
splithunny
squidzofrenzic
stepgame
subgraphs
sumint
timeexam
trains
uniquenumbers
unmerge
wabot
weddingcoins
xmas