sign in
sign up
forgot
Toggle navigation
PROBLEMS
STATUS
RANKS
DISCUSS
CONTESTS
sign in
Classical
Challenge
Partial
Tutorial
Riddle
Basics
#tags
ID
NAME
QUALITY
USERS
ACC %
DIFFICULTY
C
I
25942
Ball sum
42
1770
11
11
25
Pouring water
99
5327
19
22
26301
Bits. Exponents and Gcd
4
122
21
26
#gcd
Greatest common divisor