Problems
 
 
# Name    
A
pairs.in / pairs.out
2 s, 256 MB
Submit  x27
B
divisible.in / divisible.out
2 s, 256 MB
Submit  x20
C
arithnumbers.in / arithnumbers.out
2 s, 256 MB
Submit  x9
D
lamps.in / lamps.out
2 s, 256 MB
Submit  x5
Complete problemset
 
 
 
 
Questions about problems
 
 
  Question Answer