Problems
 
 
# Name    
1
standard input/output
0.5 s, 256 MB
Submit  x378
2
standard input/output
1 s, 256 MB
Submit  x300
3
standard input/output
0.5 s, 256 MB
Submit  x253
4
standard input/output
1 s, 256 MB
Submit  x51
5
standard input/output
1 s, 256 MB
Submit  x20
Complete problemset
 
 
 
 
Questions about problems
 
 
  Question Answer