Problems
 
 
# Name    
A
standard input/output
20 s, 256 MB
Submit  x14
B
standard input/output
1 s, 256 MB
Submit  x338
C
standard input/output
1 s, 256 MB
Submit  x201
D
standard input/output
2 s, 256 MB
Submit  x35
E
standard input/output
20 s, 256 MB
Submit  x40
F
standard input/output
2 s, 256 MB
Submit  x187
G
standard input/output
1 s, 256 MB
Submit  x1
H
standard input/output
1 s, 256 MB
Submit  x186
I
standard input/output
2 s, 256 MB
Submit  x103
1 The package for this problem was not updated by the problem writer or Codeforces administration after we've upgraded the judging servers. To adjust the time limit constraint, a solution execution time will be multiplied by 2. For example, if your solution works for 400 ms on judging servers, then the value 800 ms will be displayed and used to determine the verdict.
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Questions about problems
 
 
  Question Answer
2025-06-28 14:08:46
Problem A. Battleships
*****
what is the range of n?
in the testcases,n <= 68
2013-11-20 17:55:45
Problem I. Xenospeak
*****
Announcement
n*m < 2^{64}