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Problems
 
 
# Name    
A
standard input/output
1 s, 256 MB
Submit  x31
B
standard input/output
0.5 s, 256 MB
Submit  x58
C
standard input/output
2 s, 256 MB
Submit  x62
Complete problemset
 
 
 
 
Questions about problems
 
 
  Question Answer