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Problems
 
 
# Name    
A2
standard input/output
7 s, 256 MB
Submit  
B2
standard input/output
2 s, 512 MB
Submit  x8
C2
standard input/output
2 s, 256 MB
Submit  x8
D2
standard input/output
1 s, 256 MB
Submit  x34
Complete problemset
 
 
 
 
Questions about problems
 
 
  Question Answer