Problems
 
 
# Name    
A
standard input/output
1 s, 256 MB
Submit  x15955
B
standard input/output
1 s, 256 MB
Submit  x12886
C
standard input/output
1 s, 256 MB
Submit  x8734
D
standard input/output
1 s, 256 MB
Submit  x3803
E
standard input/output
2 s, 256 MB
Submit  x2843
F
standard input/output
3 s, 256 MB
Submit  x741
G
standard input/output
1 s, 256 MB
Submit  x759
Complete problemset
 
 
 
 
Questions about problems
 
 
  Question Answer
2022-11-18 18:00:50
Announcement
Problem D. Make It Round
*****
The note for the test case 2 is fixed. The correct answer for this test is 200.
2022-11-18 17:50:33
Announcement
Problem A. Yes-Yes?
*****
A substring is a contiguous sequence of characters within a string. See https://en.wikipedia.org/wiki/Substring

I.e. A string a is a substring of a string b if a can be obtained from b by deletion of several (possibly, zero or all) characters from the beginning and several (possibly, zero or all) characters from the end.