Problems
 
 
# Name    
A
standard input/output
1 s, 256 MB
Submit  x2379
B
standard input/output
2 s, 512 MB
Submit  x4210
C
standard input/output
3 s, 256 MB
Submit  x841
D
standard input/output
4 s, 256 MB
Submit  x585
E
standard input/output
3 s, 256 MB
Submit  x1238
Complete problemset
 
 
 
 
Questions about problems
 
 
  Question Answer
2018-05-15 18:09:17
Announcement
Problem A. Finite or not?
*****
Note that we added some notes to the samples. Refresh the statements to see them.
2018-05-15 18:04:31
Announcement
Problem B. XOR-pyramid
*****
Note that the array in function f is 1-indexed. Refresh the statements to see the correct formula.