Problems
 
 
# Name    
C
standard input/output
1 s, 256 MB
Submit  x89
D
standard input/output
2 s, 256 MB
Submit  x69
E
standard input/output
8 s, 512 MB
Submit  x48
F
standard input/output
1 s, 256 MB
Submit  x15
G
standard input/output
1 s, 256 MB
Submit  x36
H
standard input/output
1 s, 256 MB
Submit  x12
I
standard input/output
3 s, 256 MB
Submit  
J
standard input/output
3 s, 256 MB
Submit  
Complete problemset
 
 
 
 
Questions about problems
 
 
  Question Answer
2021-10-30 02:54:01
Problem F. Present Drops
*****
Announcement
A mistake was found in the test data for problem F, we will be rejudging all submissions.
2021-10-30 02:49:21
Problem F. Present Drops
*****
Announcement
Santa CANNOT pick up a present at exactly the same time it is taken by the children. Please disregard the previous clarifications.
2021-10-30 02:35:13
Problem E. Grandest Wreath
*****
are vertices guaranteed to be 1,2 , ..., V?
Yes
2021-10-30 02:19:37
Problem F. Present Drops
*****
Announcement
Santa can pick up a present at exactly the same time it disappears.