Problems
 
 
# Name    
A
standard input/output
1 s, 256 MB
Submit  x23307
B
standard input/output
1 s, 256 MB
Submit  x13928
C
standard input/output
1 s, 256 MB
Submit  x13048
D
standard input/output
2 s, 512 MB
Submit  x9175
E
standard input/output
2 s, 256 MB
Submit  x3949
F1
standard input/output
2 s, 256 MB
Submit  x1272
F2
standard input/output
2 s, 256 MB
Submit  x881
G
standard input/output
2 s, 256 MB
Submit  x620
H
standard input/output
2 s, 256 MB
Submit  x158
Complete problemset
 
 
 
 
Questions about problems
 
 
  Question Answer
2022-12-17 19:19:32
Announcement
Problem G. Segment Covering
*****
**We are considering segments of reals, not of integers. For example, the union of segments [1, 2] and [3, 4] isn't equal to the segment [1, 4].**
2022-12-17 18:12:54
Announcement
Problem D. Same Count One
*****
**In the output section, constraints contained a typo: 1<=x_i, z_i<=n, 1<=z_i<=m. It is corrected now (to 1<=x_i, y_i<=n, 1<=z_i<=m). Refresh the page to see the changes**
2022-12-17 18:11:00
Announcement
Problem E. Two Chess Pieces
*****
**There was a small mistake in the explanation of the first sample: the first and second pieces were swapped. It's corrected now, refresh the page to see the changes.**
2022-12-17 18:03:27
Announcement
Problem D. Same Count One
*****
**There was a bug in the checker in this problem. It is corrected now; all submissions are rejudged. Sorry for this issue.**