Problems
 
 
# Name    
A
standard input/output
1 s, 256 MB
Submit  x117
B
standard input/output
1 s, 256 MB
Submit  x77
C
standard input/output
1 s, 256 MB
Submit  x84
D
standard input/output
1 s, 256 MB
Submit  x56
E
standard input/output
1 s, 256 MB
Submit  x42
F
standard input/output
1 s, 256 MB
Submit  x35
G
standard input/output
1 s, 256 MB
Submit  x12
H
standard input/output
1 s, 256 MB
Submit  x9
I
standard input/output
1 s, 256 MB
Submit  x11
Complete problemset
 
 
 
 
Questions about problems
 
 
  Question Answer
2026-01-29 03:53:44
Problem B. Supply Chain
*****
Announcement
There are "buffers" between all pairs of consecutive friends. This means that friend i can finish a snowball and simply place it on the floor between friend i and friend i+1. Friend i+1 can then start processing a snowball as soon as the buffer to their left is not empty.