Login
Register
QOJ.ac
QOJ
QOJ
Contests
Category
Problems
Submissions
Hack!
Blogs
PKU v. THU (Preliminary Round 2)
Time Limit: 8 s
Memory Limit: 2048 MB
Interactive
NWERC 2021
B. Boredom Buster
Statistics
Statement
Submit
Back to the contest
Submit