Login
Register
QOJ.ac
QOJ
QOJ
Contests
Category
Problems
Submissions
Hack!
Blogs
PKU v. THU (Preliminary Round 2)
Time Limit: 3 s
Memory Limit: 1024 MB
Qingyu & 花花 Contest
N. No!
Statistics
Statement
Submit
Custom Test
Back to the contest
This problem is prepared by
flower
and
Qingyu
.
Submit
Run