Login
Register
QOJ.ac
QOJ
QOJ
Contests
Category
Problems
Submissions
Hack!
Blogs
PKU v. THU (Preliminary Round 2)
Time Limit: 5 s
Memory Limit: 512 MB
North American Contest 1
B. One More Problem About DFT
Statistics
Statement
Submit
Custom Test
Back to the contest
Submit
Run