Login
Register
QOJ.ac
QOJ
QOJ
Contests
Category
Problems
Submissions
Hack!
Blogs
PKU v. THU (Finals)
Time Limit: 1 s
Memory Limit: 256 MB
The 1st Universal Cup. Stage 20: India
N. Red Black Grid
Statistics
Statement
Submit
Custom Test
Back to the contest
Submit
Run