Login
Register
QOJ.ac
QOJ
QOJ
Contests
Category
Problems
Submissions
Hack!
Blogs
PKU v. THU (Preliminary Round 2)
Time Limit: 4.0 s
Memory Limit: 512 MB
Hackable ✓
Yinchuan Regional 2020
J. Let's Play Jigsaw Puzzles!
Statistics
Statement
Submit
Custom Test
Back to the contest
This problem is prepared by
quailty
.
Submit
Run