Further information: https://codeforces.com/blog/entry/138804?#comment-1242632
QOJ.ac
QOJ
Time Limit:
2 s
Memory Limit:
512 MB
Total points:
120
#11437. Cipele
統計
この問題は以下のコンテストで使用されています：
This is a wrong problem. The intended solution is wrong or the statement is confusing. The problem is reserved
here for reference only. We do not recommend you to try to solve the problem.