http://codeforces.com/problemset/problem/698/C
Hi codeforces, though read the tutorial, I still don't understand it. Please anyone explain how to solve it in detail? What is the idea?
Thank you:D
understand problem LRU
http://codeforces.com/problemset/problem/698/C
Hi codeforces, though read the tutorial, I still don't understand it. Please anyone explain how to solve it in detail? What is the idea?
Thank you:D