Hi, Codeforces!
I'm looking for some problems which C++ STL 'set' can be used effectively for.
Thanks!
Hi, Codeforces!
I'm looking for some problems which C++ STL 'set' can be used effectively for.
Thanks!
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http://codeforces.com/contest/558/problem/E
요문제는 어떠신가용
http://codeforces.com/problemset/problem/567/D
deleted
http://codeforces.com/contest/528/problem/A