Can someone tell me the C++ approach to this problem https://codeforces.net/contest/102/problem/B?
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Can someone tell me the C++ approach to this problem https://codeforces.net/contest/102/problem/B?
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The editorial is well explained. https://codeforces.net/blog/entry/2393
https://github.com/actium/cf/blob/master/0100/00/102b.cpp