_QWOiNYUIVMPFSBKLiGSMAP_'s blog

By _QWOiNYUIVMPFSBKLiGSMAP_, history, 7 years ago, In English

Could anyone explain to me why this solution for this problem is true problem http://codeforces.net/contest/313/problem/E Solution http://codeforces.net/contest/313/submission/9096673

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