Codeforces Round #647 (Div. 2) 题解

A. Johnny and Ancient Computerspa 查看题解 位运算 B. Johnny and His Hobbies.net 查看题解 暴力 C. Johnny and Another Rating Dropblog 查看题解 位运算 D. Johnny and Contributionci 查看题解 图+模拟 E. Johnny and Grandmasterget 查看题解

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