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文章目录Codeforces Round #655 (Div. 2)解题报告A - Omkar and Completion思路代码B - Omkar and Last Class of Math思路代码 Codeforces Round #655 (Div. 2)解题报告 A - Omkar and Completion 思路 一开始还在思考怎么构造，然后通篇没看见说构造的元素不能重复，那就全1好了…… 代码 // // Created by Visors on 2020/7/11. // #inclu

题面 题意 思路 代码 题面 B. Cormen — The Best Friend Of a Man time limit per test1 second memory limit per test256 megabytes input standard input output standard output Recently a dog was bought f

Codeforces Round #653 (Div. 3) A~E1解题报告，含机翻、思路、代码。

Codeforces Round #377 (Div. 2) 解题报告 Problem A. Buy a Shovel Problem B. Cormen — The Best Friend Of a Man