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P3119 [USACO15JAN]草鉴定Grass Cownoisseur 题目描述 In an effort to better manage the grazing patterns of his cows, Farmer John has installed one way cow path 阅读全文
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牛客小白月赛16 小石的签到题 链接：https://ac.nowcoder.com/acm/contest/949/A来源：牛客网 题目描述 输入描述: 输出描述: 示例1 输入 "复制" ;) 输出 "复制" ;) 说明 示例2 输入 "复制" ;) 输出 "复制" ;) 说明 备注: 思路： 阅读全文
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Educational Codeforces Round 37 (Rated for Div. 2)C. Swap Adjacent Elements time limit per test 1 second memory limit per test 256 megabytes input sta 阅读全文
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G. List Of Integers time limit per test 5 seconds memory limit per test 256 megabytes input standard input output standard output Let's denote as L ( 阅读全文
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F. SUM and REPLACE time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Let D(x) be the number of 阅读全文
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Connected Components? "CodeForces 920E " You are given an undirected graph consisting of n vertices and edges. Instead of giving you the edges that ex 阅读全文