YDDDD

2019年10月10日

摘要：链接: https://codeforces.com/contest/1209/problem/D 题意: The legendary Farmer John is throwing a huge party, and animals from all over the world are hang 阅读全文

posted @ 2019-10-10 01:20 YDDDD 阅读(226) 评论(0) 推荐(0) 编辑

Codeforces Round #584 C. Paint the Digits

摘要：链接: https://codeforces.com/contest/1209/problem/C 题意: You are given a sequence of n digits d1d2…dn. You need to paint all the digits in two colors so 阅读全文

posted @ 2019-10-10 01:16 YDDDD 阅读(208) 评论(0) 推荐(0) 编辑

Codeforces Round #584 B. Koala and Lights

摘要：链接: https://codeforces.com/contest/1209/problem/B 题意: It is a holiday season, and Koala is decorating his house with cool lights! He owns n lights, al 阅读全文

posted @ 2019-10-10 01:14 YDDDD 阅读(210) 评论(0) 推荐(0) 编辑

Codeforces Round #584 A. Paint the Numbers

摘要：链接: https://codeforces.com/contest/1209/problem/A 题意: You are given a sequence of integers a1,a2,…,an. You need to paint elements in colors, so that: 阅读全文

posted @ 2019-10-10 01:13 YDDDD 阅读(207) 评论(0) 推荐(0) 编辑

2019年10月9日

HDU-2296-Ring(AC自动机, DP)

摘要：链接: https://vjudge.net/problem/HDU 2296 题意: For the hope of a forever love, Steven is planning to send a ring to Jane with a romantic string engraved 阅读全文

posted @ 2019-10-09 14:15 YDDDD 阅读(135) 评论(0) 推荐(0) 编辑

HDU-2825-Wireless Password(AC自动机, 状压DP)

摘要：链接: https://vjudge.net/problem/HDU 2825 题意: Liyuan lives in a old apartment. One day, he suddenly found that there was a wireless network in the build 阅读全文

posted @ 2019-10-09 01:29 YDDDD 阅读(105) 评论(0) 推荐(0) 编辑

2019年10月8日

HDU-2243-考研路茫茫——单词情结(AC自动机, 矩阵快速幂)

摘要：链接: https://vjudge.net/problem/HDU 2243 题意: 背单词，始终是复习英语的重要环节。在荒废了3年大学生涯后，Lele也终于要开始背单词了。一天，Lele在某本单词书上看到了一个根据词根来背单词的方法。比如"ab",放在单词前一般表示"相反，变坏，离去"等。于阅读全文

posted @ 2019-10-08 23:45 YDDDD 阅读(157) 评论(0) 推荐(0) 编辑

Codeforces Round #585 (Div. 2) D. Ticket Game

摘要：链接: https://codeforces.com/contest/1215/problem/D 题意: Monocarp and Bicarp live in Berland, where every bus ticket consists of n digits (n is an even n 阅读全文

posted @ 2019-10-08 13:21 YDDDD 阅读(217) 评论(0) 推荐(0) 编辑

2019年10月7日

Codeforces Round #585 (Div. 2) C. Swap Letters

摘要：链接: https://codeforces.com/contest/1215/problem/C 题意: Monocarp has got two strings s and t having equal length. Both strings consist of lowercase Lati 阅读全文

posted @ 2019-10-07 23:32 YDDDD 阅读(147) 评论(0) 推荐(0) 编辑

Codeforces Round #585 (Div. 2) B. The Number of Products(DP)

摘要：链接: https://codeforces.com/contest/1215/problem/B 题意: You are given a sequence a1,a2,…,an consisting of n non zero integers (i.e. ai≠0). You have to c 阅读全文

posted @ 2019-10-07 23:29 YDDDD 阅读(113) 评论(0) 推荐(0) 编辑

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