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2019年10月31日

Codeforces Round #596 (Div. 2, based on Technocup 2020 Elimination Round 2) C. p-binary

摘要：链接: https://codeforces.com/contest/1247/problem/C 题意: Vasya will fancy any number as long as it is an integer power of two. Petya, on the other hand, 阅读全文

posted @ 2019-10-31 16:58 YDDDD 阅读(93) 评论(0) 推荐(0) 编辑

Codeforces Round #596 (Div. 2, based on Technocup 2020 Elimination Round 2) B2. TV Subscriptions (Hard Version)

摘要：链接: https://codeforces.com/contest/1247/problem/B2 题意: The only difference between easy and hard versions is constraints. The BerTV channel every day 阅读全文

posted @ 2019-10-31 16:56 YDDDD 阅读(108) 评论(0) 推荐(0) 编辑

Codeforces Round #596 (Div. 2, based on Technocup 2020 Elimination Round 2) A. Forgetting Things

摘要：链接: https://codeforces.com/contest/1247/problem/A 题意: Kolya is very absent minded. Today his math teacher asked him to solve a simple problem with the 阅读全文

posted @ 2019-10-31 16:54 YDDDD 阅读(129) 评论(0) 推荐(0) 编辑

2019年10月21日

2019ICPC区域赛（银川）总结

摘要： 2019ICPC银川作为第一次打区域赛的我，心情异常激动，加上学校给坐飞机（事实上赶飞机很痛苦）。热身赛很难受，oj上不去，写AC自动机输入没写好。。现场赛，开场直觉倒着看，发现签到。然后看B，先想到了正解，但是不知怎么就去想了另一种解，成功贡献罚时，然后突然就没了思路。同时换给学长写I，下阅读全文

posted @ 2019-10-21 20:39 YDDDD 阅读(1485) 评论(0) 推荐(0) 编辑

2019年10月16日

Educational Codeforces Round 74 (Rated for Div. 2) D. AB-string

摘要：链接: https://codeforces.com/contest/1238/problem/D 题意: The string t1t2…tk is good if each letter of this string belongs to at least one palindrome of l 阅读全文

posted @ 2019-10-16 15:51 YDDDD 阅读(177) 评论(0) 推荐(0) 编辑

Educational Codeforces Round 74 (Rated for Div. 2) C. Standard Free2play

摘要：链接: https://codeforces.com/contest/1238/problem/C 题意: You are playing a game where your character should overcome different obstacles. The current pro 阅读全文

posted @ 2019-10-16 15:48 YDDDD 阅读(140) 评论(0) 推荐(0) 编辑

Educational Codeforces Round 74 (Rated for Div. 2) B. Kill 'Em All

摘要：链接: https://codeforces.com/contest/1238/problem/B 题意: Ivan plays an old action game called Heretic. He's stuck on one of the final levels of this game 阅读全文

posted @ 2019-10-16 15:45 YDDDD 阅读(205) 评论(0) 推荐(0) 编辑

Educational Codeforces Round 74 (Rated for Div. 2) A. Prime Subtraction

摘要：链接: https://codeforces.com/contest/1238/problem/A 题意: You are given two integers x and y (it is guaranteed that x y). You may choose any prime integer 阅读全文

posted @ 2019-10-16 15:42 YDDDD 阅读(190) 评论(0) 推荐(0) 编辑

2019年10月13日

HDU-1160-FatMouse's Speed(DP, 最长递增子序列)

摘要：链接: https://vjudge.net/problem/HDU 1160 题意: FatMouse believes that the fatter a mouse is, the faster it runs. To disprove this, you want to take the d 阅读全文

posted @ 2019-10-13 14:45 YDDDD 阅读(110) 评论(0) 推荐(0) 编辑

POJ-1458-Common Subsequence(最长公共子序列)

摘要：链接: https://vjudge.net/problem/POJ 1458 题意: A subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given 阅读全文

posted @ 2019-10-13 13:17 YDDDD 阅读(152) 评论(0) 推荐(0) 编辑

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