online judge Codeforces - 随笔分类(第23页) - qscqesze

Codeforces Round #339 (Div. 1) B. Skills 暴力二分

摘要：B. Skills 题目连接： http://www.codeforces.com/contest/613/problem/B Description Lesha plays the recently published new version of the legendary game hackn 阅读全文

posted @ 2016-02-25 16:07 qscqesze 阅读(399) 评论(0) 推荐(0) 编辑

Educational Codeforces Round 6 F. Xors on Segments 暴力

摘要：F. Xors on Segments 题目连接： http://www.codeforces.com/contest/620/problem/F Description You are given an array with n integers ai and m queries. Each qu 阅读全文

posted @ 2016-02-25 15:30 qscqesze 阅读(385) 评论(0) 推荐(0) 编辑

Educational Codeforces Round 6 D. Professor GukiZ and Two Arrays 二分

摘要：D. Professor GukiZ and Two Arrays 题目连接： http://www.codeforces.com/contest/620/problem/D Description Professor GukiZ has two arrays of integers, a and 阅读全文

posted @ 2016-02-25 15:00 qscqesze 阅读(616) 评论(0) 推荐(0) 编辑

Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) F. Double Knapsack 鸽巢原理构造

摘要：F. Double Knapsack 题目连接： http://www.codeforces.com/contest/618/problem/F Description You are given two multisets A and B. Each multiset has exactly n 阅读全文

posted @ 2016-02-24 15:32 qscqesze 阅读(373) 评论(0) 推荐(0) 编辑

Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) E. Robot Arm 线段树

摘要：E. Robot Arm 题目连接： http://www.codeforces.com/contest/618/problem/E Description Roger is a robot. He has an arm that is a series of n segments connecte 阅读全文

posted @ 2016-02-24 11:04 qscqesze 阅读(448) 评论(0) 推荐(0) 编辑

Codeforces Round #341 (Div. 2) D. Rat Kwesh and Cheese 数学

摘要：D. Rat Kwesh and Cheese 题目连接： http://www.codeforces.com/contest/621/problem/D Description Wet Shark asked Rat Kwesh to generate three positive real nu 阅读全文

posted @ 2016-02-23 22:08 qscqesze 阅读(387) 评论(0) 推荐(0) 编辑

AIM Tech Round (Div. 1) D. Birthday 数学暴力

摘要：D. Birthday 题目连接： http://www.codeforces.com/contest/623/problem/D Description A MIPT student named Misha has a birthday today, and he decided to celeb 阅读全文

posted @ 2016-02-23 20:39 qscqesze 阅读(312) 评论(0) 推荐(0) 编辑

AIM Tech Round (Div. 1) C. Electric Charges 二分

摘要：C. Electric Charges 题目连接： http://www.codeforces.com/contest/623/problem/C Description Programmer Sasha is a student at MIPT (Moscow Institute of Physi 阅读全文

posted @ 2016-02-23 13:27 qscqesze 阅读(360) 评论(0) 推荐(0) 编辑

Codeforces Round #342 (Div. 2) E. Frog Fights set 模拟

摘要：E. Frog Fights 题目连接： http://www.codeforces.com/contest/625/problem/E Description stap Bender recently visited frog farm and was inspired to create his 阅读全文

posted @ 2016-02-22 23:59 qscqesze 阅读(473) 评论(0) 推荐(1) 编辑

Educational Codeforces Round 7 F. The Sum of the k-th Powers 拉格朗日插值法

摘要：F. The Sum of the k th Powers 题目连接： http://www.codeforces.com/contest/622/problem/F Description There are well known formulas: , , . Also mathematicia 阅读全文

posted @ 2016-02-22 14:55 qscqesze 阅读(859) 评论(3) 推荐(1) 编辑

HDU 5634 Rikka with Phi 线段树

摘要：Rikka with Phi 题目连接： http://acm.hdu.edu.cn/showproblem.php?pid=5634 Description Rikka and Yuta are interested in Phi function (which is known as Euler 阅读全文

posted @ 2016-02-22 13:23 qscqesze 阅读(404) 评论(0) 推荐(0) 编辑

Codeforces Round #343 (Div. 2) E. Famil Door and Roads lca 树形dp

摘要：E. Famil Door and Roads 题目连接： http://www.codeforces.com/contest/629/problem/E Description Famil Door’s City map looks like a tree (undirected connecte 阅读全文

posted @ 2016-02-22 00:55 qscqesze 阅读(523) 评论(0) 推荐(0) 编辑

Codeforces Round #343 (Div. 2) D. Babaei and Birthday Cake 线段树维护dp

摘要：D. Babaei and Birthday Cake 题目连接： http://www.codeforces.com/contest/629/problem/D Description As you know, every birthday party has a cake! This time, 阅读全文

posted @ 2016-02-21 22:55 qscqesze 阅读(485) 评论(0) 推荐(0) 编辑

Codeforces Round #343 (Div. 2) C. Famil Door and Brackets dp

摘要：C. Famil Door and Brackets 题目连接： http://www.codeforces.com/contest/629/problem/C Description As Famil Door’s birthday is coming, some of his friends ( 阅读全文

posted @ 2016-02-21 22:46 qscqesze 阅读(436) 评论(0) 推荐(1) 编辑

Codeforces Round #343 (Div. 2) B. Far Relative’s Problem 暴力

摘要：B. Far Relative’s Problem 题目连接： http://www.codeforces.com/contest/629/problem/B Description Famil Door wants to celebrate his birthday with his friend 阅读全文

posted @ 2016-02-21 22:15 qscqesze 阅读(332) 评论(0) 推荐(0) 编辑

Codeforces Round #343 (Div. 2) A. Far Relative’s Birthday Cake 水题

摘要：A. Far Relative’s Birthday Cake 题目连接： http://www.codeforces.com/contest/629/problem/A Description Door's family is going celebrate Famil Doors's birth 阅读全文

posted @ 2016-02-21 22:04 qscqesze 阅读(435) 评论(0) 推荐(0) 编辑

Educational Codeforces Round 8 F. Bear and Fair Set 最大流

摘要：F. Bear and Fair Set 题目连接： http://www.codeforces.com/contest/628/problem/F Description Limak is a grizzly bear. He is big and dreadful. You were chill 阅读全文

posted @ 2016-02-21 20:58 qscqesze 阅读(326) 评论(0) 推荐(0) 编辑

Educational Codeforces Round 8 E. Zbazi in Zeydabad 树状数组

摘要：E. Zbazi in Zeydabad 题目连接： http://www.codeforces.com/contest/628/problem/D Description A tourist wants to visit country Zeydabad for Zbazi (a local ga 阅读全文

posted @ 2016-02-21 18:24 qscqesze 阅读(346) 评论(0) 推荐(0) 编辑

Educational Codeforces Round 8 D. Magic Numbers 数位DP

摘要：D. Magic Numbers 题目连接： http://www.codeforces.com/contest/628/problem/D Description Consider the decimal presentation of an integer. Let's call a numbe 阅读全文

posted @ 2016-02-21 13:52 qscqesze 阅读(564) 评论(0) 推荐(0) 编辑

Educational Codeforces Round 8 C. Bear and String Distance 贪心

摘要：C. Bear and String Distance 题目连接： http://www.codeforces.com/contest/628/problem/C Description Limak is a little polar bear. He likes nice strings — st 阅读全文

posted @ 2016-02-21 13:45 qscqesze 阅读(470) 评论(0) 推荐(0) 编辑

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