http://www.cnblogs.com/keam37/p/3639294.html keam所有 转载请注明出处 Problem Description Give you two definitions tree and rooted tree. An undirected connected graph without cycles is called a tree. A tree is called rooted if it has a distinguished vertex r c…
Time Limit:3000MS Memory Limit:0KB Description Background Many areas of Computer Science use simple, abstract domains for both analytical and empirical studies. For example, an early AI study of planning and robotics (STRIPS) used a block world i…
作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 数学题 相似题目 参考资料 日期 题目地址:https://leetcode.com/problems/water-and-jug-problem/description/ 题目描述 You are given two jugs with capacities x and y litres. There is an infinite amount o…
Facebook Hacker Cup 2014 Qualification Round比赛Square Detector题的解题报告.单击这里打开题目链接(国内访问需要那个,你懂的). 原题如下: Square Detector Problem Description You want to write an image detection system that is able to recognize different geometric shapes. In the first ver…
题目链接:http://codeforces.com/problemset/problem/476/C 题目意思:给出两个数:a 和 b,要求算出 (x/b) / (x%b) == k,其中 k 的取值范围是 [1, a],找出满足所有正整数的 x 并求出所有 x 的和. 是不是觉得无从下手呢?我当时也是 = = .....看了整晚题解,算是看懂了... 首先设 d = x / b, m = x % b,那么整条式子就变成 d/m = k —> d = mk(1) (好快你就知道有啥用了…
2011 ACM-ICPC 成都赛区解题报告 首先对F题出了陈题表示万分抱歉,我们都没注意到在2009哈尔滨赛区曾出过一模一样的题.其他的话,这套题还是非常不错的,除C之外的9道题都有队伍AC,最终冠军7题,与我们的预期非常接近. Problem A: Alice and Bob 出题人:章雍哲 (特别感谢Evolution队对该题解法的贡献) 这道题正规的做法需要讨论各种情况: 1) 没有1的情形,很显然,只需讨论(sum+n)的奇偶性 2) 全1的情形,对1的数量模3…
C-C Radar Installation 解题报告 题目链接:http://acm.hust.edu.cn/vjudge/contest/view.action?cid=86640#problem/C 题目: Description Assume the coasting is an infinite straight line. Land is in one side of coasting, sea in the other. Each small island is…
[L4]N-Queens 解题报告 N-Queens Total Accepted: 16418 Total Submissions: 63309 My Submissions The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, return all distinct so…
Sort ColorsGiven an array with n objects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in the order red, white and blue. Here, we will use the integers 0, 1, and 2 to represent the color red, wh…
ACM-ICPC 2017 Asia HongKong 解题报告 任意门:https://nanti.jisuanke.com/?kw=ACM-ICPC%202017%20Asia%20HongKong 按AC次序: D - Card collection In an online game, a player can collect different types of power cards. Each power card can enable a player to have a uni…
Turn the pokers Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 108 Accepted Submission(s): 21 Problem Description During summer vacation,Alice stay at home for a long time, with nothing to…
[九度OJ]题目1124:Digital Roots 解题报告 标签(空格分隔): 九度OJ 原题地址:http://ac.jobdu.com/problem.php?pid=1124 题目描述: The digital root of a positive integer is found by summing the digits of the integer. If the resulting value is a single digit then that digit is the d…