one recursive approach to solve hdu 1016, list all permutations, solve N-Queens puzzle. reference: the video of stanford cs106b lecture 10 by Julie Zelenski https://www.youtube.com/watch?v=NdF1QDTRkck // hdu 1016, 795MS #include <cstdio> #include &l
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4662 MU Puzzle Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1296 Accepted Submission(s): 539 Problem Description Suppose there are the symbo
Clarke and five-pointed star Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5563 Description Clarke is a patient with multiple personality disorder. One day, Clarke turned into a learner of geometric. When he d
Matches Puzzle Game Problem Description As an exciting puzzle game for kids and girlfriends, the Matches Puzzle Game asks the player to find the number of possible equations A−B=C with exactly n (5≤n≤500) matches (or sticks).In these equations, A,B a
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1097 分析:简单题,快速幂取模, 由于只要求输出最后一位,所以开始就可以直接mod10. /*A hard puzzle Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 33036 Accepted Submission(s): 11821 Pr
A Number Puzzle Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 938 Accepted Submission(s): 276 Problem Description Lele 最近上课的时候都很无聊,所以他发明了一个数字游戏来打发时间.这个游戏是这样的,首先,他拿出几张纸片,分别写上0到9之间的任意数字(可重复写
Problem Description lcy gives a hard puzzle to feng5166,lwg,JGShining and Ignatius: gave a and b,how to know the a^b.everybody objects to this BT problem,so lcy makes the problem easier than begin.this puzzle describes that: gave a and b,how to know
Solve the puzzle, Save the world! Problem Description In the popular TV series Heroes, there is a tagline "Save the cheerleader, Save the world!". Here Heroes continues, "Solve the puzzle, Save the world!".Finally, alien invaders visit
Rotation Lock Puzzle Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1836 Accepted Submission(s): 580 Problem Description Alice was felling into a cave. She found a strange door with a numbe
以下引用自http://acm.hdu.edu.cn/discuss/problem/post/reply.php?postid=8466&messageid=2&deep=1 题意以及简单证明Posted by hncu1106101-王志盼 at 2012-10-19 16:35:42 on Problem 1098 有一个函数: f(x)=5*x^13+13*x^5+k*a*x给定一个非负的 k 值 求最小的非负的 a 值 使得对任意的整数x都能使 f(x) 被 65 整除. 每输入
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4662 题意: 初始字符串为"MI". 有三个操作: (1)将'M'之后的所有字符翻倍.For example: MIU to MIUIU. (2)将'III'变为一个'U'.For example: MUIIIU to MUUU. (3)删除'UU'.For example: MUUU to MU 给你一个字符串s,问你是否能将初始字符串"MI"通过一系列操作变为s.
Stars Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 13280 Accepted Submission(s): 5184 Problem Description Astronomers often examine star maps where stars are represented by points on a pl