https://web.mit.edu/sp.268/www/rubik.pdf Introduction to Group Theory and Permutation Puzzles March 17, 2009 Introduction Almost everyone has tried to solve a Rubik’s cube. The first attempt often ends in vain with only a jumbled mess of colored cubi…

http://acm.sdut.edu.cn/sdutoj/problem.php?action=showproblem&problemid=2606 Rubik’s cube Time Limit: 2000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述     Flabby is addicted to Rubik’s cube. He has many kinds of Rubik’s cube and plays them well. He can…

暴力模拟就好了.... vim写代码真费事,手都写酸了... Rubik's Cube Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 638   Accepted: 324 Description Background  Rummaging through the stuff of your childhood you find an old toy which you identify as the famous Ru…

Rubik's Cube 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5836 Description As we all know, Zhu is the wisest man. When Liao was ninety-nine years old, the Zhu appeared to him and said, "I am God Almighty; walk before me and be blameless. I will co…

http://acm.hdu.edu.cn/showproblem.php?pid=3459 Rubik 2×2×2 Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 327670/327670 K (Java/Others) Total Submission(s): 654    Accepted Submission(s): 234 Special Judge Problem Description Sonny is proba…

1818: squee_spoon and his Cube VI Time Limit: 1 Sec  Memory Limit: 128 MB Submit: 77  Solved: 22SubmitStatusWeb Board Description 市面上最常见的魔方,是三阶魔方,英文名为Rubik's Cube,以魔方的发明者鲁比克教授的名字命名.另外,二阶魔方叫Pocket Cube,它只有2*2*2个角块,通常也就比较小:四阶魔方叫Revenge Cube,这是因为就算你好不容易…

Pocket Cube Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 19    Accepted Submission(s): 8 Problem Description The Pocket Cube, also known as the Mini Cube or the Ice Cube, is the 2 × 2 × 2 eq…

Pocket Cube http://acm.hdu.edu.cn/showproblem.php?pid=5983 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2852    Accepted Submission(s): 1066 Problem Description The Pocket Cube, also known as…

Pocket Cube 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5292 Description Pocket Cube is the 2×2×2 equivalent of a Rubik's Cube(3×3×3). The cube consists of 8 pieces, all corners. (from wiki) It was a Pocket Cube. Unfortunately, the Cube fell to t…

市面上最常见的魔方,是三阶魔方,英文名为Rubik's Cube,以魔方的发明者鲁比克教授的名字命名.另外,二阶魔方叫Pocket Cube,它只有2*2*2个角块,通常也就比较小:四阶魔方叫Revenge Cube,这是因为就算你好不容易复原了三阶魔方,四阶魔方也会向你“复仇”:而五阶魔方叫Professor Cube,人们认为只有专家才能够复原这么复杂的魔方. 作为ACM(A Cube Master),squee_spoon准备为九阶正十二面体魔方命名,此时他的脑中浮现出一个长长的字符串S,…

只是更改了c++的配色,放出来与大家分享,因为大胆地采用了各种颜色,所以我把它取名叫做Rubik,因为Rubik‘s cube也就是魔方,我本人是非常喜欢魔方的,然后也符合颜色丰富多彩的这个特征,希望大家能够喜欢.也欢迎大家在评论与我分享你们的配色 下载地址: http://onhdz331f.bkt.clouddn.com/Rubik.vssettings…

Problem Description Sonny is probably the only computer science Ph.D. student who cannot solve a Rubik's cube. One day, he came across a neat little 2×2×2 Rubik's cube, and thought, "Finally, here's a cube that's easy enough for me to do!" Nope,…

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 47 Accepted Submission(s): 12 Problem Description The Pocket Cube, also known as the Mini Cube or the Ice Cube, is the 2 × 2 × 2 equivalence of a Ru…

离散对数问题,英文是Discrete logarithm Problem,有时候简写为Discrete log,该问题是十几个开放数学问题(Open Problems in Mathematics, [0.a], [0.b])中的一个.为什么要从离散对数问题说起?因为后面的内容中会反复使用到,因此我们希望用独立的一节分析来消除理解上的不确定性. 0x01 背景 对数\(\log_{b}(a)\)是由John Napier发明(1614)的符号([1],[2.a],[2.b]),选择不同的基底,就…

WebGL 是一项在网页浏览器呈现3D画面的技术,有别于过去需要安装浏览器插件,通过 WebGL 的技术,只需要编写网页代码即可实现3D图像的展示.WebGL 可以为 Canvas 提供硬件3D加速渲染,这样 Web 开发人员就可以借助系统显卡来在浏览器里更流畅地展示3D场景和模型了.在这篇文章中20个不可思议的 WebGL 示例来增强你对于这个新技术的理解. 1. Aquarium Image Source:www.webglsamples.org Created by Greggman an…

A.Relic Discovery_hdu5982 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 57    Accepted Submission(s): 49 Problem Description Recently, paleoanthropologists have found historical remains on an…

关于魔方 魔方英文名字叫做Rubik's Cube,是由匈牙利建筑学教授和雕塑家Ernő Rubik于1974年发明,最初叫做Magic Cube(这大概也是中文名字的来历吧),1980年Ideal Toys公司开始销售此玩具,并将名字改为Rubik's Cube. 魔方在80年代最为风靡,至今未衰.截至2009年1月,魔方在全世界已经售出了3亿五千多万个.最常见的魔方是三阶魔方,由27个小方块构成,共三层,每层9个小方块.我的Demo实现的就是三阶魔方.其他的魔方种类有二阶,四阶及更高阶,也有…

杭电ACM分类: 1001 整数求和 水题1002 C语言实验题——两个数比较 水题1003 1.2.3.4.5... 简单题1004 渊子赛马 排序+贪心的方法归并1005 Hero In Maze 广度搜索1006 Redraiment猜想 数论:容斥定理1007 童年生活二三事 递推题1008 University 简单hash1009 目标柏林 简单模拟题1010 Rails 模拟题(堆栈)1011 Box of Bricks 简单题1012 IMMEDIATE DECODABILITY…

A. Case of the Zeros and Ones time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Andrewid the Android is a galaxy-famous detective. In his free time he likes to think about strings containing…

排名:http://acm.sdut.edu.cn/sd2012/2013.htm 解题报告:http://www.tuicool.com/articles/FnEZJb A.Rescue The Princess(几何,向量) B.The number of steps(记忆化搜索,概率dp) C.Boring Counting(划分树) D.A-Number and B-Number E.Alice and Bob F.Mountain Subsequences(dp) G.Rubik’s…

B. Case of Fake Numbers Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/556/problem/B Description Andrewid the Android is a galaxy-famous detective. He is now investigating a case of frauds who make fake copies of the famou…

A.Rescue The Princess 已知一个等边三角形的两个顶点A.B,求第三个顶点C,A.B.C成逆时针方向. 常规的解题思路就是用已知的两个点列出x,y方程,但这样求出方程的解的表达式比较复杂.更为简单的方法就是以A的坐标加A.C直线的角度求解,使用atan2函数求出A.B直线的角度再加上60就是A.C的角度,使用A.B求出等边三角形的边长. #include <cstdio> #include <cmath> #include <iostream> usi…

我们在高中的组合数学中常常会碰到有关涂色的问题,例如:用红蓝两种颜色给正方形的四个顶点涂色,会有几种不同的方案.在当时,我们下意识的认为,正方形的四个顶点是各不相同的,即正方形是固定的.而实际上我们知道,正方形是中心对称图形,我们在得到某种方案后,经过旋转,可能会得到之后我们得到的一个看似是全新的方案,实际上这种方案被重复计算了两次,那么,如果我们要讨论涂色问题中有多少本质不同的方案,应该如何解决呢?   今天介绍的Burnside引理,就是专门解决这类问题而生的.      基于对数据的更加抽…

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August11. A guide dog can guide a blind person. 导盲犬能给盲人引路.2. A guide dog is a dog especially trained to guide a blind person. 导盲犬是一种特别训练用来帮助盲人的.3. I have already fed my pet dog. 我已经喂过我的宠物狗了.4. He tried to console his friend when his pet dog died. 当朋友…

BFS广搜题目有时间一个个做下来 2009-12-29 15:09 1574人阅读 评论(1) 收藏 举报 图形graphc优化存储游戏 有时间要去做做这些题目,所以从他人空间copy过来了,谢谢那位大虾啦. pku 1175 Starry Night 题目地址:http://acm.pku.edu.cn/JudgeOnline/problem?id=1175 解法:BFS,要注意的是如何判断图形是一样的,我的做法就是计算每两个点的距离之和. 看:http://hi.baidu.com/doxi…

A : Rescue The Princess 题意: 给你平面上的两个点A,B,求点C使得A,B,C逆时针成等边三角形. 思路: http://www.cnblogs.com/E-star/archive/2013/06/11/3131563.html   向量的旋转. 直接套公式就行,或者我们可以找到等式解一个二元一次方程然后向量判断方向即可.我比较懒,就写了向量旋转的. #include <iostream> #include <cstdio> #include <cm…

A. Relic Discovery B. Pocket Cube C. Pocky D. Lucky Coins E. Fibonacci F. Lambda Calculus G. Coding Contest H. Pattern I. Travel Brochure J. Cliques K. Finding Hotels L. Tower Attack M. Generator and Monitor B. Pocket Cube 1000ms 262144K The Pocket C…

转载:from http://blog.csdn.net/qq_28236309/article/details/47818349 基础题:1000.1001.1004.1005.1008.1012.1013.1014.1017.1019.1021.1028.1029. 1032.1037.1040.1048.1056.1058.1061.1070.1076.1089.1090.1091.1092.1093. 1094.1095.1096.1097.1098.1106.1108.1157.116…

Who's Aunt Zhang Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 19    Accepted Submission(s): 16 Problem Description Aunt Zhang, well known as 张阿姨, is a fan of Rubik’s cube. One day she buys a…