高精度+polya原理可以搞定 思路: 设边长为n的正方形,c种颜色.旋转只有 0,90,180,270度三种旋法.旋0度,则置换的轮换数为n*n旋90度,n为偶数时,则置换的轮换数为n*n/4,n为奇数,则置换的轮换数为(n*n-1)/4+1旋180度,n为偶数时,则置换的轮换数为n*n/2,n为奇数,则置换的轮换数为(n*n-1)/2+1旋270度,n为偶数时,则置换的轮换数为n*n/4,n为奇数,则置换的轮换数为(n*n-1)/4+1 反射 沿对角反射两种,沿对边中点连线反射两种n为偶数时…

hdu 1811 Rank of Tetris Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Description 自从Lele开发了Rating系统,他的Tetris事业更是如虎添翼,不久他遍把这个游戏推向了全球. 为了更好的符合那些爱好者的喜好,Lele又想了一个新点子:他将制作一个全球Tetris高手排行榜,定时更新,名堂要比福布斯富豪榜还响.关于如何排名,这个不用说都知道是根据R…

Count the string Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 8845    Accepted Submission(s): 4104 Problem Description It is well known that AekdyCoin is good at string problems as well as n…

自从Lele开发了Rating系统,他的Tetris事业更是如虎添翼,不久他遍把这个游戏推向了全球. 为了更好的符合那些爱好者的喜好,Lele又想了一个新点子:他将制作一个全球Tetris高手排行榜,定时更新,名堂要比福布斯富豪榜还响.关于如何排名,这个不用说都知道是根据Rating从高到低来排,如果两个人具有相同的Rating,那就按这几个人的RP从高到低来排. 终于,Lele要开始行动了,对N个人进行排名.为了方便起见,每个人都已经被编号,分别从0到N-1,并且编号越大,RP就越高. 同时L…

Rank of Tetris Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 12344    Accepted Submission(s): 3497 Problem Description 自从Lele开发了Rating系统,他的Tetris事业更是如虎添翼,不久他遍把这个游戏推向了全球. 为了更好的符合那些爱好者的喜好,Lele又想…

Count primes 题目连接: http://acm.split.hdu.edu.cn/showproblem.php?pid=5901 Description Easy question! Calculate how many primes between [1...n]! Input Each line contain one integer n(1 <= n <= 1e11).Process to end of file. Output For each case, output…

It is well known that AekdyCoin is good at string problems as well as number theory problems. When given a string s, we can write down all the non-empty prefixes of this string. For example:  s: "abab"  The prefixes are: "a", "ab&…

题目传送门:http://acm.hdu.edu.cn/showproblem.php?pid=6470 Count Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 301    Accepted Submission(s): 127 Problem Description Farmer John有n头奶牛.某天奶牛想要数一数有多少头奶牛…

Rank of Tetris Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 9267    Accepted Submission(s): 2668 Problem Description 自从Lele开发了Rating系统,他的Tetris事业更是如虎添翼,不久他遍把这个游戏推向了全球. 为了更好的符合那些爱好者的喜好,Lele又想…

Count the Buildings Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2521    Accepted Submission(s): 817 Problem Description There are N buildings standing in a straight line in the City, numbere…