import java.util.Arrays; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); char[] s = "VWXYZABCDEFGHIJKLMNOPQRSTU".toCharArray(); while (sc.hasNext()) { String st = sc.nex…

Problem Description Julius Caesar lived in a time of danger and intrigue. The hardest situation Caesar ever faced was keeping himself alive. In order for him to survive, he decided to create one of the first ciphers. This cipher was so incredibly sou…

The Hardest Problem Ever 链接:http://acm.hdu.edu.cn/showproblem.php?pid=1048 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 31307    Accepted Submission(s): 14491 Problem Description Julius Caesa…

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The Hardest Problem Ever Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u   Description Julius Caesar lived in a time of danger and intrigue. The hardest situation Caesar ever faced was keeping himself alive. In order for…

/* hdu 1402 A * B Problem Plus FFT 这是我的第二道FFT的题 第一题是完全照着别人的代码敲出来的,也不明白是什么意思 这个代码是在前一题的基础上改的 做完这个题,我才有点儿感觉,原来FFT在这里就是加速大整数乘法而已 像前一题,也是一个大整数乘法,然后去掉一些非法的情况 */ #pragma warning(disable : 4786) #pragma comment(linker, "/STACK:102400000,102400000") #in…

The Hardest Problem Ever Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 24039   Accepted: 13143 Description Julius Caesar lived in a time of danger and intrigue. The hardest situation Caesar ever faced was keeping himself alive. In orde…

HDU 4291 A Short problem(2012 ACM/ICPC Asia Regional Chengdu Online) 题目链接http://acm.hdu.edu.cn/showproblem.php?pid=4291 Description 给一个式子求结果.类似Fibonacci的公式g(n)=3*g(n-1)+g[n-2]. Input 给你n(1<=n<=1e18) Output 求g(g(g(n))) Sample Input 样例第一个就是0什么鬼,虽然没影响.…

题目链接:hdu 2993 MAX Average Problem 题意: 给一个长度为 n 的序列,找出长度 >= k 的平均值最大的连续子序列. 题解: 这题是论文的原题,请参照2004集训队论文<周源--浅谈数形结合思想在信息学竞赛中的应用> 这题输入有点大,要加读入优化才能过. #include<bits/stdc++.h> #define F(i,a,b) for(int i=a;i<=b;++i) using namespace std; int tot;…

题目链接:HDU - 5170GTY's math problem 题目描述 Description GTY is a GodBull who will get an Au in NOI . To have more time to learn algorithm knowledge, he never does his math homework. His math teacher is very unhappy for that, but she can't do anything beca…