Factovisors Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 4431   Accepted: 1086 Description The factorial function, n! is defined thus for n a non-negative integer: 0! = 1 n! = n * (n-1)! (n > 0) We say that a divides b if there exists…

在学习循环控制结构的时候,我们经常会看到这样一道例题或习题.问n!末尾有多少个0?POJ 1401就是这样的一道题. [例1]Factorial (POJ 1401). Description The most important part of a GSM network is so called Base Transceiver Station (BTS). These transceivers form the areas called cells (this term gave the…

素数判定Miller_Rabin算法详解: http://blog.csdn.net/maxichu/article/details/45458569 大数因数分解Pollard_rho算法详解: http://blog.csdn.net/maxichu/article/details/45459533 然后是参考了kuangbin的模板: http://www.cnblogs.com/kuangbin/archive/2012/08/19/2646396.html 模板如下: //快速乘 (a…

题目链接 Description Given a big integer number, you are required to find out whether it's a prime number. Input The first line contains the number of test cases T (1 <= T <= 20 ), then the following T lines each contains an integer number N (2 <= N…

本题涉及的算法个人无法完全理解,在此提供两个比较好的参考. 原理 (后来又看了一下,其实这篇文章问题还是有的……有时间再搜集一下资料) 代码实现 #include <algorithm> #include <cmath> #include <cstdio> #include <cstdlib> #include <cstring> #include <iostream> using namespace std; #define ll…

Prime Test Time Limit: 6000MS   Memory Limit: 65536K Total Submissions: 27129   Accepted: 6713 Case Time Limit: 4000MS Description Given a big integer number, you are required to find out whether it's a prime number. Input The first line contains the…

传送门 Longge's problem Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 7327   Accepted: 2416 Description Longge is good at mathematics and he likes to think about hard mathematical problems which will be solved by some graceful algorithms.…

Halloween treats Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 7644   Accepted: 2798   Special Judge Description Every year there is the same problem at Halloween: Each neighbour is only willing to give a certain total number of sweets…

Find a multiple Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 7192   Accepted: 3138   Special Judge Description The input contains N natural (i.e. positive integer) numbers ( N <= 10000 ). Each of that numbers is not greater than 15000…

The Pilots Brothers' refrigerator Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 22286   Accepted: 8603   Special Judge Description The game “The Pilots Brothers: following the stripy elephant” has a quest where a player needs to open a…