题意: 最简单的快速幂.给你两个数n和m,求n^m的最后一位: 解题思路: 额,快速幂就很简单了,这里只要最后一位可以一对每次运算都%10: 代码: #include<cstdio> #include<cstring> #include<algorithm> #include <iostream> using namespace std; #define N 100000 long long n,m; long long pow_(long long n,l…
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…
D. Iterated Linear Function time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Consider a linear function f(x) = Ax + B. Let's define g(0)(x) = x and g(n)(x) = f(g(n - 1)(x)) for n > 0. For…
Fibonacci Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 10521 Accepted: 7477 Description In the Fibonacci integer sequence, F0 = 0, F1 = 1, and Fn = Fn − 1 + Fn − 2 for n ≥ 2. For example, the first ten terms of the Fibonacci sequenc…
Description In the Fibonacci integer sequence, F0 = 0, F1 = 1, and Fn = Fn − 1 + Fn − 2 for n ≥ 2. For example, the first ten terms of the Fibonacci sequence are: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, … An alternative formula for the Fibonacci sequence is…
题目分析: 对于给出的n,求出斐波那契数列第n项的最后4为数,当n很大的时候,普通的递推会超时,这里介绍用矩阵快速幂解决当递推次数很大时的结果,这里矩阵已经给出,直接计算即可 #include<iostream> #include<stdio.h> using namespace std; ; struct mat{ ][]; }; mat operator * (mat a, mat b){ //重载乘号,同时将数据mod10000 mat ret; ; i < ; i++…
#include <iostream> using namespace std;const int MOD = 1000;//像这样的一个常量就应该专门定义一下 int PowMod(int a, int n)//a^n%MOD { int ret = 1; while(n) { if(n & 1) ret = ret * a % MOD; //变为二进制,然后就可以专门进行分解计算,十分的方便,要求是结合位运算一同使用 a = a * a % MOD; //这里要求特别的注意,因为是…
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…
任意门:http://acm.hdu.edu.cn/showproblem.php?pid=1575 Tr A Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 7572 Accepted Submission(s): 5539 Problem Description A为一个方阵,则Tr A表示A的迹(就是主对角线上各项的和),现要…