Jzzhu has invented a kind of sequences, they meet the following property: You are given x and y, please calculate fn modulo 1000000007 (109 + 7). Input The first line contains two integers x and y (|x|, |y| ≤ 109). The second line contains a single i…
Jzzhu has invented a kind of sequences, they meet the following property: You are given x and y, please calculate fn modulo 1000000007 (109 + 7). Input The first line contains two integers x and y (|x|, |y| ≤ 109). The second line contains a single i…
题目链接: B. Jzzhu and Sequences time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Jzzhu has invented a kind of sequences, they meet the following property: You are given x and y, please calculat…
题目链接 题意: 思路: 直接拿别人的图,自己写太麻烦了~ 然后就可以用矩阵快速幂套模板求递推式啦~ 另外: 这题想不到或者不会矩阵快速幂,根本没法做,还是2013年长沙邀请赛水题,也是2008年Google Codejam Round 1A的C题. #include <bits/stdc++.h> typedef long long ll; const int N = 5; int a, b, n, mod; /* *矩阵快速幂处理线性递推关系f(n)=a1f(n-1)+a2f(n-2)+.…
题目链接:51nod 1113 矩阵快速幂 模板题,学习下. #include<cstdio> #include<cmath> #include<cstring> #include<algorithm> using namespace std; typedef long long ll; ; ; int n, m; struct Mat{//矩阵 ll mat[N][N]; }; Mat operator * (Mat a, Mat b){//一次矩阵乘法…
矩阵乘法,顾名思义矩阵与矩阵相乘, 两矩阵可相乘的前提:第一个矩阵的行与第二个矩阵的列相等 相乘原则: a b * A B = a*A+b*C a*c+b*D c d C D = c*A+d*C c*A+d*C 上代码 struct matrix { ll a[maxn][maxn]; }; matrix matrix_mul(matrix x,matrix y) { matrix temp; ;i<=n;i++) ;j<=n;j++) { tem…
http://acm.hdu.edu.cn/showproblem.php?pid=4965 2014 Multi-University Training Contest 9 1006 Fast Matrix Calculation Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 238 Accepted Submission(…
So Easy! Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2286 Accepted Submission(s): 710 Problem Description A sequence Sn is defined as:Where a, b, n, m are positive integers.┌x┐is the ceil…
fibonacci数列(二) 时间限制:1000 ms | 内存限制:65535 KB 难度:3 描述 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 alter…
Recursive sequence Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 30 Accepted Submission(s): 20 Problem Description Farmer John likes to play mathematics games with his N cows. Recently, the…
题目信息: 1471: Jiulianhuan 时间限制: 1 Sec 内存限制: 128 MB 提交: 95 解决: 22 题目描述 For each data set in the input print on a separate line, on the standa I think that you might have played the traditional Chinese ring game: The Chinese Linking Rings (here we call…
