HDU 1005 Number Sequence(数列) Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) [Description] [题目描述] A number sequence is defined as follows: f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7. Given A, B, an…

HDU 1005 Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u   Description A number sequence is defined as follows: f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7. Given A, B, and n, you are to calculate the v…

HDU 1005 Number Sequence(数论) Problem Description: A number sequence is defined as follows:f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7. Given A, B, and n, you are to calculate the value of f(n).   Input The input consists of multipl…

HDU - 1005 Number Sequence Problem Description A number sequence is defined as follows:f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7.Given A, B, and n, you are to calculate the value of f(n). Input The input consists of multiple test…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1005 思路:找规律题 #include<stdio.h> main() { ]; int a,b,n,i; while(scanf("%d%d%d",&a,&b,&n)!=EOF&&(a||b||n)) { s[]=; s[]=; ;i<=;i++) { s[i]=(a*s[i-]+b*s[i-])%; } printf(]); }…

Number Sequence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 175657    Accepted Submission(s): 43409 Problem Description A number sequence is defined as follows: f(1) = 1, f(2) = 1, f(n) = (A…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1005 题意: 数列{f(n)}: f(1) = 1, f(2) = 1, f(n) = ( A*f(n-1) + B*f(n-2) ) MOD 7 给定A.B.n,求f(n). (1<=n<=100,000,000) 题解: 大水题~ (*/ω＼*) 矩阵快速幂. 初始矩阵start: 特殊矩阵special: 所求矩阵ans: ans = start * special^(n-1) ans的第一…

http://www.51nod.com/onlineJudge/questionCode.html#!problemId=1126 http://acm.hdu.edu.cn/showproblem.php?pid=1005 注意上面一题和下面一题的区别,上面A,B可能取负数,但是mod跟c++中%是不一样的,mod只会得到非负数,两次跳进这个坑了. 然后就找周期,只要f[i-1]==1&&f[i]==1就可以跳出,然后i-2就是周期,输出n%(i-2)的时候,要注意如果等于0的话,其实…

题目:http://acm.hdu.edu.cn/showproblem.php?pid=1005 代码: #include<iostream> #include<stdio.h> #include<string.h> #include<algorithm> using namespace std; ; struct matrix { ][]; }; matrix mul(matrix a,matrix b) { int i,j,k; matrix c; m…

http://acm.hdu.edu.cn/showproblem.php?pid=1051 Problem Description There is a pile of n wooden sticks. The length and weight of each stick are known in advance. The sticks are to be processed by a woodworking machine in one by one fashion. It needs s…