Counting Cliques Time Limit: 8000/4000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 539    Accepted Submission(s): 204 Problem Description A clique is a complete graph, in which there is an edge between every pair…

Relative atomic mass Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 66    Accepted Submission(s): 59 Problem Description Relative atomic mass is a dimensionless physical quantity, the ratio of…

题目链接 题意 给定\(c_0,c_1,求c_n(c_0,c_1,n\lt 2^{31})\),递推公式为 \[c_i=c_{i-1}+2c_{i-2}+i^4\] 思路 参考 将递推式改写\[\begin{pmatrix}f(n)\\f(n-1)\\n^4\\n^3\\n^2\\n\\1\end{pmatrix}=\begin{pmatrix}1&2&1&4&6&4&1\\1&0&0&0&0&0&0\\0&a…

Recursive sequence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2882    Accepted Submission(s): 1284 Problem Description Farmer John likes to play mathematics games with his N cows. Recently,…

Recursive sequence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 249    Accepted Submission(s): 140 Problem Description Farmer John likes to play mathematics games with his N cows. Recently, t…

HDU 2604 Queuing (递推+矩阵快速幂) 这位作者讲的不错,可以看看他的 #include <cstdio> #include <iostream> #include <algorithm> #include <cmath> #include <cstring> using namespace std; const int N = 5; int msize, Mod; struct Mat { int mat[N][N]; }; M…

Thickest Burger Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 63    Accepted Submission(s): 60 Problem Description ACM ICPC is launching a thick burger. The thickness (or the height) of a piec…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5950 Farmer John likes to play mathematics games with his N cows. Recently, they are attracted by recursive sequences. In each turn, the cows would stand in a line, while John writes two positive numbers…

题目链接 F[1] = a, F[2] = b, F[i] = 2 * F[i-2] + F[i-1] + i ^ 4, (i >= 3) 现在要求F[N] 类似于斐波那契数列的递推式子吧, 但是N最大能到int的最大值, 直接循环推解不了 所以就得用矩阵快速幂咯 现在就看转移矩阵长什么样了 Mi表示要求的矩阵 转移矩阵用A表示 A * Mi = Mi+1 矩阵Mi里面至少得有 F[i-1] F[i-2] i ^ 4 Mi+1就相应的有 F[i] F[i-1] (i+1)^4 (i+1)^4 =…

Recursive sequence Farmer John likes to play mathematics games with his N cows. Recently, they are attracted by recursive sequences. In each turn, the cows would stand in a line, while John writes two positive numbers a and b on a blackboard. And the…