poj 1575  Tr A 主题链接:http://acm.hdu.edu.cn/showproblem.php?pid=1575 题目大意: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),现要求Tr(A^k)%9973. 数据的第一行是一个T,表示有T组数据. 每组数据的第一行有n(2 <= n <= 10)和k(2 <= k < 10^9)两个数据.接下来有n行,每行有n个数据,每一个数据的范围是[0,9].表示方阵A的内容. 一个矩阵高速幂的裸题. 题解: #…

任意门:http://poj.org/problem?id=3233 Matrix Power Series Time Limit: 3000MS   Memory Limit: 131072K Total Submissions: 28619   Accepted: 11646 Description Given a n × n matrix A and a positive integer k, find the sum S = A + A2 + A3 + … + Ak. Input The…

Matrix Power Series Time Limit: 3000MS   Memory Limit: 131072K Total Submissions: 11954   Accepted: 5105 Description Given a n × n matrix A and a positive integer k, find the sum S = A + A2 + A3 + … + Ak. Input The input contains exactly one test cas…

Matrix Power Series Time Limit: 3000MS   Memory Limit: 131072K Total Submissions: 15417   Accepted: 6602 Description Given a n × n matrix A and a positive integer k, find the sum S = A + A2 + A3 + - + Ak. Input The input contains exactly one test cas…

Matrix Power Series Time Limit: 3000MS Memory Limit: 131072K Description Given a n × n matrix A and a positive integer k, find the sum S = A + A2 + A3 + - + Ak. Input The input contains exactly one test case. The first line of input contains three po…

Matrix Power Series   Description Given a n × n matrix A and a positive integer k, find the sum S = A + A2 + A3 + … + Ak. Input The input contains exactly one test case. The first line of input contains three positive integers n (n ≤ 30), k (k ≤ 109)…

Matrix Power Series [题目链接]Matrix Power Series [题目类型]二分等比求和 &题解: 这题我原来用vector写的,总是超时,不知道为什么,之后就改用数组了,照着别人的代码敲了一遍 [时间复杂度]O(logn) &代码: #include <cstdio> #include <bitset> #include <iostream> #include <set> #include <cmath&g…

Matrix Power Series Time Limit: 3000MS Memory Limit: 131072K Total Submissions: 19338 Accepted: 8161 Description Given a n × n matrix A and a positive integer k, find the sum S = A + A2 + A3 + - + Ak. Input The input contains exactly one test case. T…

Matrix Power Series Time Limit: 3000MS   Memory Limit: 131072K Total Submissions: 15739   Accepted: 6724 Description Given a n × n matrix A and a positive integer k, find the sum S = A + A2 + A3 + - + Ak. Input The input contains exactly one test cas…

职务地址:POJ 3233 题目大意:给定矩阵A,求A + A^2 + A^3 + - + A^k的结果(两个矩阵相加就是相应位置分别相加).输出的数据mod m. k<=10^9.     这道题两次二分,相当经典.首先我们知道,A^i能够二分求出. 然后我们须要对整个题目的数据规模k进行二分.比方,当k=6时,有:     A + A^2 + A^3 + A^4 + A^5 + A^6 =(A + A^2 + A^3) + A^3*(A + A^2 + A^3)     应用这个式子后,规模…