hdu4920 Matrix multiplication Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 568 Accepted Submission(s): 225 Problem Description Given two matrices A and B of size n×n, find the product o…
矩阵相乘,采用一行的去访问,比采用一列访问时间更短,根据数组是一行去储存的.神奇小代码. Matrix multiplication Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 1476 Accepted Submission(s): 650 Problem Description Given two matrices A…
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…
Description You are given three n × n matrices A, B and C. Does the equation A × B = C hold true? Input The first line of input contains a positive integer n (n ≤ 500) followed by the the three matrices A, B and C respectively. Each matrix's descript…
先把两个矩阵全都mod3. S[i][j][k]表示第i(0/1)个矩阵的行/列的第k位是不是j(1/2). 然后如果某两个矩乘对应位上为1.1,乘出来是1: 1.2:2: 2.1:2: 2.2:1. 然后分这四种情况把bitset and 起来,然后用count()数一下个数,计算下对答案矩阵该位置的贡献即可. #include<cstdio> #include<bitset> using namespace std; #define N 801 int n,x; bitset&…
本题就是求两点间只经过n条边的最短路径,定义广义的矩阵乘法,就是把普通的矩阵乘法从求和改成了取最小值,把内部相乘改成了相加. 代码包含三个内容:广义矩阵乘法,矩阵快速幂,离散化: 1 #include<bits/stdc++.h> 2 using namespace std; 3 const int INF=0x3f3f3f3f; 4 const int N=120; 5 int Hash[1000005],cnt=0;//用于离散化 6 struct matrix{ 7 int m[N][N…
Matrix multiplication Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 820 Accepted Submission(s): 328 Problem Description Given two matrices A and B of size n×n, find the product of them. b…
Matrix multiplication Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Problem Description Given two matrices A and B of size n×n, find the…
Matrix Multiplication Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 17783 Accepted: 3845 Description You are given three n × n matrices A, B and C. Does the equation A × B = C hold true? Input The first line of input contains a posit…
各种TEL,233啊.没想到是处理掉0的情况就能够过啊.一直以为会有极端数据.没想到居然是这种啊..在网上看到了一个AC的奇妙的代码,经典的矩阵乘法,仅仅只是把最内层的枚举,移到外面就过了啊...有点不理解啊,复杂度不是一样的吗.. Matrix multiplication Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 640 …
Matrix Multiplication Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 18928 Accepted: 4074 Description You are given three n × n matrices A, B and C. Does the equation A × B = C hold true? Input The first line of input contains a posit…
题目链接:https://vjudge.net/problem/HDU-4965 Fast Matrix Calculation Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 2057 Accepted Submission(s): 954 Problem Description One day, Alice and Bob…
题目描述 In mathematics, matrix multiplication or matrix product is a binary operation that produces a matrix from two matrices with entries in a field, or, more generally, in a ring or even a semiring. The matrix product is designed for representing the…
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…
[ 矩 阵 乘 法 ] M a t r i x P o w e r S e r i e s [矩阵乘法]Matrix Power Series [矩阵乘法]MatrixPowerSeries Description Given a n × n n × n n×n matrix A A A and a positive integer k k k, find the sum S = A + A 2 + A 3 + . . . + A k S = A + A^2 + A^3 + ... + A^k…
Matrix multiplication Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 1775 Accepted Submission(s): 796 Problem Description Given two matrices A and B of size n×n, find the product of them.…
Problem Description Given two matrices A and B of size n×n, find the product of them. bobo hates big integers. So you are only asked to find the result modulo 3. Input The input consists of several tests. For each tests: The first line contains n (…
本文首发于个人博客https://kezunlin.me/post/1e37a6/,欢迎阅读最新内容! opencv and numpy matrix multiplication vs element-wise multiplication Guide opencv Matrix multiplication is where two matrices are multiplied directly. This operation multiplies matrix A of size [a…
Fibonacci Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 13677 Accepted: 9697 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…