Matrix Multiplication using C

Matrix Multiplication using C

#include<stdio.h> void matmul(int mat1[][], int mat2[][], int res[][], int m, int n, int q); void matinput(int mat[][], int x, int y); void matprint(int mat[][], int x, int y); int main() { int m, n, p, q, i, j, k; int mat1[10][10], mat2[10][10], res[10][10]; printf("Enter order of first matrix: "); scanf("%d %d", &m, &n); printf("Enter order of second matrix: "); scanf("%d %d", &p, &q); if(n == p) { printf("Enter elements of matrix 1: "); matinput(mat1, m, n); printf("Enter elements of matrix 2: "); matinput(mat2, p, q); matmul(mat1, mat2, res, m, q, n); matprint(res, m, q); } else { printf("Invalid input..."); } return 0; } void matinput(int mat[][10], int x, int y) { int i, j; for(i = 0; i < x; i++) { for(j = 0; j < y; j++) { scanf("%d", &mat[i][j]); } } } void matprint(int mat[10][10], int x, int y) { int i, j; printf("The resultant matrix is : \n"); for(i = 0; i < x; i++) { for(j = 0; j < y; j++) { printf("%d ", mat[i][j]); } printf("\n"); } } void matmul(int mat1[10][10], int mat2[10][10], int res[10][10], int x, int y, int z) { int i, j, k; for(i = 0; i < x; i++) { for(j = 0; j < y; j++) { res[i][j] = 0; for (k = 0; k < z; k++) { res[i][j] = res[i][j] + mat1[i][k] * mat2[k][j]; } } } }

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