17_matrix_mul_variable.c

#include <stdio.h>
int main() {
 int a[3][3], b[3][3], c[3][3] = {0};
;
 for (int i = 0; i < 3; i++) {
 for (int j = 0; j < 3; j++) {
 scanf("%d", &a[i][j]);
 }
 }
 for (int i = 0; i < 3; i++) {
 for (int j = 0; j < 3; j++) {
 scanf("%d", &b[i][j]);
 }
 }
 for (int i = 0; i < 3; i++) {
 for (int j = 0; j < 3; j++) {
 for (int k = 0; k < 3; k++) {
 c[i][j] = c[i][j] + (a[i][k] * b[k][j]);
 }
 }
 }
 for (int i = 0; i < 3; i++) {
 for (int j = 0; j < 3; j++) {
 printf("%d ", c[i][j]);
 }
 printf("\n");
 }
 return 0;
}