11/11/24 03:13:22.18
>>610
#include <stdio.h>
#define f(x) for (x = 0; x < 3; x++) {
int main(void)
{
int matrix_a[3][3]={{1,2,3},{4,5,6},{7,8,9}};/*行列A*/
int matrix_b[3][3]={{10,11,12},{13,14,15},{16,17,18}};/*行列B*/
int matrix_multiply_a_by_b[3][3]={{0,0,0},{0,0,0},{0,0,0}};/*計算結果代入用の行列*/
int i,j,k;
f(i)f(j)f(k)
matrix_multiply_a_by_b[i][j] = matrix_a[i][k] * matrix_b[k][j];
}}}
f(j)f(i)printf("%5d", matrix_multiply_a_by_b[i][j]);}
printf("\n");}
}