LearningNote

#include<stdio.h>
#define row 3
#define col 3
int main()
{

    int a[row][col]={1,2,3,
                               4,5,6,
                               7,8,9};

    int b[row][col]={9,8,7,
                               6,5,4,
                               3,2,1};

    int c[row][col]={0,0,0,
                              0,0,0,
                              0,0,0};

    int i,j,k;

    for(i=0;i<row;i++)
    {
        for(j=0;j<row;j++)
        {
            for(k=0;k<col;k++)
            {
                c[i][j]=c[i][j] + a[i][k]*b[k][j];
            }
        }
    }

    for(i=0;i<3;i++)
    {
        for(j=0;j<3;j++)
            printf("%d ",c[i][j]);
        printf("\n");
    }
}