C Program to Multiply Two Matrices Using Multi-dimensional Arrays

PROGRAM:

#include<stdio.h>

int main()

{

    int a[10][10],b[10][10],c[10][10],i,j,k,n,m;

    scanf("%d%d",&n,&m);

   

    for(i=0;i<n;i++)

    {

        for(j=0;j<m;j++)

        {

            scanf("%d",&a[i][j]);

        }

    }

    for(i=0;i<n;i++)

    {

        for(j=0;j<m;j++)

        {

            scanf("%d",&b[i][j]);

        }

    }

    for(i=0;i<n;i++)

    {

        for(j=0;j<m;j++)

        {

            c[i][j]=0;

            for(k=0;k<n;k++)

            {

                c[i][j]=c[i][j]+a[i][k]*b[k][j];

            }

        }

    }

   

    for(i=0;i<n;i++)

    {

        for(j=0;j<m;j++)

        {

            printf(" %d",c[i][j]);

        } printf("\n");

    }

}

OUTPUT:

3 3                                                                                                                     

4 5 6                                                                                                                   

1 2 3                                                                                                                   

4 6 7                                                                                                                   

                                                                                                                        

3 4 5                                                                                                                   

4 5 6                                                                                                                   

7 4 3                                                                                                                   

 74 65 68                                                                                                               

 32 26 26                                                                                                               

 85 74 77