C Program for Matrix Multiplication

#include<stdio.h>

int main()
{
    int a[10][10],b[10][10],c[10][10],i,j,k,r1,c1,r2,c2;
    int sum=0;

    printf("Enter number of rows and columns of first matrix (MAX 10)\n");
    scanf("%d%d",&r1,&c1);
    printf("Enter number of rows and columns of second matrix MAX 10)\n");
    scanf("%d%d",&r2,&c2);
    if(r2==c1)
    {

        printf("\n Enter First Matrix:");

        for(i=0; i<r1; i++)
        {
            for(j=0; j<c1; j++)
                scanf("%d",&a[i][j]);
        }

        printf("\n Enter Second Matrix: ");
        for(i=0; i<r2; i++)
        {
            for(j=0; j<c2; j++)
                scanf("%d",&b[i][j]);
        }

        printf("The First Matrix Is: \n");
        //print the first matrix
        for(i=0; i<r1; i++)
        {
            for(j=0; j<c1; j++)
                printf(" %d ",a[i][j]);
            printf("\n");
        }

        printf("The Second Matrix Is:\n");
        // print the second matrix
        for(i=0; i<r2; i++)
        {
            for(j=0; j<c2; j++)
                printf(" %d ",b[i][j]);
            printf("\n");
        }


        printf("Multiplication of the Matrices:\n");

        for(i=0; i<r1; i++)
        {
            for(j=0; j<c2; j++)
            {
                c[i][j]=0;
                for(k=0; k<r1; k++)
                    c[i][j]+=a[i][k]*b[k][j];
                printf("%d  ",c[i][j]);
            }
            printf("\n");
        }

    }
    else
    {
        printf("Matrix Multiplication is Not Possible");
    }
    return 0;
}

OUTPUT:

Enter number of rows and columns of first matrix (MAX 10)
3
3
Enter number of rows and columns of second matrix MAX 10)
3
3

 Enter First Matrix:2 2 2 2 2 2 2 2 2

 Enter Second Matrix: 3 3 3 3 3 3 3 3 3
The First Matrix Is:
 2  2  2
 2  2  2
 2  2  2
The Second Matrix Is:
 3  3  3
 3  3  3
 3  3  3
Multiplication of the Matrices:
18  18  18
18  18  18
18  18  18