Thread: Matrices multiplication

I am unable to input the correct form for matrices multiplication. I have an exam tomorrow in which I need to use this. Please help me.

Code:

#include <stdio.h>
#include <conio.h>
int main()
{
    float a[10][10], b[10][10], c[10][10];
    int i, j, k, l, n=0, m=0, x=0, y=0, sum=0;
    printf("Enter the number of rows and collumns of the first matrix");
    scanf("%d %d", &n, &m);
    printf("What are the elements of the first matrix?\n");
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < m; j++)
        {
            scanf("%f", &a[i][j]);
        }
    }
    printf("Enter the number of rows and collumns of the second matrix");
    scanf("%d %d", &k, &l);
    if (m != l)
    {
        printf("these matrices cannot be multiplied");
    }
    else
    {
        printf("What are the elements of the second matrix?\n");
        for (i = 0; i < k; i++)
        {
            for (j = 0; j < l; j++)
            {
                scanf("%f", &b[k][l]);
            }
        }
        printf("Your matrices are \n");
        for (i = 0; i < n; i++)
        {
            for (j = 0; j < m; j++)
            {
                printf("%f ", a[i][j]);
                
            }
            printf("\n");
        }
        printf("\n");
        for (i = 0; i < k; i++)
        {
            for (j = 0; j < l; j++)
            {
                printf("%f ", b[k][l]);
            }
            printf("\n");
        }
        printf("\n");
        for (i = 0; i < n; i++)
        {
            for (j = 0; j < k; j++);
            {    sum = 0;
                for (x = 0; x < l; x++)
                {
                    sum += a[i][x] * b[x][j];

                }
                c[i][j] = sum;
                sum = 0;
            }
        }
        printf("\n");
        printf("The multiplication of the matrices is");
        for (i = 0; i < n; i++)
        {
            for (j = 0; j < l; j++)
            {
                printf("%f\t", c[i][j]);
                printf("\t");
            }
            printf("\n");
        }
        printf("\n");
    }
    getch();
}