Program in C for multiplication of two matrices

Write a program in C for multiplication of two matrices

//Multiplication of Matrix

#include <stdio.h>

#include <conio.h>

int m1,n1,m2,n2,i,j,k,z[10][10]={0};

void value_sub(int a,int b,int arr[][10] )

{

            for(i=0;i<a;i++)

            {

                        for(j=0;j<b;j++)

                        {

                                    printf(“Mat[%d%d] = “,i+1,j+1);

                                    scanf(“%d”,&arr[i][j]);

                                    fflush(stdin);

                        }

                        printf(“”);

            }

}

void mat_mul(int a,int b,int arr[][10],int brr[][10])

{

            int k=0;

            for(i=0;i<a;i++)

            {

                        for(j=0;j<b;j++)

                        {

                                    for(k=0;k<a;k++)

                                                z[i][j]+=arr[i][k]*brr[k][j];

                                    printf(“%d\t”,z[i][j]);

                        }

                        printf(“\n\n”);

            }

}

int main()

{

            int A[10][10]={0},B[10][10]={0};

            printf(“Enter the column and row of first matrix(m x n)\n”);

            scanf(“%d%d”,&m1,&n1);

            printf(“Enter the column and row of second matrix(m x n)\n”);

            scanf(“%d%d”,&m2,&n2);

            printf(“\n\n”);

            if (n1==m2)

            {

                        value_sub(m1,n1,A);

                        printf(“\n\n”);

                        value_sub(m2,n2,B);

                        printf(“\n\n”);

                        mat_mul(m1,n2,A,B);

            }

            else

                        printf(“Matrix multiplication cannot be done”);

            getch();

}