Untitled

// Online C compiler to run C program online
#include <stdio.h>
ADDITION(int a[][4], int b[][4], int n)
{
    int i,j,c[4][4];
    printf("\n Addition of Matrix is:\n");
   for(i=0;i<n;i++)
        for(j=0;j<n;j++)
            c[i][j]=a[i][j]+b[i][j];

    for(i=0;i<n;i++)
    {
        for(j=0;j<n;j++)
        {
            printf("%d ",c[i][j]);
        }
        printf("\n");
    }
}
SUBSTRACTION(int a[][4], int b[][4], int n)
{
    int i,j,c[4][4];
    printf("\n Substraction of Matrix is:\n");
   for(i=0;i<n;i++)
        for(j=0;j<n;j++)
            c[i][j]=a[i][j]-b[i][j];

    for(i=0;i<n;i++)
    {
        for(j=0;j<n;j++)
        {
            printf("%d ",c[i][j]);
        }
        printf("\n");
    }
}
MULTIPLICATION(int a[][4], int b[][4], int n)
{
    int i,j,k,c[4][4];
    printf("\n Multiplication of Matrix is:\n");
   for(i=0;i<n;i++)
   {
        for(j=0;j<n;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<n;j++)
        {
            printf("%d ",c[i][j]);
        }
        printf("\n");
    }
}

int main() 
{
   int a[4][4],b[4][4],c[4][4];
   int i,j,n,choice;
   char ch;
   printf("\n Enter size of matrix");
   scanf("%d",&n);
   printf("\n Enter the elenemts in 1st matrix");
   for(i=0;i<n;i++)
        for(j=0;j<n;j++)
            scanf("%d",&a[i][j]);
   printf("\n Enter the elenemts in 2nd matrix");
   for(i=0;i<n;i++)
        for(j=0;j<n;j++)
            scanf("%d",&b[i][j]);
    do
    {
        printf("\n 1. Addition");
        printf("\n 2. Substraction");
        printf("\n 3. Multiplication");
        printf("\n Enter Your choice");
        scanf("%d",&choice);
        switch(choice)
        {
            case 1: ADDITION(a,b,n);    break;
            case 2: SUBSTRACTION(a,b,n);    break;
            case 3: MULTIPLICATION(a,b,n);  break;
        }
        printf("\n Do You want to Continue Y or N");
        scanf("\n%c",&ch);
    }while(ch=='Y'||ch=='y');
    return 0;
}