global variable and pointer

 

///#include<stdio.h>

///int m,n,o,p;

///void abc(int a,int b)

///{

///    m=a+b;

///    n=a-b;

///    o=a*b;

///    p=a/b;

///}

//using pointer

void abc(int a,int b,int *sum,int *sub,int *mul,int *div)

{

    *sum=a+b;

    *sub=a-b;

    *mul=a*b;

   * div=a/b;

}

int main()

{

    int sum,sub,mul,div;

    int a,b;

    a=5;

    b=1;

    abc(a,b,&sum,&sub,&mul,&div);

//    sum=m;

//    sub=n;

//    mul=o;

//    div=p;

    printf("%d\n",sum);

    printf("%d\n",sub);

    printf("%d\n",mul);

    printf("%d\n",div);

    return 0;

}