Pointers

#include <stdio.h>
#include <stdlib.h>
int* add(int* a,int* b)
{
    int c= (*a)+(*b);
    printf("address of a in add = %d\n",&a);
    printf("address of b in add = %d\n",&b);
    printf("a in add points to= %d\n",a);
    printf("b in add points to= %d\n",b);
    printf("value of a in add = %d\n",*a);
    printf("value of b in add = %d\n",*b);


    printf("c in add = %d\n",c);
    printf("address of c in add = %d\n",&c);
    return &c;
}

int main()
{
    int a=2, b=4;
    int* ptr = add(&a,&b);
    /*
    printf("\n\n address of a in main = %d\n",&a);
    printf("address of b in main = %d\n",&b);
    printf("value of c=%d\n",*(ptr));
    */
    printf("Sum = %d",*ptr);
    return 0;
}