What will be the output

Question

#include <stdio.h>

int main() {

const int* ptr;
int* ptr1;
int a=10;
const int p=20;
ptr=a;
ptr1=p;

printf(ptr);
printf(ptr1);
return 0;
}

Answer 1

There will be no output because printf() is not used like this in C language. Another reason is ptr is a pointer type variable that will store address not value.
So it would be better if you use like this-
ptr = &a;
printf ("%d",*ptr);