Not understanding the return value from scanf

Question

I have the following C program, and I don't understand the return value from scanf.

#include <stdio.h>

int main()
{
    int p,n1,n2;

    p=scanf("%d %d",&n1, &n2);

    printf("%d", p);
    return 0;
}

p is assigned the return value from scanf.
When I provide values for n1 and n2, the value of p is always 2. I don't understand why the value is always 2 regardless of what numbers I provide for n1 and n2.

Answer 1

scanf returns the number of values read, which in your case is 2.