#include<iostream>
using namespace std;

    int fact(int j)
    {
        int facto = 1;
        if(j==0)
        {
            return facto;
        }
        else
        {
            for(int i=2;i<=j;i++)
            {
                facto = facto * i;
            }
            return facto ;
        }
    }


    int main()
    {

        int n, p ;
        float sum = 0, k ;
        cout << "Enter the value of n: " << endl;
        cin >> n;
        for(int i=0; i<n; i++)
        {
            p = fact(i);
            cout << p << endl;
            k = 1/p ;
            cout << k << endl;
            sum = sum + k;
        }
        cout << "Sum is: " << sum << endl;
        return 0;
    }

1) When I am giving 0 as input, I am getting 0(i.e. the value of sum) as output(but, I am expecting to get 1) and, when I am giving 1 as input, it is giving 1 as output(expecting 2 as output). Please help me in pointing out the loophole.

2) When I am giving 0 as input, it is not printing the values of 'p' and 'k' but any input greater than 0 is showing the values of 'p' and 'k' for each time it completes the loop. Why ??