#include <bits/stdc++.h>
using namespace std;
int main()
{
    int n=0, i=1;
    float S=1;
    while(1/n<=0.000002)
    {
        S=S+1/n;
        n=n+i;
        i++;
     }
     cout <<S;
}

Line 24: error: bits/stdc++.h: No such file or directory