fork download 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long int
  4. int main() {
  5.     ll t;
  6.     cin >> t;
  7.     while (t--) {
  8.         ll n;
  9.         cin >> n;
  10.         float ans = 0;
  11.         for (ll i = 1; i <= n; i++) {
  12.             ans += (1/(i * 1.0));
  13.         }
  14.         ans *= n;
  15.         cout << fixed << setprecision(2) << ans << "\n";
  16.     }
  17. }
  18.  
Success #stdin #stdout 0s 4260KB
comments (?)
stdin 
2
1
12
stdout 
1.00
37.24
https://ideone.com/4si2Bs
problem FAVDICE, based on SPOJ submission 26178021 (CPP14), 2020-06-21 17:36:59
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!