func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int m, n;     cin >> m >> n;     double ans = m;     double i = 1;     while (1) {       if (i >= m) break;       double j = (m - i) / m;       double k = 1;       int q = n;       while (q != 0) {         if (q & 1 == 1) k *= j;         q = q >> 1;         j *= j;       }       if (k <= 0.00000001) break;       ans -= k;       i++;     }     cout << ans << endl;   }   