func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long m, n;     cin >> m >> n;     double sum;     sum = m;     for (double i = m - 1; i > 0; i--) {       sum -= pow(i / m, n);     }     cout << fixed;     cout << setprecision(12) << sum <<   n ;     return 0;   }   