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