func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long double n;     int m;     cin >> n >> m;     long sum = n;     long double newsum = 0.0;     for (int i = 0; i < n; i++) {       newsum += pow((long double)i / (long double)n, m);     }     cout << sum - newsum;   }   