func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, m;     cin >> n >> m;     int arr[m];     for (int i = 0; i < m; i++) {       int temp;       cin >> temp;       arr[i] = temp;     }     int middle = 1001;     sort(arr, arr + m);     for (int i = 0; i <= (m - n); i++) {       middle = min(arr[i + n - 1] - arr[i], middle);     }     cout << middle;   }   