func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, kangaroo[500000];   int main() {     cin >> n;     for (int _n = n, i = 0; i < _n; ++i) cin >> kangaroo[i];     sort(kangaroo, kangaroo + n);     int middle = (n / 2) - !(n % 2);     int i = middle, j = n - 1;     while (i >= 0 && j > middle) {       if (kangaroo[i] * 2 <= kangaroo[j]) j--;       i--;     }     cout << j + 1 << endl;     return 0;   }   