#include <bits/stdc++.h>   using namespace std;   const int MAXN = 500000 + 10;   int a[MAXN];   int n, m, ans, tp, tot;   int main() {     scanf( %d , &n);     for (int i = 1; i <= n; ++i) scanf( %d , a + i);     ans = n;     sort(a + 1, a + 1 + n);     for (int i = n / 2; i >= 1; --i)       if (a[ans] >= a[i] * 2) --ans;     printf( %d n , ans);   }   