#include <bits/stdc++.h>   using namespace std;   #pragma comment(linker,  /stack:200000000 )   #pragma GCC optimize( Ofast )   #pragma GCC target( sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native )   int main() {     ios::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     int n;     cin >> n;     int arr[n];     for (int i = 0; i < (n); ++i) cin >> arr[i];     int ans = 1, idx = 1, cnt = 1;     while (idx < n) {       ans = (ans > cnt) ? ans : cnt;       if (arr[idx] <= 2 * arr[idx - 1])         ++cnt;       else         cnt = 1;       ++idx;     }     ans = (ans > cnt) ? ans : cnt;     cout << ans <<   n ;     return 0;   }   