C++,codeforces,2053A

// URL: https://codeforces.com/contest/2053/problem/A
#include <iostream>
void solve(){
    int n;std::cin>>n;
    bool flag = false;
    int a;std::cin>>a;
    for(int i = 1;i<n;++i){
        int temp;std::cin>>temp;
        if(!flag){
            if(2*a>temp && 2*temp>a){
                flag = true;
            }
            a = temp;
        }
    }
    if(flag){
        std::cout<<"YES"<<std::endl;
    }else{
        std::cout<<"NO"<<std::endl;
    }
}
int main(){
    int t;std::cin>>t;
    while(t--){
        solve();
    }
}