1491D - Zookeeper and The Infinite Zoo - CodeForces Solution

#include <bits/stdc++.h>
using namespace std;

int main(){
  int t, a, b;
  cin >> t;
  while(t--){
    cin >> a >> b;
    if(a<=b&& __builtin_popcount(a)>=__builtin_popcount(b)){
      bool y=1;
      vector<int>va, vb;
      for(int i=0; i<=30; i++)if(a&(1<<i))va.push_back(i);
      for(int i=0; i<=30; i++)if(b&(1<<i))vb.push_back(i);
      for(int i=0; i<vb.size(); i++)if(vb[i]<va[i])y=0;
      if(y) cout << "YES\n";
      else cout << "NO\n";
    }
    else cout << "NO\n";
  }
}