source_code: import java.util.*;
   public  class  AA{
  		public static void main(String[] args) {
  			Scanner sc=new Scanner(System.in);
  		    int t=0;
  		    if(sc.hasNextInt()) {
  		    	t=sc.nextInt();
  		    }
  		    while(t>0) {
  		    	t--;
  				 int n=sc.nextInt();
  				 String ans="NO";
  				 if(n%2==0) {
  					 int p=n/2;
  					 if(Math.ceil(Math.sqrt((double)p)) == Math.floor(Math.sqrt((double)p))){
  						 ans="YES";
  					 }
  					 else {
  						 if(n%4==0) {
  							 p=n/4;
  							 if(Math.ceil(Math.sqrt((double)p)) == Math.floor(Math.sqrt((double)p))){
  								 ans="YES";
  							 }
  						 }
  					 }
  				 }
  				 System.out.println(ans);
  		    }
  		}
    }