Link

My code

import java.util.*;

public class Main 
{	
	private static Scanner cin;

	public static void main(String[] args)
	{	
		int numA,numB;////球员的数量
		int[] distA=new int[30];
		int[] distB=new int[30];
		
		while(true)
		{
			cin = new Scanner(System.in);
			
			numA=cin.nextInt();numB=cin.nextInt();
			
			if(numA==0 && numB==0) 
			{
				cin.close();
				return ;
			}
			
			for(int i=0;i<numA;i++) distA[i] = cin.nextInt();
			for(int i=0;i<numB;i++) distB[i] = cin.nextInt();
			
			Arrays.sort(distA,0,numA);
			Arrays.sort(distB,0,numB);
			
//			for(int num : distA) System.out.println(num);
			
			if(distA[0]<distB[1]) System.out.println("Y");
			else System.out.println("N");
		}
	}
}