HDU 4523

很简单了，

当m>=3&&m<=n+p时是yes

import java.math.BigInteger;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner input=new Scanner(System.in);
		while(input.hasNext()){
			BigInteger n=input.nextBigInteger();
			BigInteger m=input.nextBigInteger();
			BigInteger p=input.nextBigInteger();
			if(m.compareTo(BigInteger.valueOf(3))>-1&&m.compareTo(n.add(p))<1){
				System.out.println("YES");
			}
			else
				System.out.println("NO");
		}
	}
}