百钱买百鸡问题

import java.util.Scanner;

public class ChickenAndMoney {

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		Integer n = scan.nextInt();
		if(n!=null)
			countChickenAndMoney();
	}

	private static void countChickenAndMoney() {
		for (int x = 0; x < 100; x++) {
			for (int y = 0; y < 100; y++) {
				for (int z = 0; z < 100; z++) {
					if((z % 3 ==0) && (x+y+z == 100) && (5*x+3*y+z/3 == 100))
						System.out.println(x + " " + y + " " +z);
				}
			}
		}
	}

}

注意：z能够被3整除

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