题解 | #百钱买百鸡问题#

import java.util.Scanner;

    /**
     * HJ72 百钱买百鸡问题
     * 利用公式计算：
     * x+y+z = 100;
     * 5x + 3y +z/3 =100
     * z用x和y替换后得出：
     * 7x+4y=100
     */
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext()) {
            int n = scanner.nextInt();
            int x, y, z;
            for (x = 0; x <= 100 / 7; x++) {
                int i = x * 7;
                int j = 100 - x * 7;
                if (j % 4 == 0) {
                    System.out.println(x + " " + j / 4 + " " + (100 - x - j / 4));
                }
            }
        }
    }
}