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.has...