public class Demo1 { public static void main(String[] args) { for (int x = 0; x < 20; x++) { for (int y = 0; y < 33; y++) { for (int z = 0; z <= 100; z=z+3) { if (5*x+3*y+z/3==100) { System.out.println("公鸡"+x+"只"+"母鸡"+y+"只"+"小鸡"+z+"只"); } } } } }}

穷举法 基础类型