java编程题:鸡鸭猪狗4种动物,共30 条腿,要求输出所有可能的动物组合

java编程题:鸡鸭猪狗4种动物,共30 条腿,要求输出所有可能的动物组合

public class Test {

public static void main(String[] args) {

int count = 30;

int possibleNum = 1;

for (int i = 4; i <= count; i += 4) {

for (int j = 4; j <= count - i; j += 4) {

for (int x = 2; x <= count - (j + i); x += 2) {

if (x + j + i == count ) {

System.out.println("*************Possible " + possibleNum++ + ": ");

System.out.println("pig = " + (i/4));

System.out.println("dog = " + (j/4));

System.out.println("chicken = " + (x/2));

}

for (int y = 2; y <= count - (x + j + i); y += 2) {

if (y + x + j + i == count ) {

System.out.println("*************Possible " + possibleNum++ + ": ");

System.out.println("pig = " + (i/4));

System.out.println("dog = " + (j/4));

System.out.println("chicken = " + (x/2));

System.out.println("duck = " + (y/2));

}

}

}

}

}

}

}

请问鸡鸭可以有几种腿？

最简单直接的就是用4个for循环就行了