java学习之鸡兔同笼

传统的鸡兔同笼问题：

java解决：使用穷举的思想

代码如下

import java.util.Scanner;

public class QiongJu {
static int chichen,habbit;
public static int qiongJu(int head,int foot){
int re=0,i,j;
for(i=0;i<=head;i++){
j = head-i;
if(i*2+j*4==foot){
re = 1;
chichen = i;
habbit = j;
}

}
return re;
}
public static void main(String []args){
int re,head,foot;
Scanner in =new Scanner(System.in);
head = in.nextInt();
foot = in.nextInt();
re =qiongJu(head, foot);
if(re==1){
System.out.println(chichen+","+habbit);
}
else {
System.out.println("error");
}
}
}