用python编程解决鸡兔同笼问题

今天我们来用python3.7编写一个程序来帮助我们完成鸡兔同笼的问题，话不多说，直接来编程：

feet1 = 0
feet2 = 0
head = 0
rabbits = 0
chickens = 0

head = int(input('鸡兔同笼问题，请输入只数：'))
feet1 = int(input('请输入腿数：'))
#假设都是兔子，那么有 只数 X 4 条腿
feet2 = head * 4

feet2 = feet2 - feet1
#多出来的腿是鸡的
chickens = feet2 / 2
rabbits = head - chickens
print(str(rabbits),'只兔子')
print(str(chickens),'只鸡')
#如果只数不是整数或正数，打印 ‘ 题目出错 ’
if rabbits < 0 or chickens < 0:
    print('题目出错！')
    
rabbits = rabbits - rabbits // 1
chickens = chickens - chickens // 1
if rabbits != 0 or chickens != 0:
    print('题目出错！')