Python 五人分鱼

以下是两种Python解决五人分鱼问题的方法：

方法一：

fish = 1
while True:
    total = fish
    enough = True
    for i in range(5):
        if (total - 1) % 5 == 0:
            total = (total - 1) // 5 * 4
        else:
            enough = False
            break
    if enough:
        print("至少有%d条鱼。" % fish)
        break
    fish += 1

方法二：

def five_fish(n, m):
    if n == 1:
        return m
    else:
        return five_fish(n - 1, m) / 0.8 + 1

x = int(input("一共有几人分鱼？"))
y = x + 1
while five_fish(x, y) != int(five_fish(x, y)):
    y += x
print("那么至少有%d条鱼。" % five_fish(x, y))