题解 | #汽水瓶#
汽水瓶
https://www.nowcoder.com/practice/fe298c55694f4ed39e256170ff2c205f
def func(num):
q, r = divmod(num, 3)
k = q + r # 剩余的空瓶子
if k == 2:
q += 1
elif k > 2:
q += func(k)
return q
while True:
n = int(input())
if n == 0:
break
else:
print(func(n))
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