题解 | #汽水瓶#
汽水瓶
http://www.nowcoder.com/practice/fe298c55694f4ed39e256170ff2c205f
while True: try: def number_count(n): count = 0 number = 0 if n < 2: number = 0 else: if n == 2: n = n + 1 if n % 3 == 0: number = int(n / 3) + number_count(int(n / 3)) else: number = int(n / 3) + number_count(int(n % 3 + n / 3)) return number count = number_count(int(input())) if count > 0: print(count) except: break