题解 | #汽水瓶#
汽水瓶
https://www.nowcoder.com/practice/fe298c55694f4ed39e256170ff2c205f
import sys def buy(number): sum = 0 while True: if number == 2: sum += 1 break elif number == 1: break news = number // 3 number = number - (news) * 3 + news sum += news return sum groups = [] for line in sys.stdin: groups.append(int(line)) for i in groups[:-1]: print(buy(i))