汽水瓶 （C语言代码）

解题思路:





注意事项:
每次剩余的瓶子是换的汽水数加上余下空瓶子




参考代码:

#include<stdio.h>

int main() {

int bottle;

int water = 0;

scanf("%d", &bottle);

while (bottle != 0) {

water = 0;

while (bottle >= 3) {

water += bottle / 3;

bottle = bottle / 3 + (bottle % 3);

}

if (bottle == 2)water++;

printf("%d\n", water);

scanf("%d", &bottle);

}

return 0;

}