这是我用c编写的一个很有趣的买汽水问题，1元钱可以买一瓶，俩个空瓶可以换一瓶，输入自己拥有的钱数，可以得到最终可以得到汽水瓶数。-This is the c written a very interesting buy soft drinks, a dollar can buy a bottle, two bottles, one can change the bottle, enter the number of its own money, can be eventually be the number of soda bottles.