HOJ 2869 Soda Surpler

http://acm.hit.edu.cn/hoj/problem/view?id=2869

一个人有e＋f个空瓶子

c个空瓶子可以换一瓶苏打水

求这个人可以喝几瓶苏打水

喝过的瓶子可以再换

#include <stdio.h>int main(){    int e, f, c, remain, sum;        while (scanf("%d %d %d", &e, &f, &c) != EOF)    {        sum = 0;        remain = e + f;        while (remain >= c)        {            sum += remain / c;            remain = remain / c + remain % c;        }        printf("%d\n", sum);    }        return 0;}