Codeforces - 379A New Year Candles

The following program is my ACcepted code for Codeforces -379A .
It's a for everybody to learn and discuss.
If there is any mistake or comment, please let me know.  :D

此乃Codeforces 379A 的AC code!

歡迎一同討論學習，如有錯誤與任何建議請留言 : )

點這裡看題目 Click here to see this Problem!
點這裡看中文翻譯題目!

//This program is for Codeforces 379A New Year Candles
//題目來源 Problem link: http://codeforces.com/problemset/problem/379/A

#include<stdio.h>
#include<stdlib.h>

int main()
{
    int a, b;
    int ans, left, tmp;
 
    while(scanf("%d %d", &a, &b) != EOF)
    {
        ans = 0;
        left = 0;//indicate went out candles
     
     
        do{
            if(left >= b)
            {
                tmp = left % b;
                a = left / b;
                left = tmp;
            }
                     
            ans += a;
            left = left + a;
         
            //printf("ans:%d   a:%d   left:%d\n", ans, a, left);
        }while(left >= b);
     
        printf("%d\n", ans);
    }
    return 0;
}

Please feel free to use it after adding this blog as an reference. (http://autekroy.blogspot.tw) If there is any mistake or comment, please let me know. :D 

歡迎使用與分享任何內容，但請記得標示此部落格為出處。(http://autekroy.blogspot.tw/) 如果有發現任何的錯誤與建議請留言或跟我連絡。 : )