Java程序練習-Peters smokes

描述
Peter has n cigarettes. He smokes them one by one keeping all the butts. Out of k > 1 butts he can roll a new cigarette.
How many cigarettes can Peter have?

輸入
Input is a sequence of lines. Each line contains two integer numbers giving the values of n and k.
輸出
For each line of input, output one integer number on a separate line giving the maximum number of cigarettes that Peter can have.
樣例輸入
4 3
10 3
100 5
樣例輸出
5
14
124
參考代碼

1. import java.util.*;  
2. public class Main {  
3.     public static void main(String[] args) {  
4.         Scanner cin = new Scanner(System.in);  
5.         while(cin.hasNextInt()){  
6.             int n,k,c,t;  
7.             n = cin.nextInt();  
8.             k = cin.nextInt();  
9.             c = 0;  
10.             t = 0;  
11.             while(n > 0){  
12.                 c += n;  
13.                 t += n;  
14.                 n = t / k;  
15.                 t %= k;  
16.             }  
17.             System.out.println(c);  
18.         }  
19.     }  
20. }