题目94
cigarettes
时间限制：3000 ms | 内存限制：65535 KB
难度：2
描述
Tom has many cigarettes. We hypothesized that he has n cigarettes and smokes them
one by one keeping all the butts. Out of k > 1 butts he can roll a new cigarette.
Now，do you know how many cigarettes can Tom has?
输入
First input is a single line,it's n and stands for there are n testdata.then there are n lines ,each line contains two integer numbers giving the values of n and k.
输出
For each line of input, output one integer number on a separate line giving the maximum number of cigarettes that Peter can have.
样例输入
3
4 3
10 3
100 5
样例输出
5
14
124
1 #include<stdio.h> 2 int main(){ 3 int N; 4 scanf("%d",&N); 5 while(N--){ 6 int n,k,i,j,sum,t; 7 scanf("%d %d",&n,&k); 8 i=n; 9 sum=n; 10 while(i>=k){ 11 t=i/k; 12 j=i%k; 13 i=t+j; 14 sum=sum+t; 15 16 } 17 printf("%d ",sum); 18 } return 0; 19 }