cigarettes
3000 ms | 内存限制: 65535
2
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?
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
上传者
rooot
#include<stdio.h>
int main()
{
int test,n,k,t,ans;
scanf("%d",&test);
while(test--)
{
scanf("%d%d",&n,&k);
ans=n;
while(n>=k)
{
t=n/k;
ans+=t;
n=n-t*k+t;
}
printf("%d\n",ans);
}
return 0;
}