cigarettes
时间限制:3000 ms | 内存限制:65535 KB
难度:2
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
来源
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?
#include<stdio.h>
int main()
{
int n;
scanf("%d",&n);
while(n--)
{
int a,b,c,d;
scanf("%d %d",&a,&b);
int sum=a;
while(a>=b)
{
c=a/b;
sum+=c;
a=a-c*b+c;
}
printf("%d\n",sum);
}
return 0;
}