1516.cpp

来自「acm acmacmacmacmacmacmacmacmacmacmacmac」· C++ 代码 · 共 19 行

#include<iostream>
using namespace std;
int main(void)
{
	int n,u,d,time,x;
	while(cin>>n>>u>>d,(n!=0||u!=0||d!=0))
	{
	 time=0;
	 x=0;
	 while(1)
	 {
	  x+=u;time++;
	  if(x>=n)break;
	  x-=d;time++;
	 }
	 cout<<time<<endl;
	}
	return 0;
}