【杭电ACM】1.2.2 Climbing Worm

【杭电ACM】1.2.2  Climbing Worm

http://acm.hdu.edu.cn/game/entry/problem/show.php?chapterid=1&sectionid=2&problemid=4

 

#include <iostream>
using namespace std;

int main(){
    int n, u, d, count;
    while(cin >> n >> u >> d){
        if(n == 0){ 
            break;    
        }
        count = 1;
        n -= u;
        while(n > 0){
            n += d;
            n -= u;
            count += 2;
        }
        cout << count << endl;
    }

    return 0;
}