YoungProgrammer

Lesson: 22
Problem: 1516
Title: Climbing Worm
Difficulty Level: 1.5
Date: FEB 27, 2009
Site: http://acm.tju.edu.cn/toj/

Very simple problem. I think you already solved 
this type of problems at your high school math classes.


Source Code:

#include<stdio.h>

void FindRes(int n, int u, int d) {

	int net = u - d;
	int min = n - u;

	int k = (min + net -1)/net;

	printf("%d\n",k*2+1);

}

int main() {
	int n, u, d;

	while(scanf("%d%d%d",&n,&u,&d) == 3) {

		if(!n&&!u&&!d) break;
		FindRes(n,u,d);

	}
	return 0;
}