백준 2869번

원본 : www.acmicpc.net/problem/2869

2869번: 달팽이는 올라가고 싶다

 

풀이

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Main {

	public static void main(String[] args) throws Exception {
		
		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
		BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(System.out));
		
		String str = reader.readLine();
		int a = Integer.parseInt(str.split(" ")[0]);
		int b = Integer.parseInt(str.split(" ")[1]);
		int c = Integer.parseInt(str.split(" ")[2]);
		
		int count = (int)Math.ceil((double)(c - a) / (double)(a - b));
		
		writer.write(String.valueOf(count + 1));
		
		writer.flush();
	}

}