[백준 Java] 일반 수학 1 - 2869번: 달팽이는 올라가고 싶다

 

 

 

import java.io.*;
import java.util.StringTokenizer;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));

        StringTokenizer st = new StringTokenizer(br.readLine());
        int A = Integer.parseInt(st.nextToken());
        int B = Integer.parseInt(st.nextToken());
        int V = Integer.parseInt(st.nextToken());

        int days = (V - B) / (A - B);
        if ((V - B) % (A - B) != 0) { // 나머지가 존재하면 하루 더 필요
            days++;
        }

        bw.write(String.valueOf(days));

        br.close();
        bw.flush();
        bw.close();
    }
}