[백준] JAVA 1712: 손익분기점

https://www.acmicpc.net/problem/1712

1712번: 손익분기점

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Solution:

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main {
	public static void main(String[] args) throws IOException {
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st = new StringTokenizer(br.readLine()," ");
		int A = Integer.parseInt(st.nextToken());
		int B = Integer.parseInt(st.nextToken());
		int C = Integer.parseInt(st.nextToken());
		
		if(B>=C) {
			System.out.print(-1);
		}
		else {
			System.out.print(A/(C-B)+1);
		}
		
		br.close();
	}
}

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