[백준] 1712번 손익분기점

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

1712번: 손익분기점

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📌 풀이

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
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;

        st = new StringTokenizer(br.readLine());
        br.close();
        List<Integer> arr = new ArrayList<>();

        while(st.hasMoreElements()){
            arr.add(Integer.parseInt(st.nextToken()));
        }

        int a = arr.get(0);
        if (arr.get(1) >= arr.get(2)) {
            System.out.println(-1);
        } else {
            int cnt = 1;
            while (true) {
                int b = arr.get(1);
                int c = arr.get(2);
                b *= cnt;
                c *= cnt;
                if(a < (c-b)) {
                    System.out.println(cnt);
                    break;
                }
                cnt += 1;
            }
        }
    }
}

 

조금 더 잘 할 수 있을꺼같은데...