[BOJ] 백준 2742번: 기찍 N (Java)

문제링크

https://www.acmicpc.net/problem/2742

2742번: 기찍 N

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나의코드

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

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));
        int num = Integer.parseInt(br.readLine());
        br.close();
        
        while(num > 0){
            bw.write(num + "\n");
            num--;
        }
        bw.flush();
        bw.close();
    }
}