[BOJ] 28065 SW 수열 구하기 (JAVA)

https://www.acmicpc.net/problem/28065

28065번: SW 수열 구하기

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
	
    public static void main(String[] args) throws Exception {

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringBuilder sb = new StringBuilder();
        int N = Integer.parseInt(br.readLine());
        int left = 1;
        boolean flag = true;
        while (left <= N) {
            if (flag) sb.append(N--).append(" ");
            else sb.append(left++).append(" ");
            flag = !flag;
        }

        System.out.print(sb);

    }
	
}