백준 1181번: 단어 정렬 [문자열][정렬] -Java

https://www.acmicpc.net/problem/1181

1181번: 단어 정렬

 

사용자정의 정렬 쓸 수 있는지 기본예제급의 난이도

Java 코드 아래 참고하세요...

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.Comparator;
import java.util.StringTokenizer;

public class Main {

	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub

		//System.setIn(new FileInputStream("Test.txt"));
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		
		StringTokenizer st = new StringTokenizer(br.readLine());
		
		int N = Integer.parseInt(st.nextToken());
		String[] arr = new String[N];
		for (int i = 0; i < N; i++) {
			st = new StringTokenizer(br.readLine());
			arr[i]= st.nextToken();
		}
		
		Arrays.sort(arr, new Comparator<String>() {

			@Override
			public int compare(String o1, String o2) {
				if(o1.length() == (o2.length()))
					return o1.compareTo(o2);
				return o1.length() - o2.length();
			}
			
		});
		
		System.out.println(arr[0]);
		for (int i = 1; i < N; i++) {
			if(arr[i].equals(arr[i-1]))
				continue; //중복제거
			System.out.println(arr[i]);
		}
	}

}