[SW Expert Academy] [S/W 문제해결 기본] 5일차 - GNS (D3)

https://swexpertacademy.com/main/code/problem/problemDetail.do?problemLevel=3&contestProbId=AV14jJh6ACYCFAYD&categoryId=AV14jJh6ACYCFAYD&categoryType=CODE&problemTitle=&orderBy=PASS_RATE&selectCodeLang=ALL&select-1=3&pageSize=10&pageIndex=7

SW Expert Academy

 

HashMap 사용

import java.util.HashMap;
import java.util.Scanner;

class Solution {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int t = sc.nextInt();

		String list[] = { "ZRO", "ONE", "TWO", "THR", "FOR", "FIV", "SIX", "SVN", "EGT", "NIN" };

		for (int tc = 1; tc <= t; tc++) {
			String num = sc.next();

			int n = sc.nextInt();

			HashMap<String, Integer> map = new HashMap<>();

			for (int i = 0; i < n; i++) {
				String number = sc.next();
				map.put(number, map.getOrDefault(number, 0) + 1);
			}

			System.out.println("#" + tc);

			for (String word : list) {
				if (map.containsKey(word)) {
					int count = map.get(word);
					for (int i = 0; i < count; i++) {
						System.out.print(word + " ");
					}
				}
			}

			System.out.println();
		}
	}
}

 

ArrayList 사용

import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

class Solution {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int t = sc.nextInt();

		String list[] = { "ZRO", "ONE", "TWO", "THR", "FOR", "FIV", "SIX", "SVN", "EGT", "NIN" };

		for (int tc = 1; tc <= t; tc++) {
			String num = sc.next();

			int n = sc.nextInt();

			ArrayList<Integer> a = new ArrayList<>();

			for (int i = 0; i < n; i++) {
				String word = sc.next();

				for (int j = 0; j < list.length; j++) {
					if (list[j].equals(word)) {
						a.add(j);
						break;
					}
				}
			}
			
			Collections.sort(a);
			
			System.out.println("#"+tc+" ");
			
			for(int i=0;i<a.size();i++) {
				System.out.print(list[a.get(i)]+" ");
			}

			System.out.println();
		}
	}
}