[백준] 17219 비밀번호 찾기 - Data Structure / Java

• 문제 링크

17219번: 비밀번호 찾기

 

• 풀이 과정

 

• 풀이 코드

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.HashMap;
import java.util.Map;
import java.util.StringTokenizer;

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));
        StringTokenizer st = new StringTokenizer(br.readLine());

        int n = Integer.parseInt(st.nextToken());
        int m = Integer.parseInt(st.nextToken());

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

        while (n-- > 0) {
            st = new StringTokenizer(br.readLine());
            map.put(st.nextToken(), st.nextToken());
        }

        while (m-- > 0)
            bw.write(map.get(br.readLine()) + "\n");

        bw.flush();
    }

}