문제: https://www.acmicpc.net/problem/1620 나의 첫 번째 풀이(시간초과) - Map 활용package test;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 test67 { public static void main(String[] args) { // TODO Auto-generated..