문제 https://programmers.co.kr/learn/courses/30/lessons/42892?language=java 코딩테스트 연습 - 길 찾기 게임 [[5,3],[11,5],[13,3],[3,5],[6,1],[1,3],[8,6],[7,2],[2,2]] [[7,4,6,9,1,8,5,2,3],[9,6,5,8,1,4,3,2,7]] programmers.co.kr 내 풀이 import java.util.*; class Solution { class Node { public int idx; public int x; public int y; public Node left; public Node right; Node (int idx,int x, int y) { this.idx = idx; this...