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# Client, Server의 버전 및 상태 확인
$ docker version 

# 플러그인, 시스템 상세 정보 확인
$ docker info

# docker 가이드 확인
$ docker --help
$ docker container --help
$ docker container run --help

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package com.example.javaspring.codingTest.leetcode;

import java.util.ArrayList;
import java.util.List;

public class ReorderLogFiles {
    public String[] reorderLogFiles(String[] logs) {
        List<String> letterList = new ArrayList<>();
        List<String> digitList = new ArrayList<>();

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package baseball;

import camp.nextstep.edu.missionutils.Console;
import camp.nextstep.edu.missionutils.Randoms;
import java.util.ArrayList;
import java.util.List;

public class Application {

    public static final int START_INCLUSIVE = 1;

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package com.javaStudyTest.binaryTree;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.*;

class BinaryTreeTest {

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package com.javaStudyTest.binaryTree;

import java.util.LinkedList;
import java.util.Queue;

public class BinaryTree {
    private Node root;

    public BinaryTree() {
        this.root = null;

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package com.javaStudyTest.binaryTree;

public class Node {
    private int value;
    private Node left;
    private Node right;

    public Node(int value){
        this.value  = value;
        right = null;