awesome-java-leetcode

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awesome-java-leetcode

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:crown: 자바(Java) 솔루션이 포함된 알고리즘 LeetCode (업데이트 중).

awesome-java-leetcode 최신버젼 다운로드

최종 버전 다운로드 (.zip)

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# awesome-java-leetcode

저는 현재 Android Developer이며, 대학 시절에는 ACMer였습니다. 저는 자료구조와 알고리즘이 프로그래머라면 반드시 마스터하고 잘 활용해야 할 필수 역량이라고 늘 생각해 왔습니다. 자료구조와 알고리즘이 제 기억에서 잊혀지지 않도록 LeetCode의 Algorithm을 다시 시작해보려 합니다. 사용할 언어는 Java이며, 문제 풀이는 조금씩 채워나갈 예정입니다. 난이도는 Easy, Medium, Hard로 분류하고, 각 난이도 내에서 문제 번호순으로 정렬했습니다. 소스 코드는 [src][src] 디렉토리에, 관련 해설은 [note][note] 디렉토리에 있습니다. 자료구조와 알고리즘을 공부하고 싶거나 LeetCode를 풀 예정인 분들의 많은 star 부탁드립니다.

이제 Facebook에 면접을 볼 기회가 생겨, LeetCode에 있는 Facebook 면접 문제 번호를 첨부합니다. 나중에 Facebook에 입사하고 싶어 하는 분들에게 도움이 되었으면 좋겠습니다 :-)

```
1,10,13,15,17,20,23,25,26,28,33,38,43,44,49,50,56,57,67,68,69,71,75,76
78,79,80,85,88,90,91,98,102,117,121,125,127,128,133,139,146,157,158,161
168,173,200,206,208,209,210,211,215,218,221,234,235,236,238,252,253,257
261,265,269,273,274,275,277,278,282,283,285,286,297,301,311,314,325,334
341,377,380,398,404,410,461,477,494,523,525,534,535,543,554
```

다른 기업의 LeetCode 면접 문제가 궁금하시다면 [Companies.md][companies]를 참고해 주세요.

마무리 시를 덧붙입니다:

> 옛날엔 과거(科舉)의 팔고문이 있었고, 지금엔 LeetCode가 있다.  
> 팔고문은 형식을 정해 문장력과 진심을 평가했고, LeetCode는 문제를 정해 정답 암기를 중시한다.  
> 그럴듯하게 포장하여 이르기를: "practice makes perfect."  
> 어째서 지금이 옛날만 못한가?  
> 아니 그렇지 않다,  
> 과거는 국가를 위해 인재를 뽑았고, LeetCode는 Google을 위해 코딩 노동자를 선발하니, 각자 필요한 바를 취할 뿐이다.

## Easy

## Medium

## Hard

| #    | Title                                                             | Tag                                               |
| :--- | :---------------------------------------------------------------- | :------------------------------------------------ |
| 4    | [Median of Two Sorted Arrays][0004]                               | Array, Binary Search, Divide and Conquer          |
| 10   | [Regular Expression Matching][0010]                               | String, Dynamic Programming, Backtracking         |
| 23   | [Merge k Sorted Lists][0023]                                      | Linked List, Divide and Conquer, Heap             |
| 25   | [Reverse Nodes in k-Group][0025]                                  | Linked List                                       |
| 30   | [Substring with Concatenation of All Words][0030]                 | Hash Table, Two Pointers, String                  |
| 44   | [Wildcard Matching][0044]                                         | String, Dynamic Programming, Backtracking, Greedy |
| 57   | [Insert Interval][0057]                                           | Array, Sort                                       |
| 68   | [Text Justification][0068]                                        | String                                            |
| 1028 | [从先序遍历还原二叉树(Recover a Tree From Preorder Traversal)][1028] | 트리, 깊이 우선 탐색                                 |

## 작은 광고

함께 공부할 수 있는 저의 작은 칼럼「**[기니타이메](https://xiaozhuanlan.com/Blankj)**」에 여러분을 초대합니다.

[src]: https://github.com/Blankj/awesome-java-leetcode/tree/master/src
[note]: https://github.com/Blankj/awesome-java-leetcode/tree/master/note
[companies]: https://github.com/Blankj/awesome-java-leetcode/blob/master/Companies.md

[0001]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0001/README.md
[0007]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0007/README.md
[0009]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0009/README.md
[0013]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0013/README.md
[0014]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0014/README.md
[16_11]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/16_11/README.md
[0020]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0020/README.md
[0021]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0021/README.md
[0026]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0026/README.md
[0027]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0027/README.md
[0028]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0028/README.md
[0035]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0035/README.md
[0038]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0038/README.md
[0053]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0053/README.md
[0058]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0058/README.md
[0066]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0066/README.md
[0067]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0067/README.md
[0069]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0069/README.md
[0070]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0070/README.md
[0083]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0083/README.md
[0088]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0088/README.md
[0100]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0100/README.md
[0101]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0101/README.md
[0104]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0104/README.md
[0107]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0107/README.md
[0108]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0108/README.md
[0110]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0110/README.md
[0111]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0111/README.md
[0112]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0112/README.md
[0118]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0118/README.md
[0119]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0119/README.md
[0121]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0121/README.md
[0122]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0122/README.md
[0543]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0543/README.md

[0002]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0002/README.md
[0003]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0003/README.md
[0005]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0005/README.md
[0006]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0006/README.md
[0008]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0008/README.md
[0011]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0011/README.md
[0012]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0012/README.md
[0015]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0015/README.md
[0016]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0016/README.md
[0017]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0017/README.md
[0018]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0018/README.md
[0019]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0019/README.md
[0022]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0022/README.md
[0024]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0024/README.md
[0029]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0029/README.md
[0033]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0033/README.md
[0043]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0043/README.md
[0049]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0049/README.md
[0050]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0050/README.md
[0056]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0056/README.md
[0063]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0063/README.md
[0209]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0209/README.md
[0215]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0215/README.md
[0554]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0554/README.md
[1014]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/1014/README.md

[0004]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0004/README.md
[0010]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0010/README.md
[0023]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0023/README.md
[0025]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0025/README.md
[0030]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0030/README.md
[0044]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0044/README.md
[0057]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0057/README.md
[0068]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/0068/README.md
[1028]: https://github.com/Blankj/awesome-java-leetcode/blob/master/note/1028/README.md

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