---
title: 2.14 ✅ Sorting
type: docs
weight: 14
---

# Sorting

![](https://img.halfrost.com/Leetcode/Sort.png)

- 深刻的理解多路快排。第 75 题。
- 链表的排序，插入排序(第 147 题)和归并排序(第 148 题)
- 桶排序和基数排序。第 164 题。
- "摆动排序"。第 324 题。
- 两两不相邻的排序。第 767 题，第 1054 题。
- "饼子排序"。第 969 题。


| No.      | Title | Solution | Difficulty | TimeComplexity | SpaceComplexity |Favorite| Acceptance |
|:--------:|:------- | :--------: | :----------: | :----: | :-----: | :-----: |:-----: |
|0015|3Sum|[Go]({{< relref "/ChapterFour/0001~0099/0015.3Sum.md" >}})|Medium||||29.9%|
|0016|3Sum Closest|[Go]({{< relref "/ChapterFour/0001~0099/0016.3Sum-Closest.md" >}})|Medium||||46.9%|
|0018|4Sum|[Go]({{< relref "/ChapterFour/0001~0099/0018.4Sum.md" >}})|Medium||||36.7%|
|0049|Group Anagrams|[Go]({{< relref "/ChapterFour/0001~0099/0049.Group-Anagrams.md" >}})|Medium||||62.4%|
|0056|Merge Intervals|[Go]({{< relref "/ChapterFour/0001~0099/0056.Merge-Intervals.md" >}})|Medium| O(n log n)| O(log n)||43.3%|
|0075|Sort Colors|[Go]({{< relref "/ChapterFour/0001~0099/0075.Sort-Colors.md" >}})|Medium| O(n)| O(1)|❤️|52.8%|
|0088|Merge Sorted Array|[Go]({{< relref "/ChapterFour/0001~0099/0088.Merge-Sorted-Array.md" >}})|Easy||||42.3%|
|0147|Insertion Sort List|[Go]({{< relref "/ChapterFour/0100~0199/0147.Insertion-Sort-List.md" >}})|Medium| O(n^2)| O(1) |❤️|46.2%|
|0148|Sort List|[Go]({{< relref "/ChapterFour/0100~0199/0148.Sort-List.md" >}})|Medium|O(n log n)| O(log n)|❤️|49.0%|
|0164|Maximum Gap|[Go]({{< relref "/ChapterFour/0100~0199/0164.Maximum-Gap.md" >}})|Hard| O(n log n)| O(log n) |❤️|40.5%|
|0169|Majority Element|[Go]({{< relref "/ChapterFour/0100~0199/0169.Majority-Element.md" >}})|Easy||||61.5%|
|0179|Largest Number|[Go]({{< relref "/ChapterFour/0100~0199/0179.Largest-Number.md" >}})|Medium| O(n log n)| O(log n) |❤️|32.0%|
|0215|Kth Largest Element in an Array|[Go]({{< relref "/ChapterFour/0200~0299/0215.Kth-Largest-Element-in-an-Array.md" >}})|Medium||||61.4%|
|0217|Contains Duplicate|[Go]({{< relref "/ChapterFour/0200~0299/0217.Contains-Duplicate.md" >}})|Easy||||59.1%|
|0220|Contains Duplicate III|[Go]({{< relref "/ChapterFour/0200~0299/0220.Contains-Duplicate-III.md" >}})|Medium| O(n log n)| O(1) |❤️|21.5%|
|0229|Majority Element II|[Go]({{< relref "/ChapterFour/0200~0299/0229.Majority-Element-II.md" >}})|Medium||||40.7%|
|0242|Valid Anagram|[Go]({{< relref "/ChapterFour/0200~0299/0242.Valid-Anagram.md" >}})|Easy| O(n)| O(n) ||60.2%|
|0268|Missing Number|[Go]({{< relref "/ChapterFour/0200~0299/0268.Missing-Number.md" >}})|Easy||||57.7%|
|0274|H-Index|[Go]({{< relref "/ChapterFour/0200~0299/0274.H-Index.md" >}})|Medium|  O(n)| O(n) ||37.0%|
|0324|Wiggle Sort II|[Go]({{< relref "/ChapterFour/0300~0399/0324.Wiggle-Sort-II.md" >}})|Medium| O(n)| O(n)|❤️|31.6%|
|0347|Top K Frequent Elements|[Go]({{< relref "/ChapterFour/0300~0399/0347.Top-K-Frequent-Elements.md" >}})|Medium||||63.7%|
|0349|Intersection of Two Arrays|[Go]({{< relref "/ChapterFour/0300~0399/0349.Intersection-of-Two-Arrays.md" >}})|Easy| O(n)| O(n) ||67.5%|
|0350|Intersection of Two Arrays II|[Go]({{< relref "/ChapterFour/0300~0399/0350.Intersection-of-Two-Arrays-II.md" >}})|Easy| O(n)| O(n) ||53.8%|
|0354|Russian Doll Envelopes|[Go]({{< relref "/ChapterFour/0300~0399/0354.Russian-Doll-Envelopes.md" >}})|Hard||||39.2%|
|0368|Largest Divisible Subset|[Go]({{< relref "/ChapterFour/0300~0399/0368.Largest-Divisible-Subset.md" >}})|Medium||||39.1%|
|0378|Kth Smallest Element in a Sorted Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0378.Kth-Smallest-Element-in-a-Sorted-Matrix.md" >}})|Medium||||58.5%|
|0389|Find the Difference|[Go]({{< relref "/ChapterFour/0300~0399/0389.Find-the-Difference.md" >}})|Easy||||58.8%|
|0414|Third Maximum Number|[Go]({{< relref "/ChapterFour/0400~0499/0414.Third-Maximum-Number.md" >}})|Easy||||31.1%|
|0435|Non-overlapping Intervals|[Go]({{< relref "/ChapterFour/0400~0499/0435.Non-overlapping-Intervals.md" >}})|Medium||||46.4%|
|0436|Find Right Interval|[Go]({{< relref "/ChapterFour/0400~0499/0436.Find-Right-Interval.md" >}})|Medium||||49.0%|
|0451|Sort Characters By Frequency|[Go]({{< relref "/ChapterFour/0400~0499/0451.Sort-Characters-By-Frequency.md" >}})|Medium||||66.8%|
|0455|Assign Cookies|[Go]({{< relref "/ChapterFour/0400~0499/0455.Assign-Cookies.md" >}})|Easy||||50.6%|
|0462|Minimum Moves to Equal Array Elements II|[Go]({{< relref "/ChapterFour/0400~0499/0462.Minimum-Moves-to-Equal-Array-Elements-II.md" >}})|Medium||||56.1%|
|0475|Heaters|[Go]({{< relref "/ChapterFour/0400~0499/0475.Heaters.md" >}})|Medium||||34.5%|
|0524|Longest Word in Dictionary through Deleting|[Go]({{< relref "/ChapterFour/0500~0599/0524.Longest-Word-in-Dictionary-through-Deleting.md" >}})|Medium| O(n)| O(1) ||50.7%|
|0532|K-diff Pairs in an Array|[Go]({{< relref "/ChapterFour/0500~0599/0532.K-diff-Pairs-in-an-Array.md" >}})|Medium||||37.0%|
|0561|Array Partition I|[Go]({{< relref "/ChapterFour/0500~0599/0561.Array-Partition-I.md" >}})|Easy||||74.8%|
|0581|Shortest Unsorted Continuous Subarray|[Go]({{< relref "/ChapterFour/0500~0599/0581.Shortest-Unsorted-Continuous-Subarray.md" >}})|Medium||||33.6%|
|0594|Longest Harmonious Subsequence|[Go]({{< relref "/ChapterFour/0500~0599/0594.Longest-Harmonious-Subsequence.md" >}})|Easy||||52.1%|
|0611|Valid Triangle Number|[Go]({{< relref "/ChapterFour/0600~0699/0611.Valid-Triangle-Number.md" >}})|Medium||||49.2%|
|0628|Maximum Product of Three Numbers|[Go]({{< relref "/ChapterFour/0600~0699/0628.Maximum-Product-of-Three-Numbers.md" >}})|Easy||||46.7%|
|0632|Smallest Range Covering Elements from K Lists|[Go]({{< relref "/ChapterFour/0600~0699/0632.Smallest-Range-Covering-Elements-from-K-Lists.md" >}})|Hard||||56.8%|
|0645|Set Mismatch|[Go]({{< relref "/ChapterFour/0600~0699/0645.Set-Mismatch.md" >}})|Easy||||41.1%|
|0658|Find K Closest Elements|[Go]({{< relref "/ChapterFour/0600~0699/0658.Find-K-Closest-Elements.md" >}})|Medium||||43.8%|
|0692|Top K Frequent Words|[Go]({{< relref "/ChapterFour/0600~0699/0692.Top-K-Frequent-Words.md" >}})|Medium||||53.9%|
|0710|Random Pick with Blacklist|[Go]({{< relref "/ChapterFour/0700~0799/0710.Random-Pick-with-Blacklist.md" >}})|Hard| O(n)| O(n)  ||33.1%|
|0719|Find K-th Smallest Pair Distance|[Go]({{< relref "/ChapterFour/0700~0799/0719.Find-K-th-Smallest-Pair-Distance.md" >}})|Hard||||33.8%|
|0720|Longest Word in Dictionary|[Go]({{< relref "/ChapterFour/0700~0799/0720.Longest-Word-in-Dictionary.md" >}})|Medium||||50.3%|
|0767|Reorganize String|[Go]({{< relref "/ChapterFour/0700~0799/0767.Reorganize-String.md" >}})|Medium| O(n log n)| O(log n)  |❤️|51.2%|
|0791|Custom Sort String|[Go]({{< relref "/ChapterFour/0700~0799/0791.Custom-Sort-String.md" >}})|Medium||||67.6%|
|0792|Number of Matching Subsequences|[Go]({{< relref "/ChapterFour/0700~0799/0792.Number-of-Matching-Subsequences.md" >}})|Medium||||49.8%|
|0826|Most Profit Assigning Work|[Go]({{< relref "/ChapterFour/0800~0899/0826.Most-Profit-Assigning-Work.md" >}})|Medium||||40.4%|
|0853|Car Fleet|[Go]({{< relref "/ChapterFour/0800~0899/0853.Car-Fleet.md" >}})|Medium| O(n log n)| O(log n)  ||46.9%|
|0869|Reordered Power of 2|[Go]({{< relref "/ChapterFour/0800~0899/0869.Reordered-Power-of-2.md" >}})|Medium||||61.3%|
|0870|Advantage Shuffle|[Go]({{< relref "/ChapterFour/0800~0899/0870.Advantage-Shuffle.md" >}})|Medium||||51.0%|
|0881|Boats to Save People|[Go]({{< relref "/ChapterFour/0800~0899/0881.Boats-to-Save-People.md" >}})|Medium||||49.6%|
|0888|Fair Candy Swap|[Go]({{< relref "/ChapterFour/0800~0899/0888.Fair-Candy-Swap.md" >}})|Easy||||60.0%|
|0891|Sum of Subsequence Widths|[Go]({{< relref "/ChapterFour/0800~0899/0891.Sum-of-Subsequence-Widths.md" >}})|Hard||||33.9%|
|0910|Smallest Range II|[Go]({{< relref "/ChapterFour/0900~0999/0910.Smallest-Range-II.md" >}})|Medium||||31.9%|
|0922|Sort Array By Parity II|[Go]({{< relref "/ChapterFour/0900~0999/0922.Sort-Array-By-Parity-II.md" >}})|Easy| O(n)| O(1) ||70.6%|
|0923|3Sum With Multiplicity|[Go]({{< relref "/ChapterFour/0900~0999/0923.3Sum-With-Multiplicity.md" >}})|Medium||||41.2%|
|0969|Pancake Sorting|[Go]({{< relref "/ChapterFour/0900~0999/0969.Pancake-Sorting.md" >}})|Medium| O(n log n)| O(log n) |❤️|69.3%|
|0973|K Closest Points to Origin|[Go]({{< relref "/ChapterFour/0900~0999/0973.K-Closest-Points-to-Origin.md" >}})|Medium| O(n log n)| O(log n) ||65.7%|
|0976|Largest Perimeter Triangle|[Go]({{< relref "/ChapterFour/0900~0999/0976.Largest-Perimeter-Triangle.md" >}})|Easy| O(n log n)| O(log n) ||59.9%|
|0977|Squares of a Sorted Array|[Go]({{< relref "/ChapterFour/0900~0999/0977.Squares-of-a-Sorted-Array.md" >}})|Easy||||71.5%|
|1005|Maximize Sum Of Array After K Negations|[Go]({{< relref "/ChapterFour/1000~1099/1005.Maximize-Sum-Of-Array-After-K-Negations.md" >}})|Easy||||51.9%|
|1030|Matrix Cells in Distance Order|[Go]({{< relref "/ChapterFour/1000~1099/1030.Matrix-Cells-in-Distance-Order.md" >}})|Easy| O(n^2)| O(1) ||68.8%|
|1040|Moving Stones Until Consecutive II|[Go]({{< relref "/ChapterFour/1000~1099/1040.Moving-Stones-Until-Consecutive-II.md" >}})|Medium||||54.9%|
|1051|Height Checker|[Go]({{< relref "/ChapterFour/1000~1099/1051.Height-Checker.md" >}})|Easy||||73.7%|
|1054|Distant Barcodes|[Go]({{< relref "/ChapterFour/1000~1099/1054.Distant-Barcodes.md" >}})|Medium| O(n log n)| O(log n) |❤️|45.0%|
|1122|Relative Sort Array|[Go]({{< relref "/ChapterFour/1100~1199/1122.Relative-Sort-Array.md" >}})|Easy||||67.9%|
|1170|Compare Strings by Frequency of the Smallest Character|[Go]({{< relref "/ChapterFour/1100~1199/1170.Compare-Strings-by-Frequency-of-the-Smallest-Character.md" >}})|Medium||||60.8%|
|1200|Minimum Absolute Difference|[Go]({{< relref "/ChapterFour/1200~1299/1200.Minimum-Absolute-Difference.md" >}})|Easy||||67.6%|
|1235|Maximum Profit in Job Scheduling|[Go]({{< relref "/ChapterFour/1200~1299/1235.Maximum-Profit-in-Job-Scheduling.md" >}})|Hard||||50.3%|
|1300|Sum of Mutated Array Closest to Target|[Go]({{< relref "/ChapterFour/1300~1399/1300.Sum-of-Mutated-Array-Closest-to-Target.md" >}})|Medium||||42.4%|
|1305|All Elements in Two Binary Search Trees|[Go]({{< relref "/ChapterFour/1300~1399/1305.All-Elements-in-Two-Binary-Search-Trees.md" >}})|Medium||||78.5%|
|1329|Sort the Matrix Diagonally|[Go]({{< relref "/ChapterFour/1300~1399/1329.Sort-the-Matrix-Diagonally.md" >}})|Medium||||81.5%|
|1337|The K Weakest Rows in a Matrix|[Go]({{< relref "/ChapterFour/1300~1399/1337.The-K-Weakest-Rows-in-a-Matrix.md" >}})|Easy||||72.1%|
|1383|Maximum Performance of a Team|[Go]({{< relref "/ChapterFour/1300~1399/1383.Maximum-Performance-of-a-Team.md" >}})|Hard||||41.3%|
|1385|Find the Distance Value Between Two Arrays|[Go]({{< relref "/ChapterFour/1300~1399/1385.Find-the-Distance-Value-Between-Two-Arrays.md" >}})|Easy||||66.4%|
|1464|Maximum Product of Two Elements in an Array|[Go]({{< relref "/ChapterFour/1400~1499/1464.Maximum-Product-of-Two-Elements-in-an-Array.md" >}})|Easy||||77.6%|
|1465|Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts|[Go]({{< relref "/ChapterFour/1400~1499/1465.Maximum-Area-of-a-Piece-of-Cake-After-Horizontal-and-Vertical-Cuts.md" >}})|Medium||||36.9%|
|1608|Special Array With X Elements Greater Than or Equal X|[Go]({{< relref "/ChapterFour/1600~1699/1608.Special-Array-With-X-Elements-Greater-Than-or-Equal-X.md" >}})|Easy||||60.9%|
|1619|Mean of Array After Removing Some Elements|[Go]({{< relref "/ChapterFour/1600~1699/1619.Mean-of-Array-After-Removing-Some-Elements.md" >}})|Easy||||64.6%|
|1636|Sort Array by Increasing Frequency|[Go]({{< relref "/ChapterFour/1600~1699/1636.Sort-Array-by-Increasing-Frequency.md" >}})|Easy||||67.9%|
|1647|Minimum Deletions to Make Character Frequencies Unique|[Go]({{< relref "/ChapterFour/1600~1699/1647.Minimum-Deletions-to-Make-Character-Frequencies-Unique.md" >}})|Medium||||56.0%|
|1648|Sell Diminishing-Valued Colored Balls|[Go]({{< relref "/ChapterFour/1600~1699/1648.Sell-Diminishing-Valued-Colored-Balls.md" >}})|Medium||||31.4%|
|1657|Determine if Two Strings Are Close|[Go]({{< relref "/ChapterFour/1600~1699/1657.Determine-if-Two-Strings-Are-Close.md" >}})|Medium||||54.7%|
|1665|Minimum Initial Energy to Finish Tasks|[Go]({{< relref "/ChapterFour/1600~1699/1665.Minimum-Initial-Energy-to-Finish-Tasks.md" >}})|Hard||||55.3%|
|1679|Max Number of K-Sum Pairs|[Go]({{< relref "/ChapterFour/1600~1699/1679.Max-Number-of-K-Sum-Pairs.md" >}})|Medium||||53.5%|
|1691|Maximum Height by Stacking Cuboids|[Go]({{< relref "/ChapterFour/1600~1699/1691.Maximum-Height-by-Stacking-Cuboids.md" >}})|Hard||||52.4%|
|1710|Maximum Units on a Truck|[Go]({{< relref "/ChapterFour/1700~1799/1710.Maximum-Units-on-a-Truck.md" >}})|Easy||||72.1%|
|1818|Minimum Absolute Sum Difference|[Go]({{< relref "/ChapterFour/1800~1899/1818.Minimum-Absolute-Sum-Difference.md" >}})|Medium||||28.3%|
|1846|Maximum Element After Decreasing and Rearranging|[Go]({{< relref "/ChapterFour/1800~1899/1846.Maximum-Element-After-Decreasing-and-Rearranging.md" >}})|Medium||||55.9%|
|1877|Minimize Maximum Pair Sum in Array|[Go]({{< relref "/ChapterFour/1800~1899/1877.Minimize-Maximum-Pair-Sum-in-Array.md" >}})|Medium||||80.0%|
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|


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