https://github.com/neetcode-gh/leetcode

Leetcode solutions
https://github.com/neetcode-gh/leetcode
Last synced: 8 months ago
JSON representation
Leetcode solutions
Host: GitHub
URL: https://github.com/neetcode-gh/leetcode
Owner: neetcode-gh
License: mit
Created: 2021-01-20T16:10:14.000Z (over 5 years ago)
Default Branch: main
Last Pushed: 2025-05-02T13:41:52.000Z (about 1 year ago)
Last Synced: 2025-05-11T03:42:39.932Z (about 1 year ago)
Language: JavaScript
Size: 11 MB
Stars: 5,994
Watchers: 45
Forks: 2,394
Open Issues: 531
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
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Data-Engineering-Roadmap - Neetcode Leetcode
README

          # Leetcode solutions for 🚀 [NeetCode.io](https://neetcode.io)

> This repo hosts the solutions found on [NeetCode.io](https://neetcode.io) including the solutions shown on the [NeetCode YouTube channel](https://www.youtube.com/c/neetcode). The site will periodically be updated with new solutions from this repo!




Solutions from these languages will be linked from [NeetCode.io](https://neetcode.io):

> Python, Java, JavaScript, C++, Go, Swift, C#, TypeScript, Rust, Kotlin, Ruby, C, Scala and Dart

Solutions are also welcome for any other _supported_ language on leetcode.com!

## Contributing

**Please read the [contributing guidlines](./CONTRIBUTING.md) before opening a PR**

To contribute, please fork this repo and open a PR adding a [missing solution](#missing-solutions) from the supported languages.

If you would like to have collaborator permissions on the repo to merge your own PRs or review others' PRs please let me know.

## Credits



  



## Missing Solutions

### Arrays & Hashing

_Problem | _articles | _C | _C++ | _C# | _Dart | _GO | _hints | _Java | _JS | _Kotlin | _Python | _Ruby | _Rust | _Scala | _Swift | _TS

---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ----

_{[0217 - Contains Duplicate](https://leetcode.com/problems/contains-duplicate/)} | 
❌
 | _{[✔️](c%2F0217-contains-duplicate.c)} | _{[✔️](cpp%2F0217-contains-duplicate.cpp)} | _{[✔️](csharp%2F0217-contains-duplicate.cs)} | _{[✔️](dart%2F0217-contains-duplicate.dart)} | _{[✔️](go%2F0217-contains-duplicate.go)} | _❌ | _{[✔️](java%2F0217-contains-duplicate.java)} | _{[✔️](javascript%2F0217-contains-duplicate.js)} | _{[✔️](kotlin%2F0217-contains-duplicate.kt)} | _{[✔️](python%2F0217-contains-duplicate.py)} | _{[✔️](ruby%2F0217-contains-duplicate.rb)} | _{[✔️](rust%2F0217-contains-duplicate.rs)} | _{[✔️](scala%2F0217-contains-duplicate.scala)} | _{[✔️](swift%2F0217-contains-duplicate.swift)} | _{[✔️](typescript%2F0217-contains-duplicate.ts)}

_{[0242 - Valid Anagram](https://leetcode.com/problems/valid-anagram/)} | _❌ | _{[✔️](c%2F0242-valid-anagram.c)} | _{[✔️](cpp%2F0242-valid-anagram.cpp)} | _{[✔️](csharp%2F0242-valid-anagram.cs)} | _{[✔️](dart%2F0242-valid-anagram.dart)} | _{[✔️](go%2F0242-valid-anagram.go)} | _❌ | _{[✔️](java%2F0242-valid-anagram.java)} | _{[✔️](javascript%2F0242-valid-anagram.js)} | _{[✔️](kotlin%2F0242-valid-anagram.kt)} | _{[✔️](python%2F0242-valid-anagram.py)} | _{[✔️](ruby%2F0242-valid-anagram.rb)} | _{[✔️](rust%2F0242-valid-anagram.rs)} | _{[✔️](scala%2F0242-valid-anagram.scala)} | _{[✔️](swift%2F0242-valid-anagram.swift)} | _{[✔️](typescript%2F0242-valid-anagram.ts)}

_{[1929 - Concatenation of Array](https://leetcode.com/problems/concatenation-of-array/)} | _❌ | _{[✔️](c%2F1929-concatenation-of-array.c)} | _{[✔️](cpp%2F1929-concatenation-of-array.cpp)} | _{[✔️](csharp%2F1929-concatenation-of-array.cs)} | _{[✔️](dart%2F1929-concatenation-of-array.dart)} | _{[✔️](go%2F1929-concatenation-of-array.go)} | _❌ | _{[✔️](java%2F1929-concatenation-of-array.java)} | _{[✔️](javascript%2F1929-concatenation-of-array.js)} | _{[✔️](kotlin%2F1929-concatenation-of-array.kt)} | _{[✔️](python%2F1929-concatenation-of-array.py)} | _{[✔️](ruby%2F1929-concatenation-of-array.rb)} | _{[✔️](rust%2F1929-concatenation-of-array.rs)} | _{[✔️](scala%2F1929-concatenation-of-array.scala)} | _{[✔️](swift%2F1929-concatenation-of-array.swift)} | _{[✔️](typescript%2F1929-concatenation-of-array.ts)}

_{[1299 - Replace Elements With Greatest Element On Right Side](https://leetcode.com/problems/replace-elements-with-greatest-element-on-right-side/)} | _❌ | _{[✔️](c%2F1299-Replace-Elements-With-Greatest-Element-On-Right-Side.c)} | _{[✔️](cpp%2F1299-Replace-Elements-with-Greatest-Element-on-Right-Side.cpp)} | _{[✔️](csharp%2F1299-Replace-Elements-With-Greatest-Element-On-Right-Side.cs)} | _{[✔️](dart%2F1299-replace-elements-with-greatest-element-on-right-side.dart)} | _{[✔️](go%2F1299-Replace-Elements-With-Greatest-Element-On-Right-Side.go)} | _❌ | _{[✔️](java%2F1299-Replace-Elements-With-Greatest-Element-On-Right-Side.java)} | _{[✔️](javascript%2F1299-Replace-Elements-with-Greatest-Element-on-Right-Side.js)} | _{[✔️](kotlin%2F1299-replace-elements-with-greatest-element-on-right-side.kt)} | _{[✔️](python%2F1299-replace-elements-with-greatest-element-on-right-side.py)} | _{[✔️](ruby%2F1299-replace-elements-with-greatest-element-on-right-side.rb)} | _{[✔️](rust%2F1299-Replace-Elements-With-Greatest-Element-On-Right-Side.rs)} | _❌ | _{[✔️](swift%2F1299-replace-elements-with-greatest-element-on-right-side.swift)} | _{[✔️](typescript%2F1299-Replace-Elements-With-Greatest-Element-On-Right-Side.ts)}

_{[0392 - Is Subsequence](https://leetcode.com/problems/is-subsequence/)} | _❌ | _{[✔️](c%2F0392-is-subsequence.c)} | _{[✔️](cpp%2F0392-is-subsequence.cpp)} | _{[✔️](csharp%2F0392-is-subsequence.cs)} | _{[✔️](dart%2F0392-is-subsequence.dart)} | _{[✔️](go%2F0392-is-subsequence.go)} | _❌ | _{[✔️](java%2F0392-is-subsequence.java)} | _{[✔️](javascript%2F0392-is-subsequence.js)} | _{[✔️](kotlin%2F0392-is-subsequence.kt)} | _{[✔️](python%2F0392-is-subsequence.py)} | _{[✔️](ruby%2F0392-is-subsequence.rb)} | _{[✔️](rust%2F0392-is-subsequence.rs)} | _❌ | _{[✔️](swift%2F0392-is-subsequence.swift)} | _{[✔️](typescript%2F0392-is-subsequence.ts)}

_{[0058 - Length of Last Word](https://leetcode.com/problems/length-of-last-word/)} | _❌ | _{[✔️](c%2F0058-length-of-last-word.c)} | _{[✔️](cpp%2F0058-length-of-last-word.cpp)} | _{[✔️](csharp%2F0058-length-of-last-word.cs)} | _{[✔️](dart%2F0058-length-of-last-word.dart)} | _{[✔️](go%2F0058-Length-of-Last-Word.go)} | _❌ | _{[✔️](java%2F0058-length-of-last-word.java)} | _{[✔️](javascript%2F0058-length-of-last-word.js)} | _{[✔️](kotlin%2F0058-length-of-last-word.kt)} | _{[✔️](python%2F0058-length-of-last-word.py)} | _{[✔️](ruby%2F0058-length-of-last-word.rb)} | _{[✔️](rust%2F0058-length-of-last-word.rs)} | _{[✔️](scala%2F0058-length-of-last-word.scala)} | _{[✔️](swift%2F0058-Length-of-Last-Word.swift)} | _{[✔️](typescript%2F0058-length-of-last-word.ts)}

_{[0001 - Two Sum](https://leetcode.com/problems/two-sum/)} | _❌ | _{[✔️](c%2F0001-two-sum.c)} | _{[✔️](cpp%2F0001-two-sum.cpp)} | _{[✔️](csharp%2F0001-two-sum.cs)} | _{[✔️](dart%2F0001-two-sum.dart)} | _{[✔️](go%2F0001-two-sum.go)} | _❌ | _{[✔️](java%2F0001-two-sum.java)} | _{[✔️](javascript%2F0001-two-sum.js)} | _{[✔️](kotlin%2F0001-two-sum.kt)} | _{[✔️](python%2F0001-two-sum.py)} | _{[✔️](ruby%2F0001-two-sum.rb)} | _{[✔️](rust%2F0001-two-sum.rs)} | _{[✔️](scala%2F0001-two-sum.scala)} | _{[✔️](swift%2F0001-two-sum.swift)} | _{[✔️](typescript%2F0001-two-sum.ts)}

_{[0014 - Longest Common Prefix](https://leetcode.com/problems/longest-common-prefix/)} | _❌ | _{[✔️](c%2F0014-Longest-Common-Prefix.c)} | _{[✔️](cpp%2F0014-longest-common-prefix.cpp)} | _{[✔️](csharp%2F0014-longest-common-prefix.cs)} | _{[✔️](dart%2F0014-longest-common-prefix.dart)} | _{[✔️](go%2F0014-longest-common-prefix.go)} | _❌ | _{[✔️](java%2F0014-longest-common-prefix.java)} | _{[✔️](javascript%2F0014-longest-common-prefix.js)} | _{[✔️](kotlin%2F0014-longest-common-prefix.kt)} | _{[✔️](python%2F0014-longest-common-prefix.py)} | _❌ | _{[✔️](rust%2F0014-longest-common-prefix.rs)} | _❌ | _{[✔️](swift%2F0014-longest-common-prefix.swift)} | _{[✔️](typescript%2F0014-longest-common-prefix.ts)}

_{[0049 - Group Anagrams](https://leetcode.com/problems/group-anagrams/)} | _❌ | _{[✔️](c%2F0049-group-anagrams.c)} | _{[✔️](cpp%2F0049-group-anagrams.cpp)} | _{[✔️](csharp%2F0049-group-anagrams.cs)} | _{[✔️](dart%2F0049-group-anagrams.dart)} | _{[✔️](go%2F0049-group-anagrams.go)} | _❌ | _{[✔️](java%2F0049-group-anagrams.java)} | _{[✔️](javascript%2F0049-group-anagrams.js)} | _{[✔️](kotlin%2F0049-group-anagrams.kt)} | _{[✔️](python%2F0049-group-anagrams.py)} | _{[✔️](ruby%2F0049-group-anagrams.rb)} | _{[✔️](rust%2F0049-group-anagrams.rs)} | _{[✔️](scala%2F0049-group-anagrams.scala)} | _{[✔️](swift%2F0049-group-anagrams.swift)} | _{[✔️](typescript%2F0049-group-anagrams.ts)}

_{[0118 - Pascals Triangle](https://leetcode.com/problems/pascals-triangle/)} | _❌ | _{[✔️](c%2F0118-pascals-triangle.c)} | _{[✔️](cpp%2F0118-pascals-triangle.cpp)} | _{[✔️](csharp%2F0118-pascals-triangle.cs)} | _{[✔️](dart%2F0118-pascals-triangle.dart)} | _{[✔️](go%2F0118-pascals-triangle.go)} | _❌ | _{[✔️](java%2F0118-pascals-triangle.java)} | _{[✔️](javascript%2F0118-pascals-triangle.js)} | _{[✔️](kotlin%2F0118-pascals-triangle.kt)} | _{[✔️](python%2F0118-pascals-triangle.py)} | _❌ | _{[✔️](rust%2F0118-pascals-triangle.rs)} | _❌ | _❌ | _{[✔️](typescript%2F0118-pascals-triangle.ts)}

_{[0027 - Remove Element](https://leetcode.com/problems/remove-element/)} | _❌ | _{[✔️](c%2F0027-remove-element.c)} | _{[✔️](cpp%2F0027-remove-element.cpp)} | _{[✔️](csharp%2F0027-remove-element.cs)} | _{[✔️](dart%2F0027-remove-element.dart)} | _{[✔️](go%2F0027-remove-element.go)} | _❌ | _{[✔️](java%2F0027-remove-element.java)} | _{[✔️](javascript%2F0027-remove-element.js)} | _{[✔️](kotlin%2F0027-remove-element.kt)} | _{[✔️](python%2F0027-remove-element.py)} | _❌ | _{[✔️](rust%2F0027-remove-element.rs)} | _❌ | _{[✔️](swift%2F0027-Remove-Element.swift)} | _{[✔️](typescript%2F0027-remove-element.ts)}

_{[0929 - Unique Email Addresses](https://leetcode.com/problems/unique-email-addresses/)} | _❌ | _{[✔️](c%2F0929-unique-email-addresses.c)} | _{[✔️](cpp%2F0929-unique-email-addresses.cpp)} | _{[✔️](csharp%2F0929-unique-email-addresses.cs)} | _{[✔️](dart%2F0929-unique-email-addresses.dart)} | _{[✔️](go%2F0929-unique-email-addresses.go)} | _❌ | _{[✔️](java%2F0929-unique-email-addresses.java)} | _{[✔️](javascript%2F0929-unique-email-addresses.js)} | _{[✔️](kotlin%2F0929-unique-email-addresses.kt)} | _{[✔️](python%2F0929-unique-email-addresses.py)} | _❌ | _{[✔️](rust%2F0929-unique-email-addresses.rs)} | _❌ | _{[✔️](swift%2F0929-unique-email-addresses.swift)} | _{[✔️](typescript%2F0929-unique-email-addresses.ts)}

_{[0205 - Isomorphic Strings](https://leetcode.com/problems/isomorphic-strings/)} | _❌ | _{[✔️](c%2F0205-isomorphic-strings.c)} | _{[✔️](cpp%2F0205-Isomorphic-Strings.cpp)} | _{[✔️](csharp%2F0205-isomorphic-strings.cs)} | _❌ | _{[✔️](go%2F0205-isomorphic-strings.go)} | _❌ | _{[✔️](java%2F0205-isomorphic-strings.java)} | _{[✔️](javascript%2F0205-isomorphic-strings.js)} | _{[✔️](kotlin%2F0205-isomorphic-strings.kt)} | _{[✔️](python%2F0205-isomorphic-strings.py)} | _❌ | _{[✔️](rust%2F0205-isomorphic-strings.rs)} | _❌ | _{[✔️](swift%2F0205-isomorphic-strings.swift)} | _{[✔️](typescript%2F0205-isomorphic-strings.ts)}

_{[0605 - Can Place Flowers](https://leetcode.com/problems/can-place-flowers/)} | _❌ | _{[✔️](c%2F0605-can-place-flowers.c)} | _{[✔️](cpp%2F0605-can-place-flowers.cpp)} | _{[✔️](csharp%2F0605-can-place-flowers.cs)} | _❌ | _{[✔️](go%2F0605-can-place-flowers.go)} | _❌ | _{[✔️](java%2F0605-can-place-flowers.java)} | _{[✔️](javascript%2F0605-can-place-flowers.js)} | _{[✔️](kotlin%2F0605-can-place-flowers.kt)} | _{[✔️](python%2F0605-can-place-flowers.py)} | _❌ | _{[✔️](rust%2F0605-can-place-flowers.rs)} | _❌ | _{[✔️](swift%2F0605-can-place-flowers.swift)} | _{[✔️](typescript%2F0605-can-place-flowers.ts)}

_{[0169 - Majority Element](https://leetcode.com/problems/majority-element/)} | _❌ | _{[✔️](c%2F0169-majority-element.c)} | _{[✔️](cpp%2F0169-majority-element.cpp)} | _{[✔️](csharp%2F0169-majority-element.cs)} | _{[✔️](dart%2F0169-majority-element.dart)} | _{[✔️](go%2F0169-majority-element.go)} | _❌ | _{[✔️](java%2F0169-majority-element.java)} | _{[✔️](javascript%2F0169-majority-element.js)} | _{[✔️](kotlin%2F0169-majority-element.kt)} | _{[✔️](python%2F0169-majority-element.py)} | _❌ | _{[✔️](rust%2F0169-majority-element.rs)} | _❌ | _{[✔️](swift%2F0169-majority-element.swift)} | _{[✔️](typescript%2F0169-majority-element.ts)}

_{[0496 - Next Greater Element I](https://leetcode.com/problems/next-greater-element-i/)} | _❌ | _{[✔️](c%2F0496-next-greater-element-i.c)} | _{[✔️](cpp%2F0496-next-greater-element-i.cpp)} | _{[✔️](csharp%2F0496-next-greater-element-i.cs)} | _❌ | _{[✔️](go%2F0496-next-greater-element-i.go)} | _❌ | _{[✔️](java%2F0496-next-greater-element-i.java)} | _{[✔️](javascript%2F0496-next-greater-element-i.js)} | _{[✔️](kotlin%2F0496-next-greater-element-i.kt)} | _{[✔️](python%2F0496-next-greater-element-i.py)} | _❌ | _{[✔️](rust%2F0496-next-greater-element-I.rs)} | _❌ | _❌ | _{[✔️](typescript%2F0496-next-greater-element-i.ts)}

_{[0724 - Find Pivot Index](https://leetcode.com/problems/find-pivot-index/)} | _❌ | _{[✔️](c%2F0724-find-pivot-index.c)} | _{[✔️](cpp%2F0724-find-pivot-index.cpp)} | _{[✔️](csharp%2F0724-find-pivot-index.cs)} | _❌ | _{[✔️](go%2F0724-find-pivot-index.go)} | _❌ | _{[✔️](java%2F0724-find-pivot-index.java)} | _{[✔️](javascript%2F0724-find-pivot-index.js)} | _{[✔️](kotlin%2F0724-find-pivot-index.kt)} | _{[✔️](python%2F0724-find-pivot-index.py)} | _❌ | _{[✔️](rust%2F0724-find-pivot-index.rs)} | _❌ | _{[✔️](swift%2F0724-find-pivot-index.swift)} | _{[✔️](typescript%2F0724-find-pivot-index.ts)}

_{[0303 - Range Sum Query - Immutable](https://leetcode.com/problems/range-sum-query-immutable/)} | _❌ | _{[✔️](c%2F0303-range-sum-query-immutable.c)} | _{[✔️](cpp%2F0303-range-sum-query-immutable.cpp)} | _{[✔️](csharp%2F0303-range-sum-query-immutable.cs)} | _❌ | _{[✔️](go%2F0303-range-sum-query.go)} | _❌ | _{[✔️](java%2F0303-range-sum-query-immutable.java)} | _{[✔️](javascript%2F0303-range-sum-query-immutable.js)} | _{[✔️](kotlin%2F0303-range-sum-query-immutable.kt)} | _{[✔️](python%2F0303-range-sum-query-immutable.py)} | _❌ | _{[✔️](rust%2F0303-range-sum-query-immutable.rs)} | _❌ | _{[✔️](swift%2F0303-range-sum-query-immutable.swift)} | _{[✔️](typescript%2F0303-range-sum-query-immutable.ts)}

_{[0448 - Find All Numbers Disappeared in An Array](https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array/)} | _❌ | _{[✔️](c%2F0448-Find-All-Numbers-Disappeared-in-an-Array.c)} | _{[✔️](cpp%2F0448-find-all-numbers-disappeared-in-an-array.cpp)} | _{[✔️](csharp%2F0448-find-all-numbers-disappeared-in-an-array.cs)} | _❌ | _{[✔️](go%2F0448-find-all-numbers-disappeared-in-an-array.go)} | _❌ | _{[✔️](java%2F0448-find-all-numbers-disappeared-in-an-array.java)} | _{[✔️](javascript%2F0448-find-all-numbers-disappeared-in-an-array.js)} | _{[✔️](kotlin%2F0448-find-all-numbers-disappeared-in-an-array.kt)} | _{[✔️](python%2F0448-find-all-numbers-disappeared-in-an-array.py)} | _❌ | _{[✔️](rust%2F0448-find-all-numbers-disappeared-in-an-array.rs)} | _❌ | _❌ | _{[✔️](typescript%2F0448-find-all-numbers-disappeared-in-an-array.ts)}

_{[1189 - Maximum Number of Balloons](https://leetcode.com/problems/maximum-number-of-balloons/)} | _❌ | _{[✔️](c%2F1189-Maximum-Number-of-Balloons.c)} | _{[✔️](cpp%2F1189-maximum-number-of-balloons.cpp)} | _{[✔️](csharp%2F1189-maximum-number-of-balloons.cs)} | _❌ | _{[✔️](go%2F1189-maximum-number-of-balloons.go)} | _❌ | _{[✔️](java%2F1189-maximum-number-of-balloons.java)} | _{[✔️](javascript%2F1189-maximum-number-of-balloons.js)} | _{[✔️](kotlin%2F1189-maximum-number-of-balloons.kt)} | _{[✔️](python%2F1189-maximum-number-of-balloons.py)} | _❌ | _{[✔️](rust%2F1189-maximum-number-of-balloons.rs)} | _❌ | _❌ | _{[✔️](typescript%2F1189-maximum-number-of-balloons.ts)}

_{[0290 - Word Pattern](https://leetcode.com/problems/word-pattern/)} | _❌ | _{[✔️](c%2F0290-Word-Pattern.c)} | _{[✔️](cpp%2F0290-word-pattern.cpp)} | _{[✔️](csharp%2F0290-word-pattern.cs)} | _❌ | _{[✔️](go%2F0290-word-pattern.go)} | _❌ | _{[✔️](java%2F0290-word-pattern.java)} | _{[✔️](javascript%2F0290-word-pattern.js)} | _{[✔️](kotlin%2F0290-word-pattern.kt)} | _{[✔️](python%2F0290-word-pattern.py)} | _❌ | _{[✔️](rust%2F0290-word-pattern.rs)} | _❌ | _❌ | _{[✔️](typescript%2F0290-word-pattern.ts)}

_{[0705 - Design HashSet](https://leetcode.com/problems/design-hashset/)} | _❌ | _{[✔️](c%2F0705-design-hashset.c)} | _{[✔️](cpp%2F0705-design-hashset.cpp)} | _{[✔️](csharp%2F0705-design-hashset.cs)} | _❌ | _❌ | _❌ | _{[✔️](java%2F0705-design-hashset.java)} | _{[✔️](javascript%2F0705-design-hashset.js)} | _{[✔️](kotlin%2F0705-design-hashset.kt)} | _{[✔️](python%2F0705-design-hashset.py)} | _❌ | _{[✔️](rust%2F0705-design-hashset.rs)} | _❌ | _{[✔️](swift%2F0705-design-hashset.swift)} | _{[✔️](typescript%2F0705-design-hashset.ts)}

_{[0706 - Design HashMap](https://leetcode.com/problems/design-hashmap/)} | _❌ | _{[✔️](c%2F0706-design-hashmap.c)} | _{[✔️](cpp%2F0706-design-hashmap.cpp)} | _{[✔️](csharp%2F0706-design-hashmap.cs)} | _❌ | _{[✔️](go%2F0706-design-hashmap.go)} | _❌ | _{[✔️](java%2F0706-design-hashmap.java)} | _{[✔️](javascript%2F0706-design-hashmap.js)} | _{[✔️](kotlin%2F0706-design-hashmap.kt)} | _{[✔️](python%2F0706-design-hashmap.py)} | _❌ | _{[✔️](rust%2F0706-design-hashmap.rs)} | _❌ | _{[✔️](swift%2F0706-design-hashmap.swift)} | _❌

_{[0912 - Sort an Array](https://leetcode.com/problems/sort-an-array/)} | _❌ | _{[✔️](c%2F0912-sort-an-array.c)} | _{[✔️](cpp%2F0912-sort-an-array.cpp)} | _{[✔️](csharp%2F0912-sort-an-array.cs)} | _❌ | _{[✔️](go%2F0912-sort-an-array.go)} | _❌ | _{[✔️](java%2F0912-sort-an-array.java)} | _{[✔️](javascript%2F0912-sort-an-array.js)} | _{[✔️](kotlin%2F0912-sort-an-array.kt)} | _{[✔️](python%2F0912-sort-an-array.py)} | _❌ | _{[✔️](rust%2F0912-sort-an-array.rs)} | _❌ | _{[✔️](swift%2F0912-sort-an-array.swift)} | _❌

_{[0347 - Top K Frequent Elements](https://leetcode.com/problems/top-k-frequent-elements/)} | _❌ | _{[✔️](c%2F0347-top-k-frequent-elements.c)} | _{[✔️](cpp%2F0347-top-k-frequent-elements.cpp)} | _{[✔️](csharp%2F0347-top-k-frequent-elements.cs)} | _{[✔️](dart%2F0347-top-k-frequent-elements.dart)} | _{[✔️](go%2F0347-top-k-frequent-elements.go)} | _❌ | _{[✔️](java%2F0347-top-k-frequent-elements.java)} | _{[✔️](javascript%2F0347-top-k-frequent-elements.js)} | _{[✔️](kotlin%2F0347-top-k-frequent-elements.kt)} | _{[✔️](python%2F0347-top-k-frequent-elements.py)} | _{[✔️](ruby%2F0347-top-k-frequent-elements.rb)} | _{[✔️](rust%2F0347-top-k-frequent-elements.rs)} | _{[✔️](scala%2F0347-top-k-frequent-elements.scala)} | _{[✔️](swift%2F0347-top-k-frequent-elements.swift)} | _{[✔️](typescript%2F0347-top-k-frequent-elements.ts)}

_{[0238 - Product of Array Except Self](https://leetcode.com/problems/product-of-array-except-self/)} | _❌ | _{[✔️](c%2F0238-product-of-array-except-self.c)} | _{[✔️](cpp%2F0238-product-of-array-except-self.cpp)} | _{[✔️](csharp%2F0238-product-of-array-except-self.cs)} | _❌ | _{[✔️](go%2F0238-product-of-array-except-self.go)} | _❌ | _{[✔️](java%2F0238-product-of-array-except-self.java)} | _{[✔️](javascript%2F0238-product-of-array-except-self.js)} | _{[✔️](kotlin%2F0238-product-of-array-except-self.kt)} | _{[✔️](python%2F0238-product-of-array-except-self.py)} | _{[✔️](ruby%2F0238-product-of-array-except-self.rb)} | _{[✔️](rust%2F0238-product-of-array-except-self.rs)} | _❌ | _{[✔️](swift%2F0238-product-of-array-except-self.swift)} | _{[✔️](typescript%2F0238-product-of-array-except-self.ts)}

_{[0036 - Valid Sudoku](https://leetcode.com/problems/valid-sudoku/)} | _❌ | _{[✔️](c%2F0036-valid-sudoku.c)} | _{[✔️](cpp%2F0036-valid-sudoku.cpp)} | _{[✔️](csharp%2F0036-valid-sudoku.cs)} | _{[✔️](dart%2F0036-valid-sudoku.dart)} | _{[✔️](go%2F0036-valid-sudoku.go)} | _❌ | _{[✔️](java%2F0036-valid-sudoku.java)} | _{[✔️](javascript%2F0036-valid-sudoku.js)} | _{[✔️](kotlin%2F0036-valid-sudoku.kt)} | _{[✔️](python%2F0036-valid-sudoku.py)} | _{[✔️](ruby%2F0036-valid-sudoku.rb)} | _{[✔️](rust%2F0036-valid-sudoku.rs)} | _{[✔️](scala%2F0036-valid-sudoku.scala)} | _❌ | _{[✔️](typescript%2F0036-valid-sudoku.ts)}

_{[0271 - Encode and Decode Strings](https://leetcode.com/problems/encode-and-decode-strings/)} | _❌ | _❌ | _{[✔️](cpp%2F0271-encode-and-decode-strings.cpp)} | _{[✔️](csharp%2F0271-encode-and-decode-strings.cs)} | _❌ | _{[✔️](go%2F0271-encode-and-decode-strings.go)} | _❌ | _{[✔️](java%2F0271-encode-and-decode-strings.java)} | _{[✔️](javascript%2F0271-encode-and-decode-strings.js)} | _{[✔️](kotlin%2F0271-encode-and-decode-strings.kt)} | _{[✔️](python%2F0271-encode-and-decode-strings.py)} | _{[✔️](ruby%2F0271-encode-and-decode-strings.rb)} | _{[✔️](rust%2F0271-encode-and-decode-strings.rs)} | _❌ | _{[✔️](swift%2F0271-encode-and-decode-strings.swift)} | _{[✔️](typescript%2F0271-encode-and-decode-strings.ts)}

_{[0128 - Longest Consecutive Sequence](https://leetcode.com/problems/longest-consecutive-sequence/)} | _❌ | _{[✔️](c%2F0128-longest-consecutive-sequence.c)} | _{[✔️](cpp%2F0128-longest-consecutive-sequence.cpp)} | _{[✔️](csharp%2F0128-longest-consecutive-sequence.cs)} | _❌ | _{[✔️](go%2F0128-longest-consecutive-sequence.go)} | _❌ | _{[✔️](java%2F0128-longest-consecutive-sequence.java)} | _{[✔️](javascript%2F0128-longest-consecutive-sequence.js)} | _{[✔️](kotlin%2F0128-longest-consecutive-sequence.kt)} | _{[✔️](python%2F0128-longest-consecutive-sequence.py)} | _{[✔️](ruby%2F0128-longest-consecutive-sequence.rb)} | _{[✔️](rust%2F0128-longest-consecutive-sequence.rs)} | _❌ | _{[✔️](swift%2F0128-longest-consecutive-sequence.swift)} | _{[✔️](typescript%2F0128-longest-consecutive-sequence.ts)}

_{[0075 - Sort Colors](https://leetcode.com/problems/sort-colors/)} | _❌ | _{[✔️](c%2F0075-sort-colors.c)} | _{[✔️](cpp%2F0075-Sort-colors.cpp)} | _{[✔️](csharp%2F0075-sort-colors.cs)} | _❌ | _{[✔️](go%2F0075-sort-colors.go)} | _❌ | _{[✔️](java%2F0075-sort-colors.java)} | _{[✔️](javascript%2F0075-sort-colors.js)} | _{[✔️](kotlin%2F0075-sort-colors.kt)} | _{[✔️](python%2F0075-sort-colors.py)} | _❌ | _{[✔️](rust%2F0075-sort-colors.rs)} | _❌ | _{[✔️](swift%2F0075-sort-colors.swift)} | _{[✔️](typescript%2F0075-sort-colors.ts)}

_{[0535 - Encode and Decode TinyURL](https://leetcode.com/problems/encode-and-decode-tinyurl/)} | _❌ | _{[✔️](c%2F0535-encode-and-decode-tinyurl.c)} | _{[✔️](cpp%2F0535-encode-and-decode-tinyurl.cpp)} | _{[✔️](csharp%2F0535-encode-and-decode-tinyurl.cs)} | _❌ | _{[✔️](go%2F0535-encode-and-decode-tinyurl.go)} | _❌ | _{[✔️](java%2F0535-encode-and-decode-tinyurl.java)} | _{[✔️](javascript%2F0535-encode-and-decode-tinyurl.js)} | _{[✔️](kotlin%2F0535-encode-and-decode-tinyurl.kt)} | _{[✔️](python%2F0535-encode-and-decode-tinyurl.py)} | _❌ | _{[✔️](rust%2F0535-encode-and-decode-tinyURL.rs)} | _❌ | _{[✔️](swift%2F0535-Encode-and-Decode-TinyURL.Swift)} | _{[✔️](typescript%2F0535-encode-and-decode-tinyurl.ts)}

_{[0554 - Brick Wall](https://leetcode.com/problems/brick-wall/)} | _❌ | _{[✔️](c%2F0554-Brick-Wall.c)} | _{[✔️](cpp%2F0554-brick-wall.cpp)} | _{[✔️](csharp%2F0554-brick-wall.cs)} | _❌ | _{[✔️](go%2F0554-brick-wall.go)} | _❌ | _{[✔️](java%2F0554-brick-wall.java)} | _{[✔️](javascript%2F0554-brick-wall.js)} | _{[✔️](kotlin%2F0554-brick-wall.kt)} | _{[✔️](python%2F0554-brick-wall.py)} | _❌ | _{[✔️](rust%2F0554-brick-wall.rs)} | _❌ | _❌ | _{[✔️](typescript%2F0554-brick-wall.ts)}

_{[0122 - Best Time to Buy And Sell Stock II](https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii/)} | _❌ | _{[✔️](c%2F0122-best-time-to-buy-and-sell-stock-ii.c)} | _{[✔️](cpp%2F0122-best-time-to-buy-and-sell-stock-ii.cpp)} | _❌ | _❌ | _{[✔️](go%2F0122-best-time-to-buy-and-sell-stock-ii.go)} | _❌ | _{[✔️](java%2F0122-best-time-to-buy-and-sell-stock-II.java)} | _{[✔️](javascript%2F0122-best-time-to-buy-and-sell-stock-ii.js)} | _{[✔️](kotlin%2F0122-best-time-to-buy-and-sell-stock-ii.kt)} | _{[✔️](python%2F0122-best-time-to-buy-and-sell-stock-ii.py)} | _❌ | _{[✔️](rust%2F0122-best-time-to-buy-and-sell-stock-ii.rs)} | _❌ | _❌ | _❌

_{[0560 - Subarray Sum Equals K](https://leetcode.com/problems/subarray-sum-equals-k/)} | _❌ | _{[✔️](c%2F0560-subarray-sum-equals-k.c)} | _{[✔️](cpp%2F0560-subarray-sum-equals-k.cpp)} | _{[✔️](csharp%2F0560-subarray-sum-equals-k.cs)} | _❌ | _{[✔️](go%2F0560-subarray-sum-equals-k.go)} | _❌ | _{[✔️](java%2F0560-subarray-sum-equals-k.java)} | _{[✔️](javascript%2F0560-subarray-sum-equals-k.js)} | _{[✔️](kotlin%2F0560-subarray-sum-equals-k.kt)} | _{[✔️](python%2F0560-subarray-sum-equals-k.py)} | _❌ | _{[✔️](rust%2F0560-subarray-sum-equals-k.rs)} | _❌ | _{[✔️](swift%2F0560-subarray-sum-equals-k.swift)} | _{[✔️](typescript%2F0560-subarray-sum-equals-k.ts)}

_{[1930 - Unique Length 3 Palindromic Subsequences](https://leetcode.com/problems/unique-length-3-palindromic-subsequences/)} | _❌ | _{[✔️](c%2F1930-unique-length-3-palindromic-subsequences.c)} | _{[✔️](cpp%2F1930-unique-length-3-palindromic-subsequences.cpp)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F1930-unique-length-3-palindromic-subsequences.java)} | _{[✔️](javascript%2F1930-unique-length-3-palindromic-subsequences.js)} | _{[✔️](kotlin%2F1930-unique-length-3-palindromic-subsequences.kt)} | _{[✔️](python%2F1930-unique-length-3-palindromic-subsequences.py)} | _❌ | _{[✔️](rust%2F1930-unique-length-3-palindromic-subsequences.rs)} | _❌ | _❌ | _{[✔️](typescript%2F1930-unique-length-3-palindromic-subsequences.ts)}

_{[1963 - Minimum Number of Swaps to Make The String Balanced](https://leetcode.com/problems/minimum-number-of-swaps-to-make-the-string-balanced/)} | _❌ | _{[✔️](c%2F1963-minimum-number-of-swaps-to-make-the-string-balanced.c)} | _{[✔️](cpp%2F1963-minimum-number-of-swaps-to-make-the-string-balanced.cpp)} | _{[✔️](csharp%2F1963-minimum-number-of-swaps-to-make-the-string-balanced.cs)} | _❌ | _{[✔️](go%2F1963-minimum-number-of-swaps-to-make-the-string-balanced.go)} | _❌ | _{[✔️](java%2F1963-minimum-number-of-swaps-to-make-the-string-balanced.java)} | _{[✔️](javascript%2F1963-minimum-number-of-swaps-to-make-the-string-balanced.js)} | _{[✔️](kotlin%2F1963-minimum-number-of-swaps-to-make-the-string-balanced.kt)} | _{[✔️](python%2F1963-minimum-number-of-swaps-to-make-the-string-balanced.py)} | _❌ | _{[✔️](rust%2F1963-minimum-number-of-swaps-to-make-the-string-balanced.rs)} | _❌ | _❌ | _❌

_{[2001 - Number of Pairs of Interchangeable Rectangles](https://leetcode.com/problems/number-of-pairs-of-interchangeable-rectangles/)} | _❌ | _{[✔️](c%2F2001-number-of-pairs-of-interchangeable-rectangles.c)} | _{[✔️](cpp%2F2001-number-of-pairs-of-interchangeable-rectangles.cpp)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F2001-number-of-pairs-of-interchangeable-rectangles.java)} | _{[✔️](javascript%2F2001-number-of-pairs-of-interchangeable-rectangles.js)} | _{[✔️](kotlin%2F2001-number-of-pairs-of-interchangeable-rectangles.kt)} | _{[✔️](python%2F2001-number-of-pairs-of-interchangeable-rectangles.py)} | _❌ | _{[✔️](rust%2F2001-number-of-pairs-of-interchangeable-rectangles.rs)} | _❌ | _❌ | _❌

_{[2002 - Maximum Product of The Length of Two Palindromic Subsequences](https://leetcode.com/problems/maximum-product-of-the-length-of-two-palindromic-subsequences/)} | _❌ | _{[✔️](c%2F2002-maximum-product-of-the-length-of-two-palindromic-subsequences.c)} | _{[✔️](cpp%2F2002-maximum-product-of-the-length-of-two-palindromic-subsequences.cpp)} | _{[✔️](csharp%2F2002-maximum-product-of-the-length-of-two-palindromic-subsequences.cs)} | _❌ | _{[✔️](go%2F2002-maximum-product-of-the-length-of-two-palindromic-subsequences.go)} | _❌ | _{[✔️](java%2F2002-maximum-product-of-the-length-of-two-palindromic-subsequences.java)} | _{[✔️](javascript%2F2002-maximum-product-of-the-length-of-two-palindromic-subsequences.js)} | _{[✔️](kotlin%2F2002-maximum-product-of-the-length-of-two-palindromic-subsequences.kt)} | _{[✔️](python%2F2002-maximum-product-of-the-length-of-two-palindromic-subsequences.py)} | _❌ | _{[✔️](rust%2F2002-maximum-product-of-the-length-of-two-palindromic-subsequences.rs)} | _❌ | _❌ | _{[✔️](typescript%2F2002-maximum-product-of-the-length-of-two-palindromic-subsequences.ts)}

_{[2017 - Grid Game](https://leetcode.com/problems/grid-game/)} | _❌ | _❌ | _{[✔️](cpp%2F2017-grid-game.cpp)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F2017-grid-game.java)} | _{[✔️](javascript%2F2017-grid-game.js)} | _{[✔️](kotlin%2F2017-grid-game.kt)} | _{[✔️](python%2F2017-grid-game.py)} | _❌ | _{[✔️](rust%2F2017-grid-game.rs)} | _❌ | _❌ | _❌

_{[0438 - Find All Anagrams in a String](https://leetcode.com/problems/find-all-anagrams-in-a-string/)} | _❌ | _{[✔️](c%2F0438-find-all-anagrams-in-a-string.c)} | _{[✔️](cpp%2F0438-find-all-anagrams-in-a-string.cpp)} | _{[✔️](csharp%2F0438-find-all-anagrams-in-a-string.cs)} | _❌ | _{[✔️](go%2F0438-find-all-anagrams-in-a-string.go)} | _❌ | _{[✔️](java%2F0438-find-all-anagrams-in-a-string.java)} | _{[✔️](javascript%2F0438-find-all-anagrams-in-a-string.js)} | _{[✔️](kotlin%2F0438-find-all-anagrams-in-a-string.kt)} | _{[✔️](python%2F0438-find-all-anagrams-in-a-string.py)} | _❌ | _{[✔️](rust%2F0438-find-all-anagrams-in-a-string.rs)} | _❌ | _❌ | _{[✔️](typescript%2F0438-find-all-anagrams-in-a-string.ts)}

_{[0028 - Find The Index of The First Occurrence in a String](https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/)} | _❌ | _{[✔️](c%2F0028-find-the-index-of-the-first-occurrence-in-a-string.c)} | _{[✔️](cpp%2F0028-find-the-index-of-the-first-occurrence-in-a-string.cpp)} | _{[✔️](csharp%2F0028-find-the-index-of-the-first-occurrence-in-a-string.cs)} | _{[✔️](dart%2F0028-find-the-index-of-the-first-occurrence-in-a-string.dart)} | _{[✔️](go%2F0028-find-the-index-of-the-first-occurrence-in-a-string.go)} | _❌ | _{[✔️](java%2F0028-find-the-index-of-the-first-occurrence-in-a-string.java)} | _{[✔️](javascript%2F0028-find-the-index-of-the-first-occurrence-in-a-string.js)} | _{[✔️](kotlin%2F0028-find-the-index-of-the-first-occurrence-in-a-string.kt)} | _{[✔️](python%2F0028-find-the-index-of-the-first-occurrence-in-a-string.py)} | _❌ | _{[✔️](rust%2F0028-find-the-index-of-the-first-occurrence-in-a-string.rs)} | _❌ | _❌ | _❌

_{[0280 - Wiggle Sort](https://leetcode.com/problems/wiggle-sort/)} | _❌ | _❌ | _{[✔️](cpp%2F0280-wiggle-sort.cpp)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F0280-wiggle-sort.java)} | _❌ | _{[✔️](kotlin%2F0280-wiggle-sort.kt)} | _{[✔️](python%2F0280-wiggle-sort.py)} | _❌ | _❌ | _❌ | _❌ | _❌

_{[0179 - Largest Number](https://leetcode.com/problems/largest-number/)} | _❌ | _{[✔️](c%2F0179-largest-number.c)} | _{[✔️](cpp%2F0179-largest-number.cpp)} | _{[✔️](csharp%2F0179-largest-number.cs)} | _❌ | _{[✔️](go%2F0179-largest-number.go)} | _❌ | _{[✔️](java%2F0179-largest-number.java)} | _{[✔️](javascript%2F0179-largest-number.js)} | _{[✔️](kotlin%2F0179-largest-number.kt)} | _{[✔️](python%2F0179-largest-number.py)} | _{[✔️](ruby%2F0179-largest-number.rb)} | _{[✔️](rust%2F0179-largest-number.rs)} | _{[✔️](scala%2F0179-largest-number.scala)} | _{[✔️](swift%2F0179-largest-number.swift)} | _{[✔️](typescript%2F0179-largest-number.ts)}

_{[0523 - Continuous Subarray Sum](https://leetcode.com/problems/continuous-subarray-sum/)} | _❌ | _{[✔️](c%2F0523-continuous-subarray-sum.c)} | _{[✔️](cpp%2F0523-continuous-subarray-sum.cpp)} | _{[✔️](csharp%2F0523-continuous-subarray-sum.cs)} | _❌ | _❌ | _❌ | _{[✔️](java%2F0523-continuous-subarray-sum.java)} | _{[✔️](javascript%2F0523-continuous-subarray-sum.js)} | _{[✔️](kotlin%2F0523-continuous-subarray-sum.kt)} | _{[✔️](python%2F0523-continuous-subarray-sum.py)} | _❌ | _{[✔️](rust%2F0523-continuous-subarray-sum.rs)} | _❌ | _❌ | _❌

_{[0838 - Push Dominoes](https://leetcode.com/problems/push-dominoes/)} | _❌ | _❌ | _{[✔️](cpp%2F0838-push-dominoes.cpp)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F0838-push-dominoes.java)} | _{[✔️](javascript%2F0838-push-dominoes.js)} | _{[✔️](kotlin%2F0838-push-dominoes.kt)} | _{[✔️](python%2F0838-push-dominoes.py)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](typescript%2F0838-push-dominoes.ts)}

_{[0187 - Repeated DNA Sequences](https://leetcode.com/problems/repeated-dna-sequences/)} | _❌ | _❌ | _{[✔️](cpp%2F0187-repeated-dna-sequences.cpp)} | _{[✔️](csharp%2F0187-repeated-dna-sequences.cs)} | _❌ | _{[✔️](go%2F0187-repeated-dna-sequences.go)} | _❌ | _{[✔️](java%2F0187-repeated-dna-sequences.java)} | _{[✔️](javascript%2F0187-repeated-dna-sequences.js)} | _{[✔️](kotlin%2F0187-repeated-dna-sequences.kt)} | _{[✔️](python%2F0187-repeated-dna-sequences.py)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](typescript%2F0187-repeated-dna-sequences.ts)}

_{[0380 - Insert Delete Get Random O(1)](https://leetcode.com/problems/insert-delete-getrandom-o1/)} | _❌ | _❌ | _{[✔️](cpp%2F0380-insert-delete-getrandom-o1.cpp)} | _❌ | _❌ | _{[✔️](go%2F0380-insert-delete-getrandom-o1.go)} | _❌ | _{[✔️](java%2F0380-insert-delete-getrandom-o1.java)} | _{[✔️](javascript%2F0380-insert-delete-getrandom-o1.js)} | _{[✔️](kotlin%2F0380-insert-delete-getrandom-o1.kt)} | _{[✔️](python%2F0380-insert-delete-getrandom-o1.py)} | _❌ | _{[✔️](rust%2F0380-insert-delete-getrandom-o1.rs)} | _❌ | _{[✔️](swift%2F0380-insert-delete-getrandom-o1.swift)} | _{[✔️](typescript%2F0380-insert-delete-getrandom-o1.ts)}

_{[1461 - Check if a String Contains all Binary Codes of Size K](https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k/)} | _❌ | _❌ | _{[✔️](cpp%2F1461-check-if-a-string-contains-all-binary-codes-of-size-k.cpp)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F1461-check-if-a-string-contains-all-binary-codes-of-size-k.java)} | _{[✔️](javascript%2F1461-check-if-a-string-contains-all-binary-codes-of-size-k.js)} | _{[✔️](kotlin%2F1461-check-if-a-string-contains-all-binary-codes-of-size-k.kt)} | _{[✔️](python%2F1461-check-if-a-string-contains-all-binary-codes-of-size-k.py)} | _❌ | _❌ | _❌ | _❌ | _❌

_{[0304 - Range Sum Query 2D Immutable](https://leetcode.com/problems/range-sum-query-2d-immutable/)} | _❌ | _❌ | _{[✔️](cpp%2F0304-range-sum-query-2d-immutable.cpp)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F0304-range-sum-query-2d-immutable.java)} | _{[✔️](javascript%2F0304-range-sum-query-2d-immutable.js)} | _{[✔️](kotlin%2F0304-range-sum-query-2d-immutable.kt)} | _{[✔️](python%2F0304-range-sum-query-2d-immutable.py)} | _❌ | _❌ | _❌ | _{[✔️](swift%2F0304-range-sum-query-2d-immutable.swift)} | _❌

_{[0665 - Non Decreasing Array](https://leetcode.com/problems/non-decreasing-array/)} | _❌ | _{[✔️](c%2F0665-non-decreasing-array.c)} | _{[✔️](cpp%2F0665-non-decreasing-array.cpp)} | _{[✔️](csharp%2F0665-non-decreasing-array.cs)} | _❌ | _{[✔️](go%2F0665-non-decreasing-array.go)} | _❌ | _{[✔️](java%2F0665-non-decreasing-array.java)} | _{[✔️](javascript%2F0665-non-decreasing-array.js)} | _{[✔️](kotlin%2F0665-non-decreasing-array.kt)} | _{[✔️](python%2F0665-non-decreasing-array.py)} | _❌ | _❌ | _{[✔️](scala%2F0665-non-decreasing-array.scala)} | _❌ | _{[✔️](typescript%2F0665-non-decreasing-array.ts)}

_{[0041 - First Missing Positive](https://leetcode.com/problems/first-missing-positive/)} | _❌ | _{[✔️](c%2F0041-first-missing-positive.c)} | _{[✔️](cpp%2F0041-first-missing-positive.cpp)} | _❌ | _❌ | _{[✔️](go%2F0041-first-missing-positive.go)} | _❌ | _{[✔️](java%2F0041-first-missing-positive.java)} | _{[✔️](javascript%2F0041-first-missing-positive.js)} | _{[✔️](kotlin%2F0041-first-missing-positive.kt)} | _{[✔️](python%2F0041-first-missing-positive.py)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](typescript%2F0041-first-missing-positive.ts)}

_{[1822 - Sign of An Array](https://leetcode.com/problems/sign-of-the-product-of-an-array/)} | _❌ | _{[✔️](c%2F1822-sign-of-the-product-of-an-array.c)} | _{[✔️](cpp%2F1822-sign-of-the-product-of-an-array.cpp)} | _❌ | _❌ | _{[✔️](go%2F1822-sign-of-the-product-of-an-array.go)} | _❌ | _{[✔️](java%2F1822-sign-of-the-product-of-an-array.java)} | _{[✔️](javascript%2F1822-sign-of-the-product-of-an-array.js)} | _{[✔️](kotlin%2F1822-sign-of-the-product-of-an-array.kt)} | _{[✔️](python%2F1822-sign-of-the-product-of-an-array.py)} | _❌ | _{[✔️](rust%2F1822-sign-of-the-product-of-an-array.rs)} | _❌ | _❌ | _{[✔️](typescript%2F1822-sign-of-the-product-of-an-array.ts)}

_{[2215 - Find the Difference of Two Arrays](https://leetcode.com/problems/find-the-difference-of-two-arrays/)} | _❌ | _{[✔️](c%2F2215-find-the-difference-of-two-arrays.c)} | _{[✔️](cpp%2F2215-find-the-difference-of-two-arrays.cpp)} | _{[✔️](csharp%2F2215-find-the-difference-of-two-arrays.cs)} | _❌ | _❌ | _❌ | _{[✔️](java%2F2215-find-the-difference-of-two-arrays.java)} | _{[✔️](javascript%2F2215-find-the-difference-of-two-arrays.js)} | _{[✔️](kotlin%2F2215-find-the-difference-of-two-arrays.kt)} | _{[✔️](python%2F2215-find-the-difference-of-two-arrays.py)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](typescript%2F2215-find-the-difference-of-two-arrays.ts)}

_{[1603 - Design Parking System](https://leetcode.com/problems/design-parking-system/)} | _❌ | _❌ | _{[✔️](cpp%2F1603-design-parking-system.cpp)} | _{[✔️](csharp%2F1603-design-parking-system.cs)} | _❌ | _❌ | _❌ | _{[✔️](java%2F1603-design-parking-system.java)} | _{[✔️](javascript%2F1603-design-parking-system.js)} | _{[✔️](kotlin%2F1603-design-parking-system.kt)} | _{[✔️](python%2F1603-design-parking-system.py)} | _❌ | _❌ | _❌ | _❌ | _❌

_{[2348 - Number of Zero-Filled Subarrays](https://leetcode.com/problems/number-of-zero-filled-subarrays/)} | _❌ | _❌ | _{[✔️](cpp%2F2348-number-of-zero-filled-subarrays.cpp)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F2348-number-of-zero-filled-subarrays.java)} | _{[✔️](javascript%2F2348-number-of-zero-filled-subarrays.js)} | _{[✔️](kotlin%2F2348-number-of-zero-filled-subarrays.kt)} | _{[✔️](python%2F2348-number-of-zero-filled-subarrays.py)} | _❌ | _❌ | _❌ | _❌ | _❌

_{[2405 - Optimal Partition of String](https://leetcode.com/problems/optimal-partition-of-string/)} | _❌ | _❌ | _{[✔️](cpp%2F2405-optimal-partition-of-string.cpp)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F2405-optimal-partition-of-string.java)} | _❌ | _{[✔️](kotlin%2F2405-optimal-partition-of-string.kt)} | _{[✔️](python%2F2405-optimal-partition-of-string.py)} | _❌ | _❌ | _❌ | _❌ | _❌

_{[1396 - Design Underground System](https://leetcode.com/problems/design-underground-system/)} | _❌ | _❌ | _❌ | _{[✔️](csharp%2F1396-design-underground-system.cs)} | _❌ | _❌ | _❌ | _{[✔️](java%2F1396-design-underground-system.java)} | _{[✔️](javascript%2F1396-design-underground-system.js)} | _{[✔️](kotlin%2F1396-design-underground-system.kt)} | _{[✔️](python%2F1396-design-underground-system.py)} | _❌ | _❌ | _❌ | _❌ | _❌

_{[2483 - Minimum Penalty for a Shop](https://leetcode.com/problems/minimum-penalty-for-a-shop/)} | _❌ | _❌ | _{[✔️](cpp%2F2483-minimum-penalty-for-a-shop.cpp)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F2483-minimum-penalty-for-a-shop.java)} | _❌ | _{[✔️](kotlin%2F2483-minimum-penalty-for-a-shop.kt)} | _{[✔️](python%2F2483-minimum-penalty-for-a-shop.py)} | _❌ | _❌ | _❌ | _❌ | _❌

_{[0068 - Text Justification](https://leetcode.com/problems/text-justification/)} | _❌ | _❌ | _❌ | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F0068-text-justification.java)} | _❌ | _{[✔️](kotlin%2F0068-text-justification.kt)} | _{[✔️](python%2F0068-text-justification.py)} | _❌ | _❌ | _❌ | _❌ | _❌

_{[2306 - Naming a Company](https://leetcode.com/problems/naming-a-company/)} | _❌ | _❌ | _{[✔️](cpp%2F2306-naming-a-company.cpp)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F2306-naming-a-company.java)} | _{[✔️](javascript%2F2306-naming-a-company.js)} | _{[✔️](kotlin%2F2306-naming-a-company.kt)} | _{[✔️](python%2F2306-naming-a-company.py)} | _❌ | _❌ | _❌ | _❌ | _❌

### Two Pointers

_Problem | _articles | _C | _C++ | _C# | _Dart | _GO | _hints | _Java | _JS | _Kotlin | _Python | _Ruby | _Rust | _Scala | _Swift | _TS

---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ----

_{[0125 - Valid Palindrome](https://leetcode.com/problems/valid-palindrome/)} | 
❌
 | _{[✔️](c%2F0125-valid-palindrome.c)} | _{[✔️](cpp%2F0125-valid-palindrome.cpp)} | _{[✔️](csharp%2F0125-valid-palindrome.cs)} | _{[✔️](dart%2F0125-valid-palindrome.dart)} | _{[✔️](go%2F0125-valid-palindrome.go)} | _❌ | _{[✔️](java%2F0125-valid-palindrome.java)} | _{[✔️](javascript%2F0125-valid-palindrome.js)} | _{[✔️](kotlin%2F0125-valid-palindrome.kt)} | _{[✔️](python%2F0125-valid-palindrome.py)} | _{[✔️](ruby%2F0125-valid-palindrome.rb)} | _{[✔️](rust%2F0125-valid-palindrome.rs)} | _{[✔️](scala%2F0125-valid-palindrome.scala)} | _{[✔️](swift%2F0125-valid-palindrome.swift)} | _{[✔️](typescript%2F0125-valid-palindrome.ts)}

_{[0680 - Valid Palindrome II](https://leetcode.com/problems/valid-palindrome-ii/)} | _❌ | _{[✔️](c%2F0680-valid-palindrome-ii.c)} | _{[✔️](cpp%2F0680-valid-palindrome-ii.cpp)} | _{[✔️](csharp%2F0680-valid-palindrome-ii.cs)} | _❌ | _{[✔️](go%2F0680-valid-palindrome-ii.go)} | _❌ | _{[✔️](java%2F0680-valid-palindrome-ii.java)} | _{[✔️](javascript%2F0680-valid-palindrome-ii.js)} | _{[✔️](kotlin%2F0680-valid-palindrome-ii.kt)} | _{[✔️](python%2F0680-valid-palindrome-ii.py)} | _❌ | _{[✔️](rust%2F0680-valid-palindrome-II.rs)} | _❌ | _❌ | _{[✔️](typescript%2F0680-valid-palindrome-ii.ts)}

_{[1984 - Minimum Difference Between Highest And Lowest of K Scores](https://leetcode.com/problems/minimum-difference-between-highest-and-lowest-of-k-scores/)} | _❌ | _{[✔️](c%2F1984-minimum-difference-between-highest-and-lowest-of-k-scores.c)} | _{[✔️](cpp%2F1984-minimum-difference-between-highest-and-lowest-of-k-scores.cpp)} | _{[✔️](csharp%2F1984-minimum-difference-between-highest-and-lowest-of-k-scores.cs)} | _❌ | _{[✔️](go%2F1984-minimum-difference-between-highest-and-lowest-of-k-scores.go)} | _❌ | _{[✔️](java%2F1984-minimum-difference-between-highest-and-lowest-of-k-scores.java)} | _{[✔️](javascript%2F1984-Minimum-Difference-Between-Highest-and-Lowest-of-K-Scores.js)} | _{[✔️](kotlin%2F1984-minimum-difference-between-highest-and-lowest-of-k-scores.kt)} | _{[✔️](python%2F1984-minimum-difference-between-highest-and-lowest-of-k-scores.py)} | _❌ | _{[✔️](rust%2F1984-minimum-difference-between-highest-and-lowest-of-k-scores.rs)} | _❌ | _❌ | _{[✔️](typescript%2F1984-minimum-difference-between-highest-and-lowest-of-k-scores.ts)}

_{[1768 - Merge Strings Alternately](https://leetcode.com/problems/merge-strings-alternately/)} | _❌ | _❌ | _{[✔️](cpp%2F1768-merge-strings-alternately.cpp)} | _{[✔️](csharp%2F1768-merge-strings-alternately.cs)} | _❌ | _❌ | _❌ | _{[✔️](java%2F1768-merge-strings-alternately.java)} | _{[✔️](javascript%2F1768-merge-strings-alternately.js)} | _{[✔️](kotlin%2F1768-merge-strings-alternately.kt)} | _{[✔️](python%2F1768-merge-strings-alternately.py)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](typescript%2F1768-merge-strings-alternately.ts)}

_{[0344 - Reverse String](https://leetcode.com/problems/reverse-string/)} | _❌ | _{[✔️](c%2F0344-reverse-string.c)} | _{[✔️](cpp%2F0344-Reverse-String.cpp)} | _{[✔️](csharp%2F0344-reverse-string.cs)} | _{[✔️](dart%2F0344-reverse-string.dart)} | _{[✔️](go%2F0344-reverse-string.go)} | _❌ | _{[✔️](java%2F0344-reverse-string.java)} | _{[✔️](javascript%2F0344-reverse-string.js)} | _{[✔️](kotlin%2F0344-reverse-string.kt)} | _{[✔️](python%2F0344-reverse-string.py)} | _❌ | _{[✔️](rust%2F0344-reverse-string.rs)} | _❌ | _{[✔️](swift%2F0344-reverse-string.swift)} | _{[✔️](typescript%2F0344-reverse-string.ts)}

_{[0088 - Merge Sorted Array](https://leetcode.com/problems/merge-sorted-array/)} | _❌ | _{[✔️](c%2F0088-merge-sorted-array.c)} | _{[✔️](cpp%2F0088-Merge-sorted-array.cpp)} | _{[✔️](csharp%2F0088-merge-sorted-array.cs)} | _❌ | _{[✔️](go%2F0088-merge-sorted-array.go)} | _❌ | _{[✔️](java%2F0088-merge-sorted-array.java)} | _{[✔️](javascript%2F0088-merge-sorted-array.js)} | _{[✔️](kotlin%2F0088-merge-sorted-array.kt)} | _{[✔️](python%2F0088-merge-sorted-array.py)} | _❌ | _{[✔️](rust%2F0088-merge-sorted-array.rs)} | _❌ | _❌ | _{[✔️](typescript%2F0088-merge-sorted-array.ts)}

_{[0283 - Move Zeroes](https://leetcode.com/problems/move-zeroes/)} | _❌ | _{[✔️](c%2F0283-move-zeroes.c)} | _{[✔️](cpp%2F0283-move-zeroes.cpp)} | _{[✔️](csharp%2F0283-move-zeroes.cs)} | _❌ | _{[✔️](go%2F0283-move-zeroes.go)} | _❌ | _{[✔️](java%2F0283-move-zeroes.java)} | _{[✔️](javascript%2F0283-move-zeroes.js)} | _{[✔️](kotlin%2F0283-move-zeroes.kt)} | _{[✔️](python%2F0283-move-zeroes.py)} | _❌ | _{[✔️](rust%2F0283-move-zeroes.rs)} | _❌ | _{[✔️](swift%2F0283-Move-Zeroes.Swift)} | _{[✔️](typescript%2F0283-move-zeroes.ts)}

_{[0026 - Remove Duplicates From Sorted Array](https://leetcode.com/problems/remove-duplicates-from-sorted-array/)} | _❌ | _{[✔️](c%2F0026-remove-duplicates-from-sorted-array.c)} | _{[✔️](cpp%2F0026-remove-duplicates-from-sorted-array.cpp)} | _{[✔️](csharp%2F0026-remove-duplicates-from-sorted-array.cs)} | _❌ | _{[✔️](go%2F0026-remove-duplicates-from-sorted-array.go)} | _❌ | _{[✔️](java%2F0026-remove-duplicates-from-sorted-array.java)} | _{[✔️](javascript%2F0026-remove-duplicates-from-sorted-array.js)} | _{[✔️](kotlin%2F0026-remove-duplicates-from-sorted-array.kt)} | _{[✔️](python%2F0026-remove-duplicates-from-sorted-array.py)} | _❌ | _{[✔️](rust%2F0026-remove-duplicates-from-sorted-array.rs)} | _❌ | _{[✔️](swift%2F0026-Remove-Duplicates-from-Sorted-Array.swift)} | _{[✔️](typescript%2F0026-remove-duplicates-from-sorted-array.ts)}

_{[0080 - Remove Duplicates From Sorted Array II](https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii/)} | _❌ | _{[✔️](c%2F0080-remove-duplicates-from-sorted-array-ii.c)} | _{[✔️](cpp%2F0080-remove-duplicates-from-sorted-array-ii.cpp)} | _{[✔️](csharp%2F0080-remove-duplicates-from-sorted-array-ii.cs)} | _❌ | _❌ | _❌ | _{[✔️](java%2F0080-remove-duplicates-from-sorted-array-ii.java)} | _{[✔️](javascript%2F0080-remove-duplicates-from-sorted-array-ii.js)} | _{[✔️](kotlin%2F0080-remove-duplicates-from-sorted-array-ii.kt)} | _{[✔️](python%2F0080-remove-duplicates-from-sorted-array-ii.py)} | _❌ | _{[✔️](rust%2F0080-remove-duplicates-from-sorted-array-ii.rs)} | _❌ | _{[✔️](swift%2F0080-remove-duplicates-from-sorted-array-ii.swift)} | _❌

_{[0167 - Two Sum II Input Array Is Sorted](https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/)} | _❌ | _{[✔️](c%2F0167-two-sum-ii-input-array-is-sorted.c)} | _{[✔️](cpp%2F0167-two-sum-ii-input-array-is-sorted.cpp)} | _{[✔️](csharp%2F0167-two-sum-ii-input-array-is-sorted.cs)} | _❌ | _{[✔️](go%2F0167-two-sum-ii-input-array-is-sorted.go)} | _❌ | _{[✔️](java%2F0167-two-sum-ii-input-array-is-sorted.java)} | _{[✔️](javascript%2F0167-two-sum-ii-input-array-is-sorted.js)} | _{[✔️](kotlin%2F0167-two-sum-ii-input-array-is-sorted.kt)} | _{[✔️](python%2F0167-two-sum-ii-input-array-is-sorted.py)} | _{[✔️](ruby%2F0167-two-sum-ii-input-array-is-sorted.rb)} | _{[✔️](rust%2F0167-two-sum-ii-input-array-is-sorted.rs)} | _{[✔️](scala%2F0167-two-sum-ii-input-array-is-sorted.scala)} | _{[✔️](swift%2F0167-two-sum-ii-input-array-is-sorted.swift)} | _{[✔️](typescript%2F0167-two-sum-ii-input-array-is-sorted.ts)}

_{[0015 - 3Sum](https://leetcode.com/problems/3sum/)} | _❌ | _{[✔️](c%2F0015-3sum.c)} | _{[✔️](cpp%2F0015-3sum.cpp)} | _{[✔️](csharp%2F0015-3sum.cs)} | _{[✔️](dart%2F0015-3sum.dart)} | _{[✔️](go%2F0015-3sum.go)} | _❌ | _{[✔️](java%2F0015-3sum.java)} | _{[✔️](javascript%2F0015-3sum.js)} | _{[✔️](kotlin%2F0015-3sum.kt)} | _{[✔️](python%2F0015-3sum.py)} | _{[✔️](ruby%2F0015-3sum.rb)} | _{[✔️](rust%2F0015-3sum.rs)} | _{[✔️](scala%2F0015-3sum.scala)} | _{[✔️](swift%2F0015-3sum.swift)} | _{[✔️](typescript%2F0015-3sum.ts)}

_{[0018 - 4Sum](https://leetcode.com/problems/4sum/)} | _❌ | _❌ | _{[✔️](cpp%2F0018-4sum.cpp)} | _❌ | _❌ | _{[✔️](go%2F0018-4Sum.go)} | _❌ | _{[✔️](java%2F0018-4sum.java)} | _{[✔️](javascript%2F0018-4sum.js)} | _{[✔️](kotlin%2F0018-4sum.kt)} | _{[✔️](python%2F0018-4sum.py)} | _❌ | _❌ | _❌ | _{[✔️](swift%2F0018-4sum.swift)} | _{[✔️](typescript%2F0018-4sum.ts)}

_{[0011 - Container With Most Water](https://leetcode.com/problems/container-with-most-water/)} | _❌ | _{[✔️](c%2F0011-container-with-most-water.c)} | _{[✔️](cpp%2F0011-container-with-most-water.cpp)} | _{[✔️](csharp%2F0011-container-with-most-water.cs)} | _{[✔️](dart%2F0011-container-with-most-water.dart)} | _{[✔️](go%2F0011-container-with-most-water.go)} | _❌ | _{[✔️](java%2F0011-container-with-most-water.java)} | _{[✔️](javascript%2F0011-container-with-most-water.js)} | _{[✔️](kotlin%2F0011-container-with-most-water.kt)} | _{[✔️](python%2F0011-container-with-most-water.py)} | _{[✔️](ruby%2F0011-container-with-most-water.rb)} | _{[✔️](rust%2F0011-container-with-most-water.rs)} | _{[✔️](scala%2F0011-container-with-most-water.scala)} | _{[✔️](swift%2F0011-container-with-most-water.swift)} | _{[✔️](typescript%2F0011-container-with-most-water.ts)}

_{[1498 - Number of Subsequences That Satisfy The Given Sum Condition](https://leetcode.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition/)} | _❌ | _❌ | _{[✔️](cpp%2F1498-number-of-subsequences-that-satisfy-the-given-sum-condition.cpp)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](java%2F1498-number-of-subsequences-that-satisfy-the-given-sum-condition.java)} | _❌ | _{[✔️](kotlin%2F1498-number-of-subsequences-that-satisfy-the-given-sum-condition.kt)} | _{[✔️](python%2F1498-number-of-subsequences-that-satisfy-the-given-sum-condition.py)} | _❌ | _❌ | _❌ | _❌ | _❌

_{[0189 - Rotate Array](https://leetcode.com/problems/rotate-array/)} | _❌ | _❌ | _{[✔️](cpp%2F0189-rotate-array.cpp)} | _❌ | _❌ | _{[✔️](go%2F0189-rotate-array.go)} | _❌ | _{[✔️](java%2F0189-rotate-array.java)} | _{[✔️](javascript%2F0189-rotate-array.js)} | _{[✔️](kotlin%2F0189-rotate-array.kt)} | _{[✔️](python%2F0189-rotate-array.py)} | _❌ | _❌ | _❌ | _❌ | _{[✔️](typescript%2F0189-rotate-array.ts)}

_{[1968 - Array With Elements Not Equal to Average of Neighbors](https://leetcode.com/problems/array-with-elements-not-equal-to-average-of-neighbors/)} | _❌ | _{[✔️](c%2F1968-array-with-elements-not-equal-to-average-of-neighbors.c)} | _{[✔️](cpp%2F1968-array-with-elements-not-equal-to-average-of-neighbors.cpp)} | _❌ | _❌ | _{[✔️](go%2F1968-array-with-elements-not-equal-to-average-of-neighbors.go)} | _❌ | _{[✔️](java%2F1968-array-with-elements-not-equal-to-average-of-neighbors.java)} | _{[✔️](javascript%2F1968-array-with-elements-not-equal-to-average-of-neighbors.js)} | _{[✔️](kotlin%2F1968-array-with-elements-not-equal-to-average-of-neighbors.kt)} | _{[✔️](python%2F1968-array-with-elements-not-equal-to-average-of-neighbors.py)} | _❌ | _❌ | _❌ | _❌ | _❌

_{[0881 - Boats to Save People](https://leetcode.com/problems/boats-to-save-people/)} | _❌ | _{[✔️](c%2F0881-boats-to-save-people.c)} | _{[✔️](cpp%2F0881-boats-to-save-people.cpp)} | _❌ | _❌ | _{[✔️](go%2F0881-boats-to-save-people.go)} | _❌ | _{[✔️](java%2F0881-boats-to-save-people.java)} | _{[✔️](javascript%2F0881-boats-to-save-people.js)} | _{[✔️](kotlin%2F0881-boats-to-save-people.kt)} | _{[✔️](python%2F0881-boats-to-save-people.py)} | _❌ | _❌ | _❌ | _{[✔️](swift%2F0881-boats-to-save-people.swift)} | _{[✔️](typescript%2F0881-boats-to-save-people.ts)}

_{[0042 - Trapping Rain Water](https://leetcode.com/problems/trapping-rain-water/)} | _❌ | _{[✔️](c%2F0042-trapping-rain-water.c)} | _{[✔️](cpp%2F0042-trapping-rain-water.cpp)} | _{[✔️](csharp%2F0042-trapping-rain-water.cs)} | _{[✔️](dart%2F0042-trapping-rain-water.dart)} | _{[✔️](go%2F0042-trapping-rain-water.go)} | _❌ | _{[✔️](java%2F0042-trapping-rain-water.java)} | _{[✔️](javascript%2F0042-trapping-rain-water.js)} | _{[✔️](kotlin%2F0042-trapping-rain-water.kt)} | _{[✔️](python%2F0042-trapping-rain-water.py)} | _{[✔️](ruby%2F0042-trapping-rain-water.rb)} | _{[✔️](rust%2F0042-trapping-rain-water.rs)} | _❌ | _{[✔️](swift%2F0042-trapping-rain-water.swift)} | _{[✔️](typescript%2F0042-trapping-rain-water.ts)}

### Sliding Window

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