Skip to content

/ Leetcode

Leetcode solutions in C++, C#, Python, Java, Scala, JS, Kotlin, Go, etc
leetcode leetcode-solutions leetcode-cpp leetcode-csharp leetcode-python3 leetcode-java leetcode-scala leetcode-js leetcode-kotlin leetcode-go
Kotlin C++ Java Scala Python C# Other
  1. Kotlin 31.2%
  2. C++ 19.9%
  3. Java 18.8%
  4. Scala 12.0%
  5. Python 7.2%
  6. C# 5.6%
  7. Other 5.3%
Branch: master
Find file
Clone or download

Clone with HTTPS

Use Git or checkout with SVN using the web URL.

Open in Desktop Download ZIP

Latest commit

student114
student114 Add Solution python
Latest commit 146d180 Jun 21, 2020

Files

Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
.github Check more directories May 6, 2020
30-Day-Leetcoding-Challenge add cpp solution for counting elements May 6, 2020
June-LeetCoding-Challenge Add Solution python Jun 21, 2020
May-LeetCoding-Challenge 05-First-Unique-Character-In-A-String Jun 20, 2020
Template/Maths/Binary-Search Add binary search template May 1, 2020
.gitignore add scala solution for Jewels-and-Stones May 2, 2020
README.md update doc Jun 18, 2020
untitled update doc. Jun 12, 2020

README.md

LeetCode

https://leetcode.com

June LeetCoding Challenge

Click here for problem descriptions.

Solutions in various programming languages are provided. Enjoy it.

  1. Invert Binary Tree: Tree Traversal
  2. Delete Node in a Linked List: Linked List
  3. Two City Scheduling: DP
  4. Reverse String: String
  5. Random Pick With Weight: Binary Search + Probability
  6. Queue Reconstruction by Height: Greedy
  7. Coin Change 2: DP
  8. Power of Two: Bitwise manipulation
  9. Is Subsequence: Two pointers / DP
  10. Search Insert Position: Binary Search
  11. Sort Colors: Two Pointers
  12. Insert Delete GetRandom: Hash Table
  13. Largest Divisible Subset: DP
  14. Cheapest Flights Within K Stops: DP
  15. Search in a Binary Search Tree: Recursive
  16. Validate IP Address: String
  17. Surrounded Regions: BFS
  18. H Index II: Binary Search

May LeetCoding Challenge

Click here for problem descriptions.

Solutions in various programming languages are provided. Enjoy it.

  1. First Bad String: Binary search.
  2. Jewels and Stones: Hash Table
  3. Ransom Note: Hash Table
  4. Number Complement: Bitwise Manipulation
  5. First Unique Character In a String: Hash Table
  6. Majority Element: Ad hoc
  7. Cousins in Binary Tree: BFS / Recursion
  8. Check if it is straight line: Cross Product
  9. Valid Perfect Square: Math
  10. Find the Town Judge: Graph Theory
  11. Flood Fill: BFS
  12. Single Element In a Sorted Array: Binary Search
  13. Remove K Digits: Greedy
  14. Implement Trie: Trie
  15. Maximum Sum Circular Subarray: DP
  16. Odd Even Linked List: Linked List
  17. Find All Anagrams in a String: Sliding window + Hash Table
  18. Permutation In String: Sliding window + Hash Table
  19. Online Stock Span: DP
  20. Kth-Smallest-Element-In-A-BST: BST
  21. Count Square Submatrices with All Ones: DP
  22. Sort Characters By Frequency: Hash Table
  23. Interval List Intersections: Two Pointers
  24. Construct Binary Search Tree from Preorder Traversal: Binary Search Tree
  25. Uncrossed Lines: DP
  26. Contiguous Array: Hash Table
  27. Possible Bipartition: Bipartite Graph
  28. Counting Bits: Math
  29. Course Schedule: Topological Sort
  30. K Closest Points to Origin: Priority_queue, Sort
  31. Edit Distance: DP

30-Day (April) LeetCoding Challenge

Click here for problem descriptions.

  1. Single Number: Bitwise Manipulation
  2. Happy Number: Implementation
  3. Maximum Subarray: DP
  4. Move Zeros: Two pointers
  5. Best Time to Buy and Sell Stock II: Greedy
  6. Group Anagrams: Hash Table
You can’t perform that action at this time.