30 Days Leetcoding Challenge Solutions May Leet Code 2020
Link all solutions of Week 1 challenge
| Number | Problem Challenge | Solution |
|---|---|---|
| 1 | First Bad Number | Swift and C++ |
| 2 | Jewel And Stone | Swift and C++ |
| 3 | Ransom Note | Swift and C++ |
| 4 | Number Complement | Swift and C++ |
| 5 | First Unique Character | Swift and C++ |
| 6 | Majoirity Element | Swift and C++ |
| 7 | Cousins In Binary Tree | Swift |
Link solutions of week 2 challenge
| Number | Problem Challenge | Solution |
|---|---|---|
| 8 | Straight Line | Swift |
| 9 | Square | Swift |
| 10 | Town Judge | Swift |
| 11 | FloodFill | Swift |
| 12 | Single Element | Swift |
| 13 | Remove K Digit | Swift |
| 14 | Trie Prefix Tree | Swift |
Link solutions of Week 3 challenge
| Number | Problem Challenge | Solution |
|---|---|---|
| 15 | Maximum Sum Circular Subarray | Swift |
| 16 | Odd Even Linked List | Swift |
| 17 | Find All Anagrams in a String | Swift |
| 18 | Permutation in String | Swift |
| 19 | Online Stock Span | Swift |
| 20 | Kth Smallest Element in a BST | Swift |
| 21 | Count Square Submatrices with All Ones | Swift |
Link solutions of Week 4 challenge
| Number | Problem Challenge | Solution |
|---|---|---|
| 22 | Sort Characters By Frequency | Swift |
| 23 | Interval List Intersections | Swift |
| 24 | Construct Binary Search Tree from Preorder Traversal | Swift |
| 25 | Uncrossed Lines | Swift |
| 26 | Contiguous Array | Swift |
| 27 | Possible Bipartition | Swift |