My solutions for problems in LeetCode
So far:
| Problem | Difficulty | Faster than % of all submissions | Space usage better than % of all submissions | Date of submission |
|---|---|---|---|---|
| Two Sum | Easy | 89.19% | NA | 15th Dec 2018 |
| Add Two Numbers | Medium | 99.53% | NA | 15th Dec 2018 |
| String to Integer (atoi) | Medium | 98.49% | NA | 15th Dec 2018 |
| Length of Longest Substring | Medium | 79.48% | NA | 30th Dec 2018 |
| Container With Most Water | Medium | 100% | NA | 1st Jan 2019 |
| Merge k Sorted Lists | Hard | 67.07% | NA | 1st Jan 2019 |
| Validate Binary Search Tree | Medium | 100% | NA | 2nd Jan 2019 |
| Swap Nodes in Pairs | Medium | 55.66% | NA | 6th Jan 2019 |
| House Robber III | Medium | 99.77% | NA | 7th Jan 2019 |
| Letter Combinations of a Phone Number | Medium | 92.47% | NA | 8th Jan 2019 |
| Validate Stack Sequences | Medium | 100% | NA | 9th Jan 2019 |
| Binary Tree Inorder Traversal | Medium | 21.03% | NA | 10th Jan 2019 |
| Sum Root to Leaf Numbers | Medium | 16.67% | NA | 14th Jan 2019 |
| Delete Columns to Make Sorted II | Medium | 100% | NA | 16th Jan 2019 |
| Set Matrix Zeroes | Medium | 39.51% | NA | 17th Jan 2019 |
| Lexicographical Numbers | Medium | 63.16% | NA | 18th Jan 2019 |
| Check Completeness of a Binary Tree | Medium | 95.57% | NA | 19th Jan 2019 |
| Top K Frequent Element | Medium | 99.13% | NA | 23rd Jan 2019 |
| Two Sum IV - Input is a BST | Easy | 91.37% | NA | 24th Jan 2019 |
| Flood Fill | Easy | 100% | NA | 28th Jan 2019 |
| Intersection of Two Arrays II | Easy | 83.87% | NA | 28th Jan 2019 |
| Shifting Letters | Medium | 95.56% | NA | 29th Jan 2019 |
| Find Largest Value in Each Tree Row | Medium | 100% | NA | 29th Jan 2019 |
| Maximum Depth of N-ary Tree | Easy | 100% | NA | 29th Jan 2019 |
| Delete Operation for Two Strings | Medium | 80.82% | NA | 29th Jan 2019 |
| Max Increase to Keep City Skyline | Medium | 100% | NA | 30th Jan 2019 |
| 4 Sum II | Medium | 70.59% | 50% | 2nd Feb 2019 |
| Reverse Words in a String III | Easy | 36.11% | 44.44% | 3rd Feb 2019 |
| Partition List | Medium | 100% | 41.04% | 6th Feb 2019 |
| Remove Linked List Elements | Easy | 100% | 22.13% | 7th Feb 2019 |
| Longest Palindrome | Easy | 22.90% | 14.85% | 7th Feb 2019 |
| Online Stock Span | Medium | 25.35% | 100% | 9th Feb 2019 |
| Array Nesting | Medium | 52.17% | 17.86% | 9th Feb 2019 |
| Find Pivot Index | Easy | 51.72% | 31.58% | 10th Feb 2019 |
| Reshape the Matrix | Easy | 30.45% | 24.66% | 11th Feb 2019 |
| Populating Next Right Pointers in Each Node | Medium | 39.13% | 100% (Bug) | 12th Feb 2019 |
| Number of Islands | Medium | 44.34% | 100% (Bug) | 12th Feb 2019 |
| Hamming Distance | Easy | 36.91% | 100% (Bug) | 13th Feb 2019 |
| Path Sum II | Medium | 63.14% | 100% (Bug) | 13th Feb 2019 |
| Longest Increasing Subsequence | Medium | 28.57% | 100% (Bug) | 14th Feb 2019 |
| Average of Levels in Binary Tree | Easy | 15.17% | 100% (Bug) | 15th Feb 2019 |
| Is Subsequence | Medium | 61.49% | 100% (Bug) | 15th Feb 2019 |
| Maximum Length of Repeated Subarray | Medium | 53.45% | 100% (Bug) | 16th Feb 2019 |
| Jewels and Stones | Easy | 38.64% | 100% (Bug) | 16th Feb 2019 |
| Maximum Depth of Binary Tree | Easy | 46.14% | 100% (Bug) | 18th Feb 2019 |
| Counting Bits | Medium | 66.67% | 100% (Bug) | 18th Feb 2019 |
| Reverse String | Easy | 40.40% | 100% (Bug) | 18th Feb 2019 |
| Largest Number | Medium | 92.39% | 100% (Bug) | 18th Feb 2019 |
| Valid Anagram | Easy | 63.83% | 100% (Bug) | 19th Feb 2019 |
| First Unique Character in a String | Easy | 54.50% | 100% (Bug) | 19th Feb 2019 |
| Sort Characters by Frequency | Medium | 13.94% | 6.25% | 20th Feb 2019 |
| Group Anagrams | Medium | 59.57% | 41.82% | 21st Feb 2019 |
| Symmetric Tree | Easy | 54.50% | 70% | 21st Feb 2019 |
| Longest Univalue Path | Easy | 63.41% | 94.12% | 23rd Feb 2019 |
| Kth Smallest Element in a BST | Medium | 88.03% | 74.07% | 24th Feb 2019 |
| N-ary Tree Level Order Traversal | Easy | 100% | 8.51% | 24th Feb 2019 |
| Max Area of Island | Medium | 69.11% | 52.38% | 25th Feb 2019 |
| Product of Array Except Self | Medium | 100% | 81.63% | 26th Feb 2019 |
| Remove Nth Node From End of List | Medium | 58.41% | 20.91% | 27th Feb 2019 |
| Course Schedule | Medium | Failed in last test case | Failed in last test case | 2nd Mar 2019 |
| Combination Sum II | Medium | TLE | TLE | 4th Mar 2019 |
| Linked List Cycle | Easy | 61.44% | 97.11% | 5th Mar 2019 |
| Linked List Cycle II | Medium | 50.55% | 60.53% | 5th Mar 2019 |
| Sliding Window Maximum | Hard | 94.10% | 100% | 6th Mar 2019 |
| Unique Paths | Medium | 88.69% | 95.52% | 7th Mar 2019 |
| Unique Paths II | Medium | 93.22% | 56.10% | 7th Mar 2019 |
| Search a 2D Matrix II | Medium | 94.15% | 84.21% | 9th Mar 2019 |
| Search a 2D Matrix | Medium | 79.63% | 33.33% | 9th Mar 2019 |
| Single Number | Easy | 92.41% | 73.63% | 10th Mar 2019 |
| K Closest Points to Origin | Medium | 72.51% | 66.38% | 11th Mar 2019 |
| Missing Number | Easy | 89.63% | 73.33% | 12th Mar 2019 |
| Move Zeroes | Easy | 93.69% | 86.28% | 12th Mar 2019 |
| Monotonic Array | Easy | 97.26% | 76.67% | 13th Mar 2019 |
| Word Pattern | Easy | 83.61% | 47.37% | 14th Mar 2019 |
| Binary Search Tree Iterator | Medium | 78.99% | 92.86% | 16th Mar 2019 |
| Add One Row to Tree | Medium | 94.00% | 100% | 17th Mar 2019 |
| Ransom Note | Easy | 93.08% | 90.48% | 19th Mar 2019 |
| Target Sum | Medium | 62.34% | 100% | 20th Mar 2019 |
| Valid Parentheses | Easy | 92.41% | 65.45% | 21st Mar 2019 |