| Alien Dictionary | Hard | 37.1% | 93.5% |
| Find the Closest Palindrome | Hard | 31.8% | 80.5% |
| Word Search | Medium | 46.9% | 76.9% |
| Word Search II | Hard | 38.1% | 73.8% |
| Evaluate Division | Medium | 64.0% | 70.2% |
| Text Justification | Hard | 50.5% | 69.4% |
| Basic Calculator | Hard | 46.6% | 62.7% |
| Letter Combinations of a Phone Number | Medium | 65.5% | 62.7% |
| Group Anagrams | Medium | 72.2% | 62.7% |
| Top K Frequent Words | Medium | 60.0% | 62.7% |
| Design In-Memory File System | Hard | 48.4% | 61.5% |
| Word Break | Medium | 49.1% | 61.5% |
| Serialize and Deserialize Binary Tree | Hard | 60.4% | 58.9% |
| Split Message Based on Limit | Hard | 42.0% | 58.9% |
| Minimum Window Substring | Hard | 47.0% | 57.5% |
| Valid Anagram | Easy | 67.8% | 57.5% |
| Roman to Integer | Easy | 66.3% | 56.0% |
| Time Based Key-Value Store | Medium | 49.7% | 54.4% |
| Decode Ways | Medium | 37.6% | 54.4% |
| Replace Words | Medium | 68.6% | 54.4% |
| Maximize Amount After Two Days of Conversions | Medium | 61.2% | 52.6% |
| String to Integer (atoi) | Medium | 20.6% | 52.6% |
| Regular Expression Matching | Hard | 30.5% | 52.6% |
| Valid Palindrome | Easy | 52.8% | 52.6% |
| Excel Sheet Column Number | Easy | 67.3% | 52.6% |
| Merge Strings Alternately | Easy | 82.1% | 52.6% |
| Check if a String Is an Acronym of Words | Easy | 82.9% | 52.6% |
| Encode and Decode TinyURL | Medium | 86.6% | 52.6% |
| Generate Parentheses | Medium | 78.3% | 50.6% |
| Word Break II | Hard | 55.1% | 50.6% |
| Longest Palindromic Subsequence | Medium | 65.1% | 50.6% |
| Palindrome Permutation | Easy | 68.6% | 50.6% |
| Check for Contradictions in Equations | Hard | 43.8% | 50.6% |
| One Edit Distance | Medium | 34.6% | 50.6% |
| Word Pattern | Easy | 43.8% | 50.6% |
| Word Pattern II | Medium | 48.8% | 50.6% |
| Check If String Is a Prefix of Array | Easy | 52.7% | 50.6% |
| Number of Strings That Appear as Substrings in Word | Easy | 82.4% | 50.6% |
| Calculate Digit Sum of a String | Easy | 67.7% | 50.6% |
| Reverse Words in a String II | Medium | 56.6% | 50.6% |
| Match Alphanumerical Pattern in Matrix I | Medium | 64.2% | 50.6% |
| Implement Trie (Prefix Tree) | Medium | 69.2% | 50.6% |
| Construct K Palindrome Strings | Medium | 68.6% | 50.6% |
| Group Shifted Strings | Medium | 67.7% | 50.6% |
| Open the Lock | Medium | 61.2% | 48.5% |
| Word Ladder | Hard | 44.9% | 46.1% |
| Find All Possible Recipes from Given Supplies | Medium | 56.8% | 43.4% |
| Longest Path With Different Adjacent Characters | Hard | 54.0% | 43.4% |
| Basic Calculator II | Medium | 46.7% | 40.3% |
| Number of Matching Subsequences | Medium | 50.6% | 40.3% |
| Verifying an Alien Dictionary | Easy | 55.9% | 40.3% |
| Longest Palindromic Substring | Medium | 37.4% | 36.6% |
| Reconstruct Itinerary | Hard | 44.3% | 36.6% |
| Design File System | Medium | 65.1% | 32.2% |
| Smallest String With Swaps | Medium | 60.4% | 32.2% |
| Word Ladder II | Hard | 27.5% | 32.2% |
| Shortest Palindrome | Hard | 41.9% | 32.2% |
| Longest Valid Parentheses | Hard | 38.1% | 32.2% |
| Find the Length of the Longest Common Prefix | Medium | 57.0% | 32.2% |
| Longest Common Prefix | Easy | 47.1% | 32.2% |
| Valid Parentheses | Easy | 43.7% | 26.6% |
| Longest Repeating Character Replacement | Medium | 59.1% | 26.6% |
| Remove Comments | Medium | 40.0% | 26.6% |
| Analyze User Website Visit Pattern | Medium | 44.2% | 26.6% |
| Add Strings | Easy | 52.1% | 26.6% |
| Simplify Path | Medium | 50.0% | 26.6% |
| Design Search Autocomplete System | Hard | 49.7% | 26.6% |
| Design a Text Editor | Hard | 50.1% | 26.6% |
| Number of Wonderful Substrings | Medium | 66.6% | 19.2% |
| Count Palindromic Subsequences | Hard | 41.0% | 19.2% |
| Count Different Palindromic Subsequences | Hard | 47.5% | 19.2% |
| Count Prefix and Suffix Pairs II | Hard | 28.1% | 19.2% |
| Number of Distinct Substrings in a String | Medium | 64.8% | 19.2% |
| Valid Palindrome II | Easy | 44.0% | 19.2% |
| Maximum Manhattan Distance After K Changes | Medium | 54.2% | 19.2% |
| Ones and Zeroes | Medium | 53.1% | 19.2% |
| Repeated String Match | Medium | 38.4% | 19.2% |
| Accounts Merge | Medium | 60.9% | 19.2% |
| Longest Substring Without Repeating Characters | Medium | 38.5% | 19.2% |
| Freedom Trail | Hard | 59.2% | 19.2% |
| Count Binary Substrings | Easy | 70.3% | 19.2% |
| Find All Anagrams in a String | Medium | 53.3% | 19.2% |
| Fizz Buzz | Easy | 75.3% | 19.2% |
| Number of Ways to Form a Target String Given a Dictionary | Hard | 56.6% | 19.2% |
| Search Suggestions System | Medium | 65.1% | 19.2% |
| Remove Sub-Folders from the Filesystem | Medium | 78.6% | 19.2% |
| Goat Latin | Easy | 69.9% | 19.2% |
