| Longest Substring Without Repeating Characters | Medium | 38.5% | 83.8% |
| Group Anagrams | Medium | 72.2% | 80.1% |
| Reorganize String | Medium | 56.8% | 78.9% |
| Longest Palindromic Substring | Medium | 37.4% | 78.5% |
| Valid Parentheses | Easy | 43.7% | 74.8% |
| Longest Common Prefix | Easy | 47.1% | 73.8% |
| Generate Parentheses | Medium | 78.3% | 69.8% |
| Word Ladder | Hard | 44.9% | 69.2% |
| Letter Combinations of a Phone Number | Medium | 65.5% | 66.4% |
| Word Search | Medium | 46.9% | 65.2% |
| Valid Anagram | Easy | 67.8% | 64.5% |
| Analyze User Website Visit Pattern | Medium | 44.2% | 63.8% |
| Roman to Integer | Easy | 66.3% | 62.1% |
| Merge Strings Alternately | Easy | 82.1% | 61.9% |
| Word Break | Medium | 49.1% | 60.8% |
| Longest Repeating Character Replacement | Medium | 59.1% | 59.5% |
| Minimum Window Substring | Hard | 47.0% | 59.1% |
| Serialize and Deserialize Binary Tree | Hard | 60.4% | 57.5% |
| Zigzag Conversion | Medium | 53.6% | 56.6% |
| Regular Expression Matching | Hard | 30.5% | 56.3% |
| First Unique Character in a String | Easy | 65.1% | 54.7% |
| Word Search II | Hard | 38.1% | 54.4% |
| String Compression | Medium | 59.6% | 54.2% |
| Find the Index of the First Occurrence in a String | Easy | 46.3% | 53.6% |
| Concatenated Words | Hard | 49.7% | 53.6% |
| String to Integer (atoi) | Medium | 20.6% | 53.3% |
| Integer to Roman | Medium | 70.5% | 53.3% |
| Basic Calculator | Hard | 46.6% | 52.7% |
| Integer to English Words | Hard | 34.8% | 52.7% |
| Valid Palindrome | Easy | 52.8% | 52.3% |
| Reverse Words in a String | Medium | 55.6% | 51.7% |
| Word Break II | Hard | 55.1% | 51.7% |
| Edit Distance | Medium | 60.2% | 51.3% |
| Basic Calculator II | Medium | 46.7% | 50.7% |
| Evaluate Division | Medium | 64.0% | 50.3% |
| Palindrome Partitioning | Medium | 73.7% | 50.3% |
| Largest Number | Medium | 42.6% | 49.9% |
| Plates Between Candles | Medium | 47.3% | 49.9% |
| Longest Valid Parentheses | Hard | 38.1% | 49.6% |
| Decode String | Medium | 62.3% | 48.8% |
| Time Based Key-Value Store | Medium | 49.7% | 48.4% |
| Isomorphic Strings | Easy | 48.1% | 48.0% |
| Search Suggestions System | Medium | 65.1% | 48.0% |
| Add Binary | Easy | 57.7% | 47.6% |
| Rotate String | Easy | 65.1% | 47.2% |
| Find All Anagrams in a String | Medium | 53.3% | 46.7% |
| Fizz Buzz | Easy | 75.3% | 46.3% |
| Word Ladder II | Hard | 27.5% | 46.3% |
| Permutation in String | Medium | 48.5% | 45.8% |
| Reverse String | Easy | 80.6% | 44.9% |
| Simplify Path | Medium | 50.0% | 44.9% |
| Top K Frequent Words | Medium | 60.0% | 44.4% |
| Partition Labels | Medium | 81.8% | 43.9% |
| Sort Characters By Frequency | Medium | 75.1% | 43.3% |
| Length of Last Word | Easy | 58.3% | 42.8% |
| Valid Palindrome II | Easy | 44.0% | 42.2% |
| Remove K Digits | Medium | 36.4% | 41.6% |
| Is Subsequence | Easy | 48.9% | 41.0% |
| Open the Lock | Medium | 61.2% | 40.4% |
| Count and Say | Medium | 62.3% | 40.4% |
| Maximum Number of Vowels in a Substring of Given Length | Medium | 61.6% | 40.4% |
| Longest Palindromic Subsequence | Medium | 65.1% | 40.4% |
| Accounts Merge | Medium | 60.9% | 39.8% |
| Greatest Common Divisor of Strings | Easy | 53.4% | 39.8% |
| Palindromic Substrings | Medium | 72.6% | 39.8% |
| Decode Ways | Medium | 37.6% | 39.8% |
| Reverse Vowels of a String | Easy | 60.7% | 39.1% |
| Implement Trie (Prefix Tree) | Medium | 69.2% | 39.1% |
| Ransom Note | Easy | 65.7% | 37.7% |
| Longest Common Subsequence | Medium | 58.9% | 37.7% |
| Design In-Memory File System | Hard | 48.4% | 37.7% |
| Valid Parenthesis String | Medium | 39.8% | 36.9% |
| Wildcard Matching | Hard | 31.4% | 36.9% |
| Alien Dictionary | Hard | 37.1% | 36.9% |
| Design Add and Search Words Data Structure | Medium | 48.2% | 36.9% |
| Interleaving String | Medium | 43.5% | 36.1% |
| Process String with Special Operations I | Medium | 65.0% | 36.1% |
| Minimum Add to Make Parentheses Valid | Medium | 74.4% | 36.1% |
| Repeated Substring Pattern | Easy | 47.9% | 36.1% |
| Jewels and Stones | Easy | 89.5% | 35.3% |
| Count Binary Substrings | Easy | 70.3% | 35.3% |
| Text Justification | Hard | 50.5% | 35.3% |
| Apply Discount to Prices | Medium | 33.8% | 35.3% |
| Distinct Subsequences | Hard | 51.5% | 35.3% |
| Find Longest Self-Contained Substring | Hard | 58.8% | 35.3% |
| Substring with Concatenation of All Words | Hard | 34.0% | 34.4% |
| Compare Version Numbers | Medium | 46.1% | 34.4% |
| Remove Duplicate Letters | Medium | 52.8% | 34.4% |
| Reorder Data in Log Files | Medium | 56.9% | 34.4% |
| Remove All Adjacent Duplicates in String II | Medium | 60.9% | 33.5% |
| Reconstruct Itinerary | Hard | 44.3% | 33.5% |
| Next Greater Element III | Medium | 35.2% | 33.5% |
| Removing Stars From a String | Medium | 79.0% | 33.5% |
| Make String a Subsequence Using Cyclic Increments | Medium | 65.7% | 33.5% |
| Minimum Number of Pushes to Type Word II | Medium | 80.0% | 33.5% |
| Smallest Subsequence of Distinct Characters | Medium | 63.1% | 33.5% |
| Substring With Largest Variance | Hard | 46.0% | 32.5% |
| Longest Substring with At Least K Repeating Characters | Medium | 46.1% | 32.5% |
| Using a Robot to Print the Lexicographically Smallest String | Medium | 62.5% | 32.5% |
| Multiply Strings | Medium | 43.6% | 31.5% |
| Excel Sheet Column Title | Easy | 45.8% | 31.5% |
| Remove All Adjacent Duplicates In String | Easy | 72.8% | 31.5% |
| Add Strings | Easy | 52.1% | 31.5% |
| Different Ways to Add Parentheses | Medium | 73.1% | 31.5% |
| Sum of Beauty of All Substrings | Medium | 73.6% | 31.5% |
| Custom Sort String | Medium | 72.3% | 31.5% |
| Path Crossing | Easy | 62.6% | 31.5% |
| Palindrome Partitioning II | Hard | 36.6% | 30.4% |
| Remove Outermost Parentheses | Easy | 86.9% | 30.4% |
| Recover a Tree From Preorder Traversal | Hard | 83.2% | 30.4% |
| Flip String to Monotone Increasing | Medium | 61.9% | 30.4% |
| Longest Duplicate Substring | Hard | 31.1% | 30.4% |
| Move Pieces to Obtain a String | Medium | 56.7% | 30.4% |
| Count the Number of Special Characters I | Easy | 66.7% | 29.3% |
| Total Appeal of A String | Hard | 56.4% | 29.3% |
| Find the Difference | Easy | 60.1% | 29.3% |
| Shortest Palindrome | Hard | 41.9% | 29.3% |
| Shortest Common Supersequence | Hard | 61.8% | 29.3% |
| Number of Ways to Select Buildings | Medium | 50.9% | 29.3% |
| Construct Smallest Number From DI String | Medium | 85.6% | 29.3% |
| Optimal Partition of String | Medium | 78.4% | 28.0% |
| Reverse Words in a String III | Easy | 83.9% | 28.0% |
| Repeated DNA Sequences | Medium | 52.9% | 28.0% |
| Serialize and Deserialize BST | Medium | 59.4% | 28.0% |
| Find All Possible Recipes from Given Supplies | Medium | 56.8% | 28.0% |
| Unique Length-3 Palindromic Subsequences | Medium | 73.8% | 28.0% |
| Most Common Word | Easy | 45.0% | 28.0% |
| Reverse Words in a String II | Medium | 56.6% | 28.0% |
| Count Beautiful Substrings I | Medium | 61.0% | 28.0% |
| Orderly Queue | Hard | 66.7% | 28.0% |
| Encode and Decode TinyURL | Medium | 86.6% | 28.0% |
| Maximum Score Words Formed by Letters | Hard | 81.5% | 28.0% |
| Count Stepping Numbers in Range | Hard | 27.8% | 28.0% |
| Generate Binary Strings Without Adjacent Zeros | Medium | 88.2% | 28.0% |
| Largest Odd Number in String | Easy | 67.0% | 26.7% |
| Minimum Genetic Mutation | Medium | 56.4% | 26.7% |
| Design File System | Medium | 65.1% | 26.7% |
| Valid Number | Hard | 22.6% | 26.7% |
| Backspace String Compare | Easy | 49.8% | 26.7% |
| Substring Matching Pattern | Easy | 28.3% | 26.7% |
| Check If Digits Are Equal in String After Operations I | Easy | 82.5% | 26.7% |
| Longest Palindrome | Easy | 55.8% | 26.7% |
| Longest Repeating Substring | Medium | 63.4% | 26.7% |
| Design a Food Rating System | Medium | 52.9% | 26.7% |
| Minimum Length of String After Deleting Similar Ends | Medium | 56.1% | 26.7% |
| Check for Contradictions in Equations | Hard | 43.8% | 26.7% |
| Find the Divisibility Array of a String | Medium | 35.7% | 26.7% |
| Design a Text Editor | Hard | 50.1% | 26.7% |
| Find and Replace Pattern | Medium | 77.0% | 26.7% |
| Remove Palindromic Subsequences | Easy | 77.0% | 26.7% |
| Next Palindrome Using Same Digits | Hard | 54.2% | 26.7% |
| Number of Laser Beams in a Bank | Medium | 87.0% | 26.7% |
| Solve the Equation | Medium | 46.1% | 26.7% |
| Maximize Number of Subsequences in a String | Medium | 35.9% | 26.7% |
| Count Number of Texts | Medium | 49.9% | 26.7% |
| Restore IP Addresses | Medium | 55.3% | 25.3% |
| Minimum Operations to Sort a String | Medium | | 25.3% |
| Serialize and Deserialize N-ary Tree | Hard | 68.6% | 25.3% |
| Minimum Number of Moves to Make Palindrome | Hard | 52.6% | 25.3% |
| Design Search Autocomplete System | Hard | 49.7% | 25.3% |
| Construct String from Binary Tree | Medium | 70.6% | 25.3% |
| String Matching in an Array | Easy | 69.8% | 25.3% |
| Maximum Number of Non-Overlapping Substrings | Hard | 41.5% | 25.3% |
| Minimum Number of Keypresses | Medium | 71.4% | 25.3% |
| Length of the Longest Valid Substring | Hard | 38.2% | 25.3% |
| Minimum Number of Pushes to Type Word I | Easy | 66.9% | 25.3% |
| Kth Distinct String in an Array | Easy | 82.1% | 25.3% |
| Adding Spaces to a String | Medium | 71.8% | 25.3% |
| Replace Question Marks in String to Minimize Its Value | Medium | 29.0% | 25.3% |
| Split Array into Fibonacci Sequence | Medium | 40.2% | 25.3% |
| Valid Palindrome IV | Medium | 75.7% | 25.3% |
| Design SQL | Medium | 64.6% | 25.3% |
| Find Words That Can Be Formed by Characters | Easy | 71.5% | 25.3% |
| Append Characters to String to Make Subsequence | Medium | 73.0% | 25.3% |
| Decode the Slanted Ciphertext | Medium | 50.3% | 25.3% |
| Number of Steps to Reduce a Number in Binary Representation to One | Medium | 63.7% | 25.3% |
| Reverse String II | Easy | 53.4% | 23.7% |
| Find the Length of the Longest Common Prefix | Medium | 57.0% | 23.7% |
| Bulls and Cows | Medium | 52.2% | 23.7% |
| Word Pattern | Easy | 43.8% | 23.7% |
| Maximum Nesting Depth of the Parentheses | Easy | 84.8% | 23.7% |
| Remove All Occurrences of a Substring | Medium | 78.4% | 23.7% |
| Parsing A Boolean Expression | Hard | 69.8% | 23.7% |
| Number of Substrings Containing All Three Characters | Medium | 73.5% | 23.7% |
| Valid Word Abbreviation | Easy | 37.0% | 23.7% |
| Shortest Matching Substring | Hard | 23.8% | 23.7% |
| Remove Vowels from a String | Easy | 91.3% | 23.7% |
| Sum of Scores of Built Strings | Hard | 46.7% | 23.7% |
| Find the Substring With Maximum Cost | Medium | 57.8% | 23.7% |
| Construct Binary Tree from String | Medium | 58.7% | 23.7% |
| Complex Number Multiplication | Medium | 73.2% | 23.7% |
| Index Pairs of a String | Easy | 68.6% | 23.7% |
| Find K-Length Substrings With No Repeated Characters | Medium | 76.5% | 23.7% |
| Make Three Strings Equal | Easy | 44.6% | 23.7% |
| Count Beautiful Substrings II | Hard | 26.8% | 23.7% |
| Build Binary Expression Tree From Infix Expression | Hard | 62.8% | 23.7% |
| Rearrange Characters to Make Target String | Easy | 61.1% | 23.7% |
| Count the Number of Special Characters II | Medium | 43.3% | 23.7% |
| Sort Features by Popularity | Medium | 66.4% | 23.7% |
| Time Needed to Rearrange a Binary String | Medium | 52.6% | 23.7% |
| Numbers At Most N Given Digit Set | Hard | 44.6% | 23.7% |
| Base 7 | Easy | 53.8% | 22.0% |
| Excel Sheet Column Number | Easy | 67.3% | 22.0% |
| Binary Tree Paths | Easy | 68.2% | 22.0% |
| Guess the Word | Hard | 36.9% | 22.0% |
| Count Vowel Strings in Ranges | Medium | 67.8% | 22.0% |
| Encode and Decode Strings | Medium | 51.2% | 22.0% |
| Remove Sub-Folders from the Filesystem | Medium | 78.6% | 22.0% |
| Minimum Flips to Make Binary String Coherent | Medium | | 22.0% |
| Find Common Characters | Easy | 74.7% | 20.2% |
| Longest Happy Prefix | Hard | 51.9% | 20.2% |
| Longest Happy String | Medium | 65.5% | 20.2% |
| Minimum Remove to Make Valid Parentheses | Medium | 71.3% | 20.2% |
| Minimum Number of Swaps to Make the String Balanced | Medium | 78.1% | 20.2% |
| Clear Digits | Easy | 82.7% | 20.2% |
| Lexicographically Minimum String After Removing Stars | Medium | 51.0% | 20.2% |
| Count the Number of Substrings With Dominant Ones | Medium | 42.1% | 20.2% |
| Scramble String | Hard | 43.9% | 20.2% |
| Basic Calculator III | Hard | 53.2% | 20.2% |
| Maximum Score After Binary Swaps | Medium | 35.0% | 20.2% |
| Reverse String Prefix | Easy | 89.4% | 20.2% |
| Minimum Cost to Partition a Binary String | Hard | | 20.2% |
| Maximum Total Value of Covered Indices | Medium | | 20.2% |
| Jump Game VII | Medium | 26.4% | 18.1% |
| Robot Return to Origin | Easy | 76.5% | 18.1% |
| Longest Balanced Substring I | Medium | 69.7% | 18.1% |
| Number of Atoms | Hard | 65.1% | 18.1% |
| Longest Substring with At Most K Distinct Characters | Medium | 49.9% | 18.1% |
| Find the Closest Palindrome | Hard | 31.8% | 18.1% |
| Check if a Parentheses String Can Be Valid | Medium | 45.1% | 18.1% |
| Score of a String | Easy | 91.4% | 18.1% |
| Word Subsets | Medium | 55.9% | 18.1% |
| String Compression III | Medium | 67.0% | 18.1% |
| Total Characters in String After Transformations I | Medium | 45.7% | 18.1% |
| Lexicographically Smallest Equivalent String | Medium | 81.1% | 18.1% |
| Vowel Spellchecker | Medium | 61.4% | 18.1% |
| Minimum Time Difference | Medium | 62.6% | 18.1% |
| Robot Bounded In Circle | Medium | 56.5% | 18.1% |
| Separate Black and White Balls | Medium | 64.0% | 18.1% |
| Minimum Cost to Convert String II | Hard | 59.7% | 18.1% |
| Lexicographically Smallest String After Applying Operations | Medium | 79.4% | 18.1% |
| Special Binary String | Hard | 79.3% | 18.1% |
| Lexicographically Smallest Permutation Greater Than Target | Medium | 26.5% | 18.1% |
| Process String with Special Operations II | Hard | 16.9% | 15.8% |
| Minimum Cost to Convert String I | Medium | 63.2% | 15.8% |
| Find Resultant Array After Removing Anagrams | Easy | 69.9% | 15.8% |
| Find Kth Bit in Nth Binary String | Medium | 70.2% | 15.8% |
| Remove Invalid Parentheses | Hard | 49.8% | 15.8% |
| The k-th Lexicographical String of All Happy Strings of Length n | Medium | 85.3% | 15.8% |
| Final Value of Variable After Performing Operations | Easy | 90.6% | 15.8% |
| Defanging an IP Address | Easy | 90.0% | 15.8% |
| Invalid Transactions | Medium | 32.1% | 15.8% |
| Minimum Insertion Steps to Make a String Palindrome | Hard | 73.7% | 15.8% |
| Minimum Number of Operations to Move All Balls to Each Box | Medium | 90.1% | 15.8% |
| Step-By-Step Directions From a Binary Tree Node to Another | Medium | 56.4% | 15.8% |
| Delete Columns to Make Sorted | Easy | 78.1% | 15.8% |
| Sum of Prefix Scores of Strings | Hard | 60.8% | 15.8% |
| Maximum Difference Between Even and Odd Frequency I | Easy | 60.7% | 15.8% |
| Minimum Penalty for a Shop | Medium | 71.2% | 15.8% |
| Shortest Word Distance | Easy | 66.2% | 15.8% |
| Buddy Strings | Easy | 33.9% | 13.3% |
| Minimum Index Sum of Two Lists | Easy | 59.5% | 13.3% |
| Check If a String Contains All Binary Codes of Size K | Medium | 61.5% | 13.3% |
| Longest Balanced Substring II | Medium | 42.0% | 13.3% |
| Partitioning Into Minimum Number Of Deci-Binary Numbers | Medium | 88.8% | 13.3% |
| Minimum Deletions to Make String Balanced | Medium | 68.2% | 13.3% |
| Check if the Sentence Is Pangram | Easy | 84.1% | 13.3% |
| Fraction to Recurring Decimal | Medium | 30.6% | 13.3% |
| Dota2 Senate | Medium | 49.6% | 13.3% |
| Number of Matching Subsequences | Medium | 50.6% | 13.3% |
| Maximum Score After Splitting a String | Easy | 65.1% | 13.3% |
| Extra Characters in a String | Medium | 57.3% | 13.3% |
| Valid Word | Easy | 50.9% | 13.3% |
| Find the Longest Substring Containing Vowels in Even Counts | Medium | 75.7% | 13.3% |
| Split a String in Balanced Strings | Easy | 87.3% | 13.3% |
| Rearrange String k Distance Apart | Hard | 39.9% | 13.3% |
| Shifting Letters II | Medium | 53.5% | 13.3% |
| Find Duplicate File in System | Medium | 67.6% | 13.3% |
| Find the Original Typed String I | Easy | 72.1% | 13.3% |
| Find the Original Typed String II | Hard | 45.6% | 13.3% |
| Verifying an Alien Dictionary | Easy | 55.9% | 13.3% |
| Reverse Prefix of Word | Easy | 86.5% | 13.3% |
| Strong Password Checker | Hard | 15.5% | 13.3% |
| Take K of Each Character From Left and Right | Medium | 51.5% | 13.3% |
| Count Vowel Substrings of a String | Easy | 72.9% | 13.3% |
| Maximum Number of Words Found in Sentences | Easy | 86.7% | 13.3% |
| Pyramid Transition Matrix | Medium | 60.6% | 13.3% |
| Maximum Number of Balloons | Easy | 60.0% | 10.4% |
| Largest Palindromic Number | Medium | 37.0% | 10.4% |
| Web Crawler | Medium | 68.8% | 10.4% |
| Sort the People | Easy | 84.8% | 10.4% |
| Find Unique Binary String | Medium | 79.4% | 10.4% |
| Check if Binary String Has at Most One Segment of Ones | Easy | 39.4% | 10.4% |
| Smallest String Starting From Leaf | Medium | 61.1% | 10.4% |
| Shortest Distance to a Character | Easy | 72.7% | 10.4% |
| Palindrome Pairs | Hard | 37.0% | 10.4% |
| Delete Operation for Two Strings | Medium | 65.3% | 10.4% |
| Strange Printer | Hard | 60.9% | 10.4% |
| Design Underground System | Medium | 74.4% | 10.4% |
| Check if One String Swap Can Make Strings Equal | Easy | 49.5% | 10.4% |
| Decode the Message | Easy | 85.8% | 10.4% |
| Lexicographically Smallest Beautiful String | Hard | 38.1% | 10.4% |
| Minimum String Length After Removing Substrings | Easy | 77.1% | 10.4% |
| Design Log Storage System | Medium | 59.3% | 10.4% |
| Maximum Number of Removable Characters | Medium | 46.9% | 10.4% |
| Find the Lexicographically Largest String From the Box I | Medium | 41.0% | 10.4% |
| Count Palindromic Subsequences | Hard | 41.0% | 10.4% |
| Delete Characters to Make Fancy String | Easy | 74.1% | 10.4% |
| Design Excel Sum Formula | Hard | 39.9% | 10.4% |
| Minimum Deletions to Make Character Frequencies Unique | Medium | 61.4% | 10.4% |
| Last Substring in Lexicographical Order | Hard | 35.0% | 10.4% |
| Substrings of Size Three with Distinct Characters | Easy | 76.6% | 10.4% |
| Number of Good Ways to Split a String | Medium | 68.4% | 10.4% |
| DI String Match | Easy | 80.9% | 10.4% |
| Expression Add Operators | Hard | 42.8% | 10.4% |
| Number of Segments in a String | Easy | 37.0% | 10.4% |
| Minimum Operations to Equalize Binary String | Hard | 45.6% | 10.4% |
| Ones and Zeroes | Medium | 53.1% | 10.4% |
| Delete Columns to Make Sorted II | Medium | 49.7% | 10.4% |
| Longest Common Suffix Queries | Hard | 35.9% | 7.2% |
| Satisfiability of Equality Equations | Medium | 51.6% | 7.2% |
| Mini Parser | Medium | 42.0% | 7.2% |
| Maximum Product of Word Lengths | Medium | 61.1% | 7.2% |
| Shortest Distance to Target String in a Circular Array | Easy | 50.6% | 7.2% |
| Validate IP Address | Medium | 28.2% | 7.2% |
| Keyboard Row | Easy | 73.6% | 7.2% |
| Number of Days Between Two Dates | Easy | 52.4% | 7.2% |
| Reverse Substrings Between Each Pair of Parentheses | Medium | 71.9% | 7.2% |
| Minimum Number of Steps to Make Two Strings Anagram | Medium | 82.5% | 7.2% |
| Destination City | Easy | 79.5% | 7.2% |
| Make The String Great | Easy | 68.4% | 7.2% |
| Determine if Two Strings Are Close | Medium | 54.2% | 7.2% |
| Check If Two String Arrays are Equivalent | Easy | 86.1% | 7.2% |
| Find Words Containing Character | Easy | 90.4% | 7.2% |
| HTML Entity Parser | Medium | 50.3% | 7.2% |
| Check if Two Chessboard Squares Have the Same Color | Easy | 72.2% | 7.2% |
| Uncommon Words from Two Sentences | Easy | 75.6% | 7.2% |
| Split a String Into the Max Number of Unique Substrings | Medium | 68.6% | 7.2% |
| Construct K Palindrome Strings | Medium | 68.6% | 7.2% |
| Convert a Number to Hexadecimal | Easy | 53.3% | 7.2% |
| Count of Substrings Containing Every Vowel and K Consonants II | Medium | 40.6% | 7.2% |
| Maximum Difference Between Even and Odd Frequency II | Hard | 48.7% | 7.2% |
| Sentence Similarity II | Medium | 51.1% | 7.2% |
| Minimum Recolors to Get K Consecutive Black Blocks | Easy | 68.6% | 7.2% |
| Count Unique Characters of All Substrings of a Given String | Hard | 53.5% | 7.2% |
| Maximum Number of Words You Can Type | Easy | 82.9% | 7.2% |
| Longest Binary Subsequence Less Than or Equal to K | Medium | 52.8% | 7.2% |
| Push Dominoes | Medium | 63.0% | 7.2% |
| Minimum Time to Make Rope Colorful | Medium | 65.2% | 7.2% |
| Stream of Characters | Hard | 52.0% | 7.2% |
| Check if All Characters Have Equal Number of Occurrences | Easy | 79.4% | 7.2% |
| Maximum Score From Removing Substrings | Medium | 66.6% | 7.2% |
| Find Most Frequent Vowel and Consonant | Easy | 89.3% | 7.2% |
| Longest String Chain | Medium | 62.8% | 7.2% |
| Maximum Number of Operations to Move Ones to the End | Medium | 67.1% | 7.2% |
| Longest Path With Different Adjacent Characters | Hard | 54.0% | 7.2% |
| Longest Absolute File Path | Medium | 49.2% | 7.2% |
| Longest Nice Substring | Easy | 63.8% | 7.2% |
| Repeated String Match | Medium | 38.4% | 7.2% |
| Check Balanced String | Easy | 82.5% | 7.2% |
| Rank Teams by Votes | Medium | 60.0% | 7.2% |
| Distinct Subsequences II | Hard | 44.0% | 7.2% |
| Maximum Number of Occurrences of a Substring | Medium | 54.3% | 7.2% |
| Unique Email Addresses | Easy | 67.8% | 7.2% |
| Minimum Number of Flips to Make the Binary String Alternating | Medium | 41.1% | 7.2% |
| Check if Strings Can be Made Equal With Operations II | Medium | 56.1% | 5.0% |
| K-Similar Strings | Hard | 40.6% | 5.0% |
| Minimum ASCII Delete Sum for Two Strings | Medium | 70.9% | 5.0% |
| Letter Case Permutation | Medium | 75.7% | 5.0% |
| Maximum Repeating Substring | Easy | 41.1% | 5.0% |
| Count Items Matching a Rule | Easy | 85.3% | 5.0% |
| Split Message Based on Limit | Hard | 42.0% | 5.0% |
| Maximum Odd Binary Number | Easy | 82.9% | 5.0% |
| Sentence Similarity III | Medium | 48.5% | 5.0% |
| Remove Digit From Number to Maximize Result | Easy | 48.2% | 5.0% |
| Find Longest Special Substring That Occurs Thrice I | Medium | 61.9% | 5.0% |
| Count Different Palindromic Subsequences | Hard | 47.5% | 5.0% |
| Minimum Insertions to Balance a Parentheses String | Medium | 53.5% | 5.0% |
| Lexicographically Smallest String After Substring Operation | Medium | 34.5% | 5.0% |
| Number of Changing Keys | Easy | 80.5% | 5.0% |
| Word Pattern II | Medium | 48.8% | 5.0% |
| Length of the Longest Alphabetical Continuous Substring | Medium | 60.3% | 5.0% |
| Check If a Word Occurs As a Prefix of Any Word in a Sentence | Easy | 68.8% | 5.0% |
| Minimum Length of String After Operations | Medium | 75.0% | 5.0% |
| Select K Disjoint Special Substrings | Medium | 19.1% | 5.0% |
| Increasing Decreasing String | Easy | 77.2% | 5.0% |
| String Without AAA or BBB | Medium | 45.0% | 5.0% |
| Two-Letter Card Game | Medium | 12.2% | 5.0% |
| Zuma Game | Hard | 30.2% | 5.0% |
| Smallest Palindromic Rearrangement I | Medium | 63.5% | 5.0% |
| Minimum Number of Swaps to Make the Binary String Alternating | Medium | 43.9% | 5.0% |
| Magical String | Medium | 54.5% | 5.0% |
| Minimum Unique Word Abbreviation | Hard | 40.5% | 5.0% |
| Truncate Sentence | Easy | 86.7% | 5.0% |
| Longest Substring with At Most Two Distinct Characters | Medium | 57.0% | 5.0% |
| Longest Subsequence Repeated k Times | Hard | 71.3% | 5.0% |
| Longest Common Prefix Between Adjacent Strings After Removals | Medium | 32.3% | 5.0% |
| Find Special Substring of Length K | Easy | 35.1% | 5.0% |
| Delete Duplicate Folders in System | Hard | 77.7% | 5.0% |
| Find the Largest Palindrome Divisible by K | Hard | 16.9% | 5.0% |
| Find Valid Pair of Adjacent Digits in String | Easy | 60.6% | 5.0% |
| Number of Ways to Form a Target String Given a Dictionary | Hard | 56.6% | 5.0% |
| Minimum Changes To Make Alternating Binary String | Easy | 63.8% | 5.0% |
| Maximum Value after Insertion | Medium | 39.2% | 5.0% |
| Minimum Number of Chairs in a Waiting Room | Easy | 79.2% | 5.0% |
| String Compression II | Hard | 52.2% | 5.0% |
| Count Substrings That Can Be Rearranged to Contain a String I | Medium | 42.7% | 5.0% |
| Sorting the Sentence | Easy | 84.1% | 5.0% |
| Decoded String at Index | Medium | 37.3% | 5.0% |
| Minimum Suffix Flips | Medium | 73.9% | 5.0% |
| Consecutive Characters | Easy | 60.3% | 5.0% |
| Encrypt and Decrypt Strings | Hard | 38.1% | 5.0% |
| Count Collisions on a Road | Medium | 58.1% | 5.0% |
| Longest Word in Dictionary | Medium | 54.5% | 5.0% |
| Similar String Groups | Hard | 56.1% | 5.0% |
| Valid Palindrome III | Hard | 49.1% | 5.0% |
| Delete Columns to Make Sorted III | Hard | 72.7% | 5.0% |
| Number of Substrings With Only 1s | Medium | 57.4% | 5.0% |
| Implement Trie II (Prefix Tree) | Medium | 63.3% | 5.0% |
| Design Spreadsheet | Medium | 74.3% | 5.0% |
| Vowels Game in a String | Medium | 77.1% | 5.0% |
| Unique Morse Code Words | Easy | 83.6% | 5.0% |
| Longest Palindrome by Concatenating Two Letter Words | Medium | 53.5% | 5.0% |
| Sort Vowels in a String | Medium | 83.4% | 5.0% |
| Split Strings by Separator | Easy | 76.0% | 5.0% |
| Word Abbreviation | Hard | 62.7% | 5.0% |
| Lexicographically Smallest Generated String | Hard | 31.5% | 5.0% |
| Reverse Only Letters | Easy | 68.2% | 5.0% |
| Maximize the Confusion of an Exam | Medium | 69.7% | 5.0% |
| Largest Color Value in a Directed Graph | Hard | 57.3% | 5.0% |
| Words Within Two Edits of Dictionary | Medium | 61.8% | 5.0% |
| Sum of Digits of String After Convert | Easy | 74.8% | 5.0% |
| Student Attendance Record I | Easy | 50.0% | 5.0% |
| Score of Parentheses | Medium | 63.6% | 5.0% |
| Find Mirror Score of a String | Medium | 35.4% | 5.0% |
| Number of Unique Good Subsequences | Hard | 52.6% | 5.0% |
