| 5 | Longest Palindromic Substring | String | Medium |
| 11 | Container With Most Water | Array | Medium |
| 31 | Next Permutation | Array | Medium |
| 33 | Search In Rotated Sorted Array | Array | Medium |
| 36 | Valid Sudoku | Array | Medium |
| 38 | Count And Say | String | Medium |
| 61 | Rotate List | Linked List | Medium |
| 73 | Set Matrix Zeroes | Array | Medium |
| 74 | Search A 2D Matrix | Array | Medium |
| 99 | Recover Binary Search Tree | Tree | Medium |
| 120 | Triangle | Array | Medium |
| 131 | Palindrome Partitioning | String | Medium |
| 146 | Lru Cache | Design | Medium |
| 153 | Find Minimum In Rotated Sorted Array | Array | Medium |
| 165 | Compare Version Numbers | String | Medium |
| 166 | Fraction To Recurring Decimal | Math | Medium |
| 173 | Binary Search Tree Iterator | Tree | Medium |
| 176 | Second Highest Salary | Database | Medium |
| 177 | Nth Highest Salary | Database | Medium |
| 179 | Largest Number | Array | Medium |
| 209 | Minimum Size Subarray Sum | Array | Medium |
| 223 | Rectangle Area | Math | Medium |
| 241 | Different Ways To Add Parentheses | Math | Medium |
| 284 | Peeking Iterator | Array | Medium |
| 300 | Longest Increasing Subsequence | Array | Medium |
| 310 | Minimum Height Trees | Depth-First Search | Medium |
| 318 | Maximum Product Of Word Lengths | Array | Medium |
| 324 | Wiggle Sort Ii | Array | Medium |
| 331 | Verify Preorder Serialization Of A Binary Tree | Tree | Medium |
| 337 | House Robber Iii | Tree | Medium |
| 355 | Design Twitter | Design | Medium |
| 368 | Largest Divisible Subset | Array | Medium |
| 372 | Super Pow | Math | Medium |
| 376 | Wiggle Subsequence | Array | Medium |
| 384 | Shuffle An Array | Array | Medium |
| 386 | Lexicographical Numbers | Depth-First Search | Medium |
| 394 | Decode String | String | Medium |
| 396 | Rotate Function | Array | Medium |
| 397 | Integer Replacement | Dynamic Programming | Medium |
| 413 | Arithmetic Slices | Array | Medium |
| 416 | Partition Equal Subset Sum | Array | Medium |
| 417 | Pacific Atlantic Water Flow | Depth-First Search | Medium |
| 424 | Longest Repeating Character Replacement | String | Medium |
| 433 | Minimum Genetic Mutation | Breadth-First Search | Medium |
| 449 | Serialize And Deserialize Bst | Tree | Medium |
| 453 | Minimum Moves To Equal Array Elements | Array | Medium |
| 454 | 4Sum Ii | Array | Medium |
| 462 | Minimum Moves To Equal Array Elements Ii | Array | Medium |
| 474 | Ones And Zeroes | Array | Medium |
| 494 | Target Sum | Array | Medium |
| 498 | Diagonal Traverse | Array | Medium |
| 524 | Longest Word In Dictionary Through Deleting | Array | Medium |
| 526 | Beautiful Arrangement | Array | Medium |
| 539 | Minimum Time Difference | Array | Medium |
| 554 | Brick Wall | Array | Medium |
| 565 | Array Nesting | Depth-First Search | Medium |
| 567 | Permutation In String | String | Medium |
| 592 | Fraction Addition And Subtraction | Math | Medium |
| 611 | Valid Triangle Number | Array | Medium |
| 638 | Shopping Offers | Array | Medium |
| 669 | Trim A Binary Search Tree | Tree | Medium |
| 670 | Maximum Swap | Math | Medium |
| 676 | Implement Magic Dictionary | Depth-First Search | Medium |
| 677 | Map Sum Pairs | String | Medium |
| 678 | Valid Parenthesis String | String | Medium |
| 684 | Redundant Connection | Depth-First Search | Medium |
| 698 | Partition To K Equal Sum Subsets | Array | Medium |
| 713 | Subarray Product Less Than K | Array | Medium |
| 729 | My Calendar I | Array | Medium |
| 731 | My Calendar Ii | Array | Medium |
| 739 | Daily Temperatures | Array | Medium |
| 755 | Reach A Number | Math | Medium |
| 766 | Flatten A Multilevel Doubly Linked List | Depth-First Search | Medium |
| 768 | Partition Labels | String | Medium |
| 769 | Largest Plus Sign | Array | Medium |
| 780 | Max Chunks To Make Sorted | Array | Medium |
| 797 | Rabbits In Forest | Array | Medium |
| 803 | Cheapest Flights Within K Stops | Depth-First Search | Medium |
| 806 | Domino And Tromino Tiling | Dynamic Programming | Medium |
| 808 | Number Of Matching Subsequences | Array | Medium |
| 826 | Soup Servings | Math | Medium |
| 831 | Largest Sum Of Averages | Array | Medium |
| 835 | Linked List Components | Array | Medium |
| 838 | Design Linked List | Design | Medium |
| 852 | Friends Of Appropriate Ages | Array | Medium |
| 859 | Design Circular Deque | Array | Medium |
| 860 | Design Circular Queue | Array | Medium |
| 875 | Longest Mountain In Array | Array | Medium |
| 876 | Hand Of Straights | Array | Medium |
| 878 | Shifting Letters | Array | Medium |
| 893 | All Nodes Distance K In Binary Tree | Tree | Medium |
| 900 | Reordered Power Of 2 | Math | Medium |
| 901 | Advantage Shuffle | Array | Medium |
| 905 | Length Of Longest Fibonacci Subsequence | Array | Medium |
| 907 | Koko Eating Bananas | Array | Medium |
| 912 | Random Pick With Weight | Array | Medium |
| 925 | Construct Binary Tree From Preorder And Postorder Traversal | Tree | Medium |
| 934 | Bitwise Ors Of Subarrays | Array | Medium |
| 936 | Rle Iterator | Array | Medium |
| 937 | Online Stock Span | Design | Medium |
| 940 | Fruit Into Baskets | Array | Medium |
| 945 | Snakes And Ladders | Array | Medium |
| 946 | Smallest Range Ii | Array | Medium |
| 947 | Online Election | Array | Medium |
| 952 | Word Subsets | Array | Medium |
| 955 | Complete Binary Tree Inserter | Tree | Medium |
| 959 | 3Sum With Multiplicity | Array | Medium |
| 984 | Most Stones Removed With Same Row Or Column | Depth-First Search | Medium |
| 988 | Flip Equivalent Binary Trees | Tree | Medium |
| 991 | Array Of Doubled Pairs | Array | Medium |
| 1020 | Longest Turbulent Subarray | Array | Medium |
| 1021 | Distribute Coins In Binary Tree | Tree | Medium |
| 1023 | Time Based Key Value Store | String | Medium |
| 1025 | Minimum Cost For Tickets | Array | Medium |
| 1028 | Interval List Intersections | Array | Medium |
| 1032 | Satisfiability Of Equality Equations | Array | Medium |
| 1040 | Maximum Binary Tree Ii | Tree | Medium |
| 1048 | Clumsy Factorial | Math | Medium |
| 1055 | Pairs Of Songs With Total Durations Divisible By 60 | Array | Medium |
| 1058 | Lexicographically Smallest Equivalent String | String | Medium |
| 1063 | Best Sightseeing Pair | Array | Medium |
| 1072 | Next Greater Node In Linked List | Array | Medium |
| 1095 | Two City Scheduling | Array | Medium |
| 1096 | Maximum Sum Of Two Non Overlapping Subarrays | Array | Medium |
| 1111 | Minimum Score Triangulation Of Polygon | Array | Medium |
| 1140 | Distant Barcodes | Array | Medium |
| 1147 | Flip Columns For Maximum Number Of Equal Rows | Array | Medium |
| 1159 | Smallest Subsequence Of Distinct Characters | String | Medium |
| 1160 | Letter Tile Possibilities | String | Medium |
| 1169 | Largest Values From Labels | Array | Medium |
| 1218 | Lowest Common Ancestor Of Deepest Leaves | Tree | Medium |
| 1219 | Longest Well Performing Interval | Array | Medium |
| 1248 | Binary Tree Coloring Game | Tree | Medium |
| 1261 | Swap For Longest Repeated Character Substring | String | Medium |
| 1263 | Number Of Dice Rolls With Target Sum | Dynamic Programming | Medium |
| 1281 | Can Make Palindrome From Substring | Array | Medium |
| 1292 | Immediate Food Delivery Ii | Database | Medium |
| 1295 | Minimum Garden Perimeter To Collect Enough Apples | Math | Medium |
| 1304 | Longest Happy String | String | Medium |
| 1311 | Largest Magic Square | Array | Medium |
| 1331 | Path With Maximum Gold | Array | Medium |
| 1342 | Queens That Can Attack The King | Array | Medium |
| 1350 | Remove Sub Folders From The Filesystem | Depth-First Search | Medium |
| 1351 | Replace The Substring For Balanced String | String | Medium |
| 1364 | Tuple With Same Product | Array | Medium |
| 1387 | Find Elements In A Contaminated Binary Tree | Tree | Medium |
| 1396 | Count Servers That Communicate | Depth-First Search | Medium |
| 1402 | Count Square Submatrices With All Ones | Array | Medium |
| 1413 | Maximum Side Length Of A Square With Sum Less Than Or Equal To Threshold | Array | Medium |
| 1422 | Divide Array In Sets Of K Consecutive Numbers | Array | Medium |
| 1423 | Maximum Number Of Occurrences Of A Substring | String | Medium |
| 1436 | Get Watched Videos By Your Friends | Array | Medium |
| 1445 | Number Of Sub Arrays Of Size K And Average Greater Than Or Equal To Threshold | Array | Medium |
| 1450 | Delete Leaves With A Given Value | Tree | Medium |
| 1456 | Find The City With The Smallest Number Of Neighbors At A Threshold Distance | Dynamic Programming | Medium |
| 1460 | Number Of Substrings Containing All Three Characters | String | Medium |
| 1477 | Product Of The Last K Numbers | Array | Medium |
| 1478 | Maximum Number Of Events That Can Be Attended | Array | Medium |
| 1483 | Rank Teams By Votes | Array | Medium |
| 1497 | Design A Stack With Increment Operation | Array | Medium |
| 1502 | Construct K Palindrome Strings | String | Medium |
| 1516 | The K Th Lexicographical String Of All Happy Strings Of Length N | String | Medium |
| 1529 | Max Difference You Can Get From Changing An Integer | Math | Medium |
| 1538 | Maximum Points You Can Obtain From Cards | Array | Medium |
| 1558 | Course Schedule Iv | Depth-First Search | Medium |
| 1561 | Rearrange Words In A Sentence | String | Medium |
| 1562 | People Whose List Of Favorite Companies Is Not A Subset Of Another List | Array | Medium |
| 1573 | Find Two Non Overlapping Sub Arrays Each With Target Sum | Array | Medium |
| 1585 | The Kth Factor Of N | Math | Medium |
| 1586 | Longest Subarray Of 1S After Deleting One Element | Array | Medium |
| 1621 | Number Of Subsequences That Satisfy The Given Sum Condition | Array | Medium |
| 1628 | Count Submatrices With All Ones | Array | Medium |
| 1631 | Number Of Sub Arrays With Odd Sum | Array | Medium |
| 1649 | Maximum Number Of Non Overlapping Subarrays With Sum Equals Target | Array | Medium |
| 1653 | Number Of Good Leaf Nodes Pairs | Tree | Medium |
| 1667 | Find Kth Bit In Nth Binary String | String | Medium |
| 1678 | Number Of Ways To Split A String | Math | Medium |
| 1679 | Shortest Subarray To Be Removed To Make Array Sorted | Array | Medium |
| 1694 | Make Sum Divisible By P | Array | Medium |
| 1695 | Maximum Sum Obtained Of Any Permutation | Array | Medium |
| 1700 | Minimum Time To Make Rope Colorful | Array | Medium |
| 1715 | Split A String Into The Max Number Of Unique Substrings | String | Medium |
| 1716 | Maximum Non Negative Product In A Matrix | Array | Medium |
| 1747 | Lexicographically Smallest String After Applying Operations | Depth-First Search | Medium |
| 1767 | Design Front Middle Back Queue | Array | Medium |
| 1783 | Ways To Make A Fair Array | Array | Medium |
| 1798 | Max Number Of K Sum Pairs | Array | Medium |
| 1813 | Maximum Erasure Value | Array | Medium |
| 1819 | Construct The Lexicographically Largest Valid Sequence | Array | Medium |
| 1830 | Count Good Meals | Array | Medium |
| 1849 | Maximum Absolute Sum Of Any Subarray | Array | Medium |
| 1859 | Change Minimum Characters To Satisfy One Of Three Conditions | String | Medium |
| 1860 | Find Kth Largest Xor Coordinate Value | Array | Medium |
| 1874 | Form Array By Concatenating Subarrays Of Another Array | Array | Medium |
| 1876 | Map Of Highest Peak | Array | Medium |
| 1886 | Minimum Limit Of Balls In A Bag | Array | Medium |
| 1889 | Check If Number Is A Sum Of Powers Of Three | Math | Medium |
| 1895 | Minimum Number Of Operations To Move All Balls To Each Box | Array | Medium |
| 1905 | Design Authentication Manager | Design | Medium |
| 1917 | Maximum Average Pass Ratio | Array | Medium |
| 1923 | Sentence Similarity Iii | Array | Medium |
| 1930 | Maximum Number Of Consecutive Values You Can Make | Array | Medium |
| 1940 | Maximum Xor For Each Query | Array | Medium |
| 1946 | Minimum Absolute Sum Difference | Array | Medium |
| 1966 | Frequency Of The Most Frequent Element | Array | Medium |
| 1972 | Rotating The Box | Array | Medium |
| 1995 | Finding Pairs With A Certain Sum | Array | Medium |
| 2021 | Remove All Occurrences Of A Substring | String | Medium |
| 2047 | Find A Peak Element Ii | Array | Medium |
| 2050 | Count Good Numbers | Math | Medium |
| 2054 | The Number Of The Smallest Unoccupied Chair | Array | Medium |
| 2059 | Unique Length 3 Palindromic Subsequences | String | Medium |
| 2066 | Add Minimum Number Of Rungs | Array | Medium |
| 2078 | Maximum Compatibility Score Sum | Array | Medium |
| 2089 | Maximum Matrix Sum | Array | Medium |
| 2090 | Number Of Ways To Arrive At Destination | Dynamic Programming | Medium |
| 2095 | Minimum Number Of Swaps To Make The String Balanced | String | Medium |
| 2104 | Operations On Tree | Tree | Medium |
| 2107 | Find Unique Binary String | Array | Medium |
| 2113 | Find The Kth Largest Integer In The Array | Array | Medium |
| 2145 | Grid Game | Array | Medium |
| 2151 | The Time When The Network Becomes Idle | Array | Medium |
| 2160 | Minimum Operations To Make A Uni Value Grid | Array | Medium |
| 2161 | Stock Price Fluctuation | Design | Medium |
| 2164 | Two Best Non Overlapping Events | Array | Medium |
| 2169 | Simple Bank System | Array | Medium |
| 2170 | Count Number Of Maximum Bitwise Or Subsets | Array | Medium |
| 2174 | Next Greater Numerically Balanced Number | Math | Medium |
| 2178 | Walking Robot Simulation Ii | Design | Medium |
| 2179 | Most Beautiful Item For Each Query | Array | Medium |
| 2188 | Minimized Maximum Of Products Distributed To Any Store | Array | Medium |
| 2196 | Reverse Nodes In Even Length Groups | Linked List | Medium |
| 2220 | Find All Possible Recipes From Given Supplies | Array | Medium |
| 2221 | Check If A Parentheses String Can Be Valid | String | Medium |
| 2228 | Watering Plants Ii | Array | Medium |
| 2232 | Adding Spaces To A String | Array | Medium |
| 2237 | Longest Palindrome By Concatenating Two Letter Words | Array | Medium |
| 2249 | Count The Hidden Sequences | Array | Medium |
| 2262 | Solving Questions With Brainpower | Array | Medium |
| 2265 | Partition Array According To Given Pivot | Array | Medium |
| 2285 | Design Bitset | Array | Medium |
| 2300 | Construct String With Repeat Limit | String | Medium |
| 2324 | Find Triangular Sum Of An Array | Array | Medium |
| 2338 | Minimum Consecutive Cards To Pick Up | Array | Medium |
| 2343 | Count Unguarded Cells In The Grid | Array | Medium |
| 2356 | Largest Combination With Bitwise And Greater Than Zero | Array | Medium |
| 2358 | Number Of Ways To Split Array | Array | Medium |
| 2362 | Minimum Rounds To Complete All Tasks | Array | Medium |
| 2374 | Steps To Make Array Non Decreasing | Array | Medium |
| 2387 | Partition Array Such That Maximum Difference Is K | Array | Medium |
| 2388 | Replace Elements In An Array | Array | Medium |
| 2392 | Successful Pairs Of Spells And Potions | Array | Medium |
| 2395 | Longest Binary Subsequence Less Than Or Equal To K | String | Medium |
| 2408 | Number Of People Aware Of A Secret | Queue | Medium |
| 2414 | Move Pieces To Obtain A String | String | Medium |
| 2429 | Design A Food Rating System | Array | Medium |
| 2432 | Number Of Zero Filled Subarrays | Array | Medium |
| 2434 | Design A Number Container System | Design | Medium |
| 2438 | Find Closest Node To Given Two Nodes | Depth-First Search | Medium |
| 2448 | Count Number Of Bad Pairs | Array | Medium |
| 2456 | Construct Smallest Number From Di String | String | Medium |
| 2465 | Shifting Letters Ii | Array | Medium |
| 2473 | Max Sum Of A Pair With Equal Sum Of Digits | Array | Medium |
| 2478 | Longest Nice Subarray | Array | Medium |
| 2497 | Maximum Matching Of Players With Trainers | Array | Medium |
| 2498 | Smallest Subarrays With Maximum Bitwise Or | Array | Medium |
| 2503 | Longest Subarray With Maximum Bitwise And | Array | Medium |
| 2512 | Longest Uploaded Prefix | Design | Medium |
| 2520 | Using A Robot To Print The Lexicographically Smallest String | String | Medium |
| 2529 | Range Product Queries Of Powers | Array | Medium |
| 2533 | Bitwise Xor Of All Pairings | Array | Medium |
| 2541 | Sum Of Number And Its Reverse | Math | Medium |
| 2552 | Maximum Sum Of Distinct Subarrays With Length K | Array | Medium |
| 2558 | Minimum Number Of Operations To Sort A Binary Tree By Level | Tree | Medium |
| 2562 | Count Ways To Build Good Strings | Dynamic Programming | Medium |
| 2564 | Most Profitable Path In A Tree | Tree | Medium |
| 2568 | Minimum Fuel Cost To Report To The Capital | Tree | Medium |
| 2573 | Remove Nodes From Linked List | Linked List | Medium |
| 2581 | Divide Players Into Teams Of Equal Skill | Array | Medium |
| 2586 | Longest Square Streak In An Array | Array | Medium |
| 2587 | Design Memory Allocator | Array | Medium |
| 2591 | Frog Jump Ii | Array | Medium |
| 2599 | Take K Of Each Character From Left And Right | String | Medium |
| 2600 | Maximum Tastiness Of Candy Basket | Array | Medium |
| 2604 | Minimum Operations To Make Array Equal Ii | Array | Medium |
| 2610 | Closest Prime Numbers In Range | Math | Medium |
| 2616 | Maximal Score After Applying K Operations | Array | Medium |
| 2620 | Find Consecutive Integers From A Data Stream | Design | Medium |
| 2626 | Count The Number Of Good Subarrays | Array | Medium |
| 2640 | Maximum Number Of Integers To Choose From A Range I | Array | Medium |
| 2646 | Kth Largest Sum In A Binary Tree | Tree | Medium |
| 2649 | Count Total Number Of Colored Cells | Math | Medium |
| 2661 | Smallest Missing Non Negative Integer After Operations | Array | Medium |
| 2665 | Minimum Time To Repair Cars | Array | Medium |
| 2677 | Cousins In Binary Tree Ii | Tree | Medium |
| 2685 | First Completely Painted Row Or Column | Array | Medium |
| 2691 | Count Vowel Strings In Ranges | Array | Medium |
| 2695 | Find Score Of An Array After Marking All Elements | Array | Medium |
| 2699 | Count The Number Of Fair Pairs | Array | Medium |
| 2716 | Prime Subtraction Operation | Array | Medium |
| 2755 | Extra Characters In A String | Array | Medium |
| 2764 | Maximum Number Of Fish In A Grid | Depth-First Search | Medium |
| 2766 | Find The Prefix Common Array Of Two Arrays | Array | Medium |
| 2778 | Frequency Tracker | Design | Medium |
| 2792 | Neighboring Bitwise Xor | Array | Medium |
| 2793 | Count The Number Of Complete Components | Depth-First Search | Medium |
| 2794 | Maximum Number Of Moves In A Grid | Array | Medium |
| 2837 | Minimum Operations To Make The Integer Zero | Bit Manipulation | Medium |
| 2845 | Find The Value Of The Partition | Array | Medium |
| 2848 | Special Permutations | Array | Medium |
| 2856 | Count Complete Subarrays In An Array | Array | Medium |
| 2868 | Continuous Subarrays | Array | Medium |
| 2871 | Double A Number Represented As A Linked List | Math | Medium |
| 2872 | Largest Element In An Array After Merge Operations | Array | Medium |
| 2882 | Ways To Express An Integer As Sum Of Powers | Dynamic Programming | Medium |
| 2888 | Minimum Index Of A Valid Split | Array | Medium |
| 2891 | Maximum Beauty Of An Array After Applying Operation | Array | Medium |
| 2893 | Visit Array Positions To Maximize Score | Array | Medium |
| 2914 | Find The Safest Path In A Grid | Array | Medium |
| 2915 | Count Of Interesting Subarrays | Array | Medium |
| 3000 | Minimum Absolute Difference Between Elements With Constraint | Array | Medium |
| 3018 | Make String A Subsequence Using Cyclic Increments | String | Medium |
| 3033 | Apply Operations To Make Two Strings Equal | String | Medium |
| 3106 | Length Of The Longest Subsequence That Sums To Target | Array | Medium |
| 3142 | Longest Unequal Adjacent Groups Subsequence Ii | Array | Medium |
| 3150 | Shortest And Lexicographically Smallest Beautiful String | String | Medium |
| 3151 | Minimum Processing Time | Array | Medium |
| 3152 | Maximum Value Of An Ordered Triplet Ii | Array | Medium |
| 3170 | Find Indices With Index And Value Difference Ii | Array | Medium |
| 3171 | Minimum Equal Sum Of Two Arrays After Replacing Zeros | Array | Medium |
| 3174 | Minimum Number Of Changes To Make Binary String Beautiful | String | Medium |
| 3189 | Find Champion Ii | Graph | Medium |
| 3191 | Maximum Score After Applying Operations On A Tree | Tree | Medium |
| 3195 | Separate Black And White Balls | String | Medium |
| 3201 | Distribute Candies Among Children Ii | Math | Medium |
| 3213 | Count Subarrays Where Max Element Appears At Least K Times | Array | Medium |
| 3219 | Make Lexicographically Smallest Array By Swapping Elements | Array | Medium |
| 3239 | Minimum Number Of Operations To Make X And Y Equal | Breadth-First Search | Medium |
| 3241 | Divide Array Into Arrays With Max Difference | Array | Medium |
| 3267 | Find Longest Special Substring That Occurs Thrice I | String | Medium |
| 3278 | Find The Number Of Ways To Place People I | Array | Medium |
| 3279 | Alice And Bob Playing Flower Game | Math | Medium |
| 3291 | Find If Array Can Be Sorted | Array | Medium |
| 3329 | Find The Length Of The Longest Common Prefix | Array | Medium |
| 3332 | Minimum Operations To Exceed Threshold Value Ii | Array | Medium |
| 3336 | Water Bottles Ii | Math | Medium |
| 3351 | Maximize Happiness Of Selected Children | Array | Medium |
| 3360 | Minimum Deletions To Make String K Special | String | Medium |
| 3380 | Shortest Subarray With Or At Least K Ii | Array | Medium |
| 3383 | Taking Maximum Energy From The Mystic Dungeon | Array | Medium |
| 3394 | Minimum Array End | Bit Manipulation | Medium |
| 3427 | Special Array Ii | Array | Medium |
| 3430 | Count Days Without Meetings | Array | Medium |
| 3434 | Find The Number Of Distinct Colors Among The Balls | Array | Medium |
| 3437 | Maximum Total Damage With Spell Casting | Array | Medium |
| 3445 | Lexicographically Minimum String After Removing Stars | String | Medium |
| 3451 | String Compression Iii | String | Medium |
| 3455 | Minimum Length Of String After Operations | String | Medium |
| 3461 | Find The Minimum Area To Cover All Ones I | Array | Medium |
| 3462 | Vowels Game In A String | Math | Medium |
| 3475 | Minimum Operations To Make Binary Array Elements Equal To One I | Array | Medium |
| 3483 | Alternating Groups Ii | Array | Medium |
| 3490 | Find The Maximum Length Of Valid Subsequence I | Array | Medium |
| 3491 | Find The Maximum Length Of Valid Subsequence Ii | Array | Medium |
| 3569 | Count Of Substrings Containing Every Vowel And K Consonants Ii | String | Medium |
| 3620 | Maximum Number Of Distinct Elements After Operations | Array | Medium |
| 3622 | Maximum Frequency Of An Element After Performing Operations I | Array | Medium |
| 3627 | Find Minimum Time To Reach Last Room I | Array | Medium |
| 3628 | Find Minimum Time To Reach Last Room Ii | Array | Medium |
| 3633 | Maximize The Number Of Target Nodes After Connecting Trees I | Tree | Medium |
| 3639 | Zero Array Transformation I | Array | Medium |
| 3649 | Minimum Time To Break Locks I | Depth-First Search | Medium |
| 3653 | Maximum Subarray Sum With Length Divisible By K | Array | Medium |
| 3657 | Check If Grid Can Be Cut Into Sections | Array | Medium |
| 3677 | Maximum Amount Of Money Robot Can Earn | Array | Medium |
| 3683 | Find The Lexicographically Largest String From The Box I | String | Medium |
| 3714 | Maximum And Minimum Sums Of At Most Size K Subsequences | Array | Medium |
| 3741 | Reschedule Meetings For Maximum Free Time Ii | Array | Medium |
| 3743 | Reschedule Meetings For Maximum Free Time I | Array | Medium |
| 3748 | Sort Matrix By Diagonals | Array | Medium |
| 3754 | Maximum Manhattan Distance After K Changes | Math | Medium |
| 3794 | Find The Minimum Amount Of Time To Brew Potions | Array | Medium |
| 3797 | Design Spreadsheet | Array | Medium |
| 3800 | Longest Common Prefix Between Adjacent Strings After Removals | Array | Medium |
| 3809 | Properties Graph | Depth-First Search | Medium |
| 3827 | Implement Router | Array | Medium |
| 3837 | Grid Teleportation Traversal | Array | Medium |