Sorting

Bucket Sort

• 912. Sort an Array
• 692. Top K Frequent Words
• 451. Sort Characters By Frequency
• 347. Top K Frequent Elements
• 220. Contains Duplicate III
• 164. Maximum Gap

Counting Sort

• 3517. Smallest Palindromic Rearrangement I
• 3189. Minimum Moves to Get a Peaceful Board
• 3088. Make String Anti-palindrome
• 2037. Minimum Number of Moves to Seat Everyone
• 1833. Maximum Ice Cream Bars
• 1365. How Many Numbers Are Smaller Than the Current Number
• 1122. Relative Sort Array
• 1051. Height Checker
• 912. Sort an Array
• 561. Array Partition
• 274. H-Index

Merge Sort

• 3109. Find the Index of Permutation
• 2519. Count the Number of K-Big Indices
• 2426. Number of Pairs Satisfying Inequality
• 2179. Count Good Triplets in an Array
• 2031. Count Subarrays With More Ones Than Zeros
• 1649. Create Sorted Array through Instructions
• 912. Sort an Array
• 493. Reverse Pairs
• 327. Count of Range Sum
• 315. Count of Smaller Numbers After Self
• 148. Sort List
• 23. Merge k Sorted Lists

Quickselect

• 2343. Query Kth Smallest Trimmed Number
• 1985. Find the Kth Largest Integer in the Array
• 1738. Find Kth Largest XOR Coordinate Value
• 973. K Closest Points to Origin
• 347. Top K Frequent Elements
• 324. Wiggle Sort II
• 215. Kth Largest Element in an Array

Radix Sort

• 2343. Query Kth Smallest Trimmed Number
• 912. Sort an Array
• 164. Maximum Gap

Sorting

• 3517. Smallest Palindromic Rearrangement I
• 3491. Phone Number Prefix
• 3478. Choose K Elements With Maximum Sum
• 3476. Maximize Profit from Task Assignment
• 3467. Transform Array by Parity
• 3462. Maximum Sum With at Most K Elements
• 3458. Select K Disjoint Special Substrings
• 3457. Eat Pizzas!
• 3446. Sort Matrix by Diagonals
• 3433. Count Mentions Per User
• 3428. Maximum and Minimum Sums of at Most Size K Subsequences
• 3424. Minimum Cost to Make Arrays Identical
• 3414. Maximum Score of Non-overlapping Intervals
• 3413. Maximum Coins From K Consecutive Bags
• 3397. Maximum Number of Distinct Elements After Operations
• 3394. Check if Grid can be Cut into Sections
• 3382. Maximum Area Rectangle With Point Constraints II
• 3380. Maximum Area Rectangle With Point Constraints I
• 3365. Rearrange K Substrings to Form Target String
• 3362. Zero Array Transformation III
• 3347. Maximum Frequency of an Element After Performing Operations II
• 3346. Maximum Frequency of an Element After Performing Operations I
• 3323. Minimize Connected Groups by Inserting Interval
• 3319. K-th Largest Perfect Subtree Size in Binary Tree
• 3301. Maximize the Total Height of Unique Towers
• 3288. Length of the Longest Increasing Path
• 3281. Maximize Score of Numbers in Ranges
• 3273. Minimum Amount of Damage Dealt to Bob
• 3267. Count Almost Equal Pairs II
• 3265. Count Almost Equal Pairs I
• 3219. Minimum Cost for Cutting Cake II
• 3218. Minimum Cost for Cutting Cake I
• 3194. Minimum Average of Smallest and Largest Elements
• 3189. Minimum Moves to Get a Peaceful Board
• 3186. Maximum Total Damage With Spell Casting
• 3169. Count Days Without Meetings
• 3167. Better Compression of String
• 3143. Maximum Points Inside the Square
• 3132. Find the Integer Added to Array II
• 3125. Maximum Number That Makes Result of Bitwise AND Zero
• 3119. Maximum Number of Potholes That Can Be Fixed
• 3111. Minimum Rectangles to Cover Points
• 3107. Minimum Operations to Make Median of Array Equal to K
• 3102. Minimize Manhattan Distances
• 3098. Find the Sum of Subsequence Powers
• 3088. Make String Anti-palindrome
• 3085. Minimum Deletions to Make String K-Special
• 3081. Replace Question Marks in String to Minimize Its Value
• 3080. Mark Elements on Array by Performing Queries
• 3075. Maximize Happiness of Selected Children
• 3074. Apple Redistribution into Boxes
• 3068. Find the Maximum Sum of Node Values
• 3041. Maximize Consecutive Elements in an Array After Modification
• 3039. Apply Operations to Make String Empty
• 3035. Maximum Palindromes After Operations
• 3027. Find the Number of Ways to Place People II
• 3025. Find the Number of Ways to Place People I
• 3024. Type of Triangle
• 3016. Minimum Number of Pushes to Type Word II
• 3011. Find if Array Can Be Sorted
• 3010. Divide an Array Into Subarrays With Minimum Cost I
• 2996. Smallest Missing Integer Greater Than Sequential Prefix Sum
• 2974. Minimum Number Game
• 2973. Find Number of Coins to Place in Tree Nodes
• 2971. Find Polygon With the Largest Perimeter
• 2968. Apply Operations to Maximize Frequency Score
• 2967. Minimum Cost to Make Array Equalindromic
• 2966. Divide Array Into Arrays With Max Difference
• 2952. Minimum Number of Coins to be Added
• 2948. Make Lexicographically Smallest Array by Swapping Elements
• 2943. Maximize Area of Square Hole in Grid
• 2933. High-Access Employees
• 2931. Maximum Spending After Buying Items
• 2895. Minimum Processing Time
• 2863. Maximum Length of Semi-Decreasing Subarrays
• 2860. Happy Students
• 2840. Check if Strings Can be Made Equal With Operations II
• 2838. Maximum Coins Heroes Can Collect
• 2830. Maximize the Profit as the Salesman
• 2824. Count Pairs Whose Sum is Less than Target
• 2819. Minimum Relative Loss After Buying Chocolates
• 2818. Apply Operations to Maximize Score
• 2813. Maximum Elegance of a K-Length Subsequence
• 2809. Minimum Time to Make Array Sum At Most x
• 2790. Maximum Number of Groups With Increasing Length
• 2785. Sort Vowels in a String
• 2784. Check if Array is Good
• 2780. Minimum Index of a Valid Split
• 2779. Maximum Beauty of an Array After Applying Operation
• 2766. Relocate Marbles
• 2751. Robot Collisions
• 2747. Count Zero Request Servers
• 2740. Find the Value of the Partition
• 2736. Maximum Sum Queries
• 2733. Neither Minimum nor Maximum
• 2731. Movement of Robots
• 2713. Maximum Strictly Increasing Cells in a Matrix
• 2708. Maximum Strength of a Group
• 2706. Buy Two Chocolates
• 2681. Power of Heroes
• 2679. Sum in a Matrix
• 2659. Make Array Empty
• 2655. Find Maximal Uncovered Ranges
• 2638. Count the Number of K-Free Subsets
• 2613. Beautiful Pairs
• 2611. Mice and Cheese
• 2607. Make K-Subarray Sums Equal
• 2604. Minimum Time to Eat All Grains
• 2602. Minimum Operations to Make All Array Elements Equal
• 2597. The Number of Beautiful Subsets
• 2593. Find Score of an Array After Marking All Elements
• 2592. Maximize Greatness of an Array
• 2590. Design a Todo List
• 2589. Minimum Time to Complete All Tasks
• 2587. Rearrange Array to Maximize Prefix Score
• 2583. Kth Largest Sum in a Binary Tree
• 2580. Count Ways to Group Overlapping Ranges
• 2578. Split With Minimum Sum
• 2576. Find the Maximum Number of Marked Indices
• 2567. Minimum Score by Changing Two Elements
• 2563. Count the Number of Fair Pairs
• 2557. Maximum Number of Integers to Choose From a Range II
• 2554. Maximum Number of Integers to Choose From a Range I
• 2551. Put Marbles in Bags
• 2548. Maximum Price to Fill a Bag
• 2545. Sort the Students by Their Kth Score
• 2542. Maximum Subsequence Score
• 2517. Maximum Tastiness of Candy Basket
• 2512. Reward Top K Students
• 2503. Maximum Number of Points From Grid Queries
• 2501. Longest Square Streak in an Array
• 2500. Delete Greatest Value in Each Row
• 2497. Maximum Star Sum of a Graph
• 2491. Divide Players Into Teams of Equal Skill
• 2475. Number of Unequal Triplets in Array
• 2465. Number of Distinct Averages
• 2463. Minimum Total Distance Traveled
• 2459. Sort Array by Moving Items to Empty Space
• 2456. Most Popular Video Creator
• 2454. Next Greater Element IV
• 2449. Minimum Number of Operations to Make Arrays Similar
• 2448. Minimum Cost to Make Array Equal
• 2441. Largest Positive Integer That Exists With Its Negative
• 2421. Number of Good Paths
• 2418. Sort the People
• 2412. Minimum Money Required Before Transactions
• 2410. Maximum Matching of Players With Trainers
• 2406. Divide Intervals Into Minimum Number of Groups
• 2402. Meeting Rooms III
• 2389. Longest Subsequence With Limited Sum
• 2386. Find the K-Sum of an Array
• 2371. Minimize Maximum Value in a Grid
• 2363. Merge Similar Items
• 2357. Make Array Zero by Subtracting Equal Amounts
• 2345. Finding the Number of Visible Mountains
• 2344. Minimum Deletions to Make Array Divisible
• 2343. Query Kth Smallest Trimmed Number
• 2342. Max Sum of a Pair With Equal Sum of Digits
• 2335. Minimum Amount of Time to Fill Cups
• 2333. Minimum Sum of Squared Difference
• 2332. The Latest Time to Catch a Bus
• 2323. Find Minimum Time to Finish All Jobs II
• 2300. Successful Pairs of Spells and Potions
• 2294. Partition Array Such That Maximum Difference Is K
• 2285. Maximum Total Importance of Roads
• 2280. Minimum Lines to Represent a Line Chart
• 2279. Maximum Bags With Full Capacity of Rocks
• 2274. Maximum Consecutive Floors Without Special Floors
• 2273. Find Resultant Array After Removing Anagrams
• 2271. Maximum White Tiles Covered by a Carpet
• 2268. Minimum Number of Keypresses
• 2251. Number of Flowers in Full Bloom
• 2250. Count Number of Rectangles Containing Each Point
• 2248. Intersection of Multiple Arrays
• 2242. Maximum Score of a Node Sequence
• 2234. Maximum Total Beauty of the Gardens
• 2231. Largest Number After Digit Swaps by Parity
• 2229. Check if an Array Is Consecutive
• 2225. Find Players With Zero or One Losses
• 2195. Append K Integers With Minimal Sum
• 2191. Sort the Jumbled Numbers
• 2171. Removing Minimum Number of Magic Beans
• 2165. Smallest Value of the Rearranged Number
• 2164. Sort Even and Odd Indices Independently
• 2160. Minimum Sum of Four Digit Number After Splitting Digits
• 2154. Keep Multiplying Found Values by Two
• 2148. Count Elements With Strictly Smaller and Greater Elements
• 2146. K Highest Ranked Items Within a Price Range
• 2144. Minimum Cost of Buying Candies With Discount
• 2141. Maximum Running Time of N Computers
• 2136. Earliest Possible Day of Full Bloom
• 2135. Count Words Obtained After Adding a Letter
• 2126. Destroying Asteroids
• 2122. Recover the Original Array
• 2099. Find Subsequence of Length K With the Largest Sum
• 2098. Subsequence of Size K With the Largest Even Sum
• 2094. Finding 3-Digit Even Numbers
• 2092. Find All People With Secret
• 2089. Find Target Indices After Sorting Array
• 2071. Maximum Number of Tasks You Can Assign
• 2070. Most Beautiful Item for Each Query
• 2054. Two Best Non-Overlapping Events
• 2046. Sort Linked List Already Sorted Using Absolute Values
• 2037. Minimum Number of Moves to Seat Everyone
• 2033. Minimum Operations to Make a Uni-Value Grid
• 2021. Brightest Position on Street
• 2015. Average Height of Buildings in Each Segment
• 2008. Maximum Earnings From Taxi
• 2007. Find Original Array From Doubled Array
• 1998. GCD Sort of an Array
• 1996. The Number of Weak Characters in the Game
• 1985. Find the Kth Largest Integer in the Array
• 1984. Minimum Difference Between Highest and Lowest of K Scores
• 1968. Array With Elements Not Equal to Average of Neighbors
• 1943. Describe the Painting
• 1921. Eliminate Maximum Number of Monsters
• 1913. Maximum Product Difference Between Two Pairs
• 1889. Minimum Space Wasted From Packaging
• 1887. Reduction Operations to Make the Array Elements Equal
• 1885. Count Pairs in Two Arrays
• 1878. Get Biggest Three Rhombus Sums in a Grid
• 1877. Minimize Maximum Pair Sum in Array
• 1874. Minimize Product Sum of Two Arrays
• 1859. Sorting the Sentence
• 1851. Minimum Interval to Include Each Query
• 1847. Closest Room
• 1846. Maximum Element After Decreasing and Rearranging
• 1840. Maximum Building Height
• 1838. Frequency of the Most Frequent Element
• 1834. Single-Threaded CPU
• 1833. Maximum Ice Cream Bars
• 1818. Minimum Absolute Sum Difference
• 1798. Maximum Number of Consecutive Values You Can Make
• 1782. Count Pairs Of Nodes
• 1772. Sort Features by Popularity
• 1755. Closest Subsequence Sum
• 1751. Maximum Number of Events That Can Be Attended II
• 1738. Find Kth Largest XOR Coordinate Value
• 1727. Largest Submatrix With Rearrangements
• 1710. Maximum Units on a Truck
• 1697. Checking Existence of Edge Length Limited Paths
• 1691. Maximum Height by Stacking Cuboids
• 1686. Stone Game VI
• 1679. Max Number of K-Sum Pairs
• 1665. Minimum Initial Energy to Finish Tasks
• 1657. Determine if Two Strings Are Close
• 1648. Sell Diminishing-Valued Colored Balls
• 1647. Minimum Deletions to Make Character Frequencies Unique
• 1637. Widest Vertical Area Between Two Points Containing No Points
• 1636. Sort Array by Increasing Frequency
• 1632. Rank Transform of a Matrix
• 1630. Arithmetic Subarrays
• 1626. Best Team With No Conflicts
• 1619. Mean of Array After Removing Some Elements
• 1610. Maximum Number of Visible Points
• 1608. Special Array With X Elements Greater Than or Equal X
• 1604. Alert Using Same Key-Card Three or More Times in a One Hour Period
• 1589. Maximum Sum Obtained of Any Permutation
• 1585. Check If String Is Transformable With Substring Sort Operations
• 1580. Put Boxes Into the Warehouse II
• 1564. Put Boxes Into the Warehouse I
• 1561. Maximum Number of Coins You Can Get
• 1552. Magnetic Force Between Two Balls
• 1547. Minimum Cost to Cut a Stick
• 1509. Minimum Difference Between Largest and Smallest Value in Three Moves
• 1508. Range Sum of Sorted Subarray Sums
• 1502. Can Make Arithmetic Progression From Sequence
• 1500. Design a File Sharing System
• 1498. Number of Subsequences That Satisfy the Given Sum Condition
• 1491. Average Salary Excluding the Minimum and Maximum Salary
• 1489. Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree
• 1481. Least Number of Unique Integers after K Removals
• 1478. Allocate Mailboxes
• 1471. The k Strongest Values in an Array
• 1465. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts
• 1464. Maximum Product of Two Elements in an Array
• 1460. Make Two Arrays Equal by Reversing Subarrays
• 1451. Rearrange Words in a Sentence
• 1433. Check If a String Can Break Another String
• 1424. Diagonal Traverse II
• 1418. Display Table of Food Orders in a Restaurant
• 1403. Minimum Subsequence in Non-Increasing Order
• 1402. Reducing Dishes
• 1387. Sort Integers by The Power Value
• 1385. Find the Distance Value Between Two Arrays
• 1383. Maximum Performance of a Team
• 1366. Rank Teams by Votes
• 1365. How Many Numbers Are Smaller Than the Current Number
• 1363. Largest Multiple of Three
• 1356. Sort Integers by The Number of 1 Bits
• 1353. Maximum Number of Events That Can Be Attended
• 1348. Tweet Counts Per Frequency
• 1346. Check If N and Its Double Exist
• 1340. Jump Game V
• 1338. Reduce Array Size to The Half
• 1337. The K Weakest Rows in a Matrix
• 1333. Filter Restaurants by Vegan-Friendly, Price and Distance
• 1331. Rank Transform of an Array
• 1329. Sort the Matrix Diagonally
• 1311. Get Watched Videos by Your Friends
• 1305. All Elements in Two Binary Search Trees
• 1300. Sum of Mutated Array Closest to Target
• 1296. Divide Array in Sets of K Consecutive Numbers
• 1288. Remove Covered Intervals
• 1268. Search Suggestions System
• 1262. Greatest Sum Divisible by Three
• 1244. Design A Leaderboard
• 1235. Maximum Profit in Job Scheduling
• 1229. Meeting Scheduler
• 1202. Smallest String With Swaps
• 1200. Minimum Absolute Difference
• 1196. How Many Apples Can You Put into the Basket
• 1187. Make Array Strictly Increasing
• 1183. Maximum Number of Ones
• 1181. Before and After Puzzle
• 1170. Compare Strings by Frequency of the Smallest Character
• 1169. Invalid Transactions
• 1152. Analyze User Website Visit Pattern
• 1133. Largest Unique Number
• 1122. Relative Sort Array
• 1101. The Earliest Moment When Everyone Become Friends
• 1099. Two Sum Less Than K
• 1094. Car Pooling
• 1090. Largest Values From Labels
• 1086. High Five
• 1065. Index Pairs of a String
• 1058. Minimize Rounding Error to Meet Target
• 1057. Campus Bikes
• 1054. Distant Barcodes
• 1051. Height Checker
• 1048. Longest String Chain
• 1040. Moving Stones Until Consecutive II
• 1030. Matrix Cells in Distance Order
• 1029. Two City Scheduling
• 1005. Maximize Sum Of Array After K Negations
• 987. Vertical Order Traversal of a Binary Tree
• 977. Squares of a Sorted Array
• 976. Largest Perimeter Triangle
• 973. K Closest Points to Origin
• 969. Pancake Sorting
• 954. Array of Doubled Pairs
• 950. Reveal Cards In Increasing Order
• 948. Bag of Tokens
• 945. Minimum Increment to Make Array Unique
• 939. Minimum Area Rectangle
• 937. Reorder Data in Log Files
• 923. 3Sum With Multiplicity
• 922. Sort Array By Parity II
• 912. Sort an Array
• 910. Smallest Range II
• 905. Sort Array By Parity
• 899. Orderly Queue
• 893. Groups of Special-Equivalent Strings
• 891. Sum of Subsequence Widths
• 888. Fair Candy Swap
• 881. Boats to Save People
• 870. Advantage Shuffle
• 869. Reordered Power of 2
• 857. Minimum Cost to Hire K Workers
• 853. Car Fleet
• 846. Hand of Straights
• 833. Find And Replace in String
• 826. Most Profit Assigning Work
• 825. Friends Of Appropriate Ages
• 823. Binary Trees With Factors
• 792. Number of Matching Subsequences
• 791. Custom Sort String
• 786. K-th Smallest Prime Fraction
• 769. Max Chunks To Make Sorted
• 768. Max Chunks To Make Sorted II
• 767. Reorganize String
• 759. Employee Free Time
• 757. Set Intersection Size At Least Two
• 747. Largest Number At Least Twice of Others
• 726. Number of Atoms
• 721. Accounts Merge
• 720. Longest Word in Dictionary
• 719. Find K-th Smallest Pair Distance
• 710. Random Pick with Blacklist
• 692. Top K Frequent Words
• 658. Find K Closest Elements
• 646. Maximum Length of Pair Chain
• 645. Set Mismatch
• 642. Design Search Autocomplete System
• 632. Smallest Range Covering Elements from K Lists
• 630. Course Schedule III
• 628. Maximum Product of Three Numbers
• 621. Task Scheduler
• 611. Valid Triangle Number
• 594. Longest Harmonious Subsequence
• 588. Design In-Memory File System
• 581. Shortest Unsorted Continuous Subarray
• 561. Array Partition
• 539. Minimum Time Difference
• 532. K-diff Pairs in an Array
• 527. Word Abbreviation
• 524. Longest Word in Dictionary through Deleting
• 522. Longest Uncommon Subsequence II
• 506. Relative Ranks
• 502. IPO
• 475. Heaters
• 462. Minimum Moves to Equal Array Elements II
• 455. Assign Cookies
• 452. Minimum Number of Arrows to Burst Balloons
• 451. Sort Characters By Frequency
• 436. Find Right Interval
• 435. Non-overlapping Intervals
• 414. Third Maximum Number
• 406. Queue Reconstruction by Height
• 389. Find the Difference
• 378. Kth Smallest Element in a Sorted Matrix
• 368. Largest Divisible Subset
• 360. Sort Transformed Array
• 358. Rearrange String k Distance Apart
• 354. Russian Doll Envelopes
• 350. Intersection of Two Arrays II
• 349. Intersection of Two Arrays
• 347. Top K Frequent Elements
• 324. Wiggle Sort II
• 314. Binary Tree Vertical Order Traversal
• 296. Best Meeting Point
• 295. Find Median from Data Stream
• 280. Wiggle Sort
• 274. H-Index
• 268. Missing Number
• 259. 3Sum Smaller
• 253. Meeting Rooms II
• 252. Meeting Rooms
• 242. Valid Anagram
• 229. Majority Element II
• 220. Contains Duplicate III
• 217. Contains Duplicate
• 215. Kth Largest Element in an Array
• 179. Largest Number
• 169. Majority Element
• 164. Maximum Gap
• 148. Sort List
• 147. Insertion Sort List
• 88. Merge Sorted Array
• 75. Sort Colors
• 56. Merge Intervals
• 49. Group Anagrams
• 47. Permutations II
• 18. 4Sum
• 16. 3Sum Closest
• 15. 3Sum