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Interview question tracker

Amazon Coding Interview Questions — Last 6 months

Practice 774 coding questions from Amazon company-tagged LeetCode lists in the source’s last 6 months reporting window. Explore reported interview questions and track your progress.

Company-wide data from Fahad7177-jeh/leetcode-company-wise-questions; see its AGPL-3.0 license. All-time questions also use dataengineervishal/leetcode-companywise-questions (MIT license).

Reporting periods reflect source data, not verified interview dates. Questions can recur; inclusion does not guarantee they will appear in your interview.

Updated weekly · Latest source check: 15 Oct 2026ⓘLatest successful check of the sources used by this company. A check does not necessarily mean the questions changed.

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Top questions 774

Done	Question	LeetCode
Mark Two Sum completed	Two Sum	Solve
Mark Longest Substring Without Repeating Characters completed	Longest Substring Without Repeating Characters	Solve
Mark LRU Cache completed	LRU Cache	Solve
Mark 3Sum completed	3Sum	Solve
Mark Add Two Numbers completed	Add Two Numbers	Solve
Mark Best Time to Buy and Sell Stock completed	Best Time to Buy and Sell Stock	Solve
Mark Container With Most Water completed	Container With Most Water	Solve
Mark Course Schedule completed	Course Schedule	Solve
Mark Group Anagrams completed	Group Anagrams	Solve
Mark Koko Eating Bananas completed	Koko Eating Bananas	Solve
Mark Longest Common Prefix completed	Longest Common Prefix	Solve
Mark Longest Palindromic Substring completed	Longest Palindromic Substring	Solve
Mark Median of Two Sorted Arrays completed	Median of Two Sorted Arrays	Solve
Mark Merge Intervals completed	Merge Intervals	Solve
Mark Number of Islands completed	Number of Islands	Solve
Mark Reorganize String completed	Reorganize String	Solve
Mark Subarray Sum Equals K completed	Subarray Sum Equals K	Solve
Mark Trapping Rain Water completed	Trapping Rain Water	Solve
Mark Valid Parentheses completed	Valid Parentheses	Solve
Mark Analyze User Website Visit Pattern completed	Analyze User Website Visit Pattern	Solve
Mark Binary Tree Maximum Path Sum completed	Binary Tree Maximum Path Sum	Solve
Mark Climbing Stairs completed	Climbing Stairs	Solve
Mark Copy List with Random Pointer completed	Copy List with Random Pointer	Solve
Mark Course Schedule II completed	Course Schedule II	Solve
Mark Edit Distance completed	Edit Distance	Solve
Mark Find First and Last Position of Element in Sorted Array completed	Find First and Last Position of Element in Sorted Array	Solve
Mark Find Median from Data Stream completed	Find Median from Data Stream	Solve
Mark Find Peak Element completed	Find Peak Element	Solve
Mark First Missing Positive completed	First Missing Positive	Solve
Mark Generate Parentheses completed	Generate Parentheses	Solve
Mark House Robber completed	House Robber	Solve
Mark Jump Game completed	Jump Game	Solve
Mark Jump Game II completed	Jump Game II	Solve
Mark Letter Combinations of a Phone Number completed	Letter Combinations of a Phone Number	Solve
Mark Longest Consecutive Sequence completed	Longest Consecutive Sequence	Solve
Mark Lowest Common Ancestor of a Binary Tree completed	Lowest Common Ancestor of a Binary Tree	Solve
Mark Majority Element completed	Majority Element	Solve
Mark Maximum Frequency After Subarray Operation completed	Maximum Frequency After Subarray Operation	Solve
Mark Maximum Subarray completed	Maximum Subarray	Solve
Mark Meeting Rooms II completed	Meeting Rooms II	Solve
Mark Merge k Sorted Lists completed	Merge k Sorted Lists	Solve
Mark Merge Sorted Array completed	Merge Sorted Array	Solve
Mark Merge Two Sorted Lists completed	Merge Two Sorted Lists	Solve
Mark Minimum Number of Primes to Sum to Target completed	Minimum Number of Primes to Sum to Target	Solve
Mark Minimum Time to Complete All Deliveries completed	Minimum Time to Complete All Deliveries	Solve
Mark Minimum Window Substring completed	Minimum Window Substring	Solve
Mark N-Queens completed	N-Queens	Solve
Mark Next Permutation completed	Next Permutation	Solve
Mark Palindrome Number completed	Palindrome Number	Solve
Mark Pascal's Triangle completed	Pascal's Triangle	Solve
Mark Product of Array Except Self completed	Product of Array Except Self	Solve
Mark Remove Duplicates from Sorted Array completed	Remove Duplicates from Sorted Array	Solve
Mark Reverse Linked List completed	Reverse Linked List	Solve
Mark Roman to Integer completed	Roman to Integer	Solve
Mark Rotting Oranges completed	Rotting Oranges	Solve
Mark Search a 2D Matrix completed	Search a 2D Matrix	Solve
Mark Search in Rotated Sorted Array completed	Search in Rotated Sorted Array	Solve
Mark Single Element in a Sorted Array completed	Single Element in a Sorted Array	Solve
Mark Sliding Window Maximum completed	Sliding Window Maximum	Solve
Mark Top K Frequent Elements completed	Top K Frequent Elements	Solve
Mark Word Ladder completed	Word Ladder	Solve
Mark Word Search completed	Word Search	Solve
Mark Asteroid Collision completed	Asteroid Collision	Solve
Mark Balanced Binary Tree completed	Balanced Binary Tree	Solve
Mark Best Time to Buy and Sell Stock II completed	Best Time to Buy and Sell Stock II	Solve
Mark Binary Tree Level Order Traversal completed	Binary Tree Level Order Traversal	Solve
Mark Binary Tree Right Side View completed	Binary Tree Right Side View	Solve
Mark Binary Tree Zigzag Level Order Traversal completed	Binary Tree Zigzag Level Order Traversal	Solve
Mark Candy completed	Candy	Solve
Mark Capacity To Ship Packages Within D Days completed	Capacity To Ship Packages Within D Days	Solve
Mark Coin Change completed	Coin Change	Solve
Mark Combine Two Tables completed	Combine Two Tables	Solve
Mark Concatenated Words completed	Concatenated Words	Solve
Mark Construct Binary Tree from Preorder and Inorder Traversal completed	Construct Binary Tree from Preorder and Inorder Traversal	Solve
Mark Contains Duplicate completed	Contains Duplicate	Solve
Mark Daily Temperatures completed	Daily Temperatures	Solve
Mark Diameter of Binary Tree completed	Diameter of Binary Tree	Solve
Mark Evaluate Division completed	Evaluate Division	Solve
Mark Find the Duplicate Number completed	Find the Duplicate Number	Solve
Mark Find the Index of the First Occurrence in a String completed	Find the Index of the First Occurrence in a String	Solve
Mark First Unique Character in a String completed	First Unique Character in a String	Solve
Mark Flood Fill completed	Flood Fill	Solve
Mark Fruit Into Baskets completed	Fruit Into Baskets	Solve
Mark Gas Station completed	Gas Station	Solve
Mark Happy Number completed	Happy Number	Solve
Mark House Robber III completed	House Robber III	Solve
Mark Insert Delete GetRandom O(1) completed	Insert Delete GetRandom O(1)	Solve
Mark Intersection of Two Arrays completed	Intersection of Two Arrays	Solve
Mark Kth Largest Element in an Array completed	Kth Largest Element in an Array	Solve
Mark Largest Number completed	Largest Number	Solve
Mark Largest Rectangle in Histogram completed	Largest Rectangle in Histogram	Solve
Mark LFU Cache completed	LFU Cache	Solve
Mark Linked List Cycle completed	Linked List Cycle	Solve
Mark Longest Repeating Character Replacement completed	Longest Repeating Character Replacement	Solve
Mark Max Consecutive Ones III completed	Max Consecutive Ones III	Solve
Mark Maximum K to Sort a Permutation completed	Maximum K to Sort a Permutation	Solve
Mark Maximum Profit in Job Scheduling completed	Maximum Profit in Job Scheduling	Solve
Mark Min Stack completed	Min Stack	Solve
Mark Missing Number completed	Missing Number	Solve
Mark Move Zeroes completed	Move Zeroes	Solve
Mark Next Greater Element II completed	Next Greater Element II	Solve
Mark Odd Even Linked List completed	Odd Even Linked List	Solve
Mark Pacific Atlantic Water Flow completed	Pacific Atlantic Water Flow	Solve
Mark Partition Equal Subset Sum completed	Partition Equal Subset Sum	Solve
Mark Permutations completed	Permutations	Solve
Mark Populating Next Right Pointers in Each Node completed	Populating Next Right Pointers in Each Node	Solve
Mark Recyclable and Low Fat Products completed	Recyclable and Low Fat Products	Solve
Mark Regular Expression Matching completed	Regular Expression Matching	Solve
Mark Remove Element completed	Remove Element	Solve
Mark Reverse Integer completed	Reverse Integer	Solve
Mark Reverse Nodes in k-Group completed	Reverse Nodes in k-Group	Solve
Mark Reverse Words in a String completed	Reverse Words in a String	Solve
Mark Rotate Array completed	Rotate Array	Solve
Mark Rotate Image completed	Rotate Image	Solve
Mark Search Insert Position completed	Search Insert Position	Solve
Mark Serialize and Deserialize Binary Tree completed	Serialize and Deserialize Binary Tree	Solve
Mark Single Number completed	Single Number	Solve
Mark Sort Colors completed	Sort Colors	Solve
Mark Spiral Matrix completed	Spiral Matrix	Solve
Mark String Compression completed	String Compression	Solve
Mark String to Integer (atoi) completed	String to Integer (atoi)	Solve
Mark Subsets completed	Subsets	Solve
Mark Sudoku Solver completed	Sudoku Solver	Solve
Mark Unique Paths completed	Unique Paths	Solve
Mark Valid Anagram completed	Valid Anagram	Solve
Mark Valid Sudoku completed	Valid Sudoku	Solve
Mark Word Break completed	Word Break	Solve
Mark Word Search II completed	Word Search II	Solve
Mark Zigzag Conversion completed	Zigzag Conversion	Solve
Mark 01 Matrix completed	01 Matrix	Solve
Mark 3Sum Closest completed	3Sum Closest	Solve
Mark 4Sum completed	4Sum	Solve
Mark Add Binary completed	Add Binary	Solve
Mark All Nodes Distance K in Binary Tree completed	All Nodes Distance K in Binary Tree	Solve
Mark Amount of Time for Binary Tree to Be Infected completed	Amount of Time for Binary Tree to Be Infected	Solve
Mark Article Views I completed	Article Views I	Solve
Mark Assign Cookies completed	Assign Cookies	Solve
Mark Average Time of Process per Machine completed	Average Time of Process per Machine	Solve
Mark Avoid Flood in The City completed	Avoid Flood in The City	Solve
Mark Basic Calculator completed	Basic Calculator	Solve
Mark Basic Calculator II completed	Basic Calculator II	Solve
Mark Binary Search completed	Binary Search	Solve
Mark Binary Tree Cameras completed	Binary Tree Cameras	Solve
Mark Binary Tree Inorder Traversal completed	Binary Tree Inorder Traversal	Solve
Mark Bus Routes completed	Bus Routes	Solve
Mark Cheapest Flights Within K Stops completed	Cheapest Flights Within K Stops	Solve
Mark Check if Array Is Sorted and Rotated completed	Check if Array Is Sorted and Rotated	Solve
Mark Combination Sum completed	Combination Sum	Solve
Mark Combinations completed	Combinations	Solve
Mark Confirmation Rate completed	Confirmation Rate	Solve
Mark Contains Duplicate II completed	Contains Duplicate II	Solve
Mark Convert Sorted Array to Binary Search Tree completed	Convert Sorted Array to Binary Search Tree	Solve
Mark Count Bowl Subarrays completed	Count Bowl Subarrays	Solve
Mark Count Primes completed	Count Primes	Solve
Mark Count Square Submatrices with All Ones completed	Count Square Submatrices with All Ones	Solve
Mark Count the Number of Substrings With Dominant Ones completed	Count the Number of Substrings With Dominant Ones	Solve
Mark Course Schedule III completed	Course Schedule III	Solve
Mark Create Hello World Function completed	Create Hello World Function	Solve
Mark Critical Connections in a Network completed	Critical Connections in a Network	Solve
Mark Decode String completed	Decode String	Solve
Mark Decode Ways completed	Decode Ways	Solve
Mark Delete Node in a Linked List completed	Delete Node in a Linked List	Solve
Mark Design Tic-Tac-Toe completed	Design Tic-Tac-Toe	Solve
Mark Diagonal Traverse completed	Diagonal Traverse	Solve
Mark Distinct Subsequences completed	Distinct Subsequences	Solve
Mark Divide Two Integers completed	Divide Two Integers	Solve
Mark Dungeon Game completed	Dungeon Game	Solve
Mark Employees Earning More Than Their Managers completed	Employees Earning More Than Their Managers	Solve
Mark Evaluate Reverse Polish Notation completed	Evaluate Reverse Polish Notation	Solve
Mark Exclusive Time of Functions completed	Exclusive Time of Functions	Solve
Mark Fibonacci Number completed	Fibonacci Number	Solve
Mark Find Customer Referee completed	Find Customer Referee	Solve
Mark Find Eventual Safe States completed	Find Eventual Safe States	Solve
Mark Find K Closest Elements completed	Find K Closest Elements	Solve
Mark Find K Pairs with Smallest Sums completed	Find K Pairs with Smallest Sums	Solve
Mark Find Minimum in Rotated Sorted Array completed	Find Minimum in Rotated Sorted Array	Solve
Mark Find the Celebrity completed	Find the Celebrity	Solve
Mark Find the Difference completed	Find the Difference	Solve
Mark Find the Median of the Uniqueness Array completed	Find the Median of the Uniqueness Array	Solve
Mark Find the Minimum Area to Cover All Ones II completed	Find the Minimum Area to Cover All Ones II	Solve
Mark Fizz Buzz completed	Fizz Buzz	Solve
Mark Frequency of the Most Frequent Element completed	Frequency of the Most Frequent Element	Solve
Mark Fruits Into Baskets II completed	Fruits Into Baskets II	Solve
Mark Furthest Building You Can Reach completed	Furthest Building You Can Reach	Solve
Mark Game of Life completed	Game of Life	Solve
Mark House Robber II completed	House Robber II	Solve
Mark Implement Stack using Queues completed	Implement Stack using Queues	Solve
Mark Integer to English Words completed	Integer to English Words	Solve
Mark Integer to Roman completed	Integer to Roman	Solve
Mark Invert Binary Tree completed	Invert Binary Tree	Solve
Mark Isomorphic Strings completed	Isomorphic Strings	Solve
Mark Kth Smallest Element in a BST completed	Kth Smallest Element in a BST	Solve
Mark Length of Last Word completed	Length of Last Word	Solve
Mark Lexicographically Minimum String After Removing Stars completed	Lexicographically Minimum String After Removing Stars	Solve
Mark Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit completed	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	Solve
Mark Longest Harmonious Subsequence completed	Longest Harmonious Subsequence	Solve
Mark Longest Increasing Subsequence completed	Longest Increasing Subsequence	Solve
Mark Longest Valid Parentheses completed	Longest Valid Parentheses	Solve
Mark Lowest Common Ancestor of a Binary Search Tree completed	Lowest Common Ancestor of a Binary Search Tree	Solve
Mark Majority Element II completed	Majority Element II	Solve
Mark Making A Large Island completed	Making A Large Island	Solve
Mark Managers with at Least 5 Direct Reports completed	Managers with at Least 5 Direct Reports	Solve
Mark Max Area of Island completed	Max Area of Island	Solve
Mark Max Consecutive Ones completed	Max Consecutive Ones	Solve
Mark Maximal Rectangle completed	Maximal Rectangle	Solve
Mark Maximal Square completed	Maximal Square	Solve
Mark Maximize Y‐Sum by Picking a Triplet of Distinct X‐Values completed	Maximize Y‐Sum by Picking a Triplet of Distinct X‐Values	Solve
Mark Maximum Depth of Binary Tree completed	Maximum Depth of Binary Tree	Solve
Mark Maximum Difference Between Increasing Elements completed	Maximum Difference Between Increasing Elements	Solve
Mark Maximum Erasure Value completed	Maximum Erasure Value	Solve
Mark Maximum Number of Events That Can Be Attended completed	Maximum Number of Events That Can Be Attended	Solve
Mark Maximum Points You Can Obtain from Cards completed	Maximum Points You Can Obtain from Cards	Solve
Mark Maximum Product Subarray completed	Maximum Product Subarray	Solve
Mark Maximum Subarray Sum with One Deletion completed	Maximum Subarray Sum with One Deletion	Solve
Mark Maximum Units on a Truck completed	Maximum Units on a Truck	Solve
Mark Maximum Width of Binary Tree completed	Maximum Width of Binary Tree	Solve
Mark Middle of the Linked List completed	Middle of the Linked List	Solve
Mark Min Cost to Connect All Points completed	Min Cost to Connect All Points	Solve
Mark Minimum Falling Path Sum completed	Minimum Falling Path Sum	Solve
Mark Minimum Number of Days to Make m Bouquets completed	Minimum Number of Days to Make m Bouquets	Solve
Mark Minimum Path Sum completed	Minimum Path Sum	Solve
Mark Minimum Size Subarray Sum completed	Minimum Size Subarray Sum	Solve
Mark Next Greater Element I completed	Next Greater Element I	Solve
Mark Non-overlapping Intervals completed	Non-overlapping Intervals	Solve
Mark Number of Connected Components in an Undirected Graph completed	Number of Connected Components in an Undirected Graph	Solve
Mark Number of Provinces completed	Number of Provinces	Solve
Mark Online Stock Span completed	Online Stock Span	Solve
Mark Open the Lock completed	Open the Lock	Solve
Mark Palindrome Linked List completed	Palindrome Linked List	Solve
Mark Palindrome Partitioning completed	Palindrome Partitioning	Solve
Mark Palindromic Substrings completed	Palindromic Substrings	Solve
Mark Partition Labels completed	Partition Labels	Solve
Mark Peak Index in a Mountain Array completed	Peak Index in a Mountain Array	Solve
Mark Permutation in String completed	Permutation in String	Solve
Mark Plates Between Candles completed	Plates Between Candles	Solve
Mark Pow(x, n) completed	Pow(x, n)	Solve
Mark Power of Three completed	Power of Three	Solve
Mark Power of Two completed	Power of Two	Solve
Mark Predict the Winner completed	Predict the Winner	Solve
Mark Process String with Special Operations I completed	Process String with Special Operations I	Solve
Mark Product Sales Analysis III completed	Product Sales Analysis III	Solve
Mark Random Pick with Weight completed	Random Pick with Weight	Solve
Mark Rank Scores completed	Rank Scores	Solve
Mark Ransom Note completed	Ransom Note	Solve
Mark Recover Binary Search Tree completed	Recover Binary Search Tree	Solve
Mark Remove Duplicates from Sorted Array II completed	Remove Duplicates from Sorted Array II	Solve
Mark Remove Duplicates from Sorted List completed	Remove Duplicates from Sorted List	Solve
Mark Remove K Digits completed	Remove K Digits	Solve
Mark Remove Nth Node From End of List completed	Remove Nth Node From End of List	Solve
Mark Reorder List completed	Reorder List	Solve
Mark Repeated Substring Pattern completed	Repeated Substring Pattern	Solve
Mark Replace Employee ID With The Unique Identifier completed	Replace Employee ID With The Unique Identifier	Solve
Mark Reverse Linked List II completed	Reverse Linked List II	Solve
Mark Reverse Pairs completed	Reverse Pairs	Solve
Mark Rising Temperature completed	Rising Temperature	Solve
Mark Rotate List completed	Rotate List	Solve
Mark Rotate String completed	Rotate String	Solve
Mark Russian Doll Envelopes completed	Russian Doll Envelopes	Solve
Mark Same Tree completed	Same Tree	Solve
Mark Search a 2D Matrix II completed	Search a 2D Matrix II	Solve
Mark Search Suggestions System completed	Search Suggestions System	Solve
Mark Second Highest Salary completed	Second Highest Salary	Solve
Mark Set Matrix Zeroes completed	Set Matrix Zeroes	Solve
Mark Simplify Path completed	Simplify Path	Solve
Mark Single Number II completed	Single Number II	Solve
Mark Snakes and Ladders completed	Snakes and Ladders	Solve
Mark Sort List completed	Sort List	Solve
Mark Split Array Largest Sum completed	Split Array Largest Sum	Solve
Mark Sqrt(x) completed	Sqrt(x)	Solve
Mark Subarrays with K Different Integers completed	Subarrays with K Different Integers	Solve
Mark Subsets II completed	Subsets II	Solve
Mark Substring with Concatenation of All Words completed	Substring with Concatenation of All Words	Solve
Mark Sum of Subarray Minimums completed	Sum of Subarray Minimums	Solve
Mark Sum of Subarray Ranges completed	Sum of Subarray Ranges	Solve
Mark Surrounded Regions completed	Surrounded Regions	Solve
Mark Swim in Rising Water completed	Swim in Rising Water	Solve
Mark Target Sum completed	Target Sum	Solve
Mark Task Scheduler completed	Task Scheduler	Solve
Mark Text Justification completed	Text Justification	Solve
Mark Time Based Key-Value Store completed	Time Based Key-Value Store	Solve
Mark Top K Frequent Words completed	Top K Frequent Words	Solve
Mark Trapping Rain Water II completed	Trapping Rain Water II	Solve
Mark Triangle completed	Triangle	Solve
Mark Two Sum II - Input Array Is Sorted completed	Two Sum II - Input Array Is Sorted	Solve
Mark Unique Binary Search Trees completed	Unique Binary Search Trees	Solve
Mark Unique Number of Occurrences completed	Unique Number of Occurrences	Solve
Mark Valid Palindrome completed	Valid Palindrome	Solve
Mark Valid Palindrome II completed	Valid Palindrome II	Solve
Mark Valid Triangle Number completed	Valid Triangle Number	Solve
Mark Validate Binary Search Tree completed	Validate Binary Search Tree	Solve
Mark Vertical Order Traversal of a Binary Tree completed	Vertical Order Traversal of a Binary Tree	Solve
Mark Word Break II completed	Word Break II	Solve
Mark 2 Keys Keyboard completed	2 Keys Keyboard	Solve
Mark Accounts Merge completed	Accounts Merge	Solve
Mark Add Digits completed	Add Digits	Solve
Mark Add Strings completed	Add Strings	Solve
Mark Add Two Integers completed	Add Two Integers	Solve
Mark Add Two Numbers II completed	Add Two Numbers II	Solve
Mark Alien Dictionary completed	Alien Dictionary	Solve
Mark All O`one Data Structure completed	All O`one Data Structure	Solve
Mark All Paths From Source to Target completed	All Paths From Source to Target	Solve
Mark Arranging Coins completed	Arranging Coins	Solve
Mark Array Partition completed	Array Partition	Solve
Mark Average Selling Price completed	Average Selling Price	Solve
Mark Base 7 completed	Base 7	Solve
Mark Basic Calculator III completed	Basic Calculator III	Solve
Mark Best Poker Hand completed	Best Poker Hand	Solve
Mark Big Countries completed	Big Countries	Solve
Mark Binary Search Tree Iterator completed	Binary Search Tree Iterator	Solve
Mark Binary Subarrays With Sum completed	Binary Subarrays With Sum	Solve
Mark Binary Tree Vertical Order Traversal completed	Binary Tree Vertical Order Traversal	Solve
Mark Boats to Save People completed	Boats to Save People	Solve
Mark Build Array from Permutation completed	Build Array from Permutation	Solve
Mark Bulb Switcher completed	Bulb Switcher	Solve
Mark Burst Balloons completed	Burst Balloons	Solve
Mark Can I Win completed	Can I Win	Solve
Mark Can Place Flowers completed	Can Place Flowers	Solve
Mark Car Fleet completed	Car Fleet	Solve
Mark Clone Graph completed	Clone Graph	Solve
Mark Coin Change II completed	Coin Change II	Solve
Mark Combination Sum II completed	Combination Sum II	Solve
Mark Combination Sum III completed	Combination Sum III	Solve
Mark Consecutive Numbers completed	Consecutive Numbers	Solve
Mark Construct Binary Search Tree from Preorder Traversal completed	Construct Binary Search Tree from Preorder Traversal	Solve
Mark Contiguous Array completed	Contiguous Array	Solve
Mark Convert Integer to the Sum of Two No-Zero Integers completed	Convert Integer to the Sum of Two No-Zero Integers	Solve
Mark Count and Say completed	Count and Say	Solve
Mark Count Binary Substrings completed	Count Binary Substrings	Solve
Mark Count Elements With Maximum Frequency completed	Count Elements With Maximum Frequency	Solve
Mark Count Good Numbers completed	Count Good Numbers	Solve
Mark Count Hills and Valleys in an Array completed	Count Hills and Valleys in an Array	Solve
Mark Count Number of Rectangles Containing Each Point completed	Count Number of Rectangles Containing Each Point	Solve
Mark Count Subarrays With Median K completed	Count Subarrays With Median K	Solve
Mark Count Unreachable Pairs of Nodes in an Undirected Graph completed	Count Unreachable Pairs of Nodes in an Undirected Graph	Solve
Mark Count Zero Request Servers completed	Count Zero Request Servers	Solve
Mark Customer Who Visited but Did Not Make Any Transactions completed	Customer Who Visited but Did Not Make Any Transactions	Solve
Mark Customers Who Bought All Products completed	Customers Who Bought All Products	Solve
Mark Defanging an IP Address completed	Defanging an IP Address	Solve
Mark Delete and Earn completed	Delete and Earn	Solve
Mark Delete Duplicate Emails completed	Delete Duplicate Emails	Solve
Mark Delete Node in a BST completed	Delete Node in a BST	Solve
Mark Delete Nodes From Linked List Present in Array completed	Delete Nodes From Linked List Present in Array	Solve
Mark Department Top Three Salaries completed	Department Top Three Salaries	Solve
Mark Design Add and Search Words Data Structure completed	Design Add and Search Words Data Structure	Solve
Mark Design Circular Queue completed	Design Circular Queue	Solve
Mark Design File System completed	Design File System	Solve
Mark Design Hit Counter completed	Design Hit Counter	Solve
Mark Design In-Memory File System completed	Design In-Memory File System	Solve
Mark Design Linked List completed	Design Linked List	Solve
Mark Design Parking System completed	Design Parking System	Solve
Mark Design Search Autocomplete System completed	Design Search Autocomplete System	Solve
Mark Design Task Manager completed	Design Task Manager	Solve
Mark Design Twitter completed	Design Twitter	Solve
Mark Detonate the Maximum Bombs completed	Detonate the Maximum Bombs	Solve
Mark Distribute Coins in Binary Tree completed	Distribute Coins in Binary Tree	Solve
Mark Divisible and Non-divisible Sums Difference completed	Divisible and Non-divisible Sums Difference	Solve
Mark Escape the Spreading Fire completed	Escape the Spreading Fire	Solve
Mark Even Odd Tree completed	Even Odd Tree	Solve
Mark Excel Sheet Column Title completed	Excel Sheet Column Title	Solve
Mark Exchange Seats completed	Exchange Seats	Solve
Mark Factorial Trailing Zeroes completed	Factorial Trailing Zeroes	Solve
Mark Filter Elements from Array completed	Filter Elements from Array	Solve
Mark Find All Anagrams in a String completed	Find All Anagrams in a String	Solve
Mark Find All K-Distant Indices in an Array completed	Find All K-Distant Indices in an Array	Solve
Mark Find All Possible Recipes from Given Supplies completed	Find All Possible Recipes from Given Supplies	Solve
Mark Find Duplicate File in System completed	Find Duplicate File in System	Solve
Mark Find if Path Exists in Graph completed	Find if Path Exists in Graph	Solve
Mark Find Missing and Repeated Values completed	Find Missing and Repeated Values	Solve
Mark Find N Unique Integers Sum up to Zero completed	Find N Unique Integers Sum up to Zero	Solve
Mark Find Pivot Index completed	Find Pivot Index	Solve
Mark Find Smallest Letter Greater Than Target completed	Find Smallest Letter Greater Than Target	Solve
Mark Find the Highest Altitude completed	Find the Highest Altitude	Solve
Mark Find the K-Sum of an Array completed	Find the K-Sum of an Array	Solve
Mark Find the K-th Character in String Game II completed	Find the K-th Character in String Game II	Solve
Mark Find the Maximum Achievable Number completed	Find the Maximum Achievable Number	Solve
Mark Find the Maximum Length of Valid Subsequence I completed	Find the Maximum Length of Valid Subsequence I	Solve
Mark Find the Maximum Length of Valid Subsequence II completed	Find the Maximum Length of Valid Subsequence II	Solve
Mark Find the Minimum Amount of Time to Brew Potions completed	Find the Minimum Amount of Time to Brew Potions	Solve
Mark Find the Minimum Area to Cover All Ones I completed	Find the Minimum Area to Cover All Ones I	Solve
Mark Find the Number of Ways to Place People I completed	Find the Number of Ways to Place People I	Solve
Mark Find the Original Typed String I completed	Find the Original Typed String I	Solve
Mark Find the Original Typed String II completed	Find the Original Typed String II	Solve
Mark Find the Smallest Divisor Given a Threshold completed	Find the Smallest Divisor Given a Threshold	Solve
Mark Find Triangular Sum of an Array completed	Find Triangular Sum of an Array	Solve
Mark Find X-Sum of All K-Long Subarrays I completed	Find X-Sum of All K-Long Subarrays I	Solve
Mark First Bad Version completed	First Bad Version	Solve
Mark Flatten a Multilevel Doubly Linked List completed	Flatten a Multilevel Doubly Linked List	Solve
Mark Flatten Binary Tree to Linked List completed	Flatten Binary Tree to Linked List	Solve
Mark Flatten Nested List Iterator completed	Flatten Nested List Iterator	Solve
Mark Flip String to Monotone Increasing completed	Flip String to Monotone Increasing	Solve
Mark Fraction to Recurring Decimal completed	Fraction to Recurring Decimal	Solve
Mark Frog Jump completed	Frog Jump	Solve
Mark Fruits Into Baskets III completed	Fruits Into Baskets III	Solve
Mark GCD Sort of an Array completed	GCD Sort of an Array	Solve
Mark H-Index completed	H-Index	Solve
Mark Heaters completed	Heaters	Solve
Mark How Many Numbers Are Smaller Than the Current Number completed	How Many Numbers Are Smaller Than the Current Number	Solve
Mark Immediate Food Delivery II completed	Immediate Food Delivery II	Solve
Mark Implement Trie (Prefix Tree) completed	Implement Trie (Prefix Tree)	Solve
Mark Insert Delete GetRandom O(1) - Duplicates allowed completed	Insert Delete GetRandom O(1) - Duplicates allowed	Solve
Mark Insert Interval completed	Insert Interval	Solve
Mark Insertion Sort List completed	Insertion Sort List	Solve
Mark Intersection of Two Linked Lists completed	Intersection of Two Linked Lists	Solve
Mark Investments in 2016 completed	Investments in 2016	Solve
Mark Is Graph Bipartite? completed	Is Graph Bipartite?	Solve
Mark Is Subsequence completed	Is Subsequence	Solve
Mark Island Perimeter completed	Island Perimeter	Solve
Mark Jewels and Stones completed	Jewels and Stones	Solve
Mark K Closest Points to Origin completed	K Closest Points to Origin	Solve
Mark K-th Symbol in Grammar completed	K-th Symbol in Grammar	Solve
Mark Keys and Rooms completed	Keys and Rooms	Solve
Mark Kids With the Greatest Number of Candies completed	Kids With the Greatest Number of Candies	Solve
Mark Kth Largest Element in a Stream completed	Kth Largest Element in a Stream	Solve
Mark Kth Missing Positive Number completed	Kth Missing Positive Number	Solve
Mark Kth Smallest Product of Two Sorted Arrays completed	Kth Smallest Product of Two Sorted Arrays	Solve
Mark Largest Triangle Area completed	Largest Triangle Area	Solve
Mark Last Stone Weight completed	Last Stone Weight	Solve
Mark Lemonade Change completed	Lemonade Change	Solve
Mark Length of Longest V-Shaped Diagonal Segment completed	Length of Longest V-Shaped Diagonal Segment	Solve
Mark Lexicographically Smallest Equivalent String completed	Lexicographically Smallest Equivalent String	Solve
Mark Lexicographically Smallest Permutation Greater Than Target completed	Lexicographically Smallest Permutation Greater Than Target	Solve
Mark Linked List Cycle II completed	Linked List Cycle II	Solve
Mark Logger Rate Limiter completed	Logger Rate Limiter	Solve
Mark Longest Common Subsequence completed	Longest Common Subsequence	Solve
Mark Longest Increasing Path in a Matrix completed	Longest Increasing Path in a Matrix	Solve
Mark Longest Non-decreasing Subarray From Two Arrays completed	Longest Non-decreasing Subarray From Two Arrays	Solve
Mark Longest Palindrome completed	Longest Palindrome	Solve
Mark Lowest Common Ancestor of a Binary Tree III completed	Lowest Common Ancestor of a Binary Tree III	Solve
Mark Magnetic Force Between Two Balls completed	Magnetic Force Between Two Balls	Solve
Mark Make Array Elements Equal to Zero completed	Make Array Elements Equal to Zero	Solve
Mark Max Difference You Can Get From Changing an Integer completed	Max Difference You Can Get From Changing an Integer	Solve
Mark Maximize Subarrays After Removing One Conflicting Pair completed	Maximize Subarrays After Removing One Conflicting Pair	Solve
Mark Maximum Average Pass Ratio completed	Maximum Average Pass Ratio	Solve
Mark Maximum Average Subarray I completed	Maximum Average Subarray I	Solve
Mark Maximum Balanced Shipments completed	Maximum Balanced Shipments	Solve
Mark Maximum Frequency of an Element After Performing Operations I completed	Maximum Frequency of an Element After Performing Operations I	Solve
Mark Maximum Frequency Stack completed	Maximum Frequency Stack	Solve
Mark Maximum Length of Repeated Subarray completed	Maximum Length of Repeated Subarray	Solve
Mark Maximum Number of Distinct Elements After Operations completed	Maximum Number of Distinct Elements After Operations	Solve
Mark Maximum Number of Events That Can Be Attended II completed	Maximum Number of Events That Can Be Attended II	Solve
Mark Maximum Number of Operations to Move Ones to the End completed	Maximum Number of Operations to Move Ones to the End	Solve
Mark Maximum Sum BST in Binary Tree completed	Maximum Sum BST in Binary Tree	Solve
Mark Maximum Sum of Distinct Subarrays With Length K completed	Maximum Sum of Distinct Subarrays With Length K	Solve
Mark Maximum Tastiness of Candy Basket completed	Maximum Tastiness of Candy Basket	Solve
Mark Maximum Total Damage With Spell Casting completed	Maximum Total Damage With Spell Casting	Solve
Mark Maximum Total from Optimal Activation Order completed	Maximum Total from Optimal Activation Order	Solve
Mark Maximum Unique Subarray Sum After Deletion completed	Maximum Unique Subarray Sum After Deletion	Solve
Mark Meeting Rooms completed	Meeting Rooms	Solve
Mark Meeting Rooms III completed	Meeting Rooms III	Solve
Mark Merge Strings Alternately completed	Merge Strings Alternately	Solve
Mark Min Cost Climbing Stairs completed	Min Cost Climbing Stairs	Solve
Mark Minimize the Maximum Difference of Pairs completed	Minimize the Maximum Difference of Pairs	Solve
Mark Minimum Add to Make Parentheses Valid completed	Minimum Add to Make Parentheses Valid	Solve
Mark Minimum Cost to Reach Destination in Time completed	Minimum Cost to Reach Destination in Time	Solve
Mark Minimum Difference Between Highest and Lowest of K Scores completed	Minimum Difference Between Highest and Lowest of K Scores	Solve
Mark Minimum Difference in Sums After Removal of Elements completed	Minimum Difference in Sums After Removal of Elements	Solve
Mark Minimum Equal Sum of Two Arrays After Replacing Zeros completed	Minimum Equal Sum of Two Arrays After Replacing Zeros	Solve
Mark Minimum Height Trees completed	Minimum Height Trees	Solve
Mark Minimum Insertion Steps to Make a String Palindrome completed	Minimum Insertion Steps to Make a String Palindrome	Solve
Mark Minimum Number of People to Teach completed	Minimum Number of People to Teach	Solve
Mark Minimum Operations to Convert All Elements to Zero completed	Minimum Operations to Convert All Elements to Zero	Solve
Mark Minimum Operations to Make the Integer Zero completed	Minimum Operations to Make the Integer Zero	Solve
Mark Minimum Operations to Reduce an Integer to 0 completed	Minimum Operations to Reduce an Integer to 0	Solve
Mark Minimum Operations to Reduce X to Zero completed	Minimum Operations to Reduce X to Zero	Solve
Mark Minimum Score Triangulation of Polygon completed	Minimum Score Triangulation of Polygon	Solve
Mark Minimum Time to Complete Trips completed	Minimum Time to Complete Trips	Solve
Mark Mirror Reflection completed	Mirror Reflection	Solve
Mark Monthly Transactions I completed	Monthly Transactions I	Solve
Mark Most Stones Removed with Same Row or Column completed	Most Stones Removed with Same Row or Column	Solve
Mark Movie Rating completed	Movie Rating	Solve
Mark Multiply Strings completed	Multiply Strings	Solve
Mark N-Queens II completed	N-Queens II	Solve
Mark N-th Tribonacci Number completed	N-th Tribonacci Number	Solve
Mark New 21 Game completed	New 21 Game	Solve
Mark Next Greater Element III completed	Next Greater Element III	Solve
Mark Nth Highest Salary completed	Nth Highest Salary	Solve
Mark Nth Magical Number completed	Nth Magical Number	Solve
Mark Number of 1 Bits completed	Number of 1 Bits	Solve
Mark Number of Atoms completed	Number of Atoms	Solve
Mark Number of Digit One completed	Number of Digit One	Solve
Mark Number of Operations to Make Network Connected completed	Number of Operations to Make Network Connected	Solve
Mark Number of People Aware of a Secret completed	Number of People Aware of a Secret	Solve
Mark Number of Recent Calls completed	Number of Recent Calls	Solve
Mark Number of Subsequences That Satisfy the Given Sum Condition completed	Number of Subsequences That Satisfy the Given Sum Condition	Solve
Mark Number of Zero-Filled Subarrays completed	Number of Zero-Filled Subarrays	Solve
Mark Out of Boundary Paths completed	Out of Boundary Paths	Solve
Mark Palindrome Partitioning II completed	Palindrome Partitioning II	Solve
Mark Partition List completed	Partition List	Solve
Mark Path Sum completed	Path Sum	Solve
Mark Path Sum II completed	Path Sum II	Solve
Mark Percentage of Users Attended a Contest completed	Percentage of Users Attended a Contest	Solve
Mark Perfect Number completed	Perfect Number	Solve
Mark Permutations II completed	Permutations II	Solve
Mark Plus One completed	Plus One	Solve
Mark Possible Bipartition completed	Possible Bipartition	Solve
Mark Power Grid Maintenance completed	Power Grid Maintenance	Solve
Mark Power of Four completed	Power of Four	Solve
Mark Primary Department for Each Employee completed	Primary Department for Each Employee	Solve
Mark Queries Quality and Percentage completed	Queries Quality and Percentage	Solve
Mark Range Product Queries of Powers completed	Range Product Queries of Powers	Solve
Mark Range Sum Query - Immutable completed	Range Sum Query - Immutable	Solve
Mark Range Sum Query 2D - Immutable completed	Range Sum Query 2D - Immutable	Solve
Mark Rearrange Array Elements by Sign completed	Rearrange Array Elements by Sign	Solve
Mark Reconstruct Itinerary completed	Reconstruct Itinerary	Solve
Mark Remove All Adjacent Duplicates In String completed	Remove All Adjacent Duplicates In String	Solve
Mark Remove All Adjacent Duplicates in String II completed	Remove All Adjacent Duplicates in String II	Solve
Mark Remove Duplicate Letters completed	Remove Duplicate Letters	Solve
Mark Remove Linked List Elements completed	Remove Linked List Elements	Solve
Mark Removing Stars From a String completed	Removing Stars From a String	Solve
Mark Reordered Power of 2 completed	Reordered Power of 2	Solve
Mark Reschedule Meetings for Maximum Free Time I completed	Reschedule Meetings for Maximum Free Time I	Solve
Mark Restaurant Growth completed	Restaurant Growth	Solve
Mark Reverse String completed	Reverse String	Solve
Mark Reverse Vowels of a String completed	Reverse Vowels of a String	Solve
Mark Reverse Words in a String III completed	Reverse Words in a String III	Solve
Mark Row With Maximum Ones completed	Row With Maximum Ones	Solve
Mark Running Sum of 1d Array completed	Running Sum of 1d Array	Solve
Mark Score of a String completed	Score of a String	Solve
Mark Scramble String completed	Scramble String	Solve
Mark Search in a Binary Search Tree completed	Search in a Binary Search Tree	Solve
Mark Search in Rotated Sorted Array II completed	Search in Rotated Sorted Array II	Solve
Mark Set Mismatch completed	Set Mismatch	Solve
Mark Shortest Common Supersequence completed	Shortest Common Supersequence	Solve
Mark Shortest Distance from All Buildings completed	Shortest Distance from All Buildings	Solve
Mark Shortest Palindrome completed	Shortest Palindrome	Solve
Mark Shortest Path in Binary Matrix completed	Shortest Path in Binary Matrix	Solve
Mark Shortest Path with Alternating Colors completed	Shortest Path with Alternating Colors	Solve
Mark Shortest Subarray with Sum at Least K completed	Shortest Subarray with Sum at Least K	Solve
Mark Shortest Unsorted Continuous Subarray completed	Shortest Unsorted Continuous Subarray	Solve
Mark Smallest Missing Non-negative Integer After Operations completed	Smallest Missing Non-negative Integer After Operations	Solve
Mark Smallest Number in Infinite Set completed	Smallest Number in Infinite Set	Solve
Mark Smallest Range Covering Elements from K Lists completed	Smallest Range Covering Elements from K Lists	Solve
Mark Smallest Subsequence of Distinct Characters completed	Smallest Subsequence of Distinct Characters	Solve
Mark Sort Array By Parity completed	Sort Array By Parity	Solve
Mark Sort Characters By Frequency completed	Sort Characters By Frequency	Solve
Mark Sort Matrix by Diagonals completed	Sort Matrix by Diagonals	Solve
Mark Soup Servings completed	Soup Servings	Solve
Mark Spiral Matrix II completed	Spiral Matrix II	Solve
Mark Squares of a Sorted Array completed	Squares of a Sorted Array	Solve
Mark Step-By-Step Directions From a Binary Tree Node to Another completed	Step-By-Step Directions From a Binary Tree Node to Another	Solve
Mark Subarray Product Less Than K completed	Subarray Product Less Than K	Solve
Mark Subarray Sums Divisible by K completed	Subarray Sums Divisible by K	Solve
Mark Successful Pairs of Spells and Potions completed	Successful Pairs of Spells and Potions	Solve
Mark Sum of Beauty of All Substrings completed	Sum of Beauty of All Substrings	Solve
Mark Sum of Two Integers completed	Sum of Two Integers	Solve
Mark Sum of Unique Elements completed	Sum of Unique Elements	Solve
Mark Sum Root to Leaf Numbers completed	Sum Root to Leaf Numbers	Solve
Mark Summary Ranges completed	Summary Ranges	Solve
Mark Swap Nodes in Pairs completed	Swap Nodes in Pairs	Solve
Mark Swapping Nodes in a Linked List completed	Swapping Nodes in a Linked List	Solve
Mark Symmetric Tree completed	Symmetric Tree	Solve
Mark Taking Maximum Energy From the Mystic Dungeon completed	Taking Maximum Energy From the Mystic Dungeon	Solve
Mark The Number of Employees Which Report to Each Employee completed	The Number of Employees Which Report to Each Employee	Solve
Mark To Be Or Not To Be completed	To Be Or Not To Be	Solve
Mark Transpose Matrix completed	Transpose Matrix	Solve
Mark Ugly Number completed	Ugly Number	Solve
Mark Unique Binary Search Trees II completed	Unique Binary Search Trees II	Solve
Mark Unique Paths II completed	Unique Paths II	Solve
Mark User Activity for the Past 30 Days I completed	User Activity for the Past 30 Days I	Solve
Mark Using a Robot to Print the Lexicographically Smallest String completed	Using a Robot to Print the Lexicographically Smallest String	Solve
Mark Valid Number completed	Valid Number	Solve
Mark Valid Parenthesis String completed	Valid Parenthesis String	Solve
Mark Valid Word completed	Valid Word	Solve
Mark Valid Word Abbreviation completed	Valid Word Abbreviation	Solve
Mark Vowel Spellchecker completed	Vowel Spellchecker	Solve
Mark Ways to Express an Integer as Sum of Powers completed	Ways to Express an Integer as Sum of Powers	Solve
Mark Wildcard Matching completed	Wildcard Matching	Solve
Mark Word Pattern completed	Word Pattern	Solve
Mark All Ancestors of a Node in a Directed Acyclic Graph completed	All Ancestors of a Node in a Directed Acyclic Graph	Solve
Mark Angle Between Hands of a Clock completed	Angle Between Hands of a Clock	Solve
Mark Apply Discount to Prices completed	Apply Discount to Prices	Solve
Mark Array Prototype Last completed	Array Prototype Last	Solve
Mark Average of Levels in Binary Tree completed	Average of Levels in Binary Tree	Solve
Mark Backspace String Compare completed	Backspace String Compare	Solve
Mark Best Meeting Point completed	Best Meeting Point	Solve
Mark Best Time to Buy and Sell Stock III completed	Best Time to Buy and Sell Stock III	Solve
Mark Best Time to Buy and Sell Stock V completed	Best Time to Buy and Sell Stock V	Solve
Mark Binary Search Tree to Greater Sum Tree completed	Binary Search Tree to Greater Sum Tree	Solve
Mark Bitwise AND of Numbers Range completed	Bitwise AND of Numbers Range	Solve
Mark Bulls and Cows completed	Bulls and Cows	Solve
Mark Buy Two Chocolates completed	Buy Two Chocolates	Solve
Mark Cache With Time Limit completed	Cache With Time Limit	Solve
Mark Car Pooling completed	Car Pooling	Solve
Mark Check if All Characters Have Equal Number of Occurrences completed	Check if All Characters Have Equal Number of Occurrences	Solve
Mark Check If N and Its Double Exist completed	Check If N and Its Double Exist	Solve
Mark Cherry Pickup completed	Cherry Pickup	Solve
Mark Compare Version Numbers completed	Compare Version Numbers	Solve
Mark Concatenation of Array completed	Concatenation of Array	Solve
Mark Construct Binary Tree from Inorder and Postorder Traversal completed	Construct Binary Tree from Inorder and Postorder Traversal	Solve
Mark Contains Duplicate III completed	Contains Duplicate III	Solve
Mark Continuous Subarray Sum completed	Continuous Subarray Sum	Solve
Mark Convert BST to Greater Tree completed	Convert BST to Greater Tree	Solve
Mark Count Complete Subarrays in an Array completed	Count Complete Subarrays in an Array	Solve
Mark Count Nodes Equal to Average of Subtree completed	Count Nodes Equal to Average of Subtree	Solve
Mark Count Number of Nice Subarrays completed	Count Number of Nice Subarrays	Solve
Mark Count Subarrays of Length Three With a Condition completed	Count Subarrays of Length Three With a Condition	Solve
Mark Count Submatrices With All Ones completed	Count Submatrices With All Ones	Solve
Mark Count Vowel Substrings of a String completed	Count Vowel Substrings of a String	Solve
Mark Counter completed	Counter	Solve
Mark Create a DataFrame from List completed	Create a DataFrame from List	Solve
Mark Defuse the Bomb completed	Defuse the Bomb	Solve
Mark Degree of an Array completed	Degree of an Array	Solve
Mark Delete Greatest Value in Each Row completed	Delete Greatest Value in Each Row	Solve
Mark Department Highest Salary completed	Department Highest Salary	Solve
Mark Design Browser History completed	Design Browser History	Solve
Mark Design Excel Sum Formula completed	Design Excel Sum Formula	Solve
Mark Design HashMap completed	Design HashMap	Solve
Mark Distribute Candies Among Children II completed	Distribute Candies Among Children II	Solve
Mark Divisor Game completed	Divisor Game	Solve
Mark Duplicate Emails completed	Duplicate Emails	Solve
Mark Employee Free Time completed	Employee Free Time	Solve
Mark Encode and Decode Strings completed	Encode and Decode Strings	Solve
Mark Excel Sheet Column Number completed	Excel Sheet Column Number	Solve
Mark Final Value of Variable After Performing Operations completed	Final Value of Variable After Performing Operations	Solve
Mark Find a Peak Element II completed	Find a Peak Element II	Solve
Mark Find All Duplicates in an Array completed	Find All Duplicates in an Array	Solve
Mark Find All Numbers Disappeared in an Array completed	Find All Numbers Disappeared in an Array	Solve
Mark Find Closest Person completed	Find Closest Person	Solve
Mark Find Common Characters completed	Find Common Characters	Solve
Mark Find in Mountain Array completed	Find in Mountain Array	Solve
Mark Find Lucky Integer in an Array completed	Find Lucky Integer in an Array	Solve
Mark Find Most Frequent Vowel and Consonant completed	Find Most Frequent Vowel and Consonant	Solve
Mark Find Numbers with Even Number of Digits completed	Find Numbers with Even Number of Digits	Solve
Mark Find Resultant Array After Removing Anagrams completed	Find Resultant Array After Removing Anagrams	Solve
Mark Find Subsequence of Length K With the Largest Sum completed	Find Subsequence of Length K With the Largest Sum	Solve
Mark Find the K-th Character in String Game I completed	Find the K-th Character in String Game I	Solve
Mark Find the Lexicographically Largest String From the Box I completed	Find the Lexicographically Largest String From the Box I	Solve
Mark Find the Town Judge completed	Find the Town Judge	Solve
Mark Find Valid Pair of Adjacent Digits in String completed	Find Valid Pair of Adjacent Digits in String	Solve
Mark Finding the Users Active Minutes completed	Finding the Users Active Minutes	Solve
Mark Fix Names in a Table completed	Fix Names in a Table	Solve
Mark Game Play Analysis I completed	Game Play Analysis I	Solve
Mark Game Play Analysis IV completed	Game Play Analysis IV	Solve
Mark Gray Code completed	Gray Code	Solve
Mark Greatest Common Divisor of Strings completed	Greatest Common Divisor of Strings	Solve
Mark Hamming Distance completed	Hamming Distance	Solve
Mark Human Traffic of Stadium completed	Human Traffic of Stadium	Solve
Mark Image Smoother completed	Image Smoother	Solve
Mark Implement Queue using Stacks completed	Implement Queue using Stacks	Solve
Mark Increasing Triplet Subsequence completed	Increasing Triplet Subsequence	Solve
Mark Insert into a Binary Search Tree completed	Insert into a Binary Search Tree	Solve
Mark Invalid Transactions completed	Invalid Transactions	Solve
Mark Invalid Tweets completed	Invalid Tweets	Solve
Mark Jump Game III completed	Jump Game III	Solve
Mark K-th Smallest in Lexicographical Order completed	K-th Smallest in Lexicographical Order	Solve
Mark Largest Divisible Subset completed	Largest Divisible Subset	Solve
Mark Largest Positive Integer That Exists With Its Negative completed	Largest Positive Integer That Exists With Its Negative	Solve
Mark Last Day Where You Can Still Cross completed	Last Day Where You Can Still Cross	Solve
Mark Last Person to Fit in the Bus completed	Last Person to Fit in the Bus	Solve
Mark Last Stone Weight II completed	Last Stone Weight II	Solve
Mark Leaf-Similar Trees completed	Leaf-Similar Trees	Solve
Mark Lexicographical Numbers completed	Lexicographical Numbers	Solve
Mark Lexicographically Smallest String After Applying Operations completed	Lexicographically Smallest String After Applying Operations	Solve
Mark Longest Common Prefix Between Adjacent Strings After Removals completed	Longest Common Prefix Between Adjacent Strings After Removals	Solve
Mark Longest Palindromic Subsequence completed	Longest Palindromic Subsequence	Solve
Mark Longest String Chain completed	Longest String Chain	Solve
Mark Longest Subarray of 1's After Deleting One Element completed	Longest Subarray of 1's After Deleting One Element	Solve
Mark Longest Subarray With Maximum Bitwise AND completed	Longest Subarray With Maximum Bitwise AND	Solve
Mark Longest Substring with At Least K Repeating Characters completed	Longest Substring with At Least K Repeating Characters	Solve
Mark Loud and Rich completed	Loud and Rich	Solve
Mark Make The String Great completed	Make The String Great	Solve
Mark Max Stack completed	Max Stack	Solve
Mark Maximize Distance to Closest Person completed	Maximize Distance to Closest Person	Solve
Mark Maximize the Minimum Powered City completed	Maximize the Minimum Powered City	Solve
Mark Maximum 69 Number completed	Maximum 69 Number	Solve
Mark Maximum Alternating Subarray Sum completed	Maximum Alternating Subarray Sum	Solve
Mark Maximum and Minimum Sums of at Most Size K Subsequences completed	Maximum and Minimum Sums of at Most Size K Subsequences	Solve
Mark Maximum Beauty of an Array After Applying Operation completed	Maximum Beauty of an Array After Applying Operation	Solve
Mark Maximum Candies Allocated to K Children completed	Maximum Candies Allocated to K Children	Solve
Mark Maximum Difference Between Adjacent Elements in a Circular Array completed	Maximum Difference Between Adjacent Elements in a Circular Array	Solve
Mark Maximum Difference Between Even and Odd Frequency I completed	Maximum Difference Between Even and Odd Frequency I	Solve
Mark Maximum Difference by Remapping a Digit completed	Maximum Difference by Remapping a Digit	Solve
Mark Maximum Fruits Harvested After at Most K Steps completed	Maximum Fruits Harvested After at Most K Steps	Solve
Mark Maximum Length of Pair Chain completed	Maximum Length of Pair Chain	Solve
Mark Maximum Number of Vowels in a Substring of Given Length completed	Maximum Number of Vowels in a Substring of Given Length	Solve
Mark Maximum Number of Words Found in Sentences completed	Maximum Number of Words Found in Sentences	Solve
Mark Maximum Score From Removing Substrings completed	Maximum Score From Removing Substrings	Solve
Mark Maximum Size of a Set After Removals completed	Maximum Size of a Set After Removals	Solve
Mark Maximum XOR of Two Numbers in an Array completed	Maximum XOR of Two Numbers in an Array	Solve
Mark Minimize the Maximum Adjacent Element Difference completed	Minimize the Maximum Adjacent Element Difference	Solve
Mark Minimized Maximum of Products Distributed to Any Store completed	Minimized Maximum of Products Distributed to Any Store	Solve
Mark Minimum Cost For Tickets completed	Minimum Cost For Tickets	Solve
Mark Minimum Cost to Connect Sticks completed	Minimum Cost to Connect Sticks	Solve
Mark Minimum Cost to Move Chips to The Same Position completed	Minimum Cost to Move Chips to The Same Position	Solve
Mark Minimum Deletions to Make Character Frequencies Unique completed	Minimum Deletions to Make Character Frequencies Unique	Solve
Mark Minimum Depth of Binary Tree completed	Minimum Depth of Binary Tree	Solve
Mark Minimum Difficulty of a Job Schedule completed	Minimum Difficulty of a Job Schedule	Solve
Mark Minimum Distance Between BST Nodes completed	Minimum Distance Between BST Nodes	Solve
Mark Minimum Fuel Cost to Report to the Capital completed	Minimum Fuel Cost to Report to the Capital	Solve
Mark Minimum Genetic Mutation completed	Minimum Genetic Mutation	Solve
Mark Minimum Length of String After Deleting Similar Ends completed	Minimum Length of String After Deleting Similar Ends	Solve
Mark Minimum Limit of Balls in a Bag completed	Minimum Limit of Balls in a Bag	Solve
Mark Minimum Moves to Equal Array Elements completed	Minimum Moves to Equal Array Elements	Solve
Mark Minimum Number of Arrows to Burst Balloons completed	Minimum Number of Arrows to Burst Balloons	Solve
Mark Minimum Number of Groups to Create a Valid Assignment completed	Minimum Number of Groups to Create a Valid Assignment	Solve
Mark Minimum Number of Increments on Subarrays to Form a Target Array completed	Minimum Number of Increments on Subarrays to Form a Target Array	Solve
Mark Minimum Number of Moves to Make Palindrome completed	Minimum Number of Moves to Make Palindrome	Solve
Mark Minimum Number of Operations to Make All Array Elements Equal to 1 completed	Minimum Number of Operations to Make All Array Elements Equal to 1	Solve
Mark Minimum Number of Operations to Move All Balls to Each Box completed	Minimum Number of Operations to Move All Balls to Each Box	Solve
Mark Minimum Number of Refueling Stops completed	Minimum Number of Refueling Stops	Solve
Mark Minimum Number of Taps to Open to Water a Garden completed	Minimum Number of Taps to Open to Water a Garden	Solve
Mark Minimum Operations to Equalize Binary String completed	Minimum Operations to Equalize Binary String	Solve
Mark Minimum Operations to Make the Array Alternating completed	Minimum Operations to Make the Array Alternating	Solve
Mark Minimum Pair Removal to Sort Array I completed	Minimum Pair Removal to Sort Array I	Solve
Mark Minimum Rounds to Complete All Tasks completed	Minimum Rounds to Complete All Tasks	Solve
Mark Minimum Sum of Four Digit Number After Splitting Digits completed	Minimum Sum of Four Digit Number After Splitting Digits	Solve
Mark Most Beautiful Item for Each Query completed	Most Beautiful Item for Each Query	Solve
Mark Most Common Word completed	Most Common Word	Solve
Mark My Calendar I completed	My Calendar I	Solve
Mark N-ary Tree Level Order Traversal completed	N-ary Tree Level Order Traversal	Solve
Mark Nearest Exit from Entrance in Maze completed	Nearest Exit from Entrance in Maze	Solve
Mark Network Delay Time completed	Network Delay Time	Solve
Mark Next Greater Node In Linked List completed	Next Greater Node In Linked List	Solve
Mark Nim Game completed	Nim Game	Solve
Mark Not Boring Movies completed	Not Boring Movies	Solve
Mark Number of Distinct Islands completed	Number of Distinct Islands	Solve
Mark Number of Distinct Islands II completed	Number of Distinct Islands II	Solve
Mark Number of Good Paths completed	Number of Good Paths	Solve
Mark Number of Islands II completed	Number of Islands II	Solve
Mark Number of Matching Subsequences completed	Number of Matching Subsequences	Solve
Mark Number of Students Unable to Eat Lunch completed	Number of Students Unable to Eat Lunch	Solve
Mark Number of Substrings Containing All Three Characters completed	Number of Substrings Containing All Three Characters	Solve
Mark Number of Ways to Split Array completed	Number of Ways to Split Array	Solve
Mark Numbers With Same Consecutive Differences completed	Numbers With Same Consecutive Differences	Solve
Mark Optimal Account Balancing completed	Optimal Account Balancing	Solve
Mark Parallel Courses completed	Parallel Courses	Solve
Mark Parsing A Boolean Expression completed	Parsing A Boolean Expression	Solve
Mark Partition Array for Maximum Sum completed	Partition Array for Maximum Sum	Solve
Mark Partition Array Into Two Arrays to Minimize Sum Difference completed	Partition Array Into Two Arrays to Minimize Sum Difference	Solve
Mark Patching Array completed	Patching Array	Solve
Mark Path Sum III completed	Path Sum III	Solve
Mark Path With Minimum Effort completed	Path With Minimum Effort	Solve
Mark Permutation Sequence completed	Permutation Sequence	Solve
Mark Product Price at a Given Date completed	Product Price at a Given Date	Solve
Mark Range Sum Query 2D - Mutable completed	Range Sum Query 2D - Mutable	Solve
Mark Relative Ranks completed	Relative Ranks	Solve
Mark Remove Duplicates from Sorted List II completed	Remove Duplicates from Sorted List II	Solve
Mark Reorder Data in Log Files completed	Reorder Data in Log Files	Solve
Mark Replace Elements with Greatest Element on Right Side completed	Replace Elements with Greatest Element on Right Side	Solve
Mark Reschedule Meetings for Maximum Free Time II completed	Reschedule Meetings for Maximum Free Time II	Solve
Mark Reshape Data: Melt completed	Reshape Data: Melt	Solve
Mark Restore IP Addresses completed	Restore IP Addresses	Solve
Mark Reveal Cards In Increasing Order completed	Reveal Cards In Increasing Order	Solve
Mark Reverse Bits completed	Reverse Bits	Solve
Mark Richest Customer Wealth completed	Richest Customer Wealth	Solve
Mark Robot Bounded In Circle completed	Robot Bounded In Circle	Solve
Mark Sales Analysis III completed	Sales Analysis III	Solve
Mark Shortest Bridge completed	Shortest Bridge	Solve
Mark Shortest Path in a Grid with Obstacles Elimination completed	Shortest Path in a Grid with Obstacles Elimination	Solve
Mark Shuffle the Array completed	Shuffle the Array	Solve
Mark Sleep completed	Sleep	Solve
Mark Sliding Window Median completed	Sliding Window Median	Solve
Mark Smallest Subarrays With Maximum Bitwise OR completed	Smallest Subarrays With Maximum Bitwise OR	Solve
Mark Snapshot Array completed	Snapshot Array	Solve
Mark Sort Array By Parity II completed	Sort Array By Parity II	Solve
Mark Sort Items by Groups Respecting Dependencies completed	Sort Items by Groups Respecting Dependencies	Solve
Mark Sorting the Sentence completed	Sorting the Sentence	Solve
Mark Strange Printer completed	Strange Printer	Solve
Mark Stream of Characters completed	Stream of Characters	Solve
Mark Students and Examinations completed	Students and Examinations	Solve
Mark Subtree of Another Tree completed	Subtree of Another Tree	Solve
Mark Sum of Perfect Square Ancestors completed	Sum of Perfect Square Ancestors	Solve
Mark Sum of Square Numbers completed	Sum of Square Numbers	Solve
Mark Sum of Total Strength of Wizards completed	Sum of Total Strength of Wizards	Solve
Mark The kth Factor of n completed	The kth Factor of n	Solve
Mark The Skyline Problem completed	The Skyline Problem	Solve
Mark Triangle Judgement completed	Triangle Judgement	Solve
Mark Trim a Binary Search Tree completed	Trim a Binary Search Tree	Solve
Mark Two Sum IV - Input is a BST completed	Two Sum IV - Input is a BST	Solve
Mark Unique 3-Digit Even Numbers completed	Unique 3-Digit Even Numbers	Solve
Mark Unique Paths III completed	Unique Paths III	Solve
Mark Valid Mountain Array completed	Valid Mountain Array	Solve
Mark Water Bottles II completed	Water Bottles II	Solve
Mark Word Ladder II completed	Word Ladder II	Solve