Make your practice count.Sign in to track completed questions across devices. Everything is free to browse.

Interview question tracker

Microsoft Coding Interview Questions — Last 3 months

Practice 239 coding questions from Microsoft company-tagged LeetCode lists in the source’s last 3 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.

One question at a time.

Top questions 239

Done	Question	LeetCode
Mark Two Sum completed	Two Sum	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 Group Anagrams completed	Group Anagrams	Solve
Mark Longest Palindromic Substring completed	Longest Palindromic Substring	Solve
Mark Longest Substring Without Repeating Characters completed	Longest Substring Without Repeating Characters	Solve
Mark LRU Cache completed	LRU Cache	Solve
Mark Median of Two Sorted Arrays completed	Median of Two Sorted Arrays	Solve
Mark Remove Duplicates from Sorted Array completed	Remove Duplicates from Sorted Array	Solve
Mark Roman to Integer completed	Roman to Integer	Solve
Mark Subarray Sum Equals K completed	Subarray Sum Equals K	Solve
Mark Trapping Rain Water completed	Trapping Rain Water	Solve
Mark 3Sum completed	3Sum	Solve
Mark Battleships in a Board completed	Battleships in a Board	Solve
Mark Container With Most Water completed	Container With Most Water	Solve
Mark Count the Number of Infection Sequences completed	Count the Number of Infection Sequences	Solve
Mark Daily Temperatures completed	Daily Temperatures	Solve
Mark Design Authentication Manager completed	Design Authentication Manager	Solve
Mark Find Minimum in Rotated Sorted Array completed	Find Minimum in Rotated Sorted Array	Solve
Mark Find Peak Element completed	Find Peak Element	Solve
Mark Jump Game II completed	Jump Game II	Solve
Mark Longest Common Prefix completed	Longest Common Prefix	Solve
Mark Majority Element completed	Majority Element	Solve
Mark Maximum Subarray completed	Maximum Subarray	Solve
Mark Meeting Rooms II completed	Meeting Rooms II	Solve
Mark Merge Intervals completed	Merge Intervals	Solve
Mark Minimum Difficulty of a Job Schedule completed	Minimum Difficulty of a Job Schedule	Solve
Mark Minimum Operations to Make Array Equal to Target completed	Minimum Operations to Make Array Equal to Target	Solve
Mark Minimum Operations to Reduce an Integer to 0 completed	Minimum Operations to Reduce an Integer to 0	Solve
Mark Next Permutation completed	Next Permutation	Solve
Mark Number of Islands completed	Number of Islands	Solve
Mark Palindrome Number completed	Palindrome Number	Solve
Mark Reverse Integer completed	Reverse Integer	Solve
Mark Reverse Nodes in k-Group completed	Reverse Nodes in k-Group	Solve
Mark Rising Temperature completed	Rising Temperature	Solve
Mark Rotate Image completed	Rotate Image	Solve
Mark Search in Rotated Sorted Array completed	Search in Rotated Sorted Array	Solve
Mark Serialize and Deserialize Binary Tree completed	Serialize and Deserialize Binary Tree	Solve
Mark Spiral Matrix completed	Spiral Matrix	Solve
Mark Valid Parentheses completed	Valid Parentheses	Solve
Mark Average Time of Process per Machine completed	Average Time of Process per Machine	Solve
Mark Calculate Money in Leetcode Bank completed	Calculate Money in Leetcode Bank	Solve
Mark Climbing Stairs completed	Climbing Stairs	Solve
Mark Coin Change completed	Coin Change	Solve
Mark Contains Duplicate completed	Contains Duplicate	Solve
Mark Course Schedule II completed	Course Schedule II	Solve
Mark Decode String completed	Decode String	Solve
Mark Find Median from Data Stream completed	Find Median from Data Stream	Solve
Mark Find the Duplicate Number completed	Find the Duplicate Number	Solve
Mark First Missing Positive completed	First Missing Positive	Solve
Mark First Unique Character in a String completed	First Unique Character in a String	Solve
Mark Generate Parentheses completed	Generate Parentheses	Solve
Mark Largest Rectangle in Histogram completed	Largest Rectangle in Histogram	Solve
Mark Linked List Cycle completed	Linked List Cycle	Solve
Mark Longest Repeating Character Replacement completed	Longest Repeating Character Replacement	Solve
Mark Lowest Common Ancestor of a Binary Tree completed	Lowest Common Ancestor of a Binary Tree	Solve
Mark Maximum Product Subarray completed	Maximum Product Subarray	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 Edge Reversals So Every Node Is Reachable completed	Minimum Edge Reversals So Every Node Is Reachable	Solve
Mark Minimum Initial Energy to Finish Tasks completed	Minimum Initial Energy to Finish Tasks	Solve
Mark Minimum Number of Steps to Make Two Strings Anagram completed	Minimum Number of Steps to Make Two Strings Anagram	Solve
Mark Multiply Strings completed	Multiply Strings	Solve
Mark N-Queens completed	N-Queens	Solve
Mark Permutations completed	Permutations	Solve
Mark Product of Array Except Self completed	Product of Array Except Self	Solve
Mark Regular Expression Matching completed	Regular Expression Matching	Solve
Mark Remove Nth Node From End of List completed	Remove Nth Node From End of List	Solve
Mark Reverse Linked List completed	Reverse Linked List	Solve
Mark Rotate Array completed	Rotate Array	Solve
Mark Rotting Oranges completed	Rotting Oranges	Solve
Mark Sliding Window Maximum completed	Sliding Window Maximum	Solve
Mark Smallest String With Swaps completed	Smallest String With Swaps	Solve
Mark Sort Colors completed	Sort Colors	Solve
Mark Split Array Largest Sum completed	Split Array Largest Sum	Solve
Mark Two Sum II - Input Array Is Sorted completed	Two Sum II - Input Array Is Sorted	Solve
Mark Valid Anagram completed	Valid Anagram	Solve
Mark Valid Sudoku completed	Valid Sudoku	Solve
Mark Vowel Spellchecker completed	Vowel Spellchecker	Solve
Mark Word Search completed	Word Search	Solve
Mark 4Sum completed	4Sum	Solve
Mark Accounts Merge completed	Accounts Merge	Solve
Mark Add Binary completed	Add Binary	Solve
Mark Add Two Integers completed	Add Two Integers	Solve
Mark Article Views I completed	Article Views I	Solve
Mark Assign Cookies completed	Assign Cookies	Solve
Mark Asteroid Collision completed	Asteroid Collision	Solve
Mark Average Selling Price completed	Average Selling Price	Solve
Mark Basic Calculator completed	Basic Calculator	Solve
Mark Best Time to Buy and Sell Stock II completed	Best Time to Buy and Sell Stock II	Solve
Mark Binary Search completed	Binary Search	Solve
Mark Broken Calculator completed	Broken Calculator	Solve
Mark Cheapest Flights Within K Stops completed	Cheapest Flights Within K Stops	Solve
Mark Check if the Sentence Is Pangram completed	Check if the Sentence Is Pangram	Solve
Mark Clone Graph completed	Clone Graph	Solve
Mark Combine Two Tables completed	Combine Two Tables	Solve
Mark Concatenation of Array completed	Concatenation of Array	Solve
Mark Construct Binary Tree from Preorder and Inorder Traversal completed	Construct Binary Tree from Preorder and Inorder Traversal	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 Convert Sorted Array to Binary Search Tree completed	Convert Sorted Array to Binary Search Tree	Solve
Mark Copy List with Random Pointer completed	Copy List with Random Pointer	Solve
Mark Count Binary Substrings completed	Count Binary Substrings	Solve
Mark Count Servers that Communicate completed	Count Servers that Communicate	Solve
Mark Course Schedule completed	Course Schedule	Solve
Mark Create Hello World Function completed	Create Hello World Function	Solve
Mark Customer Who Visited but Did Not Make Any Transactions completed	Customer Who Visited but Did Not Make Any Transactions	Solve
Mark Decode Ways completed	Decode Ways	Solve
Mark Design Circular Queue completed	Design Circular Queue	Solve
Mark Design HashMap completed	Design HashMap	Solve
Mark Design Hit Counter completed	Design Hit Counter	Solve
Mark Design Memory Allocator completed	Design Memory Allocator	Solve
Mark Design Task Manager completed	Design Task Manager	Solve
Mark Diagonal Traverse completed	Diagonal Traverse	Solve
Mark Divide Two Integers completed	Divide Two Integers	Solve
Mark Edit Distance completed	Edit Distance	Solve
Mark Evaluate Division completed	Evaluate Division	Solve
Mark Evaluate Reverse Polish Notation completed	Evaluate Reverse Polish Notation	Solve
Mark Excel Sheet Column Number completed	Excel Sheet Column Number	Solve
Mark Excel Sheet Column Title completed	Excel Sheet Column Title	Solve
Mark Final Prices With a Special Discount in a Shop completed	Final Prices With a Special Discount in a Shop	Solve
Mark Find All Anagrams in a String completed	Find All Anagrams in a String	Solve
Mark Find All Duplicates in an Array completed	Find All Duplicates in an Array	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 if Path Exists in Graph completed	Find if Path Exists in Graph	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 the Index of the First Occurrence in a String completed	Find the Index of the First Occurrence in a String	Solve
Mark Fizz Buzz completed	Fizz Buzz	Solve
Mark Flatten a Multilevel Doubly Linked List completed	Flatten a Multilevel Doubly Linked List	Solve
Mark Flood Fill completed	Flood Fill	Solve
Mark Game of Life completed	Game of Life	Solve
Mark Gas Station completed	Gas Station	Solve
Mark H-Index completed	H-Index	Solve
Mark Happy Number completed	Happy Number	Solve
Mark Implement Trie (Prefix Tree) completed	Implement Trie (Prefix Tree)	Solve
Mark Insert Delete GetRandom O(1) completed	Insert Delete GetRandom O(1)	Solve
Mark Insert Interval completed	Insert Interval	Solve
Mark Insert into a Binary Search Tree completed	Insert into a Binary Search Tree	Solve
Mark Integer to Roman completed	Integer to Roman	Solve
Mark Interleaving String completed	Interleaving String	Solve
Mark Intersection of Two Arrays completed	Intersection of Two Arrays	Solve
Mark Intersection of Two Arrays II completed	Intersection of Two Arrays II	Solve
Mark Investments in 2016 completed	Investments in 2016	Solve
Mark Isomorphic Strings completed	Isomorphic Strings	Solve
Mark Jump Game completed	Jump Game	Solve
Mark Koko Eating Bananas completed	Koko Eating Bananas	Solve
Mark Kth Largest Element in an Array completed	Kth Largest Element in an Array	Solve
Mark Kth Missing Positive Number completed	Kth Missing Positive Number	Solve
Mark Kth Smallest Element in a BST completed	Kth Smallest Element in a BST	Solve
Mark Largest Odd Number in String completed	Largest Odd Number in String	Solve
Mark Length of Last Word completed	Length of Last Word	Solve
Mark Longest Common Subsequence completed	Longest Common Subsequence	Solve
Mark Longest Consecutive Sequence completed	Longest Consecutive Sequence	Solve
Mark Longest Increasing Subsequence completed	Longest Increasing Subsequence	Solve
Mark Longest Palindromic Subsequence completed	Longest Palindromic Subsequence	Solve
Mark Longest String Chain completed	Longest String Chain	Solve
Mark Longest Substring with At Least K Repeating Characters completed	Longest Substring with At Least K Repeating Characters	Solve
Mark Making A Large Island completed	Making A Large Island	Solve
Mark Max Consecutive Ones III completed	Max Consecutive Ones III	Solve
Mark Maximal Network Rank completed	Maximal Network Rank	Solve
Mark Maximum Average Subarray I completed	Maximum Average Subarray I	Solve
Mark Maximum Depth of Binary Tree completed	Maximum Depth of Binary Tree	Solve
Mark Maximum Number of Non-overlapping Palindrome Substrings completed	Maximum Number of Non-overlapping Palindrome Substrings	Solve
Mark Maximum Number of Words You Can Type completed	Maximum Number of Words You Can Type	Solve
Mark Maximum OR completed	Maximum OR	Solve
Mark Maximum Palindromes After Operations completed	Maximum Palindromes After Operations	Solve
Mark Middle of the Linked List completed	Middle of the Linked List	Solve
Mark Min Stack completed	Min Stack	Solve
Mark Minimize Malware Spread completed	Minimize Malware Spread	Solve
Mark Minimum Genetic Mutation completed	Minimum Genetic Mutation	Solve
Mark Minimum Knight Moves completed	Minimum Knight Moves	Solve
Mark Minimum Number of Refueling Stops completed	Minimum Number of Refueling Stops	Solve
Mark Minimum Path Sum completed	Minimum Path Sum	Solve
Mark Minimum Score Triangulation of Polygon completed	Minimum Score Triangulation of Polygon	Solve
Mark Minimum Value to Get Positive Step by Step Sum completed	Minimum Value to Get Positive Step by Step Sum	Solve
Mark Missing Number completed	Missing Number	Solve
Mark Monthly Transactions I completed	Monthly Transactions I	Solve
Mark Move Zeroes completed	Move Zeroes	Solve
Mark N-Queens II completed	N-Queens II	Solve
Mark Next Greater Element I completed	Next Greater Element I	Solve
Mark Next Greater Element II completed	Next Greater Element II	Solve
Mark Number of People Aware of a Secret completed	Number of People Aware of a Secret	Solve
Mark Number of Provinces completed	Number of Provinces	Solve
Mark Number of Visible People in a Queue completed	Number of Visible People in a Queue	Solve
Mark Odd Even Linked List completed	Odd Even Linked List	Solve
Mark Online Stock Span completed	Online Stock Span	Solve
Mark Open the Lock completed	Open the Lock	Solve
Mark Palindrome Partitioning completed	Palindrome Partitioning	Solve
Mark Palindromic Substrings completed	Palindromic Substrings	Solve
Mark Partition Equal Subset Sum completed	Partition Equal Subset Sum	Solve
Mark Pascal's Triangle completed	Pascal's Triangle	Solve
Mark Path Sum II completed	Path Sum II	Solve
Mark Perfect Number completed	Perfect Number	Solve
Mark Permutations II completed	Permutations II	Solve
Mark Populating Next Right Pointers in Each Node completed	Populating Next Right Pointers in Each Node	Solve
Mark Power Grid Maintenance completed	Power Grid Maintenance	Solve
Mark Product Sales Analysis III completed	Product Sales Analysis III	Solve
Mark Ransom Note completed	Ransom Note	Solve
Mark Rearrange Words in a Sentence completed	Rearrange Words in a Sentence	Solve
Mark Recover Binary Search Tree completed	Recover Binary Search Tree	Solve
Mark Recyclable and Low Fat Products completed	Recyclable and Low Fat Products	Solve
Mark Remove Element completed	Remove Element	Solve
Mark Remove Linked List Elements completed	Remove Linked List Elements	Solve
Mark Reorganize String completed	Reorganize String	Solve
Mark Replace Employee ID With The Unique Identifier completed	Replace Employee ID With The Unique Identifier	Solve
Mark Restore IP Addresses completed	Restore IP Addresses	Solve
Mark Reverse Linked List II completed	Reverse Linked List II	Solve
Mark Reverse Vowels of a String completed	Reverse Vowels of a String	Solve
Mark Reverse Words in a String completed	Reverse Words in a String	Solve
Mark Robot Bounded In Circle completed	Robot Bounded In Circle	Solve
Mark Rotate List completed	Rotate List	Solve
Mark Running Sum of 1d Array completed	Running Sum of 1d Array	Solve
Mark Same Tree completed	Same Tree	Solve
Mark Search a 2D Matrix II completed	Search a 2D Matrix II	Solve
Mark Search Insert Position completed	Search Insert Position	Solve
Mark Shifting Letters completed	Shifting Letters	Solve
Mark Single Element in a Sorted Array completed	Single Element in a Sorted Array	Solve
Mark Single Number completed	Single Number	Solve
Mark Smallest Number With All Set Bits completed	Smallest Number With All Set Bits	Solve
Mark Sorting the Sentence completed	Sorting the Sentence	Solve
Mark Sqrt(x) completed	Sqrt(x)	Solve
Mark String to Integer (atoi) completed	String to Integer (atoi)	Solve
Mark Subarrays with K Different Integers completed	Subarrays with K Different Integers	Solve
Mark Subsets completed	Subsets	Solve
Mark Successful Pairs of Spells and Potions completed	Successful Pairs of Spells and Potions	Solve
Mark Task Scheduler completed	Task Scheduler	Solve
Mark Text Justification completed	Text Justification	Solve
Mark The Two Sneaky Numbers of Digitville completed	The Two Sneaky Numbers of Digitville	Solve
Mark Top K Frequent Elements completed	Top K Frequent Elements	Solve
Mark Trapping Rain Water II completed	Trapping Rain Water II	Solve
Mark Twisted Mirror Path Count completed	Twisted Mirror Path Count	Solve
Mark Valid Palindrome completed	Valid Palindrome	Solve
Mark Valid Perfect Square completed	Valid Perfect Square	Solve
Mark Wildcard Matching completed	Wildcard Matching	Solve
Mark Word Break completed	Word Break	Solve
Mark Word Ladder completed	Word Ladder	Solve
Mark Word Search II completed	Word Search II	Solve
Mark Zigzag Conversion completed	Zigzag Conversion	Solve