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Interview question tracker

Bloomberg Coding Interview Questions — Last 3 months

Practice 221 coding questions from Bloomberg 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.

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Top questions 221

Done	Question	LeetCode
Mark Insert Delete GetRandom O(1) completed	Insert Delete GetRandom O(1)	Solve
Mark Merge Intervals completed	Merge Intervals	Solve
Mark Number of Islands completed	Number of Islands	Solve
Mark Decode String completed	Decode String	Solve
Mark Flatten a Multilevel Doubly Linked List completed	Flatten a Multilevel Doubly Linked List	Solve
Mark Invalid Transactions completed	Invalid Transactions	Solve
Mark Longest Substring Without Repeating Characters completed	Longest Substring Without Repeating Characters	Solve
Mark Min Stack completed	Min Stack	Solve
Mark Two Sum completed	Two Sum	Solve
Mark Word Search completed	Word Search	Solve
Mark Add Two Numbers completed	Add Two Numbers	Solve
Mark All Paths From Source to Target completed	All Paths From Source to Target	Solve
Mark Longest Common Prefix completed	Longest Common Prefix	Solve
Mark Number of Ships in a Rectangle completed	Number of Ships in a Rectangle	Solve
Mark Remove All Adjacent Duplicates in String II completed	Remove All Adjacent Duplicates in String II	Solve
Mark Remove Letter To Equalize Frequency completed	Remove Letter To Equalize Frequency	Solve
Mark Reverse Integer completed	Reverse Integer	Solve
Mark Trapping Rain Water completed	Trapping Rain Water	Solve
Mark Valid Parentheses completed	Valid Parentheses	Solve
Mark Valid Triangle Number completed	Valid Triangle Number	Solve
Mark Validate Binary Search Tree completed	Validate Binary Search Tree	Solve
Mark Word Break II completed	Word Break II	Solve
Mark 3Sum completed	3Sum	Solve
Mark Best Time to Buy and Sell Stock completed	Best Time to Buy and Sell Stock	Solve
Mark Binary Tree Vertical Order Traversal completed	Binary Tree Vertical Order Traversal	Solve
Mark Container With Most Water completed	Container With Most Water	Solve
Mark Contains Duplicate II completed	Contains Duplicate II	Solve
Mark Design Browser History completed	Design Browser History	Solve
Mark Design Underground System completed	Design Underground System	Solve
Mark Evaluate Division completed	Evaluate Division	Solve
Mark First Unique Character in a String completed	First Unique Character in a String	Solve
Mark Group Anagrams completed	Group Anagrams	Solve
Mark Implement Magic Dictionary completed	Implement Magic Dictionary	Solve
Mark Longest Palindromic Substring completed	Longest Palindromic Substring	Solve
Mark LRU Cache completed	LRU Cache	Solve
Mark Majority Element completed	Majority Element	Solve
Mark Meeting Rooms II completed	Meeting Rooms II	Solve
Mark Merge Two Sorted Lists completed	Merge Two Sorted Lists	Solve
Mark Minimum Number of Steps to Make Two Strings Anagram completed	Minimum Number of Steps to Make Two Strings Anagram	Solve
Mark Minimum Remove to Make Valid Parentheses completed	Minimum Remove to Make Valid Parentheses	Solve
Mark Next Permutation completed	Next Permutation	Solve
Mark Palindrome Number completed	Palindrome Number	Solve
Mark Pow(x, n) completed	Pow(x, n)	Solve
Mark Remove Linked List Elements completed	Remove Linked List Elements	Solve
Mark Roman to Integer completed	Roman to Integer	Solve
Mark Sort Integers by The Power Value completed	Sort Integers by The Power Value	Solve
Mark Subsets completed	Subsets	Solve
Mark Two City Scheduling completed	Two City Scheduling	Solve
Mark Valid Anagram completed	Valid Anagram	Solve
Mark Vertical Order Traversal of a Binary Tree completed	Vertical Order Traversal of a Binary Tree	Solve
Mark Zigzag Conversion completed	Zigzag Conversion	Solve
Mark Candy completed	Candy	Solve
Mark Climbing Stairs completed	Climbing Stairs	Solve
Mark Coin Change completed	Coin Change	Solve
Mark Design A Leaderboard completed	Design A Leaderboard	Solve
Mark Design an Ordered Stream completed	Design an Ordered Stream	Solve
Mark Diagonal Traverse completed	Diagonal Traverse	Solve
Mark Divide Two Integers completed	Divide Two Integers	Solve
Mark Employees Earning More Than Their Managers completed	Employees Earning More Than Their Managers	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 Peak Element completed	Find Peak Element	Solve
Mark Find the Winner of the Circular Game completed	Find the Winner of the Circular Game	Solve
Mark Generate Parentheses completed	Generate Parentheses	Solve
Mark Isomorphic Strings completed	Isomorphic Strings	Solve
Mark Kth Largest Element in an Array completed	Kth Largest Element in an Array	Solve
Mark Longest Repeating Character Replacement completed	Longest Repeating Character Replacement	Solve
Mark Max Consecutive Ones completed	Max Consecutive Ones	Solve
Mark Max Consecutive Ones III completed	Max Consecutive Ones III	Solve
Mark Maximum Nesting Depth of the Parentheses completed	Maximum Nesting Depth of the Parentheses	Solve
Mark Maximum Subarray completed	Maximum Subarray	Solve
Mark Median of Two Sorted Arrays completed	Median of Two Sorted Arrays	Solve
Mark Merge k Sorted Lists completed	Merge k Sorted Lists	Solve
Mark N-Queens completed	N-Queens	Solve
Mark Next Greater Numerically Balanced Number completed	Next Greater Numerically Balanced Number	Solve
Mark Populating Next Right Pointers in Each Node completed	Populating Next Right Pointers in Each Node	Solve
Mark Populating Next Right Pointers in Each Node II completed	Populating Next Right Pointers in Each Node II	Solve
Mark Range Sum Query 2D - Mutable completed	Range Sum Query 2D - Mutable	Solve
Mark Reverse Linked List completed	Reverse Linked List	Solve
Mark Rotting Oranges completed	Rotting Oranges	Solve
Mark Search in Rotated Sorted Array completed	Search in Rotated Sorted Array	Solve
Mark Search Insert Position completed	Search Insert Position	Solve
Mark Shortest Path in Binary Matrix completed	Shortest Path in Binary Matrix	Solve
Mark Spiral Matrix completed	Spiral Matrix	Solve
Mark Triangle completed	Triangle	Solve
Mark Unique Paths II completed	Unique Paths II	Solve
Mark 1-bit and 2-bit Characters completed	1-bit and 2-bit Characters	Solve
Mark Add Binary completed	Add Binary	Solve
Mark Add One Row to Tree completed	Add One Row to Tree	Solve
Mark Add Two Numbers II completed	Add Two Numbers II	Solve
Mark Adjacent Increasing Subarrays Detection I completed	Adjacent Increasing Subarrays Detection I	Solve
Mark Arranging Coins completed	Arranging Coins	Solve
Mark Avoid Flood in The City completed	Avoid Flood in The City	Solve
Mark Balanced Binary Tree completed	Balanced Binary Tree	Solve
Mark Basic Calculator II completed	Basic Calculator II	Solve
Mark Biggest Single Number completed	Biggest Single Number	Solve
Mark Binary Search completed	Binary Search	Solve
Mark Binary Tree Inorder Traversal completed	Binary Tree Inorder Traversal	Solve
Mark Binary Tree Level Order Traversal completed	Binary Tree Level Order Traversal	Solve
Mark Binary Tree Maximum Path Sum completed	Binary Tree Maximum Path Sum	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 Brick Wall completed	Brick Wall	Solve
Mark Can Place Flowers completed	Can Place Flowers	Solve
Mark Coin Change II completed	Coin Change II	Solve
Mark Combination Sum completed	Combination Sum	Solve
Mark Contains Duplicate III completed	Contains Duplicate III	Solve
Mark Copy List with Random Pointer completed	Copy List with Random Pointer	Solve
Mark Count and Say completed	Count and Say	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 Number of Nice Subarrays completed	Count Number of Nice Subarrays	Solve
Mark Course Schedule completed	Course Schedule	Solve
Mark Course Schedule II completed	Course Schedule II	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 Customers Who Never Order completed	Customers Who Never Order	Solve
Mark Defuse the Bomb completed	Defuse the Bomb	Solve
Mark Delete Node in a BST completed	Delete Node in a BST	Solve
Mark Design Add and Search Words Data Structure completed	Design Add and Search Words Data Structure	Solve
Mark Design Search Autocomplete System completed	Design Search Autocomplete System	Solve
Mark Design Task Manager completed	Design Task Manager	Solve
Mark Determine if Two Strings Are Close completed	Determine if Two Strings Are Close	Solve
Mark Edit Distance completed	Edit Distance	Solve
Mark Evaluate Reverse Polish Notation completed	Evaluate Reverse Polish Notation	Solve
Mark Fibonacci Number completed	Fibonacci Number	Solve
Mark Find Median from Data Stream completed	Find Median from Data Stream	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 Find the Minimum Amount of Time to Brew Potions completed	Find the Minimum Amount of Time to Brew Potions	Solve
Mark Find Users With Valid E-Mails completed	Find Users With Valid E-Mails	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 First Missing Positive completed	First Missing Positive	Solve
Mark Fraction to Recurring Decimal completed	Fraction to Recurring Decimal	Solve
Mark Friend Requests II: Who Has the Most Friends completed	Friend Requests II: Who Has the Most Friends	Solve
Mark Gas Station completed	Gas Station	Solve
Mark Guess the Word completed	Guess the Word	Solve
Mark Happy Number completed	Happy Number	Solve
Mark House Robber completed	House Robber	Solve
Mark Increasing Triplet Subsequence completed	Increasing Triplet Subsequence	Solve
Mark Insert Delete GetRandom O(1) - Duplicates allowed completed	Insert Delete GetRandom O(1) - Duplicates allowed	Solve
Mark Integer to Roman completed	Integer to Roman	Solve
Mark Intersection of Two Arrays completed	Intersection of Two Arrays	Solve
Mark Jump Game completed	Jump Game	Solve
Mark Jump Game II completed	Jump Game II	Solve
Mark Kth Smallest Element in a BST completed	Kth Smallest Element in a BST	Solve
Mark Largest Number completed	Largest Number	Solve
Mark Largest Rectangle in Histogram completed	Largest Rectangle in Histogram	Solve
Mark Largest Triangle Area completed	Largest Triangle Area	Solve
Mark Length of Last Word completed	Length of Last Word	Solve
Mark Letter Combinations of a Phone Number completed	Letter Combinations of a Phone Number	Solve
Mark LFU Cache completed	LFU Cache	Solve
Mark Longest Balanced Substring I completed	Longest Balanced Substring I	Solve
Mark Longest Common Subsequence completed	Longest Common Subsequence	Solve
Mark Lowest Common Ancestor of a Binary Tree completed	Lowest Common Ancestor of a Binary Tree	Solve
Mark Majority Element II completed	Majority Element II	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 Merge Sorted Array completed	Merge Sorted Array	Solve
Mark Merge Strings Alternately completed	Merge Strings Alternately	Solve
Mark Minimum Absolute Difference completed	Minimum Absolute Difference	Solve
Mark Minimum One Bit Operations to Make Integers Zero completed	Minimum One Bit Operations to Make Integers Zero	Solve
Mark Minimum Operations to Make the Integer Zero completed	Minimum Operations to Make the Integer Zero	Solve
Mark Minimum Window Substring completed	Minimum Window Substring	Solve
Mark Missing Number completed	Missing Number	Solve
Mark Move Zeroes completed	Move Zeroes	Solve
Mark Multiply Strings completed	Multiply Strings	Solve
Mark Next Greater Element I completed	Next Greater Element I	Solve
Mark Number of People Aware of a Secret completed	Number of People Aware of a Secret	Solve
Mark Number of Steps to Reduce a Number to Zero completed	Number of Steps to Reduce a Number to Zero	Solve
Mark Ones and Zeroes completed	Ones and Zeroes	Solve
Mark Online Stock Span completed	Online Stock Span	Solve
Mark Open the Lock completed	Open the Lock	Solve
Mark Palindromic Substrings completed	Palindromic Substrings	Solve
Mark Partition List completed	Partition List	Solve
Mark Pascal's Triangle completed	Pascal's Triangle	Solve
Mark Path Sum completed	Path Sum	Solve
Mark Peak Index in a Mountain Array completed	Peak Index in a Mountain Array	Solve
Mark Plus One completed	Plus One	Solve
Mark Power of Two completed	Power of Two	Solve
Mark Primary Department for Each Employee completed	Primary Department for Each Employee	Solve
Mark Product of Array Except Self completed	Product of Array Except Self	Solve
Mark Rank Teams by Votes completed	Rank Teams by Votes	Solve
Mark Rearrange Array Elements by Sign completed	Rearrange Array Elements by Sign	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 Duplicates from Sorted Array completed	Remove Duplicates from Sorted Array	Solve
Mark Remove Duplicates from Sorted List II completed	Remove Duplicates from Sorted List II	Solve
Mark Remove Element completed	Remove Element	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 Restaurant Growth completed	Restaurant Growth	Solve
Mark Reverse String completed	Reverse String	Solve
Mark Reverse Words in a String completed	Reverse Words in a String	Solve
Mark Rotate Array completed	Rotate Array	Solve
Mark Rotate List completed	Rotate List	Solve
Mark Rotate String completed	Rotate String	Solve
Mark Same Tree completed	Same Tree	Solve
Mark Search a 2D Matrix II completed	Search a 2D Matrix II	Solve
Mark Search in Rotated Sorted Array II completed	Search in Rotated Sorted Array II	Solve
Mark Simple Bank System completed	Simple Bank System	Solve
Mark Single Number completed	Single Number	Solve
Mark Sliding Window Maximum completed	Sliding Window Maximum	Solve
Mark Sort an Array completed	Sort an Array	Solve
Mark Sort List completed	Sort List	Solve
Mark Sqrt(x) completed	Sqrt(x)	Solve
Mark String Compression completed	String Compression	Solve
Mark String to Integer (atoi) completed	String to Integer (atoi)	Solve
Mark Subarray Sum Equals K completed	Subarray Sum Equals K	Solve
Mark Subsets II completed	Subsets II	Solve
Mark Sum of Mutated Array Closest to Target completed	Sum of Mutated Array Closest to Target	Solve
Mark Surrounded Regions completed	Surrounded Regions	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 Two Sum II - Input Array Is Sorted completed	Two Sum II - Input Array Is Sorted	Solve
Mark User Activity for the Past 30 Days I completed	User Activity for the Past 30 Days I	Solve
Mark Vowel Spellchecker completed	Vowel Spellchecker	Solve
Mark Wildcard Matching completed	Wildcard Matching	Solve
Mark Word Ladder completed	Word Ladder	Solve
Mark Word Pattern completed	Word Pattern	Solve
Mark Word Search II completed	Word Search II	Solve