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Interview question tracker

TikTok Coding Interview Questions — Last 6 months

Practice 118 coding questions from TikTok 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.

One question at a time.

Top questions 118

Done	Question	LeetCode
Mark Longest Substring Without Repeating Characters completed	Longest Substring Without Repeating Characters	Solve
Mark LRU Cache completed	LRU Cache	Solve
Mark Longest Increasing Subsequence completed	Longest Increasing Subsequence	Solve
Mark Making A Large Island completed	Making A Large Island	Solve
Mark Meeting Rooms II completed	Meeting Rooms II	Solve
Mark Number of Islands completed	Number of Islands	Solve
Mark Subarray Sum Equals K completed	Subarray Sum Equals K	Solve
Mark Text Justification completed	Text Justification	Solve
Mark Top K Frequent Elements completed	Top K Frequent Elements	Solve
Mark Valid Parenthesis String completed	Valid Parenthesis String	Solve
Mark 3Sum completed	3Sum	Solve
Mark Brightest Position on Street completed	Brightest Position on Street	Solve
Mark Coin Change completed	Coin Change	Solve
Mark Container With Most Water completed	Container With Most Water	Solve
Mark Course Schedule completed	Course Schedule	Solve
Mark Course Schedule II completed	Course Schedule II	Solve
Mark Course Schedule IV completed	Course Schedule IV	Solve
Mark Daily Temperatures completed	Daily Temperatures	Solve
Mark Design HashMap completed	Design HashMap	Solve
Mark Evaluate Division completed	Evaluate Division	Solve
Mark Generate Parentheses completed	Generate Parentheses	Solve
Mark Longest Consecutive Sequence completed	Longest Consecutive Sequence	Solve
Mark Longest Palindromic Substring completed	Longest Palindromic Substring	Solve
Mark Merge Intervals completed	Merge Intervals	Solve
Mark Merge k Sorted Lists completed	Merge k Sorted Lists	Solve
Mark Minimum Operations to Write the Letter Y on a Grid completed	Minimum Operations to Write the Letter Y on a Grid	Solve
Mark Minimum Window Substring completed	Minimum Window Substring	Solve
Mark Number of Distinct Islands completed	Number of Distinct Islands	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 Simplify Path completed	Simplify Path	Solve
Mark Sqrt(x) completed	Sqrt(x)	Solve
Mark Word Search completed	Word Search	Solve
Mark Basic Calculator II completed	Basic Calculator II	Solve
Mark Basic Calculator III completed	Basic Calculator III	Solve
Mark Best Time to Buy and Sell Stock completed	Best Time to Buy and Sell Stock	Solve
Mark Best Time to Buy and Sell Stock II completed	Best Time to Buy and Sell Stock II	Solve
Mark Compare Version Numbers completed	Compare Version Numbers	Solve
Mark Construct Binary Tree from Preorder and Inorder Traversal completed	Construct Binary Tree from Preorder and Inorder Traversal	Solve
Mark Decode String completed	Decode String	Solve
Mark Design Memory Allocator completed	Design Memory Allocator	Solve
Mark Edit Distance completed	Edit Distance	Solve
Mark Group Anagrams completed	Group Anagrams	Solve
Mark House Robber completed	House Robber	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 Maximum Subarray completed	Maximum Subarray	Solve
Mark Meeting Rooms III completed	Meeting Rooms III	Solve
Mark Permutations II completed	Permutations II	Solve
Mark Possible Bipartition completed	Possible Bipartition	Solve
Mark Regions Cut By Slashes completed	Regions Cut By Slashes	Solve
Mark Remove Duplicate Letters completed	Remove Duplicate Letters	Solve
Mark Reorder List completed	Reorder List	Solve
Mark Reverse Nodes in k-Group completed	Reverse Nodes in k-Group	Solve
Mark Robot Room Cleaner completed	Robot Room Cleaner	Solve
Mark Rotting Oranges completed	Rotting Oranges	Solve
Mark Shortest Unsorted Continuous Subarray completed	Shortest Unsorted Continuous Subarray	Solve
Mark Spiral Matrix completed	Spiral Matrix	Solve
Mark Split Message Based on Limit completed	Split Message Based on Limit	Solve
Mark Subarray Sums Divisible by K completed	Subarray Sums Divisible by K	Solve
Mark Super Egg Drop completed	Super Egg Drop	Solve
Mark Valid Parentheses completed	Valid Parentheses	Solve
Mark Word Search II completed	Word Search II	Solve
Mark 24 Game completed	24 Game	Solve
Mark Alien Dictionary completed	Alien Dictionary	Solve
Mark Asteroid Collision completed	Asteroid Collision	Solve
Mark Basic Calculator completed	Basic Calculator	Solve
Mark Best Time to Buy and Sell Stock III completed	Best Time to Buy and Sell Stock III	Solve
Mark Binary Tree Maximum Path Sum completed	Binary Tree Maximum Path Sum	Solve
Mark Bus Routes completed	Bus Routes	Solve
Mark Champagne Tower completed	Champagne Tower	Solve
Mark Climbing Stairs completed	Climbing Stairs	Solve
Mark Contiguous Array completed	Contiguous Array	Solve
Mark Convert Binary Search Tree to Sorted Doubly Linked List completed	Convert Binary Search Tree to Sorted Doubly Linked List	Solve
Mark Count Number of Nice Subarrays completed	Count Number of Nice Subarrays	Solve
Mark Count the Number of Good Subarrays completed	Count the Number of Good Subarrays	Solve
Mark Deepest Leaves Sum completed	Deepest Leaves Sum	Solve
Mark Design Add and Search Words Data Structure completed	Design Add and Search Words Data Structure	Solve
Mark Design In-Memory File System completed	Design In-Memory File System	Solve
Mark Encode and Decode Strings completed	Encode and Decode Strings	Solve
Mark Find All Possible Recipes from Given Supplies completed	Find All Possible Recipes from Given Supplies	Solve
Mark Find Minimum in Rotated Sorted Array completed	Find Minimum in Rotated Sorted Array	Solve
Mark House Robber II completed	House Robber II	Solve
Mark Jump Game II completed	Jump Game II	Solve
Mark Largest Number completed	Largest Number	Solve
Mark Largest Rectangle in Histogram completed	Largest Rectangle in Histogram	Solve
Mark Longest Common Prefix completed	Longest Common Prefix	Solve
Mark Longest Duplicate Substring completed	Longest Duplicate Substring	Solve
Mark Longest Substring with At Most K Distinct Characters completed	Longest Substring with At Most K Distinct Characters	Solve
Mark Longest Valid Parentheses completed	Longest Valid Parentheses	Solve
Mark Lowest Common Ancestor of a Binary Tree completed	Lowest Common Ancestor of a Binary Tree	Solve
Mark Max Area of Island completed	Max Area of Island	Solve
Mark Maximum Swap completed	Maximum Swap	Solve
Mark Meeting Rooms completed	Meeting Rooms	Solve
Mark Minimum Remove to Make Valid Parentheses completed	Minimum Remove to Make Valid Parentheses	Solve
Mark Move Zeroes completed	Move Zeroes	Solve
Mark Multiply Strings completed	Multiply Strings	Solve
Mark N-Queens completed	N-Queens	Solve
Mark Next Greater Element I completed	Next Greater Element I	Solve
Mark Number of Adjacent Elements With the Same Color completed	Number of Adjacent Elements With the Same Color	Solve
Mark Path Sum II completed	Path Sum II	Solve
Mark Recover Binary Search Tree completed	Recover Binary Search Tree	Solve
Mark Remove K Digits completed	Remove K Digits	Solve
Mark Reorder Routes to Make All Paths Lead to the City Zero completed	Reorder Routes to Make All Paths Lead to the City Zero	Solve
Mark Restore IP Addresses completed	Restore IP Addresses	Solve
Mark Reverse Linked List completed	Reverse Linked List	Solve
Mark Reverse Linked List II completed	Reverse Linked List II	Solve
Mark Reverse Words in a String completed	Reverse Words in a String	Solve
Mark Rotate Array completed	Rotate Array	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 Snapshot Array completed	Snapshot Array	Solve
Mark Subarrays with K Different Integers completed	Subarrays with K Different Integers	Solve
Mark Swap Nodes in Pairs completed	Swap Nodes in Pairs	Solve
Mark Valid Palindrome completed	Valid Palindrome	Solve
Mark Valid Square completed	Valid Square	Solve
Mark Word Break completed	Word Break	Solve
Mark Word Ladder completed	Word Ladder	Solve