All TikTok Coding Interview Questions
317 questions we track for TikTok, most frequently asked first. Practice any of them in the code editor and get AI feedback on your solution.
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- Junior10% (33)
- Mid/Senior69% (220)
- Staff20% (64)
Questionspage 1 of 4
- Two Sum129 companiesJunior
- Add Two Numbers38 companiesMid/Senior
- Longest Substring Without Repeating Characters112 companiesMid/Senior
- Median of Two Sorted Arrays47 companiesStaff
- Longest Palindromic Substring76 companiesMid/Senior
- Regular Expression Matching27 companiesStaff
- Container With Most Water58 companiesMid/Senior
- Integer to Roman32 companiesMid/Senior
- Roman to Integer45 companiesJunior
- Longest Common Prefix57 companiesJunior
- 3Sum61 companiesMid/Senior
- Letter Combinations of a Phone Number40 companiesMid/Senior
- Remove Nth Node From End of List19 companiesMid/Senior
- Valid Parentheses119 companiesJunior
- Merge Two Sorted Lists40 companiesJunior
- Generate Parentheses40 companiesMid/Senior
- Merge k Sorted Lists53 companiesStaff
- Swap Nodes in Pairs16 companiesMid/Senior
- Reverse Nodes in k-Group28 companiesStaff
- Next Permutation31 companiesMid/Senior
- Longest Valid Parentheses28 companiesStaff
- Search in Rotated Sorted Array55 companiesMid/Senior
- Find First and Last Position of Element in Sorted Array31 companiesMid/Senior
- Valid Sudoku30 companiesMid/Senior
- Combination Sum30 companiesMid/Senior
- Combination Sum II17 companiesMid/Senior
- First Missing Positive35 companiesStaff
- Trapping Rain Water78 companiesStaff
- Multiply Strings17 companiesMid/Senior
- Wildcard Matching18 companiesStaff
- Jump Game II28 companiesMid/Senior
- Permutations26 companiesMid/Senior
- Permutations II9 companiesMid/Senior
- Group Anagrams91 companiesMid/Senior
- Pow(x, n)23 companiesMid/Senior
- N-Queens16 companiesStaff
- Maximum Subarray66 companiesMid/Senior
- Spiral Matrix53 companiesMid/Senior
- Jump Game34 companiesMid/Senior
- Merge Intervals109 companiesMid/Senior
- Insert Interval16 companiesMid/Senior
- Spiral Matrix II9 companiesMid/Senior
- Unique Paths22 companiesMid/Senior
- Unique Paths II12 companiesMid/Senior
- Minimum Path Sum17 companiesMid/Senior
- Plus One14 companiesJunior
- Text Justification40 companiesStaff
- Sqrt(x)19 companiesJunior
- Climbing Stairs38 companiesJunior
- Simplify Path25 companiesMid/Senior
- Edit Distance31 companiesMid/Senior
- Search a 2D Matrix19 companiesMid/Senior
- Sort Colors37 companiesMid/Senior
- Minimum Window Substring34 companiesStaff
- Combinations7 companiesMid/Senior
- Subsets20 companiesMid/Senior
- Word Search40 companiesMid/Senior
- Remove Duplicates from Sorted Array II12 companiesMid/Senior
- Remove Duplicates from Sorted List II10 companiesMid/Senior
- Largest Rectangle in Histogram32 companiesStaff
- Maximal Rectangle21 companiesStaff
- Merge Sorted Array38 companiesJunior
- Decode Ways23 companiesMid/Senior
- Reverse Linked List II18 companiesMid/Senior
- Restore IP Addresses18 companiesMid/Senior
- Unique Binary Search Trees11 companiesMid/Senior
- Recover Binary Search Tree7 companiesMid/Senior
- Symmetric Tree11 companiesJunior
- Binary Tree Zigzag Level Order Traversal19 companiesMid/Senior
- Construct Binary Tree from Preorder and Inorder Traversal9 companiesMid/Senior
- Construct Binary Tree from Inorder and Postorder Traversal7 companiesMid/Senior
- Convert Sorted Array to Binary Search Tree9 companiesJunior
- Path Sum10 companiesJunior
- Path Sum II10 companiesMid/Senior
- Best Time to Buy and Sell Stock90 companiesJunior
- Best Time to Buy and Sell Stock II28 companiesMid/Senior
- Best Time to Buy and Sell Stock III14 companiesStaff
- Binary Tree Maximum Path Sum23 companiesStaff
- Valid Palindrome44 companiesJunior
- Word Ladder II16 companiesStaff
- Word Ladder40 companiesStaff
- Longest Consecutive Sequence40 companiesMid/Senior
- Surrounded Regions12 companiesMid/Senior
- Gas Station27 companiesMid/Senior
- Candy23 companiesStaff
- Word Break32 companiesMid/Senior
- Word Break II16 companiesStaff
- Reorder List16 companiesMid/Senior
- Sort List9 companiesMid/Senior
- Reverse Words in a String29 companiesMid/Senior
- Maximum Product Subarray25 companiesMid/Senior
- Find Minimum in Rotated Sorted Array17 companiesMid/Senior
- Find Peak Element34 companiesMid/Senior
- Compare Version Numbers10 companiesMid/Senior
- Fraction to Recurring Decimal10 companiesMid/Senior
- Two Sum II - Input Array Is Sorted17 companiesMid/Senior
- Largest Number22 companiesMid/Senior
- Best Time to Buy and Sell Stock IV11 companiesStaff
- Rotate Array28 companiesMid/Senior
- House Robber38 companiesMid/Senior