Dashboard Questions Topics Companies Sheets

TikTok Interview Questions

126 coding problems asked in TikTok interviews. Prepare for your technical interview with real questions.

126

Problems

Easy

Medium

Hard

Difficulty

All126 Easy14 Medium77 Hard35

Title	Solve	Difficulty	Companies	Topics
12. Integer to Roman	Solve	Medium	Adobe+8	Hash Table Math+1
13. Roman to Integer	Solve	Easy	Accenture+18	Hash Table Math+1
15. 3Sum	Solve	Medium	Adobe+21	Array Sorting+1
20. Valid Parentheses	Solve	Easy	Adobe+25	Stack String
23. Merge k Sorted Lists	Solve	Hard	Adobe+17	Divide and Conquer Heap (Priority Queue)+2
31. Next Permutation	Solve	Medium	Adobe+19	Array Two Pointers
33. Search in Rotated Sorted Array	Solve	Medium	Accenture+91	Array Binary Search
35. Search Insert Position	Solve	Easy	Adobe+8	Array Binary Search
37. Sudoku Solver	Solve	Hard	Adobe+11	Array Backtracking+2
45. Jump Game II	Solve	Medium	Adobe+9	Array Dynamic Programming+1
49. Group Anagrams	Solve	Medium	Adobe+23	Array Hash Table+2
50. Pow(x, n)	Solve	Medium	Adobe+29	Math Recursion
51. N-Queens	Solve	Hard	Adobe+7	Array Backtracking
56. Merge Intervals	Solve	Medium	Adobe+24	Array Sorting
59. Spiral Matrix II	Solve	Medium	Amazon+3	Array Matrix+1
93. Restore IP Addresses	Solve	Medium	Amazon+6	Backtracking String
98. Validate Binary Search Tree	Solve	Medium	Adobe+8	Binary Search Tree Binary Tree+2
121. Best Time to Buy and Sell Stock	Solve	Easy	Adobe+30	Array Dynamic Programming
124. Binary Tree Maximum Path Sum	Solve	Hard	Adobe+14	Binary Tree Depth-First Search+2
130. Surrounded Regions	Solve	Medium	Bloomberg+3	Array Breadth-First Search+3
131. Palindrome Partitioning	Solve	Medium	Amazon+4	Backtracking Dynamic Programming+1
134. Gas Station	Solve	Medium	Adobe+8	Array Greedy
146. LRU Cache	Solve	Medium	Accolite+56	Design Doubly-Linked List+2
160. Intersection of Two Linked Lists	Solve	Easy	Adobe+7	Hash Table Linked List+1
200. Number of Islands	Solve	Medium	Adobe+40	Array Breadth-First Search+3
204. Count Primes	Solve	Medium	Adobe+6	Array Enumeration+2
207. Course Schedule	Solve	Medium	Amazon+8	Breadth-First Search Depth-First Search+2
210. Course Schedule II	Solve	Medium	Amazon+14	Breadth-First Search Depth-First Search+2
215. Kth Largest Element in an Array	Solve	Medium	ABCO+44	Array Divide and Conquer+3
222. Count Complete Tree Nodes	Solve	Easy	Amazon+2	Binary Search Binary Tree+2
239. Sliding Window Maximum	Solve	Hard	Accion Labs India+66	Array Heap (Priority Queue)+3
259. 3Sum Smaller	Solve	Medium	Apple+2	Array Binary Search+2
283. Move Zeroes	Solve	Easy	Adobe+11	Array Two Pointers
286. Walls and Gates	Solve	Medium	Amazon+6	Array Breadth-First Search+1
295. Find Median from Data Stream	Solve	Hard	Adobe+33	Data Stream Design+3
297. Serialize and Deserialize Binary Tree	Solve	Hard	Amazon+8	Binary Tree Breadth-First Search+4
300. Longest Increasing Subsequence	Solve	Medium	Accenture+78	Array Binary Search+1
316. Remove Duplicate Letters	Solve	Medium	Amazon+6	Greedy Monotonic Stack+2
328. Odd Even Linked List	Solve	Medium	Adobe+4	Linked List
329. Longest Increasing Path in a Matrix	Solve	Hard	Amazon+14	Array Breadth-First Search+6
353. Design Snake Game	Solve	Medium	Amazon+6	Array Design+3
354. Russian Doll Envelopes	Solve	Hard	Google+1	Array Binary Search+2
386. Lexicographical Numbers	Solve	Medium	Amazon+6	Depth-First Search Trie
394. Decode String	Solve	Medium	Adobe+16	Recursion Stack+1
399. Evaluate Division	Solve	Medium	Adobe+8	Array Breadth-First Search+5
403. Frog Jump	Solve	Hard	Adobe+21	Array Dynamic Programming
410. Split Array Largest Sum	Solve	Hard	Amazon+5	Array Binary Search+3
437. Path Sum III	Solve	Medium	DoorDash+3	Binary Tree Depth-First Search+1
486. Predict the Winner	Solve	Medium	Amazon+4	Array Dynamic Programming+3
487. Max Consecutive Ones II	Solve	Medium	Microsoft+1	Array Dynamic Programming+1