ServiceNow vs TikTok Interview Questions
ServiceNow lists 71 LeetCode interview questions while TikTok lists 351. They share 49 problems — 69% of ServiceNow's bank and 14% of TikTok's. Focus on the overlap first, then drill into 22 ServiceNow-only and 302 TikTok-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 49 overlapping problems first. These are the highest-yield questions for candidates interviewing at both ServiceNow and TikTok.
Step 2 — Company-specific depth: Add ServiceNow-specific problems like Number of Distinct Roll Sequences, Lexicographically Smallest String After Operations With Constraint, Find Minimum Diameter After Merging Two Trees and TikTok-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: TikTok skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
49 Shared Questions
High-priority problems to practice for both ServiceNow and TikTok.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Trapping Rain Water | Hard |
| Number of Islands | Medium |
| Generate Parentheses | Medium |
| String Compression | Medium |
| Valid Parentheses | Easy |
| Container With Most Water | Medium |
| Pacific Atlantic Water Flow | Medium |
| Sliding Window Maximum | Hard |
| Best Time to Buy and Sell Stock II | Medium |
| Asteroid Collision | Medium |
| Two Sum | Easy |
| Longest Palindromic Substring | Medium |
| Group Anagrams | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Move Zeroes | Easy |
| Kth Largest Element in an Array | Medium |
| Number of Visible People in a Queue | Hard |
| LFU Cache | Hard |
| Coin Change | Medium |
| Jump Game II | Medium |
| Merge Two Sorted Lists | Easy |
| Maximum Subarray | Medium |
| Rotting Oranges | Medium |
| Median of Two Sorted Arrays | Hard |
| Merge Intervals | Medium |
| Largest Number | Medium |
| Daily Temperatures | Medium |
| Maximum Product Subarray | Medium |
Showing top 30 of 49 shared problems.
Unique to ServiceNow (22)
Problems in ServiceNow's list that do not appear at TikTok.
Unique to TikTok (302)
Problems in TikTok's list that do not appear at ServiceNow.
| Problem | Difficulty |
|---|---|
| Longest Increasing Subsequence | Medium |
| Meeting Rooms II | Medium |
| Course Schedule II | Medium |
| Course Schedule | Medium |
| Subarray With Elements Greater Than Varying Threshold | Hard |
| Text Justification | Hard |
| Decode String | Medium |
| Word Search | Medium |
| N-Queens | Hard |
| Minimum Window Substring | Hard |
| Search in Rotated Sorted Array | Medium |
| 3Sum | Medium |
Frequently Asked Questions
How many LeetCode questions do ServiceNow and TikTok share?
ServiceNow and TikTok share 49 LeetCode interview questions. 22 problems appear only in ServiceNow's list and 302 appear only in TikTok's list.
What topics overlap most between ServiceNow and TikTok?
The most common shared topics between ServiceNow and TikTok are Array (22 shared questions), Dynamic Programming (9 shared questions), String (7 shared questions), Hash Table (5 shared questions), Two Pointers (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: ServiceNow or TikTok?
ServiceNow has 7 Easy, 51 Medium, and 13 Hard questions. TikTok has 34 Easy, 245 Medium, and 72 Hard questions. TikTok has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both ServiceNow and TikTok?
Start with the 49 shared problems since they cover what both companies ask most often. Then add 20 ServiceNow-specific and 20 TikTok-specific questions to round out your prep.