ServiceNow vs X Interview Questions
ServiceNow lists 71 LeetCode interview questions while X lists 51. They share 5 problems — 7% of ServiceNow's bank and 10% of X's. Focus on the overlap first, then drill into 66 ServiceNow-only and 46 X-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 5 overlapping problems first. These are the highest-yield questions for candidates interviewing at both ServiceNow and X.
Step 2 — Company-specific depth: Add ServiceNow-specific problems like Longest Substring Without Repeating Characters, Number of Distinct Roll Sequences, Lexicographically Smallest String After Operations With Constraint and X-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: X skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
5 Shared Questions
High-priority problems to practice for both ServiceNow and X.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Trapping Rain Water | Hard |
| Valid Parentheses | Easy |
| Merge Intervals | Medium |
| Reverse Linked List | Easy |
Unique to ServiceNow (66)
Problems in ServiceNow's list that do not appear at X.
Unique to X (46)
Problems in X's list that do not appear at ServiceNow.
| Problem | Difficulty |
|---|---|
| Tweet Counts Per Frequency | Medium |
| Flatten Nested List Iterator | Medium |
| Implement Trie (Prefix Tree) | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Design Twitter | Medium |
| Binary Gap | Easy |
| Regular Expression Matching | Hard |
| Integer to Roman | Medium |
| Word Break II | Hard |
| Alien Dictionary | Hard |
| Time Needed to Buy Tickets | Easy |
| Max Points on a Line | Hard |
Frequently Asked Questions
How many LeetCode questions do ServiceNow and X share?
ServiceNow and X share 5 LeetCode interview questions. 66 problems appear only in ServiceNow's list and 46 appear only in X's list.
What topics overlap most between ServiceNow and X?
The most common shared topics between ServiceNow and X are Linked List (2 shared questions), Array (2 shared questions), Stack (2 shared questions), Hash Table (1 shared questions), Design (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: ServiceNow or X?
ServiceNow has 7 Easy, 51 Medium, and 13 Hard questions. X has 8 Easy, 31 Medium, and 12 Hard questions. X has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both ServiceNow and X?
Start with the 5 shared problems since they cover what both companies ask most often. Then add 20 ServiceNow-specific and 20 X-specific questions to round out your prep.