ServiceNow vs Twitter Interview Questions
ServiceNow lists 71 LeetCode interview questions while Twitter lists 53. They share 6 problems — 8% of ServiceNow's bank and 11% of Twitter's. Focus on the overlap first, then drill into 65 ServiceNow-only and 47 Twitter-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 6 overlapping problems first. These are the highest-yield questions for candidates interviewing at both ServiceNow and Twitter.
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 Twitter-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Twitter skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
6 Shared Questions
High-priority problems to practice for both ServiceNow and Twitter.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Trapping Rain Water | Hard |
| Valid Parentheses | Easy |
| Rotting Oranges | Medium |
| Merge Intervals | Medium |
| Reverse Linked List | Easy |
Unique to ServiceNow (65)
Problems in ServiceNow's list that do not appear at Twitter.
Unique to Twitter (47)
Problems in Twitter's list that do not appear at ServiceNow.
| Problem | Difficulty |
|---|---|
| Regular Expression Matching | Hard |
| Integer to Roman | Medium |
| Merge k Sorted Lists | Hard |
| Multiply Strings | Medium |
| Wildcard Matching | Hard |
| Permutation Sequence | Hard |
| Pascal's Triangle | Easy |
| Word Break II | Hard |
| Time Needed to Buy Tickets | Easy |
| Max Points on a Line | Hard |
| One Edit Distance | Medium |
| Happy Number | Easy |
Frequently Asked Questions
How many LeetCode questions do ServiceNow and Twitter share?
ServiceNow and Twitter share 6 LeetCode interview questions. 65 problems appear only in ServiceNow's list and 47 appear only in Twitter's list.
What topics overlap most between ServiceNow and Twitter?
The most common shared topics between ServiceNow and Twitter are Array (3 shared questions), Linked List (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 Twitter?
ServiceNow has 7 Easy, 51 Medium, and 13 Hard questions. Twitter has 8 Easy, 33 Medium, and 12 Hard questions. Twitter has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both ServiceNow and Twitter?
Start with the 6 shared problems since they cover what both companies ask most often. Then add 20 ServiceNow-specific and 20 Twitter-specific questions to round out your prep.