LinkedIn vs ServiceNow Interview Questions
LinkedIn lists 141 LeetCode interview questions while ServiceNow lists 71. They share 20 problems — 14% of LinkedIn's bank and 28% of ServiceNow's. Focus on the overlap first, then drill into 121 LinkedIn-only and 51 ServiceNow-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 20 overlapping problems first. These are the highest-yield questions for candidates interviewing at both LinkedIn and ServiceNow.
Step 2 — Company-specific depth: Add LinkedIn-specific problems like Max Stack, Nested List Weight Sum II, All O`one Data Structure and ServiceNow-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: LinkedIn skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
20 Shared Questions
High-priority problems to practice for both LinkedIn and ServiceNow.
| Problem | Difficulty |
|---|---|
| Word Ladder | Hard |
| Maximum Subarray | Medium |
| Valid Parentheses | Easy |
| Number of Islands | Medium |
| Maximum Product Subarray | Medium |
| Pow(x, n) | Medium |
| Letter Combinations of a Phone Number | Medium |
| Kth Largest Element in an Array | Medium |
| Merge Intervals | Medium |
| LRU Cache | Medium |
| Merge Two Sorted Lists | Easy |
| Two Sum | Easy |
| Combination Sum | Medium |
| Longest Palindromic Substring | Medium |
| Number of Visible People in a Queue | Hard |
| Longest Substring Without Repeating Characters | Medium |
| Median of Two Sorted Arrays | Hard |
| House Robber II | Medium |
| Next Permutation | Medium |
| Best Time to Buy and Sell Stock | Easy |
Unique to LinkedIn (121)
Problems in LinkedIn's list that do not appear at ServiceNow.
| Problem | Difficulty |
|---|---|
| Max Stack | Hard |
| Nested List Weight Sum II | Medium |
| All O`one Data Structure | Hard |
| Find the Celebrity | Medium |
| Nested List Weight Sum | Medium |
| Design Authentication Manager | Medium |
| Find Leaves of Binary Tree | Medium |
| Shortest Word Distance II | Medium |
| Max Consecutive Ones III | Medium |
| Can Place Flowers | Easy |
| Search in Rotated Sorted Array | Medium |
| Insert Delete GetRandom O(1) | Medium |
Unique to ServiceNow (51)
Problems in ServiceNow's list that do not appear at LinkedIn.
Frequently Asked Questions
How many LeetCode questions do LinkedIn and ServiceNow share?
LinkedIn and ServiceNow share 20 LeetCode interview questions. 121 problems appear only in LinkedIn's list and 51 appear only in ServiceNow's list.
What topics overlap most between LinkedIn and ServiceNow?
The most common shared topics between LinkedIn and ServiceNow are Array (12 shared questions), Hash Table (5 shared questions), String (5 shared questions), Dynamic Programming (5 shared questions), Divide and Conquer (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: LinkedIn or ServiceNow?
LinkedIn has 25 Easy, 90 Medium, and 26 Hard questions. ServiceNow has 7 Easy, 51 Medium, and 13 Hard questions. LinkedIn has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both LinkedIn and ServiceNow?
Start with the 20 shared problems since they cover what both companies ask most often. Then add 20 LinkedIn-specific and 20 ServiceNow-specific questions to round out your prep.