ServiceNow vs Snap Interview Questions
ServiceNow lists 71 LeetCode interview questions while Snap lists 84. They share 14 problems — 20% of ServiceNow's bank and 17% of Snap's. Focus on the overlap first, then drill into 57 ServiceNow-only and 70 Snap-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 14 overlapping problems first. These are the highest-yield questions for candidates interviewing at both ServiceNow and Snap.
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 Snap-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Snap skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
14 Shared Questions
High-priority problems to practice for both ServiceNow and Snap.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Number of Islands | Medium |
| String Compression | Medium |
| Group Anagrams | Medium |
| LFU Cache | Hard |
| Merge Intervals | Medium |
| Reverse Linked List | Easy |
| Number of Distinct Islands | Medium |
| Top K Frequent Elements | Medium |
| Reverse Words in a String | Medium |
| Letter Combinations of a Phone Number | Medium |
| Word Ladder | Hard |
| Combination Sum | Medium |
Unique to ServiceNow (57)
Problems in ServiceNow's list that do not appear at Snap.
Unique to Snap (70)
Problems in Snap's list that do not appear at ServiceNow.
| Problem | Difficulty |
|---|---|
| Meeting Rooms II | Medium |
| Minimum Window Substring | Hard |
| Design Log Storage System | Medium |
| Making A Large Island | Hard |
| Bus Routes | Hard |
| Word Break II | Hard |
| Basic Calculator II | Medium |
| Bricks Falling When Hit | Hard |
| Alien Dictionary | Hard |
| Closest Binary Search Tree Value | Easy |
| Word Abbreviation | Hard |
| Remove K Digits | Medium |
Frequently Asked Questions
How many LeetCode questions do ServiceNow and Snap share?
ServiceNow and Snap share 14 LeetCode interview questions. 57 problems appear only in ServiceNow's list and 70 appear only in Snap's list.
What topics overlap most between ServiceNow and Snap?
The most common shared topics between ServiceNow and Snap are Hash Table (8 shared questions), String (6 shared questions), Array (6 shared questions), Sorting (4 shared questions), Linked List (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: ServiceNow or Snap?
ServiceNow has 7 Easy, 51 Medium, and 13 Hard questions. Snap has 5 Easy, 52 Medium, and 27 Hard questions. Snap has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both ServiceNow and Snap?
Start with the 14 shared problems since they cover what both companies ask most often. Then add 20 ServiceNow-specific and 20 Snap-specific questions to round out your prep.