Salesforce vs ServiceNow Interview Questions
Salesforce lists 188 LeetCode interview questions while ServiceNow lists 71. They share 36 problems — 19% of Salesforce's bank and 51% of ServiceNow's. Focus on the overlap first, then drill into 152 Salesforce-only and 35 ServiceNow-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 36 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Salesforce and ServiceNow.
Step 2 — Company-specific depth: Add Salesforce-specific problems like Minimum Operations to Reduce an Integer to 0, Closest Equal Element Queries, Smallest Substring With Identical Characters I and ServiceNow-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Salesforce skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
36 Shared Questions
High-priority problems to practice for both Salesforce and ServiceNow.
| Problem | Difficulty |
|---|---|
| String Compression | Medium |
| Time Needed to Rearrange a Binary String | Medium |
| LFU Cache | Hard |
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Group Anagrams | Medium |
| Number of Islands | Medium |
| Merge Intervals | Medium |
| Longest Common Subsequence | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Longest Palindromic Substring | Medium |
| Trapping Rain Water | Hard |
| Two Sum | Easy |
| Zigzag Conversion | Medium |
| Kth Largest Element in an Array | Medium |
| Top K Frequent Elements | Medium |
| Asteroid Collision | Medium |
| Subarrays with K Different Integers | Hard |
| Container With Most Water | Medium |
| Coin Change | Medium |
| Maximum Subarray | Medium |
| Median of Two Sorted Arrays | Hard |
| Word Ladder | Hard |
| Gas Station | Medium |
| Sort Colors | Medium |
| Rotting Oranges | Medium |
| Generate Parentheses | Medium |
| Number of Visible People in a Queue | Hard |
| Merge Two Sorted Lists | Easy |
| Valid Parentheses | Easy |
Showing top 30 of 36 shared problems.
Unique to Salesforce (152)
Problems in Salesforce's list that do not appear at ServiceNow.
Unique to ServiceNow (35)
Problems in ServiceNow's list that do not appear at Salesforce.
Frequently Asked Questions
How many LeetCode questions do Salesforce and ServiceNow share?
Salesforce and ServiceNow share 36 LeetCode interview questions. 152 problems appear only in Salesforce's list and 35 appear only in ServiceNow's list.
What topics overlap most between Salesforce and ServiceNow?
The most common shared topics between Salesforce and ServiceNow are Array (18 shared questions), String (10 shared questions), Dynamic Programming (8 shared questions), Hash Table (8 shared questions), Two Pointers (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Salesforce or ServiceNow?
Salesforce has 25 Easy, 112 Medium, and 51 Hard questions. ServiceNow has 7 Easy, 51 Medium, and 13 Hard questions. Salesforce has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Salesforce and ServiceNow?
Start with the 36 shared problems since they cover what both companies ask most often. Then add 20 Salesforce-specific and 20 ServiceNow-specific questions to round out your prep.