IBM vs Rubrik Interview Questions
IBM lists 115 LeetCode interview questions while Rubrik lists 35. They share 3 problems — 3% of IBM's bank and 9% of Rubrik's. Focus on the overlap first, then drill into 112 IBM-only and 32 Rubrik-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 3 overlapping problems first. These are the highest-yield questions for candidates interviewing at both IBM and Rubrik.
Step 2 — Company-specific depth: Add IBM-specific problems like Find the Smallest Divisor Given a Threshold, Gray Code, 3Sum and Rubrik-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Rubrik skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
3 Shared Questions
High-priority problems to practice for both IBM and Rubrik.
| Problem | Difficulty |
|---|---|
| Next Permutation | Medium |
| LRU Cache | Medium |
| Task Scheduler | Medium |
Unique to IBM (112)
Problems in IBM's list that do not appear at Rubrik.
| Problem | Difficulty |
|---|---|
| Find the Smallest Divisor Given a Threshold | Medium |
| Gray Code | Medium |
| 3Sum | Medium |
| Exclusive Time of Functions | Medium |
| Integer to Roman | Medium |
| Minimum Operations to Make Columns Strictly Increasing | Easy |
| Fizz Buzz | Easy |
| Roman to Integer | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Count Ways to Group Overlapping Ranges | Medium |
| Two Sum | Easy |
| Meeting Rooms II | Medium |
Unique to Rubrik (32)
Problems in Rubrik's list that do not appear at IBM.
Frequently Asked Questions
How many LeetCode questions do IBM and Rubrik share?
IBM and Rubrik share 3 LeetCode interview questions. 112 problems appear only in IBM's list and 32 appear only in Rubrik's list.
What topics overlap most between IBM and Rubrik?
The most common shared topics between IBM and Rubrik are Array (2 shared questions), Hash Table (2 shared questions), Two Pointers (1 shared questions), Linked List (1 shared questions), Design (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: IBM or Rubrik?
IBM has 33 Easy, 73 Medium, and 9 Hard questions. Rubrik has 2 Easy, 22 Medium, and 11 Hard questions. Rubrik has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both IBM and Rubrik?
Start with the 3 shared problems since they cover what both companies ask most often. Then add 20 IBM-specific and 20 Rubrik-specific questions to round out your prep.