IBM vs Uber Interview Questions
IBM lists 115 LeetCode interview questions while Uber lists 362. They share 37 problems — 32% of IBM's bank and 10% of Uber's. Focus on the overlap first, then drill into 78 IBM-only and 325 Uber-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 37 overlapping problems first. These are the highest-yield questions for candidates interviewing at both IBM and Uber.
Step 2 — Company-specific depth: Add IBM-specific problems like Find the Smallest Divisor Given a Threshold, Gray Code, 3Sum and Uber-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Uber skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
37 Shared Questions
High-priority problems to practice for both IBM and Uber.
| Problem | Difficulty |
|---|---|
| Exclusive Time of Functions | Medium |
| Fizz Buzz | Easy |
| Roman to Integer | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Two Sum | Easy |
| Meeting Rooms II | Medium |
| Rotate Image | Medium |
| Merge Intervals | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Longest Common Prefix | Easy |
| Valid Parentheses | Easy |
| Count Binary Substrings | Easy |
| Make Lexicographically Smallest Array by Swapping Elements | Medium |
| Merge Strings Alternately | Easy |
| Letter Combinations of a Phone Number | Medium |
| Longest Consecutive Sequence | Medium |
| Longest Palindromic Substring | Medium |
| Maximum Subarray | Medium |
| Spiral Matrix | Medium |
| Group Anagrams | Medium |
| Climbing Stairs | Easy |
| Trapping Rain Water | Hard |
| Product of Array Except Self | Medium |
| Next Permutation | Medium |
| Longest Increasing Subsequence | Medium |
| Subarray Sum Equals K | Medium |
| Median of Two Sorted Arrays | Hard |
| Subsets | Medium |
| Find Minimum in Rotated Sorted Array | Medium |
| Reverse Integer | Medium |
Showing top 30 of 37 shared problems.
Unique to IBM (78)
Problems in IBM's list that do not appear at Uber.
Unique to Uber (325)
Problems in Uber's list that do not appear at IBM.
| Problem | Difficulty |
|---|---|
| Bus Routes | Hard |
| Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit | Medium |
| Alien Dictionary | Hard |
| Number of Islands | Medium |
| Number of Islands II | Hard |
| Squares of a Sorted Array | Easy |
| Construct Quad Tree | Medium |
| Kth Smallest Element in a BST | Medium |
| First Unique Number | Medium |
| Find the Closest Palindrome | Hard |
| Word Search | Medium |
| Insert Delete GetRandom O(1) | Medium |
Frequently Asked Questions
How many LeetCode questions do IBM and Uber share?
IBM and Uber share 37 LeetCode interview questions. 78 problems appear only in IBM's list and 325 appear only in Uber's list.
What topics overlap most between IBM and Uber?
The most common shared topics between IBM and Uber are Array (19 shared questions), String (10 shared questions), Hash Table (7 shared questions), Dynamic Programming (6 shared questions), Two Pointers (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: IBM or Uber?
IBM has 33 Easy, 73 Medium, and 9 Hard questions. Uber has 45 Easy, 215 Medium, and 102 Hard questions. Uber has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both IBM and Uber?
Start with the 37 shared problems since they cover what both companies ask most often. Then add 20 IBM-specific and 20 Uber-specific questions to round out your prep.