IBM vs Ola Cabs Interview Questions
IBM lists 115 LeetCode interview questions while Ola Cabs lists 24. They share 11 problems — 10% of IBM's bank and 46% of Ola Cabs's. Focus on the overlap first, then drill into 104 IBM-only and 13 Ola Cabs-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 11 overlapping problems first. These are the highest-yield questions for candidates interviewing at both IBM and Ola Cabs.
Step 2 — Company-specific depth: Add IBM-specific problems like Find the Smallest Divisor Given a Threshold, Gray Code, Exclusive Time of Functions and Ola Cabs-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Ola Cabs skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
11 Shared Questions
High-priority problems to practice for both IBM and Ola Cabs.
| Problem | Difficulty |
|---|---|
| 3Sum | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Two Sum | Easy |
| Find Pivot Index | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Longest Palindromic Substring | Medium |
| Group Anagrams | Medium |
| Validate Binary Search Tree | Medium |
| Climbing Stairs | Easy |
| Trapping Rain Water | Hard |
| Find Minimum in Rotated Sorted Array | Medium |
Unique to IBM (104)
Problems in IBM's list that do not appear at Ola Cabs.
| Problem | Difficulty |
|---|---|
| Find the Smallest Divisor Given a Threshold | Medium |
| Gray Code | 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 |
| Count Ways to Group Overlapping Ranges | Medium |
| Meeting Rooms II | Medium |
| Rotate Image | Medium |
| Minimum Absolute Difference | Easy |
| Minimum Operations to Make All Array Elements Equal | Medium |
Unique to Ola Cabs (13)
Problems in Ola Cabs's list that do not appear at IBM.
| Problem | Difficulty |
|---|---|
| Add Two Numbers | Medium |
| Binary Tree Maximum Path Sum | Hard |
| House Robber | Medium |
| Number of Islands | Medium |
| Decode String | Medium |
| Container With Most Water | Medium |
| Alien Dictionary | Hard |
| Excel Sheet Column Title | Easy |
| First Missing Positive | Hard |
| Delete Node in a Linked List | Medium |
| All Nodes Distance K in Binary Tree | Medium |
| Unique Paths | Medium |
Frequently Asked Questions
How many LeetCode questions do IBM and Ola Cabs share?
IBM and Ola Cabs share 11 LeetCode interview questions. 104 problems appear only in IBM's list and 13 appear only in Ola Cabs's list.
What topics overlap most between IBM and Ola Cabs?
The most common shared topics between IBM and Ola Cabs are Array (7 shared questions), Dynamic Programming (4 shared questions), Two Pointers (3 shared questions), Hash Table (3 shared questions), String (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: IBM or Ola Cabs?
IBM has 33 Easy, 73 Medium, and 9 Hard questions. Ola Cabs has 5 Easy, 14 Medium, and 5 Hard questions. Ola Cabs has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both IBM and Ola Cabs?
Start with the 11 shared problems since they cover what both companies ask most often. Then add 20 IBM-specific and 13 Ola Cabs-specific questions to round out your prep.