American Express vs Ola Cabs Interview Questions
American Express lists 23 LeetCode interview questions while Ola Cabs lists 24. They share 4 problems — 17% of American Express's bank and 17% of Ola Cabs's. Focus on the overlap first, then drill into 19 American Express-only and 20 Ola Cabs-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 4 overlapping problems first. These are the highest-yield questions for candidates interviewing at both American Express and Ola Cabs.
Step 2 — Company-specific depth: Add American Express-specific problems like Minimum Deletions to Make Character Frequencies Unique, Maximum Equal Frequency, Divide an Array Into Subarrays With Minimum Cost II 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
4 Shared Questions
High-priority problems to practice for both American Express and Ola Cabs.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock | Easy |
| 3Sum | Medium |
Unique to American Express (19)
Problems in American Express's list that do not appear at Ola Cabs.
Unique to Ola Cabs (20)
Problems in Ola Cabs's list that do not appear at American Express.
| Problem | Difficulty |
|---|---|
| Add Two Numbers | Medium |
| Trapping Rain Water | Hard |
| Validate Binary Search Tree | Medium |
| Group Anagrams | Medium |
| Binary Tree Maximum Path Sum | Hard |
| Longest Palindromic Substring | Medium |
| Climbing Stairs | Easy |
| House Robber | Medium |
| Number of Islands | Medium |
| Decode String | Medium |
| Container With Most Water | Medium |
| Alien Dictionary | Hard |
Frequently Asked Questions
How many LeetCode questions do American Express and Ola Cabs share?
American Express and Ola Cabs share 4 LeetCode interview questions. 19 problems appear only in American Express's list and 20 appear only in Ola Cabs's list.
What topics overlap most between American Express and Ola Cabs?
The most common shared topics between American Express and Ola Cabs are Array (3 shared questions), Hash Table (2 shared questions), String (1 shared questions), Sliding Window (1 shared questions), Dynamic Programming (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: American Express or Ola Cabs?
American Express has 8 Easy, 12 Medium, and 3 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 American Express and Ola Cabs?
Start with the 4 shared problems since they cover what both companies ask most often. Then add 19 American Express-specific and 20 Ola Cabs-specific questions to round out your prep.