Ola Cabs vs TCS Interview Questions
Ola Cabs lists 24 LeetCode interview questions while TCS lists 228. They share 18 problems — 75% of Ola Cabs's bank and 8% of TCS's. Focus on the overlap first, then drill into 6 Ola Cabs-only and 210 TCS-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 18 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Ola Cabs and TCS.
Step 2 — Company-specific depth: Add Ola Cabs-specific problems like Validate Binary Search Tree, Decode String, Alien Dictionary and TCS-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
18 Shared Questions
High-priority problems to practice for both Ola Cabs and TCS.
| Problem | Difficulty |
|---|---|
| Longest Substring Without Repeating Characters | Medium |
| Add Two Numbers | Medium |
| Trapping Rain Water | Hard |
| Two Sum | Easy |
| Group Anagrams | Medium |
| Binary Tree Maximum Path Sum | Hard |
| Longest Palindromic Substring | Medium |
| Climbing Stairs | Easy |
| House Robber | Medium |
| Number of Islands | Medium |
| Container With Most Water | Medium |
| 3Sum | Medium |
| Find Pivot Index | Easy |
| Find Minimum in Rotated Sorted Array | Medium |
| First Missing Positive | Hard |
| Best Time to Buy and Sell Stock | Easy |
| Unique Paths | Medium |
| Word Ladder | Hard |
Unique to Ola Cabs (6)
Problems in Ola Cabs's list that do not appear at TCS.
| Problem | Difficulty |
|---|---|
| Validate Binary Search Tree | Medium |
| Decode String | Medium |
| Alien Dictionary | Hard |
| Excel Sheet Column Title | Easy |
| Delete Node in a Linked List | Medium |
| All Nodes Distance K in Binary Tree | Medium |
Unique to TCS (210)
Problems in TCS's list that do not appear at Ola Cabs.
| Problem | Difficulty |
|---|---|
| Friday Purchases I | Medium |
| Palindrome Number | Easy |
| Maximum Subarray | Medium |
| Move Zeroes | Easy |
| Majority Element | Easy |
| Longest Common Prefix | Easy |
| Sort Colors | Medium |
| Valid Anagram | Easy |
| Find the Index of the First Occurrence in a String | Easy |
| Single Number | Easy |
| Second Highest Salary | Medium |
| Valid Parentheses | Easy |
Frequently Asked Questions
How many LeetCode questions do Ola Cabs and TCS share?
Ola Cabs and TCS share 18 LeetCode interview questions. 6 problems appear only in Ola Cabs's list and 210 appear only in TCS's list.
What topics overlap most between Ola Cabs and TCS?
The most common shared topics between Ola Cabs and TCS are Array (11 shared questions), Dynamic Programming (7 shared questions), Hash Table (5 shared questions), String (4 shared questions), Two Pointers (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Ola Cabs or TCS?
Ola Cabs has 5 Easy, 14 Medium, and 5 Hard questions. TCS has 99 Easy, 108 Medium, and 21 Hard questions. Ola Cabs has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Ola Cabs and TCS?
Start with the 18 shared problems since they cover what both companies ask most often. Then add 6 Ola Cabs-specific and 20 TCS-specific questions to round out your prep.