Epam Systems vs Ola Cabs Interview Questions
Epam Systems lists 46 LeetCode interview questions while Ola Cabs lists 24. They share 11 problems — 24% of Epam Systems's bank and 46% of Ola Cabs's. Focus on the overlap first, then drill into 35 Epam Systems-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 Epam Systems and Ola Cabs.
Step 2 — Company-specific depth: Add Epam Systems-specific problems like Minimum Operations to Make a Uni-Value Grid, Valid Parentheses, Move Zeroes 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 Epam Systems and Ola Cabs.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Longest Palindromic Substring | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Group Anagrams | Medium |
| House Robber | Medium |
| Trapping Rain Water | Hard |
| 3Sum | Medium |
| Add Two Numbers | Medium |
| First Missing Positive | Hard |
| Unique Paths | Medium |
Unique to Epam Systems (35)
Problems in Epam Systems's list that do not appear at Ola Cabs.
| Problem | Difficulty |
|---|---|
| Minimum Operations to Make a Uni-Value Grid | Medium |
| Valid Parentheses | Easy |
| Move Zeroes | Easy |
| Longest Common Prefix | Easy |
| Merge Sorted Array | Easy |
| Valid Anagram | Easy |
| Rotate Array | Medium |
| Reverse String | Easy |
| Partition Equal Subset Sum | Medium |
| Longest Consecutive Sequence | Medium |
| String Compression | Medium |
| Reverse Vowels of a String | Easy |
Unique to Ola Cabs (13)
Problems in Ola Cabs's list that do not appear at Epam Systems.
| Problem | Difficulty |
|---|---|
| Validate Binary Search Tree | Medium |
| Binary Tree Maximum Path Sum | Hard |
| Climbing Stairs | Easy |
| Number of Islands | Medium |
| Decode String | Medium |
| Container With Most Water | Medium |
| Alien Dictionary | Hard |
| Find Pivot Index | Easy |
| Find Minimum in Rotated Sorted Array | Medium |
| Excel Sheet Column Title | Easy |
| Delete Node in a Linked List | Medium |
| All Nodes Distance K in Binary Tree | Medium |
Frequently Asked Questions
How many LeetCode questions do Epam Systems and Ola Cabs share?
Epam Systems and Ola Cabs share 11 LeetCode interview questions. 35 problems appear only in Epam Systems's list and 13 appear only in Ola Cabs's list.
What topics overlap most between Epam Systems and Ola Cabs?
The most common shared topics between Epam Systems and Ola Cabs are Array (7 shared questions), Dynamic Programming (5 shared questions), Hash Table (4 shared questions), String (3 shared questions), Two Pointers (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Epam Systems or Ola Cabs?
Epam Systems has 16 Easy, 27 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 Epam Systems and Ola Cabs?
Start with the 11 shared problems since they cover what both companies ask most often. Then add 20 Epam Systems-specific and 13 Ola Cabs-specific questions to round out your prep.