Amazon vs Infosys Interview Questions
Amazon lists 1,968 LeetCode interview questions while Infosys lists 105. They share 87 problems — 4% of Amazon's bank and 83% of Infosys's. Focus on the overlap first, then drill into 1,881 Amazon-only and 18 Infosys-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 87 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Amazon and Infosys.
Step 2 — Company-specific depth: Add Amazon-specific problems like LRU Cache, Reorganize String, Course Schedule and Infosys-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Amazon skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
87 Shared Questions
High-priority problems to practice for both Amazon and Infosys.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Trapping Rain Water | Hard |
| Number of Islands | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Group Anagrams | Medium |
| Add Two Numbers | Medium |
| 3Sum | Medium |
| Longest Palindromic Substring | Medium |
| Merge Intervals | Medium |
| Container With Most Water | Medium |
| Median of Two Sorted Arrays | Hard |
| Koko Eating Bananas | Medium |
| Valid Parentheses | Easy |
| Longest Common Prefix | Easy |
| Subarray Sum Equals K | Medium |
| Merge Sorted Array | Easy |
| Search in Rotated Sorted Array | Medium |
| Maximum Subarray | Medium |
| Longest Consecutive Sequence | Medium |
| Generate Parentheses | Medium |
| Palindrome Number | Easy |
| Product of Array Except Self | Medium |
| Merge Two Sorted Lists | Easy |
| Jump Game | Medium |
| Climbing Stairs | Easy |
| House Robber | Medium |
| Spiral Matrix | Medium |
| Valid Anagram | Easy |
| Rotate Image | Medium |
Showing top 30 of 87 shared problems.
Unique to Amazon (1,881)
Problems in Amazon's list that do not appear at Infosys.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Reorganize String | Medium |
| Course Schedule | Medium |
| Merge k Sorted Lists | Hard |
| Rotting Oranges | Medium |
| Top K Frequent Elements | Medium |
| Copy List with Random Pointer | Medium |
| Lowest Common Ancestor of a Binary Tree | Medium |
| Word Ladder | Hard |
| Majority Element | Easy |
| Letter Combinations of a Phone Number | Medium |
| Course Schedule II | Medium |
Unique to Infosys (18)
Problems in Infosys's list that do not appear at Amazon.
Frequently Asked Questions
How many LeetCode questions do Amazon and Infosys share?
Amazon and Infosys share 87 LeetCode interview questions. 1881 problems appear only in Amazon's list and 18 appear only in Infosys's list.
What topics overlap most between Amazon and Infosys?
The most common shared topics between Amazon and Infosys are Array (21 shared questions), Dynamic Programming (8 shared questions), String (7 shared questions), Hash Table (6 shared questions), Two Pointers (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Amazon or Infosys?
Amazon has 527 Easy, 1074 Medium, and 367 Hard questions. Infosys has 32 Easy, 57 Medium, and 16 Hard questions. Amazon has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Amazon and Infosys?
Start with the 87 shared problems since they cover what both companies ask most often. Then add 20 Amazon-specific and 18 Infosys-specific questions to round out your prep.