Amazon vs Qualcomm Interview Questions
Amazon lists 1,968 LeetCode interview questions while Qualcomm lists 62. They share 60 problems — 3% of Amazon's bank and 97% of Qualcomm's. Focus on the overlap first, then drill into 1,908 Amazon-only and 2 Qualcomm-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 60 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Amazon and Qualcomm.
Step 2 — Company-specific depth: Add Amazon-specific problems like Best Time to Buy and Sell Stock, Group Anagrams, Add Two Numbers and Qualcomm-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
60 Shared Questions
High-priority problems to practice for both Amazon and Qualcomm.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| LRU Cache | Medium |
| Trapping Rain Water | Hard |
| Number of Islands | Medium |
| Longest Substring Without Repeating Characters | Medium |
| 3Sum | Medium |
| Merge Intervals | Medium |
| Container With Most Water | Medium |
| Median of Two Sorted Arrays | Hard |
| Valid Parentheses | Easy |
| Merge k Sorted Lists | Hard |
| Longest Common Prefix | Easy |
| Subarray Sum Equals K | Medium |
| Merge Sorted Array | Easy |
| Generate Parentheses | Medium |
| Palindrome Number | Easy |
| Majority Element | Easy |
| Merge Two Sorted Lists | Easy |
| Climbing Stairs | Easy |
| Course Schedule II | Medium |
| Rotate Image | Medium |
| Kth Largest Element in an Array | Medium |
| Remove Duplicates from Sorted Array | Easy |
| Unique Paths | Medium |
| Move Zeroes | Easy |
| Reverse Integer | Medium |
| Single Number | Easy |
| Serialize and Deserialize Binary Tree | Hard |
| Reverse Nodes in k-Group | Hard |
| Reverse Linked List | Easy |
Showing top 30 of 60 shared problems.
Unique to Amazon (1,908)
Problems in Amazon's list that do not appear at Qualcomm.
| Problem | Difficulty |
|---|---|
| Best Time to Buy and Sell Stock | Easy |
| Group Anagrams | Medium |
| Add Two Numbers | Medium |
| Reorganize String | Medium |
| Longest Palindromic Substring | Medium |
| Koko Eating Bananas | Medium |
| Course Schedule | Medium |
| Rotting Oranges | Medium |
| Search in Rotated Sorted Array | Medium |
| Top K Frequent Elements | Medium |
| Maximum Subarray | Medium |
| Longest Consecutive Sequence | Medium |
Unique to Qualcomm (2)
Problems in Qualcomm's list that do not appear at Amazon.
| Problem | Difficulty |
|---|---|
| Maximum Number of Ones | Hard |
| Count Array Pairs Divisible by K | Hard |
Frequently Asked Questions
How many LeetCode questions do Amazon and Qualcomm share?
Amazon and Qualcomm share 60 LeetCode interview questions. 1908 problems appear only in Amazon's list and 2 appear only in Qualcomm's list.
What topics overlap most between Amazon and Qualcomm?
The most common shared topics between Amazon and Qualcomm are Array (16 shared questions), Two Pointers (6 shared questions), Hash Table (5 shared questions), Linked List (5 shared questions), String (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Amazon or Qualcomm?
Amazon has 527 Easy, 1074 Medium, and 367 Hard questions. Qualcomm has 28 Easy, 25 Medium, and 9 Hard questions. Amazon has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Amazon and Qualcomm?
Start with the 60 shared problems since they cover what both companies ask most often. Then add 20 Amazon-specific and 2 Qualcomm-specific questions to round out your prep.