Microsoft vs Qualcomm Interview Questions
Microsoft lists 192 LeetCode interview questions while Qualcomm lists 62. They share 42 problems — 22% of Microsoft's bank and 68% of Qualcomm's. Focus on the overlap first, then drill into 150 Microsoft-only and 20 Qualcomm-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 42 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Microsoft and Qualcomm.
Step 2 — Company-specific depth: Add Microsoft-specific problems like Add Two Numbers, Longest Palindromic Substring, Single Element in a Sorted Array and Qualcomm-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Microsoft skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
42 Shared Questions
High-priority problems to practice for both Microsoft and Qualcomm.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Merge Sorted Array | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Trapping Rain Water | Hard |
| Merge Intervals | Medium |
| Median of Two Sorted Arrays | Hard |
| Valid Parentheses | Easy |
| 3Sum | Medium |
| Reverse Nodes in k-Group | Hard |
| Merge Two Sorted Lists | Easy |
| Climbing Stairs | Easy |
| Container With Most Water | Medium |
| Rotate Image | Medium |
| Palindrome Number | Easy |
| Merge k Sorted Lists | Hard |
| Longest Common Prefix | Easy |
| Remove Duplicates from Sorted Array | Easy |
| Reverse Integer | Medium |
| Number of Islands | Medium |
| Generate Parentheses | Medium |
| Move Zeroes | Easy |
| String to Integer (atoi) | Medium |
| Find the Index of the First Occurrence in a String | Easy |
| Permutations | Medium |
| Unique Paths | Medium |
| Swap Nodes in Pairs | Medium |
| Pow(x, n) | Medium |
| Single Number | Easy |
| Subarray Sum Equals K | Medium |
| LRU Cache | Medium |
Showing top 30 of 42 shared problems.
Unique to Microsoft (150)
Problems in Microsoft's list that do not appear at Qualcomm.
| Problem | Difficulty |
|---|---|
| Add Two Numbers | Medium |
| Longest Palindromic Substring | Medium |
| Single Element in a Sorted Array | Medium |
| Maximum Subarray | Medium |
| Group Anagrams | Medium |
| Search in Rotated Sorted Array | Medium |
| Roman to Integer | Easy |
| Spiral Matrix | Medium |
| Sort Colors | Medium |
| Create Hello World Function | Easy |
| Set Matrix Zeroes | Medium |
| Letter Combinations of a Phone Number | Medium |
Unique to Qualcomm (20)
Problems in Qualcomm's list that do not appear at Microsoft.
| Problem | Difficulty |
|---|---|
| String Compression III | Medium |
| Maximum Number of Ones | Hard |
| Reverse Bits | Easy |
| Power of Two | Easy |
| Rectangle Overlap | Easy |
| Reverse String | Easy |
| Middle of the Linked List | Easy |
| Design Circular Queue | Medium |
| Count Array Pairs Divisible by K | Hard |
| Implement Queue using Stacks | Easy |
| Count the Number of Fair Pairs | Medium |
| Last Substring in Lexicographical Order | Hard |
Frequently Asked Questions
How many LeetCode questions do Microsoft and Qualcomm share?
Microsoft and Qualcomm share 42 LeetCode interview questions. 150 problems appear only in Microsoft's list and 20 appear only in Qualcomm's list.
What topics overlap most between Microsoft and Qualcomm?
The most common shared topics between Microsoft and Qualcomm are Array (14 shared questions), Two Pointers (7 shared questions), String (6 shared questions), Math (6 shared questions), Linked List (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Microsoft or Qualcomm?
Microsoft has 55 Easy, 109 Medium, and 28 Hard questions. Qualcomm has 28 Easy, 25 Medium, and 9 Hard questions. Microsoft has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Microsoft and Qualcomm?
Start with the 42 shared problems since they cover what both companies ask most often. Then add 20 Microsoft-specific and 20 Qualcomm-specific questions to round out your prep.