Google vs Qualcomm Interview Questions
Google lists 2,305 LeetCode interview questions while Qualcomm lists 62. They share 57 problems — 2% of Google's bank and 92% of Qualcomm's. Focus on the overlap first, then drill into 2,248 Google-only and 5 Qualcomm-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 57 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Google and Qualcomm.
Step 2 — Company-specific depth: Add Google-specific problems like Add Two Numbers, Best Time to Buy and Sell Stock, Create Hello World Function and Qualcomm-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Google skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
57 Shared Questions
High-priority problems to practice for both Google and Qualcomm.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Trapping Rain Water | Hard |
| Median of Two Sorted Arrays | Hard |
| Longest Common Prefix | Easy |
| Palindrome Number | Easy |
| Merge Sorted Array | Easy |
| Longest Substring Without Repeating Characters | Medium |
| 3Sum | Medium |
| Container With Most Water | Medium |
| Valid Parentheses | Easy |
| Majority Element | Easy |
| Merge Intervals | Medium |
| Number of Islands | Medium |
| Reverse Integer | Medium |
| Remove Duplicates from Sorted Array | Easy |
| Subarray Sum Equals K | Medium |
| Climbing Stairs | Easy |
| Merge Two Sorted Lists | Easy |
| Generate Parentheses | Medium |
| Reverse Linked List | Easy |
| Move Zeroes | Easy |
| LRU Cache | Medium |
| Single Number | Easy |
| Find the Index of the First Occurrence in a String | Easy |
| Kth Largest Element in an Array | Medium |
| Rotate Image | Medium |
| Pow(x, n) | Medium |
| Power of Two | Easy |
| Remove Nth Node From End of List | Medium |
| Permutations | Medium |
Showing top 30 of 57 shared problems.
Unique to Google (2,248)
Problems in Google's list that do not appear at Qualcomm.
| Problem | Difficulty |
|---|---|
| Add Two Numbers | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Create Hello World Function | Easy |
| Merge Strings Alternately | Easy |
| Longest Palindromic Substring | Medium |
| Longest Consecutive Sequence | Medium |
| Recyclable and Low Fat Products | Easy |
| Roman to Integer | Easy |
| Maximum Subarray | Medium |
| Next Permutation | Medium |
| Spiral Matrix | Medium |
| Meeting Rooms II | Medium |
Unique to Qualcomm (5)
Problems in Qualcomm's list that do not appear at Google.
| Problem | Difficulty |
|---|---|
| Maximum Number of Ones | Hard |
| Rectangle Overlap | Easy |
| Count Array Pairs Divisible by K | Hard |
| Last Substring in Lexicographical Order | Hard |
| Design Memory Allocator | Medium |
Frequently Asked Questions
How many LeetCode questions do Google and Qualcomm share?
Google and Qualcomm share 57 LeetCode interview questions. 2248 problems appear only in Google's list and 5 appear only in Qualcomm's list.
What topics overlap most between Google and Qualcomm?
The most common shared topics between Google and Qualcomm are Array (17 shared questions), Two Pointers (8 shared questions), Math (6 shared questions), Hash Table (5 shared questions), String (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Google or Qualcomm?
Google has 601 Easy, 1205 Medium, and 499 Hard questions. Qualcomm has 28 Easy, 25 Medium, and 9 Hard questions. Google has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Google and Qualcomm?
Start with the 57 shared problems since they cover what both companies ask most often. Then add 20 Google-specific and 5 Qualcomm-specific questions to round out your prep.