LinkedIn vs Qualcomm Interview Questions
LinkedIn lists 141 LeetCode interview questions while Qualcomm lists 62. They share 19 problems — 13% of LinkedIn's bank and 31% of Qualcomm's. Focus on the overlap first, then drill into 122 LinkedIn-only and 43 Qualcomm-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 19 overlapping problems first. These are the highest-yield questions for candidates interviewing at both LinkedIn and Qualcomm.
Step 2 — Company-specific depth: Add LinkedIn-specific problems like Max Stack, Nested List Weight Sum II, All O`one Data Structure and Qualcomm-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: LinkedIn skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
19 Shared Questions
High-priority problems to practice for both LinkedIn and Qualcomm.
| Problem | Difficulty |
|---|---|
| Valid Parentheses | Easy |
| Number of Islands | Medium |
| Maximum Product Subarray | Medium |
| Pow(x, n) | Medium |
| Serialize and Deserialize Binary Tree | Hard |
| Maximum Depth of Binary Tree | Easy |
| Kth Largest Element in an Array | Medium |
| Merge Intervals | Medium |
| LRU Cache | Medium |
| Merge Two Sorted Lists | Easy |
| Permutations | Medium |
| Two Sum | Easy |
| Merge k Sorted Lists | Hard |
| Edit Distance | Medium |
| Merge Sorted Array | Easy |
| Course Schedule II | Medium |
| Moving Average from Data Stream | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Median of Two Sorted Arrays | Hard |
Unique to LinkedIn (122)
Problems in LinkedIn's list that do not appear at Qualcomm.
| Problem | Difficulty |
|---|---|
| Max Stack | Hard |
| Nested List Weight Sum II | Medium |
| All O`one Data Structure | Hard |
| Word Ladder | Hard |
| Find the Celebrity | Medium |
| Nested List Weight Sum | Medium |
| Design Authentication Manager | Medium |
| Find Leaves of Binary Tree | Medium |
| Shortest Word Distance II | Medium |
| Maximum Subarray | Medium |
| Max Consecutive Ones III | Medium |
| Can Place Flowers | Easy |
Unique to Qualcomm (43)
Problems in Qualcomm's list that do not appear at LinkedIn.
| Problem | Difficulty |
|---|---|
| String Compression III | Medium |
| Maximum Number of Ones | Hard |
| Reverse Nodes in k-Group | Hard |
| Reverse Linked List | Easy |
| Palindrome Number | Easy |
| Remove Nth Node From End of List | Medium |
| Reverse Bits | Easy |
| 3Sum | Medium |
| Rotate Image | Medium |
| Power of Two | Easy |
| Rectangle Overlap | Easy |
| Linked List Cycle | Easy |
Frequently Asked Questions
How many LeetCode questions do LinkedIn and Qualcomm share?
LinkedIn and Qualcomm share 19 LeetCode interview questions. 122 problems appear only in LinkedIn's list and 43 appear only in Qualcomm's list.
What topics overlap most between LinkedIn and Qualcomm?
The most common shared topics between LinkedIn and Qualcomm are Array (9 shared questions), String (4 shared questions), Depth-First Search (4 shared questions), Breadth-First Search (4 shared questions), Design (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: LinkedIn or Qualcomm?
LinkedIn has 25 Easy, 90 Medium, and 26 Hard questions. Qualcomm has 28 Easy, 25 Medium, and 9 Hard questions. LinkedIn has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both LinkedIn and Qualcomm?
Start with the 19 shared problems since they cover what both companies ask most often. Then add 20 LinkedIn-specific and 20 Qualcomm-specific questions to round out your prep.