Databricks vs Qualcomm Interview Questions
Databricks lists 31 LeetCode interview questions while Qualcomm lists 62. They share 3 problems — 10% of Databricks's bank and 5% of Qualcomm's. Focus on the overlap first, then drill into 28 Databricks-only and 59 Qualcomm-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 3 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Databricks and Qualcomm.
Step 2 — Company-specific depth: Add Databricks-specific problems like Design Hit Counter, IP to CIDR, Design Tic-Tac-Toe and Qualcomm-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Databricks skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
3 Shared Questions
High-priority problems to practice for both Databricks and Qualcomm.
| Problem | Difficulty |
|---|---|
| String to Integer (atoi) | Medium |
| Merge Intervals | Medium |
| Two Sum | Easy |
Unique to Databricks (28)
Problems in Databricks's list that do not appear at Qualcomm.
| Problem | Difficulty |
|---|---|
| Design Hit Counter | Medium |
| IP to CIDR | Medium |
| Design Tic-Tac-Toe | Medium |
| House Robber | Medium |
| Find All Anagrams in a String | Medium |
| Step-By-Step Directions From a Binary Tree Node to Another | Medium |
| Time Based Key-Value Store | Medium |
| House Robber II | Medium |
| RLE Iterator | Medium |
| Longest Palindrome by Concatenating Two Letter Words | Medium |
| Closest Leaf in a Binary Tree | Medium |
| Shortest Path in a Grid with Obstacles Elimination | Hard |
Unique to Qualcomm (59)
Problems in Qualcomm's list that do not appear at Databricks.
| Problem | Difficulty |
|---|---|
| String Compression III | Medium |
| Maximum Number of Ones | Hard |
| Reverse Nodes in k-Group | Hard |
| Number of Islands | Medium |
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Reverse Linked List | Easy |
| Valid Parentheses | Easy |
| Palindrome Number | Easy |
| Remove Nth Node From End of List | Medium |
| Reverse Bits | Easy |
| 3Sum | Medium |
Frequently Asked Questions
How many LeetCode questions do Databricks and Qualcomm share?
Databricks and Qualcomm share 3 LeetCode interview questions. 28 problems appear only in Databricks's list and 59 appear only in Qualcomm's list.
What topics overlap most between Databricks and Qualcomm?
The most common shared topics between Databricks and Qualcomm are Array (2 shared questions), String (1 shared questions), Sorting (1 shared questions), Hash Table (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Databricks or Qualcomm?
Databricks has 2 Easy, 22 Medium, and 7 Hard questions. Qualcomm has 28 Easy, 25 Medium, and 9 Hard questions. Databricks has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Databricks and Qualcomm?
Start with the 3 shared problems since they cover what both companies ask most often. Then add 20 Databricks-specific and 20 Qualcomm-specific questions to round out your prep.