Deloitte vs Qualcomm Interview Questions
Deloitte lists 43 LeetCode interview questions while Qualcomm lists 62. They share 14 problems — 33% of Deloitte's bank and 23% of Qualcomm's. Focus on the overlap first, then drill into 29 Deloitte-only and 48 Qualcomm-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 14 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Deloitte and Qualcomm.
Step 2 — Company-specific depth: Add Deloitte-specific problems like Change Null Values in a Table to the Previous Value, Second Highest Salary, Longest Palindromic Substring and Qualcomm-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Qualcomm skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
14 Shared Questions
High-priority problems to practice for both Deloitte and Qualcomm.
| Problem | Difficulty |
|---|---|
| Merge k Sorted Lists | Hard |
| Two Sum | Easy |
| Valid Parentheses | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Longest Common Prefix | Easy |
| Container With Most Water | Medium |
| Palindrome Number | Easy |
| Climbing Stairs | Easy |
| Merge Intervals | Medium |
| 3Sum | Medium |
| Remove Duplicates from Sorted Array | Easy |
| Edit Distance | Medium |
| Kth Largest Element in an Array | Medium |
| Subarray Sum Equals K | Medium |
Unique to Deloitte (29)
Problems in Deloitte's list that do not appear at Qualcomm.
| Problem | Difficulty |
|---|---|
| Change Null Values in a Table to the Previous Value | Medium |
| Second Highest Salary | Medium |
| Longest Palindromic Substring | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Valid Palindrome | Easy |
| Add Binary | Easy |
| Managers with at Least 5 Direct Reports | Medium |
| Minimum Time to Repair Cars | Medium |
| First Unique Character in a String | Easy |
| Maximum Subarray | Medium |
| Nth Highest Salary | Medium |
| Group Anagrams | Medium |
Unique to Qualcomm (48)
Problems in Qualcomm's list that do not appear at Deloitte.
| Problem | Difficulty |
|---|---|
| String Compression III | Medium |
| Maximum Number of Ones | Hard |
| Reverse Nodes in k-Group | Hard |
| Number of Islands | Medium |
| LRU Cache | Medium |
| Reverse Linked List | Easy |
| Remove Nth Node From End of List | Medium |
| Reverse Bits | Easy |
| Rotate Image | Medium |
| Power of Two | Easy |
| Rectangle Overlap | Easy |
| Linked List Cycle | Easy |
Frequently Asked Questions
How many LeetCode questions do Deloitte and Qualcomm share?
Deloitte and Qualcomm share 14 LeetCode interview questions. 29 problems appear only in Deloitte's list and 48 appear only in Qualcomm's list.
What topics overlap most between Deloitte and Qualcomm?
The most common shared topics between Deloitte and Qualcomm are Array (8 shared questions), String (4 shared questions), Hash Table (3 shared questions), Two Pointers (3 shared questions), Sorting (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Deloitte or Qualcomm?
Deloitte has 17 Easy, 23 Medium, and 3 Hard questions. Qualcomm has 28 Easy, 25 Medium, and 9 Hard questions. Qualcomm has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Deloitte and Qualcomm?
Start with the 14 shared problems since they cover what both companies ask most often. Then add 20 Deloitte-specific and 20 Qualcomm-specific questions to round out your prep.