Deloitte vs LinkedIn Interview Questions
Deloitte lists 43 LeetCode interview questions while LinkedIn lists 141. They share 11 problems — 26% of Deloitte's bank and 8% of LinkedIn's. Focus on the overlap first, then drill into 32 Deloitte-only and 130 LinkedIn-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 11 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Deloitte and LinkedIn.
Step 2 — Company-specific depth: Add Deloitte-specific problems like Change Null Values in a Table to the Previous Value, Second Highest Salary, Longest Common Prefix and LinkedIn-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
11 Shared Questions
High-priority problems to practice for both Deloitte and LinkedIn.
| Problem | Difficulty |
|---|---|
| Merge k Sorted Lists | Hard |
| Two Sum | Easy |
| Valid Parentheses | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Longest Palindromic Substring | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Merge Intervals | Medium |
| Maximum Subarray | Medium |
| Edit Distance | Medium |
| Kth Largest Element in an Array | Medium |
| Next Permutation | Medium |
Unique to Deloitte (32)
Problems in Deloitte's list that do not appear at LinkedIn.
| Problem | Difficulty |
|---|---|
| Change Null Values in a Table to the Previous Value | Medium |
| Second Highest Salary | Medium |
| Longest Common Prefix | Easy |
| Container With Most Water | Medium |
| Palindrome Number | Easy |
| Climbing Stairs | 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 |
| 3Sum | Medium |
Unique to LinkedIn (130)
Problems in LinkedIn's list that do not appear at Deloitte.
| 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 |
| Max Consecutive Ones III | Medium |
| Number of Islands | Medium |
| Maximum Product Subarray | Medium |
Frequently Asked Questions
How many LeetCode questions do Deloitte and LinkedIn share?
Deloitte and LinkedIn share 11 LeetCode interview questions. 32 problems appear only in Deloitte's list and 130 appear only in LinkedIn's list.
What topics overlap most between Deloitte and LinkedIn?
The most common shared topics between Deloitte and LinkedIn are Array (6 shared questions), String (4 shared questions), Dynamic Programming (4 shared questions), Divide and Conquer (3 shared questions), Heap (Priority Queue) (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Deloitte or LinkedIn?
Deloitte has 17 Easy, 23 Medium, and 3 Hard questions. LinkedIn has 25 Easy, 90 Medium, and 26 Hard questions. LinkedIn has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Deloitte and LinkedIn?
Start with the 11 shared problems since they cover what both companies ask most often. Then add 20 Deloitte-specific and 20 LinkedIn-specific questions to round out your prep.