Deloitte vs Zeta Interview Questions
Deloitte lists 43 LeetCode interview questions while Zeta lists 30. They share 5 problems — 12% of Deloitte's bank and 17% of Zeta's. Focus on the overlap first, then drill into 38 Deloitte-only and 25 Zeta-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 5 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Deloitte and Zeta.
Step 2 — Company-specific depth: Add Deloitte-specific problems like Merge k Sorted Lists, Two Sum, Change Null Values in a Table to the Previous Value and Zeta-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Zeta skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
5 Shared Questions
High-priority problems to practice for both Deloitte and Zeta.
| Problem | Difficulty |
|---|---|
| Longest Substring Without Repeating Characters | Medium |
| Merge Intervals | Medium |
| Maximum Subarray | Medium |
| Remove K Digits | Medium |
| Split Array Largest Sum | Hard |
Unique to Deloitte (38)
Problems in Deloitte's list that do not appear at Zeta.
| Problem | Difficulty |
|---|---|
| Merge k Sorted Lists | Hard |
| Two Sum | Easy |
| Change Null Values in a Table to the Previous Value | Medium |
| Second Highest Salary | Medium |
| Valid Parentheses | Easy |
| Longest Palindromic Substring | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Longest Common Prefix | Easy |
| Container With Most Water | Medium |
| Palindrome Number | Easy |
| Climbing Stairs | Easy |
| Valid Palindrome | Easy |
Unique to Zeta (25)
Problems in Zeta's list that do not appear at Deloitte.
| Problem | Difficulty |
|---|---|
| Apply Operations to Make Two Strings Equal | Medium |
| Minimum Window Substring | Hard |
| Capacity To Ship Packages Within D Days | Medium |
| Trapping Rain Water | Hard |
| Palindrome Partitioning II | Hard |
| Task Scheduler | Medium |
| Remove Boxes | Hard |
| Next Greater Element II | Medium |
| Reverse Nodes in k-Group | Hard |
| Maximal Rectangle | Hard |
| Count Univalue Subtrees | Medium |
| Insert Delete GetRandom O(1) | Medium |
Frequently Asked Questions
How many LeetCode questions do Deloitte and Zeta share?
Deloitte and Zeta share 5 LeetCode interview questions. 38 problems appear only in Deloitte's list and 25 appear only in Zeta's list.
What topics overlap most between Deloitte and Zeta?
The most common shared topics between Deloitte and Zeta are Array (3 shared questions), String (2 shared questions), Dynamic Programming (2 shared questions), Greedy (2 shared questions), Hash Table (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Deloitte or Zeta?
Deloitte has 17 Easy, 23 Medium, and 3 Hard questions. Zeta has 0 Easy, 20 Medium, and 10 Hard questions. Zeta has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Deloitte and Zeta?
Start with the 5 shared problems since they cover what both companies ask most often. Then add 20 Deloitte-specific and 20 Zeta-specific questions to round out your prep.