Google vs Zeta Interview Questions
Google lists 2,305 LeetCode interview questions while Zeta lists 30. They share 29 problems — 1% of Google's bank and 97% of Zeta's. Focus on the overlap first, then drill into 2,276 Google-only and 1 Zeta-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 29 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Google and Zeta.
Step 2 — Company-specific depth: Add Google-specific problems like Two Sum, Add Two Numbers, Longest Common Prefix 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
29 Shared Questions
High-priority problems to practice for both Google and Zeta.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Median of Two Sorted Arrays | Hard |
| Longest Substring Without Repeating Characters | Medium |
| Merge Intervals | Medium |
| Maximum Subarray | Medium |
| Split Array Largest Sum | Hard |
| House Robber | Medium |
| Sliding Window Maximum | Hard |
| Maximal Rectangle | Hard |
| Insert Delete GetRandom O(1) | Medium |
| Reverse Nodes in k-Group | Hard |
| Remove K Digits | Medium |
| Word Break | Medium |
| Next Greater Element II | Medium |
| Capacity To Ship Packages Within D Days | Medium |
| Minimum Window Substring | Hard |
| Task Scheduler | Medium |
| Find All Possible Recipes from Given Supplies | Medium |
| Heaters | Medium |
| Palindrome Partitioning II | Hard |
| Guess Number Higher or Lower II | Medium |
| Distribute Coins in Binary Tree | Medium |
| Shifting Letters II | Medium |
| Minimize the Maximum Difference of Pairs | Medium |
| Partition to K Equal Sum Subsets | Medium |
| Remove Boxes | Hard |
| Power Grid Maintenance | Medium |
| Binary Tree Cameras | Hard |
| Count Univalue Subtrees | Medium |
Unique to Google (2,276)
Problems in Google's list that do not appear at Zeta.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Add Two Numbers | Medium |
| Longest Common Prefix | Easy |
| Palindrome Number | Easy |
| Merge Sorted Array | Easy |
| Best Time to Buy and Sell Stock | Easy |
| 3Sum | Medium |
| Create Hello World Function | Easy |
| Merge Strings Alternately | Easy |
| Longest Palindromic Substring | Medium |
| Longest Consecutive Sequence | Medium |
| Container With Most Water | Medium |
Unique to Zeta (1)
Problems in Zeta's list that do not appear at Google.
| Problem | Difficulty |
|---|---|
| Apply Operations to Make Two Strings Equal | Medium |
Frequently Asked Questions
How many LeetCode questions do Google and Zeta share?
Google and Zeta share 29 LeetCode interview questions. 2276 problems appear only in Google's list and 1 appear only in Zeta's list.
What topics overlap most between Google and Zeta?
The most common shared topics between Google and Zeta are Array (20 shared questions), Dynamic Programming (12 shared questions), Hash Table (7 shared questions), String (7 shared questions), Binary Search (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Google or Zeta?
Google has 601 Easy, 1205 Medium, and 499 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 Google and Zeta?
Start with the 29 shared problems since they cover what both companies ask most often. Then add 20 Google-specific and 1 Zeta-specific questions to round out your prep.