Apple vs Google Interview Questions
Apple lists 300 LeetCode interview questions while Google lists 2,305. They share 280 problems — 93% of Apple's bank and 12% of Google's. Focus on the overlap first, then drill into 20 Apple-only and 2,025 Google-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 280 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Apple and Google.
Step 2 — Company-specific depth: Add Apple-specific problems like Number of Pairs of Strings With Concatenation Equal to Target, Calculate Score After Performing Instructions, Find the Grid of Region Average and Google-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Google skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
280 Shared Questions
High-priority problems to practice for both Apple and Google.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Two Sum | Easy |
| Number of Islands | Medium |
| Merge Intervals | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Design Hit Counter | Medium |
| Longest Common Prefix | Easy |
| Rotate Array | Medium |
| Reverse Linked List | Easy |
| Valid Sudoku | Medium |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Course Schedule II | Medium |
| Course Schedule | Medium |
| Valid Parentheses | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Product of Array Except Self | Medium |
| Valid Palindrome | Easy |
| Rotate Image | Medium |
| Reverse Words in a String | Medium |
| Kth Largest Element in an Array | Medium |
| Spiral Matrix | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| Maximum Subarray | Medium |
| Reverse Integer | Medium |
| Merge k Sorted Lists | Hard |
| Meeting Rooms II | Medium |
| Trapping Rain Water | Hard |
| Time Based Key-Value Store | Medium |
| Lowest Common Ancestor of a Binary Tree | Medium |
Showing top 30 of 280 shared problems.
Unique to Apple (20)
Problems in Apple's list that do not appear at Google.
Unique to Google (2,025)
Problems in Google's list that do not appear at Apple.
Frequently Asked Questions
How many LeetCode questions do Apple and Google share?
Apple and Google share 280 LeetCode interview questions. 20 problems appear only in Apple's list and 2025 appear only in Google's list.
What topics overlap most between Apple and Google?
The most common shared topics between Apple and Google are Array (18 shared questions), Hash Table (7 shared questions), String (7 shared questions), Sorting (5 shared questions), Two Pointers (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Apple or Google?
Apple has 76 Easy, 178 Medium, and 46 Hard questions. Google has 601 Easy, 1205 Medium, and 499 Hard questions. Google has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Apple and Google?
Start with the 280 shared problems since they cover what both companies ask most often. Then add 20 Apple-specific and 20 Google-specific questions to round out your prep.