
This article will explore the Apple Leetcode Questions, how to prepare effectively, and where to find resources.
Table of Contents
1. Overview of Apple Company
Apple Inc. is an American multinational technology company headquartered in Cupertino, California. Founded by Steve Jobs, Steve Wozniak, and Ronald Wayne on April 1, 1976, the company initially focused on personal computers. Apple gained widespread acclaim with the release of the Macintosh in 1984, which featured a graphical user interface and innovative design.
Over the years, Apple expanded its product line to include iconic devices such as the iPod, iPhone, iPad, and Apple Watch. The iPhone, introduced in 2007, revolutionized the smartphone industry with its sleek design and advanced features. Apple also offers a range of software and services, including the macOS operating system, iCloud, Apple Music, and the App Store.
The company is known for its emphasis on design, user experience, and high-quality products. Tim Cook succeeded Steve Jobs as CEO in 2011 and has continued to lead Apple to new heights. Today, Apple is one of the world’s most valuable companies, with a loyal customer base and a significant impact on technology, entertainment, and various other industries.
2. Why Apple Leetcode Questions are Important?
Apple’s technical interviews are designed to test your problem-solving skills, coding proficiency, and ability to think critically under pressure. The questions you’ll encounter are often similar to those found on Leetcode, a popular platform for practicing coding problems.
Here’s why Apple Leetcode questions are crucial:
- Relevance: Many of Apple’s interview questions are inspired by or directly taken from Leetcode.
- Variety: Leetcode offers a wide range of problems, from easy to hard, covering topics like algorithms, data structures, and system design—all of which are essential for Apple interviews.
- Efficiency: Practicing on Leetcode helps you develop the speed and accuracy needed to solve problems within the time constraints of an interview.
3. Topics to Focus on for Apple Leetcode Questions
Apple’s interview process is rigorous; the questions often test your understanding of fundamental computer science concepts. Here are the key topics you should focus on:
3.1 Data Structures
- Arrays and Strings
- Linked Lists
- Stacks and Queues
- Trees and Graphs
- Hash Maps and Hash Sets
3.2 Algorithms
- Sorting and Searching
- Dynamic Programming
- Backtracking
- Greedy Algorithms
- Divide and Conquer
3.3 System Design
While Leetcode primarily focuses on coding problems, Apple’s interviews may also include system design questions, especially for senior roles. Make sure to brush up on designing scalable and efficient systems.
3.4 Apple-Specific Patterns
Some candidates have reported recurring patterns in Apple Leetcode questions. For example:
- Sliding Window problems
- Binary Search on sorted data
- Depth-First Search (DFS) and Breadth-First Search (BFS) for tree and graph traversal
4. How to Prepare for Apple Leetcode Questions
- Start with Easy and Medium Problems
- Practice Mock Interviews
- Explore GitHub Repositories
- Focus on Problem-Solving Techniques
List of all Leetcode Problem
1. Easy Problems
2. Medium Problems
3. Hard Problems

Apple Leetcode Questions
S.No. | Name | Level of Question | Solution |
1 | Binary Tree Level Order Traversal | Medium | Link |
2 | Peeking Iterator | Medium | Link |
3 | Course Schedule | Medium | Link |
4 | Compare Version Numbers | Medium | Link |
5 | Reverse Words in a String | Medium | Link |
6 | Reverse Integer | Medium | Link |
7 | Search a 2D Matrix II | Medium | Link |
8 | Product of Array Except Self | Medium | Link |
9 | Lowest Common Ancestor of a Binary Tree | Medium | Link |
10 | Kth Largest Element in an Array | Medium | Link |
11 | Max Points on a Line | Hard | Link |
12 | Sqrt(x) | Easy | Link |
13 | Valid Sudoku | Medium | Link |
14 | Rotate Image | Medium | Link |
15 | Trapping Rain Water | Hard | Link |
16 | Merge Two Sorted Lists | Easy | Link |
17 | Climbing Stairs | Easy | Link |
18 | Reverse Linked List | Easy | Link |
19 | Delete Node in a Linked List | Medium | Link |
20 | Reverse Bits | Easy | Link |
21 | Maximal Square | Medium | Link |
22 | Median of Two Sorted Arrays | Hard | Link |
23 | Two Sum | Easy | Link |
Cracking the Apple SDE interview is no easy task, but with the right preparation and resources, it’s entirely achievable. Focus on solving Apple Leetcode questions, study the key topics, and practice consistently. Remember, persistence is key—every problem you solve brings you one step closer to your dream job at Apple.
So, what are you waiting for? Start your preparation today, and who knows—you might just be the next SDE to join Apple
FAQs
1. Are Apple Leetcode questions hard?
The difficulty of Apple Leetcode questions varies. While some are straightforward, others can be quite challenging, especially those involving advanced algorithms or system design.
2. How long should I prepare for Apple’s technical interview?
Preparation time varies depending on your current skill level. On average, candidates spend 2-3 months practicing Leetcode problems and studying system design.
3. What is the best way to practice for Apple in 2025?
Cracking the Apple SDE interview is no easy task, but with the right preparation and resources, it’s entirely achievable. Focus on solving Leetcode Apple Questions, study the key topics, and practice consistently.