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Apple Interview Questions (303)

Practice real interview problems from Apple

#1

Two Sum

Easy✓ Solution📹 Video
Accenture+126
#13

Roman to Integer

Easy✓ Solution📹 Video
Accenture+35
#14

Longest Common Prefix

Easy✓ Solution📹 Video
Accenture+59
#20

Valid Parentheses

Easy✓ Solution📹 Video
Accenture+112
#21

Merge Two Sorted Lists

Easy✓ Solution📹 Video
Accenture+35
#27

Remove Element

Easy✓ Solution📹 Video
Adobe+9
#69

Sqrt(x)

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Amazon+16
#70

Climbing Stairs

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Accenture+36
#88

Merge Sorted Array

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Accenture+36
#118

Pascal's Triangle

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Accenture+16
#202

Happy Number

Easy✓ Solution📹 Video
Accenture+26
#206

Reverse Linked List

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Accenture+33
#217

Contains Duplicate

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Accenture+19
#219

Contains Duplicate II

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Accenture+14
#225

Implement Stack using Queues

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Amazon+8
#232

Implement Queue using Stacks

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Amazon+11
#242

Valid Anagram

Easy✓ Solution📹 Video
Accenture+39
#243Premium

Shortest Word Distance

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Amazon+7
#252Premium

Meeting Rooms

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Amazon+9
#268

Missing Number

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Adobe+18
#278

First Bad Version

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Amazon+6
#283

Move Zeroes

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Accenture+45
#344

Reverse String

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Accenture+15
#345

Reverse Vowels of a String

Easy✓ Solution📹 Video
Amazon+12
#383

Ransom Note

Easy✓ Solution📹 Video
Amazon+13
#412

Fizz Buzz

Easy✓ Solution📹 Video
Agoda+17
#455

Assign Cookies

Easyâś“ Solution
Accenture+8
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About Apple Coding Interviews

Preparing for an Apple coding interview requires more than just solving random algorithm problems. Apple engineers are known for building highly optimized, user‑focused products, and their interview process reflects this mindset. Interviewers often look for candidates who can write clean, efficient code while clearly explaining their reasoning and trade‑offs.

The typical Apple technical interview evaluates strong fundamentals in data structures and algorithms (DSA). Across hundreds of real interview experiences, common topics include arrays, strings, hash maps, tree traversal, recursion, and two‑pointer techniques. Apple also frequently asks practical coding problems that resemble real engineering scenarios such as parsing data, implementing custom data structures, or optimizing memory usage.

Most candidates go through a structured process that includes a technical phone screen followed by several onsite or virtual onsite rounds. These rounds usually include multiple coding interviews, behavioral discussions, and sometimes system design for experienced roles. Interviewers emphasize clarity, problem‑solving approach, and the ability to collaborate while thinking through a solution.

The 356 Apple interview questions on FleetCode are collected from real candidate reports and categorized by difficulty so you can prepare strategically.

  • Easy questions to master fundamentals
  • Medium problems that reflect most real interview questions
  • Hard problems for advanced optimization and edge cases

Each problem includes explanations and solutions in popular languages like Python, Java, and C++. By practicing these curated problems, you can build the exact pattern recognition and coding fluency needed to succeed in an Apple software engineering interview.

Interview Tips for Apple

Apple interviews focus heavily on practical problem solving and clean coding. While the structure can vary slightly by team, most candidates experience a fairly consistent process.

Typical Apple interview format:

  • Recruiter screen: A short call discussing your background, projects, and role fit.
  • Technical phone screen (1–2 rounds): Usually a 45–60 minute coding interview using a shared editor. Expect one or two DSA problems.
  • Onsite or virtual onsite (4–6 rounds): Multiple coding rounds, team matching discussions, behavioral interviews, and sometimes system design for mid‑level and senior candidates.

Common data structure and algorithm topics at Apple:

  • Arrays and strings (very common)
  • Hash tables and frequency counting
  • Two pointers and sliding window
  • Binary trees and tree traversal
  • Recursion and backtracking
  • Graph traversal (BFS/DFS)
  • Dynamic programming for optimization problems

Compared with some companies, Apple interviewers often prefer clear, readable solutions over extremely clever tricks. They want to see how you reason through a problem and whether you can communicate your thinking effectively.

Preparation strategy:

  • Start with array and string patterns since many Apple problems are built on them.
  • Practice writing code without relying on heavy library shortcuts.
  • Focus on explaining your approach before coding.
  • After solving a problem, discuss time and space complexity and possible optimizations.

Common mistakes to avoid:

  • Jumping into coding without clarifying the problem
  • Ignoring edge cases like empty inputs or duplicates
  • Writing messy or hard‑to‑read code
  • Not communicating your thought process during the interview

Most candidates preparing for Apple spend around 6–10 weeks practicing DSA problems. Working through a curated set like the 356 Apple questions on FleetCode helps you focus on patterns that repeatedly appear in real interviews rather than studying random problems.