Apple vs Yelp Interview Questions
Apple lists 300 LeetCode interview questions while Yelp lists 27. They share 17 problems — 6% of Apple's bank and 63% of Yelp's. Focus on the overlap first, then drill into 283 Apple-only and 10 Yelp-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 17 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Apple and Yelp.
Step 2 — Company-specific depth: Add Apple-specific problems like LRU Cache, Number of Islands, Best Time to Buy and Sell Stock and Yelp-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Yelp skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
17 Shared Questions
High-priority problems to practice for both Apple and Yelp.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Merge Intervals | Medium |
| Longest Common Prefix | Easy |
| Reverse Linked List | Easy |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Course Schedule | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Reverse Words in a String | Medium |
| Word Ladder | Hard |
| Insert Delete GetRandom O(1) | Medium |
| String Compression | Medium |
| Decode String | Medium |
| Valid Anagram | Easy |
| The Skyline Problem | Hard |
| Word Ladder II | Hard |
| Top K Frequent Words | Medium |
Unique to Apple (283)
Problems in Apple's list that do not appear at Yelp.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Design Hit Counter | Medium |
| Rotate Array | Medium |
| Valid Sudoku | Medium |
| Course Schedule II | Medium |
| Valid Parentheses | Easy |
| Product of Array Except Self | Medium |
| Valid Palindrome | Easy |
| Rotate Image | Medium |
| Kth Largest Element in an Array | Medium |
Unique to Yelp (10)
Problems in Yelp's list that do not appear at Apple.
Frequently Asked Questions
How many LeetCode questions do Apple and Yelp share?
Apple and Yelp share 17 LeetCode interview questions. 283 problems appear only in Apple's list and 10 appear only in Yelp's list.
What topics overlap most between Apple and Yelp?
The most common shared topics between Apple and Yelp are String (10 shared questions), Hash Table (9 shared questions), Array (8 shared questions), Sorting (6 shared questions), Heap (Priority Queue) (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Apple or Yelp?
Apple has 76 Easy, 178 Medium, and 46 Hard questions. Yelp has 7 Easy, 15 Medium, and 5 Hard questions. Yelp has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Apple and Yelp?
Start with the 17 shared problems since they cover what both companies ask most often. Then add 20 Apple-specific and 10 Yelp-specific questions to round out your prep.