Citadel vs Yelp Interview Questions
Citadel lists 101 LeetCode interview questions while Yelp lists 27. They share 7 problems — 7% of Citadel's bank and 26% of Yelp's. Focus on the overlap first, then drill into 94 Citadel-only and 20 Yelp-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 7 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Citadel and Yelp.
Step 2 — Company-specific depth: Add Citadel-specific problems like Longest Non-decreasing Subarray From Two Arrays, Binary Tree Maximum Path Sum, Minimum Knight Moves and Yelp-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Citadel skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
7 Shared Questions
High-priority problems to practice for both Citadel and Yelp.
| Problem | Difficulty |
|---|---|
| Merge Intervals | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Group Anagrams | Medium |
| Insert Delete GetRandom O(1) - Duplicates allowed | Hard |
| Word Ladder II | Hard |
| The Skyline Problem | Hard |
| Course Schedule | Medium |
Unique to Citadel (94)
Problems in Citadel's list that do not appear at Yelp.
Unique to Yelp (20)
Problems in Yelp's list that do not appear at Citadel.
Frequently Asked Questions
How many LeetCode questions do Citadel and Yelp share?
Citadel and Yelp share 7 LeetCode interview questions. 94 problems appear only in Citadel's list and 20 appear only in Yelp's list.
What topics overlap most between Citadel and Yelp?
The most common shared topics between Citadel and Yelp are Array (5 shared questions), Hash Table (4 shared questions), Sorting (2 shared questions), Math (2 shared questions), Design (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Citadel or Yelp?
Citadel has 5 Easy, 60 Medium, and 36 Hard questions. Yelp has 7 Easy, 15 Medium, and 5 Hard questions. Citadel has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Citadel and Yelp?
Start with the 7 shared problems since they cover what both companies ask most often. Then add 20 Citadel-specific and 20 Yelp-specific questions to round out your prep.