Citadel vs J P Morgan Interview Questions
Citadel lists 101 LeetCode interview questions while J P Morgan lists 79. They share 15 problems — 15% of Citadel's bank and 19% of J P Morgan's. Focus on the overlap first, then drill into 86 Citadel-only and 64 J P Morgan-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 15 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Citadel and J P Morgan.
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 J P Morgan-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
15 Shared Questions
High-priority problems to practice for both Citadel and J P Morgan.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Merge Intervals | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Find the Duplicate Number | Medium |
| Group Anagrams | Medium |
| Permutations | Medium |
| Search Suggestions System | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| Fizz Buzz | Easy |
| Combination Sum | Medium |
| Climbing Stairs | Easy |
| Letter Combinations of a Phone Number | Medium |
| Container With Most Water | Medium |
| Open the Lock | Medium |
| Integer to Roman | Medium |
Unique to Citadel (86)
Problems in Citadel's list that do not appear at J P Morgan.
Unique to J P Morgan (64)
Problems in J P Morgan's list that do not appear at Citadel.
Frequently Asked Questions
How many LeetCode questions do Citadel and J P Morgan share?
Citadel and J P Morgan share 15 LeetCode interview questions. 86 problems appear only in Citadel's list and 64 appear only in J P Morgan's list.
What topics overlap most between Citadel and J P Morgan?
The most common shared topics between Citadel and J P Morgan are Array (10 shared questions), String (6 shared questions), Hash Table (5 shared questions), Sorting (3 shared questions), Dynamic Programming (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Citadel or J P Morgan?
Citadel has 5 Easy, 60 Medium, and 36 Hard questions. J P Morgan has 27 Easy, 47 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 J P Morgan?
Start with the 15 shared problems since they cover what both companies ask most often. Then add 20 Citadel-specific and 20 J P Morgan-specific questions to round out your prep.