Accenture vs Citadel Interview Questions
Accenture lists 143 LeetCode interview questions while Citadel lists 101. They share 22 problems — 15% of Accenture's bank and 22% of Citadel's. Focus on the overlap first, then drill into 121 Accenture-only and 79 Citadel-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 22 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Accenture and Citadel.
Step 2 — Company-specific depth: Add Accenture-specific problems like Two Sum, Maximum Subarray, Smallest Divisible Digit Product II and Citadel-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
22 Shared Questions
High-priority problems to practice for both Accenture and Citadel.
| Problem | Difficulty |
|---|---|
| Best Time to Buy and Sell Stock | Easy |
| Climbing Stairs | Easy |
| Delete and Earn | Medium |
| Koko Eating Bananas | Medium |
| Letter Combinations of a Phone Number | Medium |
| Perfect Squares | Medium |
| Median of Two Sorted Arrays | Hard |
| Number of Islands | Medium |
| 3Sum | Medium |
| Container With Most Water | Medium |
| Merge Intervals | Medium |
| House Robber | Medium |
| Integer to Roman | Medium |
| Longest Common Subsequence | Medium |
| Regular Expression Matching | Hard |
| Trapping Rain Water | Hard |
| Binary Tree Zigzag Level Order Traversal | Medium |
| Word Search | Medium |
| Pow(x, n) | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| Longest Increasing Subsequence | Medium |
| N-Queens | Hard |
Unique to Accenture (121)
Problems in Accenture's list that do not appear at Citadel.
Unique to Citadel (79)
Problems in Citadel's list that do not appear at Accenture.
Frequently Asked Questions
How many LeetCode questions do Accenture and Citadel share?
Accenture and Citadel share 22 LeetCode interview questions. 121 problems appear only in Accenture's list and 79 appear only in Citadel's list.
What topics overlap most between Accenture and Citadel?
The most common shared topics between Accenture and Citadel are Array (14 shared questions), Dynamic Programming (10 shared questions), String (5 shared questions), Math (4 shared questions), Hash Table (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Accenture or Citadel?
Accenture has 62 Easy, 69 Medium, and 12 Hard questions. Citadel has 5 Easy, 60 Medium, and 36 Hard questions. Citadel has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Accenture and Citadel?
Start with the 22 shared problems since they cover what both companies ask most often. Then add 20 Accenture-specific and 20 Citadel-specific questions to round out your prep.