Citadel vs Squarepoint Capital Interview Questions
Citadel lists 101 LeetCode interview questions while Squarepoint Capital lists 27. They share 12 problems — 12% of Citadel's bank and 44% of Squarepoint Capital's. Focus on the overlap first, then drill into 89 Citadel-only and 15 Squarepoint Capital-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 12 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Citadel and Squarepoint Capital.
Step 2 — Company-specific depth: Add Citadel-specific problems like Binary Tree Maximum Path Sum, Minimum Knight Moves, Delete and Earn and Squarepoint Capital-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
12 Shared Questions
High-priority problems to practice for both Citadel and Squarepoint Capital.
| Problem | Difficulty |
|---|---|
| Longest Non-decreasing Subarray From Two Arrays | Medium |
| Minimum Equal Sum of Two Arrays After Replacing Zeros | Medium |
| LRU Cache | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Number of Islands | Medium |
| Couples Holding Hands | Hard |
| Group Anagrams | Medium |
| Search Suggestions System | Medium |
| Trapping Rain Water | Hard |
| Count Ways To Build Good Strings | Medium |
| Longest Increasing Subsequence | Medium |
| Basic Calculator | Hard |
Unique to Citadel (89)
Problems in Citadel's list that do not appear at Squarepoint Capital.
Unique to Squarepoint Capital (15)
Problems in Squarepoint Capital's list that do not appear at Citadel.
| Problem | Difficulty |
|---|---|
| Maximum Xor Product | Medium |
| Subarray Product Less Than K | Medium |
| Number of Perfect Pairs | Medium |
| Maximum Subarray | Medium |
| Minimum Sideway Jumps | Medium |
| Frog Jump | Hard |
| Maximum Palindromes After Operations | Medium |
| Merge In Between Linked Lists | Medium |
| Minimum Number of Taps to Open to Water a Garden | Hard |
| Find Valid Matrix Given Row and Column Sums | Medium |
| Minimum Path Sum | Medium |
| Coin Change | Medium |
Frequently Asked Questions
How many LeetCode questions do Citadel and Squarepoint Capital share?
Citadel and Squarepoint Capital share 12 LeetCode interview questions. 89 problems appear only in Citadel's list and 15 appear only in Squarepoint Capital's list.
What topics overlap most between Citadel and Squarepoint Capital?
The most common shared topics between Citadel and Squarepoint Capital are Array (8 shared questions), Dynamic Programming (5 shared questions), String (3 shared questions), Greedy (2 shared questions), Hash Table (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Citadel or Squarepoint Capital?
Citadel has 5 Easy, 60 Medium, and 36 Hard questions. Squarepoint Capital has 2 Easy, 19 Medium, and 6 Hard questions. Citadel has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Citadel and Squarepoint Capital?
Start with the 12 shared problems since they cover what both companies ask most often. Then add 20 Citadel-specific and 15 Squarepoint Capital-specific questions to round out your prep.