Citadel vs Josh Technology Interview Questions
Citadel lists 101 LeetCode interview questions while Josh Technology lists 35. They share 3 problems — 3% of Citadel's bank and 9% of Josh Technology's. Focus on the overlap first, then drill into 98 Citadel-only and 32 Josh Technology-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 3 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Citadel and Josh Technology.
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 Josh Technology-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
3 Shared Questions
High-priority problems to practice for both Citadel and Josh Technology.
| Problem | Difficulty |
|---|---|
| Group Anagrams | Medium |
| Climbing Stairs | Easy |
| Koko Eating Bananas | Medium |
Unique to Citadel (98)
Problems in Citadel's list that do not appear at Josh Technology.
Unique to Josh Technology (32)
Problems in Josh Technology's list that do not appear at Citadel.
| Problem | Difficulty |
|---|---|
| Largest Number | Medium |
| Move Zeroes | Easy |
| Reverse Nodes in Even Length Groups | Medium |
| Maximum Twin Sum of a Linked List | Medium |
| Spiral Matrix | Medium |
| Count Good Nodes in Binary Tree | Medium |
| Reverse Odd Levels of Binary Tree | Medium |
| Delete Leaves With a Given Value | Medium |
| Find Bottom Left Tree Value | Medium |
| Merge Nodes in Between Zeros | Medium |
| Minimum Swaps to Group All 1's Together II | Medium |
| Count Pairs Whose Sum is Less than Target | Easy |
Frequently Asked Questions
How many LeetCode questions do Citadel and Josh Technology share?
Citadel and Josh Technology share 3 LeetCode interview questions. 98 problems appear only in Citadel's list and 32 appear only in Josh Technology's list.
What topics overlap most between Citadel and Josh Technology?
The most common shared topics between Citadel and Josh Technology are Array (2 shared questions), Hash Table (1 shared questions), String (1 shared questions), Sorting (1 shared questions), Math (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Citadel or Josh Technology?
Citadel has 5 Easy, 60 Medium, and 36 Hard questions. Josh Technology has 8 Easy, 24 Medium, and 3 Hard questions. Citadel has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Citadel and Josh Technology?
Start with the 3 shared problems since they cover what both companies ask most often. Then add 20 Citadel-specific and 20 Josh Technology-specific questions to round out your prep.