Citadel LeetCode Interview Questions
Practice 40 real coding problems frequently asked in Citadel technical interviews. Master these questions to ace your next Citadel software engineering interview.
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Citadel Interview Problems
| Problem | DifficultyDiff | Action |
|---|---|---|
Two Sum II - Input Array Is Sorted 100% | MediumM | Solve→ |
Valid Palindrome 97% | EasyE | Solve→ |
Add Two Integers 97% | EasyE | Solve→ |
Identify the Largest Outlier in an Array 96% | MediumM | Solve→ |
Roman to Integer 95% | EasyE | Solve→ |
Rotate Image 78% | MediumM | Solve→ |
Maximize Amount After Two Days of Conversions 74% | MediumM | Solve→ |
All O`one Data Structure 72% | HardH | Solve→ |
Check If a Word Occurs As a Prefix of Any Word in a Sentence 68% | EasyE | Solve→ |
Zero Array Transformation II 68% | MediumM | Solve→ |
Permutations 66% | MediumM | Solve→ |
Maximum Number of Occurrences of a Substring 66% | MediumM | Solve→ |
Capacity To Ship Packages Within D Days 66% | MediumM | Solve→ |
Shortest Palindrome 61% | HardH | Solve→ |
Remove Stones to Minimize the Total 58% | MediumM | Solve→ |
Permutation in String 57% | MediumM | Solve→ |
Maximum Product Subarray 56% | MediumM | Solve→ |
Minimum Limit of Balls in a Bag 54% | MediumM | Solve→ |
Find Score of an Array After Marking All Elements 54% | MediumM | Solve→ |
Longest Arithmetic Subsequence of Given Difference 52% | MediumM | Solve→ |
Evaluate Division 51% | MediumM | Solve→ |
Ways to Make a Fair Array 48% | MediumM | Solve→ |
Longest Increasing Path in a Matrix 46% | HardH | Solve→ |
Longest Repeating Character Replacement 42% | MediumM | Solve→ |
Search Insert Position 42% | EasyE | Solve→ |
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Flood Fill 39% | EasyE | Solve→ |
Take Gifts From the Richest Pile 38% | EasyE | Solve→ |
Frequency of the Most Frequent Element 38% | MediumM | Solve→ |
Simplify Path 37% | MediumM | Solve→ |
Find Longest Self-Contained Substring 35% | HardH | Solve→ |
Word Ladder II 35% | HardH | Solve→ |
Merge Intervals 34% | MediumM | Solve→ |
Nested List Weight Sum II 31% | MediumM | Solve→ |
Largest Rectangle in Histogram 31% | HardH | Solve→ |
Random Pick with Weight 28% | MediumM | Solve→ |
Find First and Last Position of Element in Sorted Array 28% | MediumM | Solve→ |
Single Number 25% | EasyE | Solve→ |
Combination Sum 25% | MediumM | Solve→ |
Find the Index of the First Occurrence in a String 22% | EasyE | Solve→ |
Find Peak Element 22% | MediumM | Solve→ |
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Frequently Asked Questions
What LeetCode problems does Citadel ask in interviews?
Citadel commonly asks 40 coding problems in technical interviews, including Two Sum II - Input Array Is Sorted, Valid Palindrome, Add Two Integers. The difficulty breakdown is 9 Easy, 25 Medium, and 6 Hard problems.
How should I prepare for a Citadel coding interview?
Focus on the most frequently asked problems first, especially those with high frequency scores. Citadel interviews typically emphasize Array and String. Practice explaining your thought process while coding.
What is the difficulty level of Citadel coding interviews?
Based on our data, Citadel interviews include 9 Easy (23%), 25 Medium (63%), and 6 Hard (15%) problems.
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