QUESTIONS BY COMPANY

Capital One LeetCode Questions 2026

Browse LeetCode problems frequently asked by Capital One. Filter by difficulty and timeframe to focus your interview prep.

Last updated: 20 May 2026

Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Add Two Numbers	MEDIUM	50%	Linked ListMathRecursion
Remove Boxes	HARD	37.5%	ArrayDynamic ProgrammingMemoization
Rotate Image	MEDIUM	75%	ArrayMathMatrix
Text Justification	HARD	100%	ArrayStringSimulation
Simplify Path	MEDIUM	75%	StringStack
Candy Crush	MEDIUM	87.5%	ArrayTwo PointersMatrixSimulation
Find the Length of the Longest Common Prefix	MEDIUM	87.5%	ArrayHash TableStringTrie
Four Divisors	MEDIUM	62.5%	ArrayMath
Number of Flowers in Full Bloom	HARD	37.5%	ArrayHash TableBinary SearchSortingPrefix SumOrdered Set
Count Alternating Subarrays	MEDIUM	62.5%	ArrayMath
Simple Bank System	MEDIUM	100%	ArrayHash TableDesignSimulation
Best Time to Buy and Sell Stock	EASY	50%	ArrayDynamic Programming
Non-overlapping Intervals	MEDIUM	37.5%	ArrayDynamic ProgrammingGreedySorting
Block Placement Queries	HARD	87.5%	ArrayBinary SearchBinary Indexed TreeSegment Tree
Spiral Matrix	MEDIUM	87.5%	ArrayMatrixSimulation
Minimum Operations to Write the Letter Y on a Grid	MEDIUM	87.5%	ArrayHash TableMatrixCounting
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	MEDIUM	62.5%	ArrayQueueSliding WindowHeap (Priority Queue)Ordered SetMonotonic Queue
Binary Tree Paths	EASY	62.5%	StringBacktrackingTreeDepth-First SearchBinary Tree
Meeting Rooms II	MEDIUM	37.5%	ArrayTwo PointersGreedySortingHeap (Priority Queue)Prefix Sum
Design File System	MEDIUM	50%	Hash TableStringDesignTrie

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