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Square LeetCode Questions 2026

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

Last updated: 20 Feb 2026

Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Available Captures for Rook	EASY	100%	ArrayMatrixSimulation
Squirrel Simulation	MEDIUM	100%	ArrayMath
Walking Robot Simulation II	MEDIUM	100%	DesignSimulation
Word Break	MEDIUM	100%	ArrayHash TableStringDynamic ProgrammingTrieMemoization
Falling Squares	HARD	100%	ArraySegment TreeOrdered Set
Number of Black Blocks	MEDIUM	100%	ArrayHash TableEnumeration
Count Nice Pairs in an Array	MEDIUM	100%	ArrayHash TableMathCounting
Rotating the Box	MEDIUM	100%	ArrayTwo PointersMatrix
The Maze	MEDIUM	62.5%	ArrayDepth-First SearchBreadth-First SearchMatrix
Pancake Sorting	MEDIUM	100%	ArrayTwo PointersGreedySorting
Longest Increasing Subsequence	MEDIUM	87.5%	ArrayBinary SearchDynamic Programming
Encode and Decode Strings	MEDIUM	62.5%	ArrayStringDesign

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