Dataford
Top 50
Topic roadmap
Updated weekly · Last refresh Sep 13

Top 50 Matrix Interview Questions

The most frequently asked Matrix questions across all roles and companies, ranked by real interview frequency. Updated daily.

50questions
~21htotal time
92companies covered
Track your progressSign up free to work through all 50 questions and resume where you left off.
Start practicing free →
1
MatrixStart here. 13 questions · ~325 min
Count Islands in a GridEasy
Practice
Recently asked

Use DFS on a matrix-as-graph to count connected components of land cells.

MatrixGraphsAApplovinYouTubeNiantic
Spiral Traversal in a MatrixMedium
Practice
Recently asked

Return every matrix value in clockwise spiral order using shrinking boundaries.

MatrixaadidasBroadridge Financial SolutionsZillow
More Matrix questions with a free account
2
Math8 questions · ~200 min
3D Bounding Box IoUEasy
Practice
Recently asked

Compute 3D IoU for two axis-aligned bounding boxes by finding overlap volume and dividing by union volume.

MathArraysMatrixCCodvo.aiLucid MotorsNFL
More Math questions with a free account
3
Arrays14 questions · ~350 min
Rotate Matrix 90 DegreesMedium
Practice
Recently asked

Rotate a square matrix 90 degrees clockwise in place using transpose and row reversal.

ArraysArray ManipulationMatrixAdani Digital LabsGoogleCloudFactory
Spiral Matrix PrintingMedium
Practice

Traverse a rectangular matrix in clockwise spiral order using shrinking boundaries.

ArraysArray ManipulationMatrixRupeekMATRIX ResourcesJoveo
Check Hankel Matrix PropertyMedium
Practice

Check whether every anti-diagonal in a matrix contains the same value.

ArraysArray ManipulationMatrixGoogle DeepMindDeepmind
More Arrays questions with a free account
4
binary search3 questions · ~75 min
More binary search questions with a free account
5
More topics12 questions · ~300 min
Rotate Square Matrix In PlaceEasy
Practice
Recently asked

Rotate an n x n matrix 90 degrees clockwise in place using transpose and row reversal.

Array ManipulationMatrixCapital OneRe:Build Manufacturing22nd Century Technologies
Neural Network From ScratchHard
Practice

Implement a one-hidden-layer neural network with forward propagation and batch gradient descent for binary classification.

Neural NetworksArraysMatrixBellClickUpOneMagnify
More questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
The finish line: interview-readyComplete all 50 questions to finish this plan.