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Data Science
Execute statistical techniques and experimentation effectively.
Machine Learning
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Data Engineering
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formerly Exponent
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Courses
Product Management
New
Ace product interviews from strategy cases to technical skills.
Forward Deployed
Beta
Prep for FDE loops at Anthropic, OpenAI, Palantir, and more.
Engineering Management
Review key leadership and people management skills.
Software Engineering
Learn essential strategies for coding problems and more.
System Design
Define architectures, interfaces, and databases in a time crunch.
Data Science
Execute statistical techniques and experimentation effectively.
Machine Learning
Review building, evaluating, and deploying AI/ML models.
Data Engineering
Design complex data models and ETL pipelines.
View all courses
Loops
Experiences
Questions
Product Management
Behavioral Questions
Coding Questions
System Design
SQL Questions
Machine Learning
Investment Banking
Data Engineering
Browse all questions
Practice
Coaching
Mock Interviews & Coaching
Practice with our team of senior tech coaches.
Resume Review
Get your resume reviewed by a senior tech recruiter.
Salary Negotiation
Increase your offer with our expert negotiators.
How Coaching Works
Learn how expert coaching can help you land the job.
Pricing
More
Job Referrals
Get job referrals to top tech companies.
Blog
Check out our blog on tech interviewing tips, strategies, and more.
Resources
Members-only articles, videos, and interviews.
Work with us
Help us grow the Aced community.
Perks
Access exclusive member benefits.
For universities
Give your students tech interview prep.
For businesses
Improve your placement rates, outcomes, and more.
For recruiters
Post a job on Aced's exclusive job board.
Affiliate program
Recommend us to others and earn commission.
Sign up
Log in
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Find a path from source to destination in a matrix that satisfies given constraints.
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Find the total number of unique paths in a maze from the source to the destination.
Given a matrix with a rat, bread, cat, and obstacles, find a path from the rat to the bread that maximizes the minimum distance from cat.
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