Data Structures for Coding Interviews: Arrays, Lists, and Maps — PickAClass
⏱ 2h 54m 📚 29 lessons 🎧 Audio version

Data Structures for Coding Interviews: Arrays, Lists, and Maps

Build a strong foundation in core data structures and time complexity to tackle technical interview questions with confidence.

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About this course

Preparing for technical interviews requires a clear grasp of foundational data structures and how to choose the right one for any problem. This written course helps you understand core computing concepts and algorithm efficiency so you can solve coding challenges effectively. You will learn how data is stored, accessed, and manipulated across essential structures, giving you the theoretical knowledge and practical reasoning skills needed for coding assessments. What you'll learn: - Understand foundational terminology, memory allocation, and Big O complexity analysis - Analyze arrays and linked lists to manage sequential data effectively - Implement stacks and queues for specialized data retrieval patterns - Use sets and associative arrays for fast lookup operations - Evaluate time and space trade-offs across different structural choices - Apply problem-solving strategies to common coding interview patterns The course begins with essential terminology, Big O notation, and memory layout fundamentals before exploring individual data structures step by step. You will then review practical trade-offs and common algorithmic patterns through written explanations and illustrative code snippets. This course is designed for beginner developers, computer science students, and job seekers preparing for software engineering interviews. No advanced algorithmic background is required. Start reading today to sharpen your technical interview skills.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
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  • 🎧 Audio version included
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  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 14-day refund
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  • Short & focused
    2h 54m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Data Structures for Coding Interviews: Arrays, Lists, and Maps
Skills demonstrated
Behavioral pattern analysis
Foundational
1.2 hrs
Decision-architecture frameworks
Proficient
1.4 hrs
A/B test design
Proficient
1.7 hrs
Behavioral copywriting
Advanced
1.9 hrs
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PickAClass — Name Surname
Data Structures for Coding Interviews: Arrays, Lists, and Maps
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
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pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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