Data Structures and Algorithms in C# with Unit Testing — PickAClass
4.1 (13) ⏱ 2h 30m 📚 25 lessons 🎧 Audio version

Data Structures and Algorithms in C# with Unit Testing

Master essential computer science fundamentals, implement custom algorithms in modern C#, and write robust unit tests to prepare for technical interviews.

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About this course

Strong software development begins with a solid understanding of how data is organized and processed. If you want to write efficient code and confidently pass technical interviews, mastering core computer science principles in C# is your most critical step. This text-based course guides you from foundational programming concepts to advanced data structures and custom algorithms. You will learn not just how to use built-in .NET collections, but how they work under the hood, enabling you to make optimal design decisions and write clean, testable code using modern C# features and Test-Driven Development (TDD). What you'll learn: - Understand the fundamental concepts of Big O notation and algorithmic complexity. - Build custom data structures from scratch including linked lists, trees, and hash tables. - Implement essential sorting and searching algorithms with step-by-step code analysis. - Apply Test-Driven Development (TDD) principles to verify your algorithms using modern testing frameworks. - Analyze the inner workings of built-in .NET collections to make optimal performance choices. - Leverage modern C# features like pattern matching and generics to write clean, type-safe structures. Starting with fundamental definitions of memory management and complexity, you will progress through sequential and non-linear data structures, concluding with practical algorithmic problem-solving and unit testing paradigms. Each concept is explained through clear, structured text and detailed code snippets. This course is designed for beginner to intermediate C# developers who want to strengthen their computer science fundamentals and prepare for coding interviews. No prior experience with algorithms, data structures, or testing is required. Start reading today to build a deeper understanding of efficient programming in C#.

What you'll get

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  • 📱 Phone or computer
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  • Short & focused
    2h 30m 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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PickAClass
Skills profile · verifiable
Document
Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Data Structures and Algorithms in C# with Unit Testing
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
P
PickAClass — Name Surname
Data Structures and Algorithms in C# with Unit Testing
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
Verify this credential
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.

Reviews (13)

Agustín Rodríguez AR Verified learner
★ 4 · July 23, 2026

It's a solid course. The structure is logical and most of the examples were helpful. Could use a few more real-world scenarios though.

Ravi Kumar LK Verified learner
★ 4 · July 10, 2026

This was a brilliant way to learn! The structure was logical, the pace was spot on, and the examples were super helpful. Highly recommend!

Grace Hall NZ Verified learner
★ 4 · July 8, 2026

Pretty good introduction. The examples were helpful, but I wish there was a bit more practice material. Solid value for the cost.

عائشة بنت خالد المهندي QA Verified learner
★ 4 · July 2, 2026

This was a good introduction. The structure is logical, and it covers the basics effectively. Might be too introductory for advanced learners.

Francisca Pereira BR Verified learner
★ 3 · June 27, 2026

Hmm, not sure about this one. The pace was definitely a challenge, and some examples were hard to follow. Needed more practice.

خالد بن محمد SA Verified learner
★ 4 · June 19, 2026

Pretty good overall. Some parts were a bit slow, but the examples were solid and helped me grasp the concepts.

Sophia Martin AU
★ 4 · June 16, 2026

Overall a good learning experience. The structure made sense, and the examples were relevant, though I felt some topics could have been explored more thoroughly.

لطيفة القطان KW Verified learner
★ 4 · June 15, 2026

Really enjoyed this. The pace was perfect for me, and the examples really helped solidify the concepts. Got a lot out of it!

Girma Melese ET
★ 5 · June 10, 2026

So impressed with how this was put together. The examples were perfect, and the overall structure made complex ideas easy to grasp. Loved it!

Bahar Aktaş TR
★ 4 · June 10, 2026

Pretty good foundation. The examples were mostly helpful. Might need additional practice elsewhere for mastery.

Hannah Olivier ZA
★ 5 · June 7, 2026

This was brilliant. The examples were super helpful and really solidified the concepts. Left me feeling inspired and ready to apply what I learned.

أحمد بن علي المنصوري OM Verified learner
★ 4 · June 4, 2026

Couldn't have asked for a better learning experience. The structure flowed perfectly, and the examples were incredibly relevant. Highly recommend!

Grace Baah GH Verified learner
★ 4 · May 28, 2026

Learned a ton and the structure made it easy to follow along. Loved the practical application examples they provided.

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

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

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

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