advanced

Advanced Coding Interview Preparation with C#

Computer Programming

5 courses

87 practices

18 hours

This rigorous learning path extends your C# programming proficiency from intermediate to advanced level. It's dedicated to refining your knowledge and application of sophisticated algorithms, complex data structures, and efficient implementation strategies.

See courses

Verified skills you'll gain

ADVANCED

General Programming and Algorithms

INTERMEDIATE

Debugging and Troubleshooting

Tools you'll use

Trusted by learners working at top companies

Meet Cosmo:

The smartest AI guide in the universe

Our built-in AI guide and tutor, Cosmo, prompts you with challenges that are built just for you and unblocks you when you get stuck.

Earn a shareable

Certificate of Achievement

Course 2

Revision of C# Dictionaries and Their Use in Practice

4 lessons

20 practices

Enhance your comprehension and use of dictionary data structures while focusing on its application in counting and aggregation tasks. This exploration will deepen your understanding of their efficient data access and manipulation capabilities.

See details

Course 3

Mastering Task Decomposition in C#

4 lessons

12 practices

Learn how to break down complex tasks into manageable sub-tasks. This course will help you master the skills necessary to effectively structure, divide, and implement each part of advanced coding problems. You'll also focus on merging sub-task solutions into a cohesive whole.

See details

Course 4

Master Dictionaries, Two Pointers, and More Algorithms in C#

5 lessons

15 practices

Delve into the essentials of optimal programming algorithms involving Dictionaries, HashSets, and two-pointer techniques. Enhance your skills in data structure optimization and streamline problem-solving methods.

See details

Course 5

Maximized Efficiency in Problem Solving Techniques in C#

5 lessons

15 practices

This comprehensive course incorporates unique problem-solving approaches and analyzing techniques that extend beyond core programming. Topics include optimizing brute force methods, dealing with combinatorial problems, and utilizing heaps and sorted lists effectively.

See details

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11