The course helped me fully return to programming after the service. The program is very well structured and has many practical cases. The homework is intense and time-consuming, but it is thanks to them that the material is really learned. The teacher Ivan Petrushenko really knows how to motivate to study, and is ready to help and explain everything that is not clear. The lecture format is interactive: a lot of communication and the opportunity to hear the opinions of classmates.

I was working on a situational awareness system in the Armed Forces of Ukraine. I chose a course on algorithms because it was the foundation I was lacking — I don’t have a technical university education, so I wanted to systematize the base. The course turned out to be really difficult if you do everything to the maximum: over a hundred solved problems, competitions with like-minded people, a constant intellectual challenge.

The atmosphere in the group was very strong — we supported each other, and communication did not end with the course.

Learning is not easy, like everything that has value. The course allowed me to deepen my knowledge in programming and find meaning in some technical topics that did not make much sense before. Due to a well-thought-out and fundamental learning plan — from mathematics to algorithms.
I also wanted to thank the entire CS Osvita team for organizing the learning process and improving the product.

The key feature of this course is the simple and understandable explanation of complex topics with a deep dive into the fundamentals. A course on how to become a better engineer. It helped me close the gaps in my knowledge and systematize the basic concepts. In addition, it is a great opportunity to meet like-minded people. The learning format is lively, dynamic and very practical. This course is significantly different from typical ones — deeper, clearer, more practical.

If you are still thinking, don't think. You have to take this course!
An incredible combination of theory and practice: classes are held live with attention to each student, and homework assignments are skillfully selected and help to deeply consolidate knowledge. I recommend it.

Very well structured and in-depth course that helps you understand how algorithms and data structures work «under the hood». Lots of practical exercises with real-world examples. Definitely recommend!

I was very satisfied. Due to the change of project and work, time was short, and my knowledge of algorithms, to be honest, was heading towards zero, despite 7 years of experience in development. Therefore, the training required a lot of effort and time, but I never regretted signing up. The course helped me feel confident in interviews — and thanks to this, I successfully passed the interview at IBM. I highly recommend it!

Best algorithms course. No debate.

Very methodical and structured approach that allowed to understand algorithms in general and why one or another is used in a specific case. It was interactive and very interesting, not boring like in regular lectures at the university. I also liked the element of the contest — it motivated to work harder to get a better result.

The algorithmic course exceeded my expectations! The teacher is excellent at motivating and presents the material in an engaging way, which makes learning much easier. Thanks to the course, I finally got the base I was missing. I recommend CS Osvita to both beginners and professionals.

Structured, original and fun presentation of complex topics. Very high-quality materials that complement the main lectures. Thoughtful homework assignments. My recommendation to everyone.

I really enjoyed it. I definitely learned a lot of new things and remembered cool things that were forgotten in the whirlwind of working on everyday tasks. The difficulty was high enough to get a kick out of each solved task. We covered all the topics that interested me and even more!

Great course! I really enjoyed solving difficult homework assignments and working on tasks similar to production — it perfectly complements the theory and allows you to better understand the material covered.

What immediately catches your eye is Ivan's incredibly cool structured presentation of the material. Before the course, I thought that it was almost impossible to understand algorithms, but during the lectures everything seemed to become clear on the fly. I believe that every developer will be able to fill some gap in their knowledge thanks to this course. Special respect for the homework and lecture notes. I had an incredible high from this cool course.

Great course, I recommend it. Gave a clear understanding of key topics and a lot of practical skills.

After months of preparation and a couple of unsuccessful interviews, I decided to thoroughly study the basics. I got into school — it was exactly what I was missing. The result was not long in coming — I am in the company of my dreams. I advise you to undergo training to develop a habit of mastering new topics and solving increasingly complex tasks, which will help a lot in your work.

It was here that I found the missing piece of the puzzle that filled the gap in my knowledge. It allowed me to gain a deeper understanding of the technologies I work with. For me, completing the courses was a real challenge, but the effort was worth it.

This course is incredibly powerful. It works for both beginners and experienced engineers — thanks to the progressive difficulty of problems and algorithms, plus optional deep dives for extra practice. You'll develop a solid approach to tackling problems of any complexity. 100% recommend.