Algorithm and Code Training School (ACTS)

Learn from world-class experts and master algorithms and competitive programming with top high school peers.

What is ACTS?

An advanced training camp organized by Constructor University and Neapolis University Pafos, and supported by the JetBrains Foundation, for students with a strong background in coding competitions and informatics olympiads, designed to prepare them for success on the international stage.

ACTS is held in two formats, online and onsite, two to four times a year.
Online camps are free of charge and open to participants aged 13 and above.
Onsite camps are designed for students aged 16 and older. Participants pay a €100 fee and cover their own travel expenses to the host country.

Algorithm and Code Training School 2025 in Serbia

What sets us apart

Improve your results in international contests and olympiads in informatics.

Learn from the best – world-class experts and masters in their fields.

Make friends with top-performing students and experience the beauty and culture of host countries firsthand.

Qualify for a fully funded scholarship by JetBrains Foundation at Constructor University Bremen.

Be a part of an intense program with IOI-style contests and ICPC-style group contests.

What we offer

Algorithm and Code Training School 2026.1 in Romania

Dates: January 24 – February 3, 2026.

Registration deadline: October 28, 2025.

On-site camp in Romania for students aged 16–19 with experience in coding competitions and olympiads, aiming to excel internationally.

Exciting contests. Daily task analysis with world-renowned experts.
Lectures and workshops led by experts in competitive programming.
Social events to network with top students worldwide.

The organizers will cover accommodation, meals, program. A camp fee is 100 euros.

Algorithm and Code Training School Online 2026

Dates: January 16-20, 2026.

Registration deadline: October 28, 2025.

A four-day free online intensive designed for school students aged 13-19 who want to improve their skills in competitive programming.

Four expert lectures
Four thematic contests
Q&A sessions

ACTS milestones

280+

Participants

Onsite and Online Camps

20+

Countries Represented

30+

Medals won at IOI competitions by ACTS alumni

ACTS over the years

ACTS 2024 Online

In 2024, ACTS brought together some of the world’s most talented young minds in computer science through both online and onsite camps. The online edition welcomed 101 students from 15 countries, offering a dynamic virtual environment where participants tackled advanced challenges and developed key problem-solving skills.

ACTS 2024 in Romania

The onsite camp, held in Romania, hosted 45 top high school students from 10 countries, all of whom were national Olympiad winners in Informatics. Among this exceptional group, 17 students competed at the International Olympiad in Informatics (IOI) 2024.

ACTS 2025 in Serbia

We kicked off 2025 with a 9-day winter camp in Serbia, bringing together 42 students from 15 countries. Over the course of the camp, participants experienced 40 hours of intensive coding lectures, 3 challenging IOI-style competitions, and 1 epic Second International ACTS Team Programming Contest.

ACTS 2025 in Kazakhstan

This was followed by a 13-day summer camp in Kazakhstan, organized with our local partner CPFED, where 36 students from five Central Asian countries, Kazakhstan, Uzbekistan, Kyrgyzstan, Azerbaijan, and Tajikistan, participated as members of their national IOI teams.

ACTS 2025 in Romania

The last camp of 2025 took place in Romania and brought together 60 outstanding high school students from 14 countries, all winners of their respective National Olympiads in Informatics.

Together, ACTS camps offered a high-level training environment for some of the world’s most promising young coders.

Alumni achievements

14 Medals at IOI 2024 in Egypt

2024 ACTS alumni earned 4 Gold, 5 Silver, and 5 Bronze medals, along with 3 Honourable Mentions, at the International Olympiad in Informatics 2024 in Egypt.

29 Medals at IOI 2025 in Bolivia

Our ACTS alumni brought home 6 Gold, 10 Silver, and 13 Bronze medals, plus 3 Honourable Mentions, from the International Olympiad in Informatics 2025 in Bolivia.

ACTS Highlights

"The ACTS was an amazing camp and one of the best events I've ever been in. The teachers were excellent and a variety of lectures, both from competitive programming topics and more general informatics ones, and contests. Besides the academic part, there were several fun activities organized in the great installations we were living in.
For future participants, I would definitely recommend this experience."

Alejandro Vivero, Spain | International Olympiad in Informatics (IOI) Gold medal

"If you want to get gold at IOI, meet a lot of cool people or just win a water gun and compete in rolling toilet paper as fast as possible, the ACTS camp is the right place for you. For me, it might've been even more fun than some of the international olympiads I've been to, because you have the same friendly-competitve environment, but it's less stressful, longer, and has even more activities occupying every part of the day. I've gained lots of new memories and knowledge, and I definitely recommend the camp to everyone else."

Eliška Macáková, Slovakia | International Olympiad in Informatics (IOI) Gold medal, International Mathematical Olympiad (IMO) Silver medal

“The ACTS Camp in Serbia was the best camp I have ever been to. I enjoyed algorithmic lectures and IOI contests. Also, I really liked having lectures not only about algorithms and competitive programming, but also about cryptocurrency, Kotlin, and Bioinformatics. It was very useful! Besides studying, I played basketball, board games, and participated in fun activities organized by the camp.”

Ivan Osipenko | Cyprus National Olympiad in Informatics 2nd place ACTS Serbia 2025

“The camp was both super enjoyable and educational. We had some great teachers who prepared very nice contests and classes and also a super fun organizing team that made sure we always had a great time. I especially loved the heuristic and team contests, because I feel they made the biggest difference between “just a programming camp” and “a diverse and interesting one”. I am really looking forward to the next one!”

Andrei Paul Iorgulescu | International Olympiad in Informatics (IOI) 2024 Silver Medal ACTS Serbia 2025

“I loved the atmosphere and the classes this year – seeing how informatics could be applied to areas such as biology and economics was very cool. The organizers went out of their way to make sure there was always something fun to do, from a bot-writing tournament to IOI contests and advanced (but super interesting) lectures on topics like link-cut trees, matroids, and optimizing exponential algorithms. Can't wait to see what you have planned for the summer!"

Rares Felix Tudose | International Olympiad in Informatics (IOI) Gold medal ACTS 2024, ACTS 2025.1

“ACTS camp really amazed me by being extremely fun and academically useful at once. I met some very cool people there, who, despite coming from very different backgrounds, have had really similar experiences in life and think very alike. With them, we got to participate in lectures and contests, and prepared together for our upcoming competitions—some of which we’ll even attend together.”

Zsófia Keresztély | European Girls’ Olympiad in Informatics (EGOI) Gold Medalist ACTS 2025.2

“The camp was a once-in-a-lifetime opportunity for me. I have never been to such a fun and memorable camp. Not only did I learn new things about competitive programming, but I also made long-lasting relationships with amazing people. There were a variety of lectures and optional fun activities, where I was able to get to know others better. In addition, the location was magnificent, surrounded by beautiful villages and superb nature. All in all, the whole experience was a perfect blend of entertainment, relaxation, and serious problem-solving.”

Mihail Mihalev | Romanian Master of Informatics (RMI) Silver Medalist ACTS 2025.2

Want to be part of the ACTS family?

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Meet our experts

Benefit from the in-person meeting with the ICPC World Champions and JetBrains experts.

Pavel Mavrin

ICPC World Champion 2004, IOI 2002 Silver Medalist, Instructor with JetBrains Academy.

Mikhail Pyaderkin

ICPC Gold Medalist 2014 & 2015, IOI Gold Medalist 2010, Staff Software Engineer.

Vladimir Sharich

Chief Learning Officer, Constructor Talent School

ACTS happens thanks to

Organized by Constructor University

Constructor University is a private English-speaking campus university in Bremen, Germany. It adheres to the highest standards in interdisciplinary research and teaching, aiming to strengthen people and markets with innovative solutions and advanced training programs.

ACTS is supported by JetBrains Foundation, part of the JetBrains group, among others dedicated to empowering communities and advancing tech education worldwide

Neapolis University Pafos (NUP) is one of the leading private universities in Cyprus. Established in 2010, NUP is a vibrant academic institution that strongly emphasizes high-quality higher education and cutting-edge applied knowledge. NUP is dedicated to offering excellent educational services to its academic community, as well as the broader national and international communities.

High Edu Consulting is a Romanian educational consultancy powered by certified experts, who are guiding students, professionals, and lifelong learners toward the schools, universities, and career paths that fit who they really are.

The Competitive Programming Federation main goal is to popularize and develop competitive programming (the “CP”) among the population, as well as to improve the results of coders in various contests.

Organizing committee