KTH Challenge 2025

KTH Challenge is a programming competition designed for university and high school students. Anyone is welcome to compete though.

You compete individually trying to solve as many problems as possible within three hours. You may write solutions in a variety of common languages, including C++, Java, and Python. The test server automatically tests your program on a set of inputs, that are secret to you, and accepts your program if it produces the expected output within the allotted time. The problems test your programming skills and your ability to solve algorithmic problems.

KTH Challenge was the fourth contest in the Swedish Coding Cup 2025.

Contest

• Scoreboard (onsite and online combined)
• Problemset (open kattis)
• Solution Presentation Video

All material from the contest is licensed under Creative Commons Attribution-Share Alike 2.5 Sweden License.

Schedule

The contest took place on Saturday May 10, 2025. Room 3418, Math department, Lindstedtsvägen 25, floor 5 (Map).

• 13.30 Introduction and rules.
• 14.00 Competition start.
• 17.00 Competition ends.
• 17.15 Solutions.

Register

(Onsite registration) Register here by Friday, May 9th 20.00 to secure a spot onsite.
Only register here if you will come to KTH to compete.

Prizes

Prizes for top 5 onsite were: One ripe mango, one less ripe mango, 3 Kodsport ducks, one loaf of bread and one bag of polish candy. The winners picked prizes in order of placement, starting with first place.

Contact

Contact bmart@kth.se if you have any questions.