Welcome to the Kattis Problem Archive

Here you can find hundreds of programming problems to solve. If you're new here you're very much welcome! Just register and start solving.
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Suggested problems

Difficulty [?]Problem
Trivial
Hello World! 1.1 pt
Easy
Reverse 1.2 - 1.5 pt
Skru op! 1.3 - 1.5 pt
Medium
Hard
Rings 5.5 pt

Ranklist

# User Score [?]
1 10355.0
2 9925.8
3 9869.8
4 8803.5
5 8535.5
6 8319.9
7 8248.6
8 7806.8

Countries

Rank Country Score [?]
1 6269.7
2 5895.8
3 5883.8
4 4576.5
5 4492.9
6 3856.0
7 2863.6
8 2845.6