[tripzilch]

had to scroll far to find the problem description

> AHC058, held on December 14, 2025, was conducted over a 4-hour competition window. The problem involved a setting where participants could produce machines with hierarchical relationships, such as multiple types of “apple-producing machines” and “machines that build those machines.” The objective was to construct an efficient production planning algorithm by determining which types and hierarchies of machines to upgrade and in what specific order.

... so not a CRUD app but it beat humans at Cookie Clicker? :-)