Is there a modern equivalent to the mentioned research test program that allows browsing submissions? I would love to have a known problem set with browseable

Is there a modern equivalent to the mentioned research test program that allows browsing submissions? I would love to have a known problem set with browseable submissions in different languages. To see if I can get close to the optimal solution with my own preferred languages. But also to learn what an idiomatic solution in another language looks like. The research problem from the article is interesting because it encompasses IO, some data structures and an algorithm for generating output. edit: aside from single-binary problem sets like this, it would be nice to also have a more open category for "distributed systems" or "concurrency-related" problems to solve with modern coroutines/fibers/greenthreads or even AMQP-style message queues.