Tasks

Please find the task statements of BOI 2021 below.

Also, for each task there is a spoiler explaining solutions, plus a test package with test data and more.

Practice Session

• keyboard (spoiler, test package [16M])

Day 1

• books (spoiler, test package [26M])
• servers (spoiler, test package [53M])
• watchmen (spoiler, test package [827M])

Day 2

• prison (spoiler, test package [83M])
• swaps (spoiler, test package [113K])
• xanadu (spoiler, test package [12M])