Hello, Codeforces!

I would like to invite you to the call for tasks for APIO 2026. This year the competition is hosted in Taiwan.

We follow the tradition since APIO 2022 — each task that's actually used in the contest will be rewarded with USD 400 after the end of the event.

Details of the task submission process are available here: https://www.apio2026.ntnu.tw/call-for-tasks.

The deadline for task submission is 15 March 2026 (23:59 UTC+8).

Looking forward to your interesting problems!