Hi everyone!

I would like to invite you to the Weekly Training Farm 20 ! The problemsetter is me (zscoder) and the tester and quality controllers are dreamoon_love_AA and drazil.

It will be a contest in ACM-ICPC style and contains 6 problems. The difficulty is around 500-1250-1750-2000-2250-2250 (compared to Div. 2 Contests)

The contest begins at 20:00 UTC+8 and lasts for two hours.

To join the contest, join this group (as participant) first and find Weekly Training Farm 20 on the Group Contest tab.

Reminder : The contest will start in around 5 hours from now.

Update : Less than 1 hour before start. Good luck!

Here's the editorial.