We're thrilled to invite you to participate in our upcoming Educational Round 1 programming contest at SeriousOJ.
Problem setter : thakuremon, Bullet, _ASRafi__, Abid_52, _MJiH_
Problems: 5(one problem divided into two subtasks)
Duration: 2:15 hours
Difficulty: Similar to Codeforces Div 3
Rated : Level 0 — Level 10
Special thanks to CLown1331, owner of SeriousOJ.
Update1 : Congrats to the winners!
norxondor_gorgonax
Update 2 : Editorial
Registration: Please register for the contest on SeriousOJ. If you encounter any issues on the register, be sure to check your spam folder for the confirmation email.
Good luck & Have fun!!!
Excited to take part in edu round 1. Thanks SeriousOJ, for arranging such contest so frequently.
Good luck contestants
Will we get solutions after the contest. It will be of much help, if you can provide. Thankyou.
You will receive the editorial for each problem right after the contest on our platform. The editorial post link will also be provided in this blog.
Thankyou sir
It seems that you do not actuall pass --edition=2021 to rust compiler
I am also not sure now if you have optimization level 2 or 3 enabled
You are correct on both counts, will fix them both. Sorry for the inconvenience.
E is a nice problem. It also can be solved using centroid decomposition by merging the subtree contributions at each centroid.