TL;DR: Come solve 3 spooky problems a day in October 2025 Long Challenge from October 27 through November 3, UTC 4am time.

I'm hosting a Halloween-themed contest on EldarVerse! Each day will feature three problems of increasing difficulty — from something like Codeforces Div2 A to something like Div2 E.

I want to thank asdasdqwer, JunkieDonkey, fextivity, and likithreddy949 for their help testing the problemset.

Special thanks to Golovanov399 for additional testing on a short notice <3

Hope to see you on the leaderboard!

P.S. Contest format is a mix of Meta Hacker Cup (download inputs, submit outputs) and Advent of Code (each problem is worth 100 points, each subsequent solver gets 1 less point).