Uploaded January 2021 | Updated September 2026, 3 weeks ago

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Problems: codeforces.com/contestInvitation/47b8fb8b3fd6adb70dbc4d8c1f2a413587fafae9
Live chat at twitch.tv/errichto

Streaming schedule: calendar.google.com/calendar/embed?src=0qldhlvr0oqd867pdi8nkm8s04%40group.calendar.google.com

- FAQ & GitHub Wiki: github.com/Errichto/youtube/wiki/FAQ
- Discord: discord.gg/YWb3Bmg
- Twitch: twitch.tv/errichto
- Main YT channel with educational videos: youtube.com/errichto