대회 목록 확인

https://clist.by/

CLIST

https://competitiveprogramming.info/calendar

Competitive Programming Contests Calendar

https://calendar.google.com/calendar/u/0/embed?height=800&wkst=1&bgcolor=%23009999&ctz=Asia/Seoul&src=OW1ydHY5NTQxdHQ1aTRwYXZ1bnAzcGJ0YmdAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ&src=azIzajIzM2d0Y3ZhdTdhOHVsazJwMzYwbTRAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ&src=YXBwaXJpby5jb21fYmhnYTNtdXNpdGF0ODVtaGRybmc5MDM1amdAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ&color=%230B8043&color=%238E24AA&color=%23A79B8E&showTitle=0&pli=1 

Atcoder (personally managed)

https://github.com/nishanthvijayan/CoderCalendar-Extensions

GitHub - nishanthvijayan/CoderCalendar-Extensions: Browser extensions for competitive programming enthusiasts