Codeforces Round #620 (Div. 2)

Revision en3, by djm03178, 2020-02-13 19:38:50

안녕하세요, 코드포스! (Hello, Codeforces!)

I'm glad to invite you to Codeforces Round 620 (Div. 2). The contest will start at Feb/15/2020 16:05 (Moscow time), and it is rated for all participants with ratings under 2100.

You will be given 6 problems and one of the problems has 2 subtasks. The contest duration is 2 hours. The score distribution will be announced later.

All problems are prepared by me, with huge help from the testers with developing great solutions.

Thanks to 79brue, molamola., Savior-of-Cross, evenharder, cs71107, Justice_Hui, rkm0959, chpark1111, imeimi, InfiniteChallenge, gaelim, jh05013 (Good tester), yuto0518, N_jara, aryanc403, SnowGoose, solvemproblr, surung9898, and ko_osaga for testing the round. I would also like to thank 300iq for round coordination, and MikeMirzayanov for the great Codeforces and Polygon system.

Hope you enjoy the problems!

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  Rev. Lang. By When Δ Comment
en7 English djm03178 2020-02-15 19:50:46 404
en6 English djm03178 2020-02-15 18:24:14 143
en5 English djm03178 2020-02-15 13:25:46 118
en4 English djm03178 2020-02-13 21:19:46 162
en3 English djm03178 2020-02-13 19:38:50 0 (published)
en2 English djm03178 2020-02-13 18:59:58 101
en1 English djm03178 2020-02-13 18:55:35 1227 Initial revision (saved to drafts)