Codeforces Round #678 (Div. 2)?

Правка en1, от majiamajia33, 2020-10-23 19:01:19

Codeforces Round #678 (Div. 2) Less than 24 hours after leaving the game, no announcement, no author list, will this be the most mysterious div2 ever?

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en1 Английский majiamajia33 2020-10-23 19:01:19 182 Initial revision (published)