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Is it possible to get positive delta even if not solving a single problem?

Правка en1, от Night_Lord, 2021-09-09 07:42:02

How someone got positive delta without solving a single problem in Educational Codeforces Round 97 (Rated for Div. 2)?

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en1 Английский Night_Lord 2021-09-09 07:42:02 469 Initial revision (published)