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Educational Codeforces Round 57 (Rated for Div. 2)

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成績:(exACM)

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AC3/7

Penalty57

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題目:Educational Codeforces Round 57 (Rated for Div. 2)


錯題題解:

D. Easy Problem

E. The Top Scorer

F. Inversion Expectation

G. Lucky Tickets