Educational Codeforces Round 57 (Rated for Div. 2)

get人生第二场CF!

成绩:(exACM)

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


错题题解:

D. Easy Problem

E. The Top Scorer

F. Inversion Expectation

G. Lucky Tickets

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转载自www.cnblogs.com/xht37/p/10198321.html