花费 5 ms
Codeforces Round #744 (Div. 3)(A~G)

A. Casimir's String Solitaire 题意:给定一个只包含"A","B","C"的字符串,只能进行两种操作,1.消除"A"和"B",2.消除"C"和"B",问在进行多次操作后, ...

Wed Sep 29 10:38:00 CST 2021 0 107

 
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