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1538.Guess-the-Majority-in-a-Hidden-Array

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1538.Guess-the-Majority-in-a-Hidden-Array

本题的本质就是以元素0为标准,用query(0,1,2,3)==query(1,2,3,i)来判断元素i>=4和元素0是否相等。

对于元素1,2,3,需要用下面的方式单独特判:

if (reader.query(0,2,3,4) == reader.query(1,2,3,4))
if (reader.query(0,1,3,4) == reader.query(1,2,3,4))
if (reader.query(0,1,2,4) == reader.query(1,2,3,4))