题目

对于含有n个元素的关键码序列{k1,k2,...,kn},当且仅当满足关系ki≤k2i且ki≤k2i+1(i=1,2,...,[n/2])时称为小根堆。下面关键码序列中,( )是小根堆。

作答
131,158,288,325,763,522,451,617
131,325,451,617,522,288,158,763
763,617,325,522,451,288,131,158
763,451,522,617,131,288,325,158
答案/解析
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