Answer
\begin{array}{l}{\text { Counting trivial comparisons, we have } 1 * n \text { comparison on level } 1, \text { with lists }} \\ {\text { of size } n / 2, \text { and on level } 2, \text { we have } 2 *(n / 2)=n \text { comparison, and so on. }} \\ {\text { Thus, we have } n \text { comparisons at each level. }}\end{array}
Work Step by Step
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