Question: Analyze SELECT to show that if n 140, then at least n/4 elements are greater than the median-of-medians x and at least n/4 elements

Analyze SELECT to show that if n ≥ 140, then at least ⌈n/4⌉ elements are greater than the median-of-medians x and at least ⌈n/4⌉ elements are less than x.

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