Natural selection is the differential survival and reproduction of individuals due to differences in phenotype.It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations. Charles Darwin popularised the term natural selection, contrasting it with artificial selection, which in his view is intentional, whereas natural selection is not.In computer science, a selection algorithm is an algorithm for finding the kth smallest number in a list or array; such a number is called the kth order statistic.This includes the cases of finding the minimum, maximum, and median elements. There are O(n)time (worstcase linear time) selection algorithms, and sublinear performance is possible for structured data; in the extreme, O(1) for an ...
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