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( 2 0 points ) Quick Sort is a sub - quadratic sorting algorithm that inputs a list of comparable objects, picks an element from
points Quick Sort is a subquadratic sorting algorithm that inputs a list of comparable objects, picks an element from the list as the "pivot", partitions the list into two separate sublists values less than pivot and values greater than pivot and finally does this procedure recursively for each sublist. The following function implements quick sort in F#:
let rec qsort:int list int list function
x::xs let smaller for a in xs do if ax then yield a
let larger for b in xs do if bx then yield b
qsort smaller @ x @ qsort larger
a points Identify the base case of this recursive function.
b points Which element of the input list is considered to be the pivot in each recursive call?
c points Write the input list of every recursive call to qsort function when we want to sort the list of integers ; ; ; ;
d points Manipulate this function so that it sort a given list in decreasing order.
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