Question: Apply quicksort to sort the list W, E, L, C, O, M, E Is quicksort a stable sorting algorithm? Design an algorithm to rearrange elements

Apply quicksort to sort the list W, E, L, C, O, M, E

Is quicksort a stable sorting algorithm?

Design an algorithm to rearrange elements of a given array of n real numbers so that all its negative elements precede all its positive elements. Your algorithm should be both time- and space-efficient

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