a random element in array

Implement the QuickSort Algorithm; Your code should be in C++. The user should be allowed to choose between 3 options; which element considered a Pivot.
Pivot Choice 1: The last element in the list
Pivot Choice 2: The first element in the list
Pivot Choice 3: A random element in the array.

i solved the last element and the first element but i need your help plz to solve a random element
thank u
Read this:


always put srand() at the top of main.

int Pivot_Choice_3 = rand() % number_of_elemnts_in_the_list;
thank u soooo much :$
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