I want to sort an array in nonincreasing form.Element's of this array are 4 job profits.
so that profit[i] is profit of job i.I fill this array with user input that has no order.
I must use quick sort algorithm for this purpose.This algorithm sorts my array elements
correctly but i want to job numbers(array index for each job) sort with elements
concurrently.because i don't want to change job numbers.