sorting - Quicksort with a twist in c++ -


when sorting array of objects objects might swap places. can expensive in terms of time , space, each swap requires copy object.

in cases sorting entire array not required. example: given array of times marathon. array should sorted fastest 200 times correctly sorted @ start of array. 1 might interested in order of 100 worst times. important here array apart top , buttom not have sorted.

the function should implement not takes pointer array of template class , size of array parameters. takes 2 further parameter front , end . function change given array first front elements smallest in entire array , these front elements sorted. similarly, highest end elements @ end of array , these end elements sorted. other elements don't have sorted.

example, array ["michael", "sam", "chris", "tom", "anna", "nick", "brian", "lisa"] , front =2 , end =3 array after calling function might ["anna", "brian", "michael", "lisa", "chris", "nick", "sam", "tom"] note, important first 2 names "anna" , "brian", array finishes "nick", "sam", "tom"

finally function take 2 further parameters of type int passed reference. when function finishes these contain number of swaps , number method calls during run of function.

the function declaration template < class t> void quicksort(t * array,int size, int front, int end, int & calls, int & swaps) function should based on quicksort algorithm. hence need write addition function contains recursive calls. count number of swaps , calls should use global variables.

can me in this?

sounds homework. rather store entire object array, consider storing pointer object. sort moves pointers. it'll fast.


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