Write down the algorithm of quick sort, Data Structure & Algorithms

Assignment Help:

Write down the algorithm of quick sort.

An algorithm for quick sort:
void quicksort ( int a[ ], int lower, int upper )
{
 int i ;
 if ( upper > lower ) {
  i = split ( a, lower, upper ) ;
  quicksort ( a, lower, i - 1 ) ;
  quicksort ( a, i + 1, upper ) ; }
}
int split ( int a[ ], int lower, int upper ){
 int i, p, q, t ;


 p = lower + 1 ;
 q = upper ;
 i = a[lower] ;
 while ( q >= p )
 {
  while ( a[p] < i )
   p++ ;
  while ( a[q] > i )
   q-- ;
  if ( q > p )
  {
   t = a[p] ;
   a[p] = a[q] ;
   a[q] = t ;
  }
 }
 t = a[lower] ;
 a[lower] = a[q] ;
 a[q] = t ;
 return q ; }


Related Discussions:- Write down the algorithm of quick sort

Progrrame, how to write a code for for a company , for calculate the salary...

how to write a code for for a company , for calculate the salary pay

ALGORITHMS, WRITE AN ALGORITHM TO READ TWO NUMBERS AND PRINT THE LOWER VALU...

WRITE AN ALGORITHM TO READ TWO NUMBERS AND PRINT THE LOWER VALUE

Compute the shortest paths to all network nodes, (i)  Consider a system usi...

(i)  Consider a system using flooding with hop counter. Suppose that the hop counter is originally set to the "diameter" (number of hops in the longest path without traversing any

Branch and Bound method, give some examples of least cost branch and bound ...

give some examples of least cost branch and bound method..

Avl tree, Example: (Single rotation into AVL tree, while a new node is inse...

Example: (Single rotation into AVL tree, while a new node is inserted into the AVL tree (LL Rotation)) Figure: LL Rotation The rectangles marked A, B & C are trees

Algorithm, write an algorithm given each students name and grade points for...

write an algorithm given each students name and grade points for six courses.find his grade point average and group students into the gpa groups 3.5

Queue, 1. Show the effect of each of the following operations on queue q. A...

1. Show the effect of each of the following operations on queue q. Assume that y (type Character) contains the character ‘&’. What are the final values of x and success (type boole

How does an array differ from an ordinary variable, Normal 0 fa...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Illustrate the varieties of arrays, Varieties of Arrays In some languag...

Varieties of Arrays In some languages, size of an array should be established once and for all at program design time and can't change during execution. Such arrays are known a

5/10/2013 5:08:29 AM

Thanks for suggesting me this answer, appreciate your knowledge

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd