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

Assignment Help:

Ans.

An algorithm for the quick sort is as follows:

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 the algorithm of the quick sort

Determine yiq colour model, Determine YIQ Colour Model Whereas an RGB m...

Determine YIQ Colour Model Whereas an RGB monitor requires separate signals for the red, green, and blue components of an image, a television monitor uses a single composite si

Graph, multilist representation of graph

multilist representation of graph

State an algorithm which inputs 3 - digit code for 280 items, A small shop ...

A small shop sells 280 different items. Every item is identified by a 3 - digit code. All items which start with a zero (0) are cards, all items which start with a one (1) are swee

Average case anaysis, what is the impoartance of average case analysis of ...

what is the impoartance of average case analysis of algorithm

Recursion, difference between recursion and iteration

difference between recursion and iteration

Write the algorithm to find input and output value, This algorithm inputs 5...

This algorithm inputs 5 values and outputs how many input numbers were positive and how many were negative. Data to be used: N = 1, -5, 2, -8, -7

In-order traversal, Write steps for algorithm for In-order Traversal Th...

Write steps for algorithm for In-order Traversal This process when implemented iteratively also needs a stack and a Boolean to prevent the execution from traversing any portion

Merge sort , What is the best-case number of comparisons performed by merge...

What is the best-case number of comparisons performed by mergesort on an input sequence of 2 k distinct numbers?

Algorithm.., write an algorithm to sort given numbers in ascending order us...

write an algorithm to sort given numbers in ascending order using bubble sort

Explain th term input and output- pseudocode, Explain th term input and ou...

Explain th term input and output-  Pseudocode Input and output indicated by the use of terms input number, print total, output total, print "result is" x and so on.

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