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Saturday 24 May 2014

PROGRAM IN LINUX C FOR QUICK SORT

5/24/2014 05:45:00 pm
#include<stdio.h>
  void quicksort(int [10],int,int);
  int main(){
  int x[20],size,i;
  printf("Enter Number of Items : ");
  scanf("%d",&size);
  printf("Enter %d elements: \n",size);
  for(i=0;i<size;i++)
  scanf("%d",&x[i]);
  quicksort(x,0,size-1);
  printf("\n Sorted Items: n");
  for(i=0;i<size;i++)
  printf("%d ",x[i]);
  return 0;
}
void quicksort(int x[10],int first,int last){
    int pivot,j,temp,i;
     if(first<last){
         pivot=first;
         i=first;
         j=last;
         while(i<j){
             while(x[i]<=x[pivot]&&i<last)
                 i++;
             while(x[j]>x[pivot])
                 j--;
             if(i<j){
                 temp=x[i];
                  x[i]=x[j];
                  x[j]=temp;}
         }
         temp=x[pivot];
         x[pivot]=x[j];
         x[j]=temp;
         quicksort(x,first,j-1);
         quicksort(x,j+1,last); }

}

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