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  1. #include <stdio.h>
  2. void swap(int a,int b)
  3. {   int temp=a;
  4.     a=b;
  5.     b=temp;
  6. }
  7.  
  8. int Partition(int arr[], int low,int high)
  9. {   int pivot,i,j;
  10.     pivot=arr[low];
  11.     i=low+1;
  12.     j=high;
  13.     while(i<=j)
  14.     {   while(i<=j && arr[i]<=pivot)
  15.         {   i++;
  16.         }
  17.         while(j>=i && arr[j]>pivot)
  18.         {   j--;
  19.         }
  20.         if(i<j)
  21.         {   swap(arr[i],arr[j]);
  22.             i++;
  23.             j--;
  24.         }
  25.     }
  26.     swap(arr[low],arr[j]);
  27.     return j;
  28. }
  29.  
  30. void quickSort(int arr[], int low, int high)
  31. {   if(low<high)
  32.     {   int loc;
  33.         loc=Partition(arr,low,high);
  34.         quickSort(arr,low,loc-1);
  35.         quickSort(arr,loc+1,high);
  36.     }
  37. }
  38.  
  39. void main()
  40. {    int n,i,arr[50];
  41.     printf("Enter size:");
  42.     scanf("%d",&n);
  43.     printf("\nEnter elements:");
  44.     for(i=0;i<n;i++)
  45.     {   scanf("%d",&arr[i]);
  46.     }
  47.  
  48.     quickSort(arr,0,n-1);
  49.     printf("\nQuick Sorted array is\n");
  50.     for(i=0;i<n;i++)
  51.     {   scanf("%d",&arr[i]);
  52.     }
  53. }
Success #stdin #stdout 0s 5324KB
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Enter size:
Enter elements:
Quick Sorted array is
https://ideone.com/pNzZn4
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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