diff --git a/sorting/quick_sort.c b/sorting/quick_sort.c new file mode 100644 index 0000000..41f131c --- /dev/null +++ b/sorting/quick_sort.c @@ -0,0 +1,68 @@ +// quick sorting + +#include + +void swap(int* a, int* b) +{ + int t = *a; + *a = *b; + *b = t; +} + +int partition (int arr[], int low, int high) +{ + int pivot = arr[high]; + int i = (low - 1); + + for (int j = low; j <= high - 1; j++) + { + if (arr[j] < pivot) + { + i++; + swap(&arr[i], &arr[j]); + } + } + swap(&arr[i + 1], &arr[high]); + return (i + 1); +} + +void quickSort(int arr[], int low, int high) +{ + if (low < high) + { + int pi = partition(arr, low, high); + quickSort(arr, low, pi - 1); + quickSort(arr, pi + 1, high); + } +} + +void printArray(int arr[], int size) +{ + int i; + for(i = 0; i < size; i++) + printf("%3d",arr[i]); + printf("\n"); +} + + +int main() +{ + int n,i,value; + printf("enter number of number elements in array\n"); + scanf("%d",&n); + int arr[n]; + printf("\nenter array elements\n"); + for(i=0;i