public class QuickSort {
	public static void quickSortHelp(int[] arr) {
		quickSort(arr,0, arr.length-1);
	}
	public static void quickSort(int[] arr,int low, int high) {
		if(low<high) {
			int partition = partition(arr,low,high);
			quickSort(arr,low, partition-1);
			quickSort(arr,partition+1, high);
		}
		
	}
	public static int partition(int[] arr,int low,int high) {
		while(low<high) {
			while(arr[high]>=arr[low]&&low<high){
				high--;
			}
			Swap(arr,high,low);
			while(arr[low]<=arr[high]&&low<high) {
				low++;
			}
			Swap(arr,high,low);
		}
		return low;
	}
	public static void Swap(int[] arr,int high,int low) {
		int temp = arr[low];
		arr[low] =arr[high];
		arr[high] = temp;
	}
	public static void main(String[] args) {
		int[] array = { 2, 8, 5, 6, 10, 5, 4, 6, 11, 15, 3 };
		quickSortHelp(array);
		for (int s : array) {
			System.out.println(s);
		}
	}
}