希尔排序

package sort;

public class ShellSort {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        int[] arr={70,80,31,37,10,1,48,60,33,80};
        
        shellSort(arr);
        
        for(int i=0; i<arr.length; i++)
            System.out.print(arr[i]+" ");
    }

    private static void shellSort(int[] arr) {
        // TODO Auto-generated method stub
        
        int i,j,k;
        int gap,temp;
        
        for(gap=arr.length/2; gap>0; gap=gap/2)
        {
            for(i=0; i<gap; i++)
            {
                for(j=i+gap; j<arr.length; j=j+gap)
                {
                    if(arr[j]<arr[j-gap])
                    {
                        temp=arr[j];
                        arr[j]=arr[j-gap];
                        arr[j-gap]=temp;
                    }
                }
            }
        }
    }

}