希尔排序

package Myjava;

public class ShellSort {
    public void sort(int[] data){
        int h=1;
        while (h<data.length/3){
            h=h*3+1;
        }
        while(h>0){
            for(int i=h;i<data.length;i++){//49,38,65,97,76,13 ,27
                int temp=data[i];//13(5)
                if(data[i]-data[i-h]<0){//13(5) 38(1)
                    int j=i-h;//1
                    for(;j>=0&&data[j]-temp>0;j=j-h){
                        data[j+h]=data[j];
                    }
                    data[j+h]=temp;
                }
            }h=(h-1)/3;
        }
    }

    public static void main(String[] args) {
        int[] num={49,38,65,97,76,13 ,27};
        ShellSort shellSort=new ShellSort();
        shellSort.sort(num);
        System.out.println(java.util.Arrays.toString(num));
    }
}