#include<stdio.h>void ShellSort(int array[],int length){    int i,j,h,temp;    for(h=length/2;h>0;h=h/2)    {        for(i=h;i<length;i++)        {            temp=array[i];            for(j=i-h;j>=0;j-=h)            {                if(temp<array[j])                {                    array[j+h]=array[j];                }                else break;            }            array[j+h]=temp;        }    }}int main(){    int a[]={3,1,5,3,4,7,1};    ShellSort(a,7);    for(int i=0;i<7;i++) printf("%d ",a[i]);    return 0;}