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排序_希尔排序_.cpp
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排序_希尔排序_.cpp
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/*Shell排序数组
? version: Shell插入排序
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifndef N
#define N 100
#endif // N
inline int Shell_Sort(int arr[],int n)
{
int i, j, k, tmp;
int incre; //选择一个增量,这里我们用简单的二分法
for(incre=n/2;incre>0;incre/=2)
{
printf("%4d,%d\n", tmp,incre);
for(i=incre;i<n;i++)
{
tmp=arr[i];
for(j=i;j>=incre&&arr[j-incre]>tmp;j-=incre)
{
arr[j]=arr[j-incre];
}
arr[j]=tmp;
}
for(int s = 0;s < 10;s++)
{
printf("%4d", arr[s]);
}
printf("\n");
}
}
int main( )
{
int i;
int arr[10]={5,4,5,6,8,9,1,4,3,2}; /*定义数组及变量为基本整型*/
//printf("please enter 10 numbers: \n");
//for(i = 0;i < N/10;i++)
//{
// scanf("%d", &arr[i]);
//}
Shell_Sort(arr,10);
printf("\n");
printf("the ordered array is: \n");
for(i = 0;i < 10;i++)
{
printf("%4d", arr[i]);
}
}