QuickSort快速排序

/*
 * =====================================================================================
 *
 *       Filename:  QuickSort.c
 *
 *    Description:  
 *
 *        Version:  1.0
 *        Created:  2014年06月11日 21时30分51秒
 *       Revision:  none
 *       Compiler:  gcc
 *
 *         Author:  Wenxian Ni (Hello World~), niwenxianq@qq.com
 *   Organization:  AMS/ICT
 *
 * =====================================================================================
 */

#include<stdio.h>

void swap(int *p, int *q)
{
    int temp = *p;
    *p = *q;
    *q = temp;
}
int GetPos(int *p, int start, int end)
{
    int posData = *(p+start);
    while(start<end)
    {
        while(start<end&&*(p+end)>=posData)
            end--;
        if(end!=start)
        {
            *(p+start) = *(p+end);
            start++;
            while(start<end&&*(p+start)<=posData)
                start++;
            if(start!=end)
            {
                *(p+end) = *(p+start);
                end--;
            }
        }
    }
    *(p+end) = posData;
    return end;
}

void QuickSort(int *p, int start, int end)
{
    if(start >= end)
        return ;
    int pos = GetPos(p, start, end);
    QuickSort(p, start, pos-1);
    QuickSort(p, pos+1, end);
    return ;
}

int main()
{

    int a[10];
    int n;
    int i;
    while(~scanf("%d",&n))
    {
        for(i=0;i<n;i++)
        scanf("%d",&a[i]);
        QuickSort(a,0,n-1);
        for(i=0;i<n;i++)
        printf("%d ",a[i]);
    }
    return 0;
}