选择排序

#include
void swap(int *p1, int *p2)
{
        int temp;
        temp=*p1;
        *p1=*p2;
        *p2=temp;
}
void select_sort(int *start, int n, int increase)
{
        int *p1, *p2, *p3;
        if(increase)
        {
                for(p1=start; p1                {
                        p3=p1;
                        for(p2=p1+1; p2                        {
                                if(*p2<*p3)
                                        p3=p2;
                        }
                        swap(p1,p3);
                }
        }
        else
        {
                for(p1=start; p1                {
                        p3=p1;
                        for(p2=p1+1; p2                        {
                                if(*p2>*p3)
                                        p3=p2;
                        }
                        swap(p1,p3);
                }
        }

}

void printarray(int *a,int n)
{
        int i;
        for(i=0; i                printf("%3d",*(a+i));
        printf("\n");
}

int main(void)
{
        int a[10]={1,5,2,3,0,7,4,9,6,8};
        select_sort(a,10,1);
        printarray(a,10);
        return 0;
}