#include<stdio.h>
void scanf_num(int *a[], int n)
{
    int i;
    int *p;
    p = a[0];
    for (i = 0; i < n; i++, p++)
        scanf_s("%d", p);
}

void sort_num(int *a[], int n)
{
    int i, m = 0, h = 0, *t, *v;
    int **p;
    p = a;
    for (i = 0; i < n; i++)
    {
        if (p[m] > p[i])
            m = i;
        if (p[h] < p[i])
            h = i;
    }
    if (m != 0)
    {
        t = p[0];
        p[0] = p[m];
        p[m] = t;
    }
    if (h == 0)
        h = m;
    if (h != n - 1)
    {
        v = p[h];
        p[h] = p[n - 1];
        p[n - 1] = v;
    }
}

void print_num(int *a[], int n)
{
    int i;
    int *p;
    p = a[0];
    for (i = 0; i < n; i++, p++)
        printf("%d%c", *p, i < n - 1 ? ' ' : '\n');
}

int main()
{
    void scanf_num(int *a[], int n);
    void sort_num(int *a[], int n);
    void print_num(int *a[], int n);
    int x[10], *a[10];
    int i;
    for (i = 0; i < 10; i++)
        a[i] = &x[i];
    scanf_num(a, 10);
    sort_num(a, 10);
    print_num(a, 10);
    return 0;
}

哪里错了

要求sort_num函数用**p指向指针的指针

目测好像是这里出错了

for (i = 0; i < n; i++)
{
      if (p[m] > p[i])
           m = i;
      if (p[h] < p[i])
           h = i;

 }

[此贴子已经被作者于2017-1-16 22:48编辑过]

for (i = 0; i < n; i++)
{
      if (*p[m] > *p[i])   //比较的是值
           m = i;
      if (*p[h] < *p[i])
           h = i;
 }

下面都错了，正确的是

#include<stdio.h>
void scanf_num(int *a[], int n)
{
    int i;
    int **p;
    p = a;
    for (i = 0; i < n; i++, p++)
        scanf_s("%d", *p);
}

void sort_num(int *a[], int n)
{
    int i, m = 0, h = 0, t, v;
    int **p;
    p = a;
    for (i = 0; i < n; i++)
    {
        if (*p[m] > *p[i])
            m = i;
        if (*p[h] < *p[i])
            h = i;
    }
    if (m != 0)
    {
        t = *p[0];
        *p[0] = *p[m];
        *p[m] = t;
    }
    if (h == 0)
        h = m;
    if (h != n - 1)
    {
        v = *p[h];
        *p[h] = *p[n - 1];
        *p[n - 1] = v;
    }
}

void print_num(int *a[], int n)
{
    int i;
    int *p;
    p = a[0];
    for (i = 0; i < n; i++, p++)
        printf("%d%c", *p, i < n - 1 ? ' ' : '\n');
}

int main()
{
    void scanf_num(int *a[], int n);
    void sort_num(int *a[], int n);
    void print_num(int *a[], int n);
    int x[10], *a[10];
    int i;
    for (i = 0; i < 10; i++)
        a[i] = &x[i];
    scanf_num(a, 10);
    sort_num(a, 10);
    print_num(a, 10);
    return 0;
}