程序代码：

#include<stdio.h>
void change(int(*p)[5])
{
    int m = 0, n = 0, m1 = 2, n1 = 2, m2 = 2, n2 = 2, m3 = 2, n3 = 2, m4 = 2, n4 = 2;
    int i, j;
    int t, t1, t2, t3, t4;
    for (i = 0; i < 5; i++)
        for (j = 0; j < 5; j++)
        {
            if (*(*(p + m) + n) < *(*(p + i) + j))
            {
                m = i;
                n = j;    
            }
        }
    t = *(*(p + m) + n);
    *(*(p + m) + n) = *(*(p + 2) + 2);
    *(*(p + 2) + 2) = t;
    for(i=0;i<5;i++)
        for (j = 0; j < 5; j++)
        {
            if (*(*(p + m1) + n1) > *(*(p + i) + j))
            {
                m1 = i;
                n1 = j;
            }
        }
    t1 = *(*(p + m1) + n1);
    *(*(p + m1) + n1) = *(*(p + 0) + 0);
    *(*(p + 0) + 0) = t1;
    for(i=0;i<5;i++)
        for (j = 0; j < 5; j++)
        {
            if (*(*(p + m2) + n2) > *(*(p + i) + j) && *(*(p + i) + j) > *(*(p + 0) + 0))
            {
                m2 = i;
                n2 = j;
            }
        }
    t2 = *(*(p + m2) + n2);
    *(*(p + m2) + n2) = *(*(p + 0) + 4);
    *(*(p + 0) + 4) = t2;
    for (i = 0; i<5; i++)
        for (j = 0; j < 5; j++)
        {
            if (*(*(p + m3) + n3) > *(*(p + i) + j) && *(*(p + i) + j) > *(*(p + 0) + 4))
            {
                m3 = i;
                n3 = j;
            }
        }
    t3 = *(*(p + m3) + n3);
    *(*(p + m3) + n3) = *(*(p + 4) + 0);
    *(*(p + 4) + 0) = t3;
    for (i = 0; i<5; i++)
        for (j = 0; j < 5; j++)
        {
            if (*(*(p + m4) + n4) > *(*(p + i) + j) && *(*(p + i) + j) > *(*(p + 4) + 0))
            {
                m4 = i;
                n4 = j;
            }
        }
    t4 = *(*(p + m4) + n4);
    *(*(p + m4) + n4) = *(*(p + 4) + 4);
    *(*(p + 4) + 4) = t4;
}

void print(int(*p)[5])
{
    int i, j;
    for (i = 0; i < 5; i++)
    {
        for (j = 0; j < 5; j++)
            printf("%5d ", *(*(p + i) + j));
        printf("\n");
    }
}

int main()
{
    void change(int(*p)[5]);
    void print(int(*p)[5]);
    int a[5][5] = { {0,1,2,3,4},{5,6,7,8,9},{10,11,12,13,14},{15,16,17,18,19},{20,21,22,23,24} };
    int(*p)[5];
    p = a;
    change(p);
    print(p);
    return 0;
}

程序代码：

#include<stdio.h>
void change(int *p)
{
    int i, j, temp;
    int *pmax, *pmin;
    pmax = p;
    pmin = p;
    for(i=0;i<5;i++)
        for (j = 0; j < 5; j++)
        {
            if (*pmax < *(p + 5 * i + j))
                pmax = p + 5 * i + j;
            if (*pmin > *(p + 5 * i + j))
                pmin = p + 5 * i + j;
        }
    temp = *(p + 12);
    *(p + 12) = *pmax;
    *pmax = temp;
    temp = *p;
    *p = *pmin;
    *pmin = temp;
    pmin = p + 1;
    for (i = 0; i < 5; i++)
        for (j = 0; j < 5; j++)
            if ((*(p + 5 * i + j) > *p) && (*pmin > *(p + 5 * i + j)))
                pmin = p + 5 * i + j;
    temp = *pmin;
    *pmin = *(p + 4);
    *(p + 4) = temp;
    pmin = p + 1;
    for (i = 0; i < 5; i++)
        for (j = 0; j < 5; j++)
            if ((*(p + 5 * i + j) > *(p + 4)) && (*pmin > *(p + 5 * i + j)))
                pmin = p + 5 * i + j;
    temp = *pmin;
    *pmin = *(p + 20);
    *(p + 20) = temp;
    pmin = p + 1;
    for (i = 0; i < 5; i++)
        for (j = 0; j < 5; j++)
            if ((*(p + 5 * i + j) > *(p + 20)) && (*pmin > *(p + 5 * i + j)))
                pmin = p + 5 * i + j;
    temp = *pmin;
    *pmin = *(p + 24);
    *(p + 24) = temp;
}

int main()
{
    void change(int *p);
    int a[5][5] = { {0,1,2,3,4},{5,6,7,8,9},{10,11,12,13,14},{15,16,17,18,19},{20,21,22,23,24} };
    int i, j;
    int *p;
    p = &a[0][0];
    change(p);
    for (i = 0; i < 5; i++)
    {
        for (j = 0; j < 5; j++)
            printf("%5d", a[i][j]);
        printf("\n");
    }
    return 0;
}