BP神经网络的Matlab编程

#include
#include
#define RUN 1
void swap(int *a, int *b)
{
int temp;
temp = *a;
*a = *b;
*b = temp;
}

void change(int *p)
{
int i;
int j;
int *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);
}
}
}
swap(pmin, p);
swap(pmax, (p + 12));
#if RUN
printf("%d %d\n", *p, *(p + 12));
#endif
pmin = (p + 1);
for (i = 0 ; i < 5 ; i++)
{
for (j = 0 ; j < 5 ; j++)
{
if (*pmin > *(p + 5*i + j) && (i != 0 || j != 0))
{
pmin = (p + 5*i + j);
}
}
}
swap(pmin, (p + 4));
#if RUN
printf("%d\n", *(p + 4));
#endif
pmin = (p + 1);
for (i = 0 ; i < 5 ; i++)
{
for (j = 0 ; j < 5 ; j++)
{
if (*pmin > *(p + 5*i + j) && (i != 0 || j != 0) && (i != 0 || j != 4))
{
pmin = (p + 5*i +j);
}
}
}
swap(pmin, (p + 5*4));
#if RUN
printf("%d\n", *(p + 20));
#endif
pmin = (p + 1);
for (i = 0 ; i < 5 ; i++)
{
for (j = 0 ; j < 5 ; j++)
{
if (*pmin > *(p + 5*i + j) && (i != 0 || j != 0) && (i != 4 || j != 0) && (i != 0 || j != 4))
{
pmin = (p + 5*i + j);
}
}
}
swap(pmin, (p + 4*5 + 4));
#if RUN
printf("%d\n", *(p + 24));
#endif
}

main()
{
int a[5][5];
int *p1 = &a[0][0];
int i, j;
printf("input the numbers:\n");
for (i = 0 ; i < 5 ; i++)
{
for (j = 0 ; j < 5 ; j++)
{
scanf("%d", &a[i][j]);
}
}
change(p1);
printf("the new is:\n");
for (i = 0 ; i < 5 ; i++)
{
for (j = 0 ; j < 5 ; j++)
{
printf("%d ", *(p1 + 5*i + j));
}
printf("\n");
}
getch();
}