#include<stdio.h>
#define N 10
int main()
{
void inv(int *x,int n);
int i,a[10]={3,7,9,11,0,6,7,5,4,2},*p=a;
printf("The original array:\n");
for(i=0;i<10;i++)
printf("%4d",*p++);
printf("\n");
p=a;
inv(p,10);
printf("The array has been inverted:\n");
for(p=a;p<a+10;p++)
printf("%4d",*p);
printf("\n");
return 0;
}
void inv(int *x,int n)
{
int *p,m,temp,*i,*j;
m=(n-1)/2;
i=x;
j=x+n-1;
p=x+m;
for(;i<=p;i++,j--)
{
temp=*i;
*i=*j;
*j=temp;
}
return ;
}