#include <stdio.h>
#include <conio.h>
int main()
{
    int a[] = {1,8,2,9,7,11};
    int *p = a;
    int *q = a+5;
    
    while(p<q){
              int temp = *p;
              *p = *q;
              *q = temp; 
              p++;
              q--;
    }/*
    for(int i =0 ;i<3;i++){
            int temp = *(p+i);
            *(p+i) = *(p+5-i) ;
            *(p+5-i) =temp;
            
    }*/
    ///////////////////
    p=a;
    for(int i = 0;i<6;i++){
            printf("%d ",*(p++));        
    }
    getch();
}