Check Palindrome: Binary & Decimal

# include <iostream>
# include <conio.h>

using namespace std;

void binPaldrome(unsigned int);
void showbits(unsigned int);

int main()
{
    unsigned int no;
    for(;;)
    {
           printf("Check Palindrome ");
           system("time /t");
           
           switch(getch())
           {
                          case 27: return 0;
                          case 13:
                               cout<<"Enter the no: ";
                               cin>>no;
                               binPaldrome(no);
           }
    }
    return 0;
}

void binPaldrome(unsigned int n)
{
     unsigned int copy=n, rev=0;
     while(copy>0)
     {
                  rev=(rev*10)+copy%10;
                  copy/=10;
     }
     
     printf("%d ",n); showbits(n);
     if(rev==n) printf("\nDecimal Palindrome %c", 251);
     else printf("\nDecimal Palindrome X");
     
     int i, j, andmask, c1, c2, flag=0;
     for(i=15; i>=0; i--)
     {
               andmask=1<<i;
               c1 = n & andmask;
               if(c1!=0) break;               
     }
     
     for(j=0;;j++)
     {
             andmask=1<<j;
             c2 = n & andmask;
             if((i-2)==j) break;
             if(c1==c2 || (c1!=0 && c2!=0))
             {
                       i--;
                       andmask=1<<i;
                       c1 = n & andmask;                                   
             }
             else
             {
                 flag=1;
                 break;
             }             
     }
     
     if(flag==0) printf("\nBinary Palindrome %c", 251);
     else printf("\nBinary Palindrome X");
     printf("\n");
}

void showbits(unsigned int n)
{
     int i, k, andmask;
     for(i=15; i>=0; i--)
     {
               andmask=1<<i;
               k = n & andmask;
               k==0? printf("0") : printf("1");
     }
}