Проверка на полидромность

#include <iostream>
using namespace std;
int main()
{
 
    
     int Number,
        CopyNumber,os, m;
          
    cout << "Vvedite chislo";
    cin >> Number;
    CopyNumber=Number;
    
    for (;CopyNumber!=0; CopyNumber/=10)
        os=(CopyNumber%=10);
 
    if (Number==os)
        cout <<"Polindrom" <<"\n";
    else cout<<"Ne polindrom" <<"\n";
    return 0;
    
}

#include <iostream>
 
int main(){
  int num, num_, num__;
  std::cin >> num_;
  num = num_;
  for(num__ = num % 10, num /= 10; num; num__ = num__ * 10 + num % 10, num /= 10);
  std::cout << "Number " << num_ << " is " << (num_ == num__? "" : " not ") << "palindrome";
  return 0;
}

#include <iostream>
using namespace std;
 
int main()
{
   int n;
   
   cout<<"Vvedite chislo :";
   cin>>n;
   
   if(n/10000==n%10)
   {
      if(n%10000/1000==n%100/10)
      {
         cout<<n<<"\tpalindrom!!!"<<endl;
      }
   }
   else 
      cout<<n<<"\tne palindrom!!!"<<endl;
      
   system("pause");
   return 0;
}

#include <iostream>
 
using namespace std;
 
int main()
{
    int Number, CopyNumber, os = 0;
    cout << "Vvedite chislo: ";
    cin >> Number;
    CopyNumber = Number;
    while(CopyNumber != 0)
    {
        os = os*10 + CopyNumber%10;
        CopyNumber /= 10;
    }
    if (Number == os)
        cout << "Palindrom" << endl;
    else 
        cout<< "Ne palindrom" << endl;
    system("pause");
}