Проверить билет на "счастливость"

#include<iostream>
using namespace std;
void main ()
{int a,b,c,d,e,f;
cout<<"1?";
cin>>a;
cout<<"2?";
cin>>b;
cout<<"3?";
cin>>c;
cout<<"4?";
cin>>d;
cout<<"5?";
cin>>e;
cout<<"6?";
cin>>f;
if(a+b+c==d+e+f)
{cout<<"schtastliviy";}
else
{cout<<"neschastliviy";};
}

int main(int argc, char **argv)
{
    const int lengthNumber = 6;
    
    int numbers[lengthNumber];
 
    int ticketNumber;
    std::cin>>ticketNumber;
 
    for(int i = 0; i < lengthNumber; i++)
    {
        numbers[i] = ticketNumber % 10;
        ticketNumber /= 10;
    }
 
    if((numbers[0] + numbers[1] + numbers[2])
            == (numbers[3] + numbers[4] + numbers[5]))
        std::cout<<"This is lucky ticket"<<std::endl;
    else
        std::cout<<"This is not lucky ticket"<<std::endl;
 
    return 0;
}

cin >> N;
int fist=0, sec = 0
for (int i=0; i<6; i++) {
  if (i <3) sec += N%10;
  else      first += N%10;
  N /= 10;
}
if (sec==first) ...

#include <iostream>
 
using namespace std;
 
int main()
{
 char  ticketNumber[7]="\0";
 
 cin>>ticketNumber;
 
 if(ticketNumber[0]+ticketNumber[1]+ ticketNumber[2]==
   ticketNumber[3]+ticketNumber[4]+ ticketNumber[5])
     cout<<"schtastliviy";
 else
     cout<<"neschastliviy";
 
 system("pause>0");
 return 0;
}

printf("ticket %06d is happy", N);