Double Factorial problem

[nesstle]

how to write the code for this factoriel " F=4(3n+2m)!! +6 " with "goto" comand.

i tried some ways but couldnt do it..errors

[shadowCODE]

Use this basic structure to fix build your code properly

#include <iostream>
using namespace std;

int main()
{
   int n, fact = 1;

   cout<<"enter the number for finding factorial = ";
   cin>>n;

   a:
   if(n>0)
   {
       fact = fact * n;
       n --;
       goto a;
    }

    cout<<"factorial = "<<fact<<endl;
}