collatz

int coll (int a,int c)
{
    //if a is odd number
    if(a%2==1 && a!=1)
    {
        coll ((3*a)+1, c++);
    }
     //If a is even number
    else if(a%2==0 && a!=1)
    {
        coll (a/2, c++);
    }

    //Base case returns the value of c

    else
        return c;
}