int is_ter(int x)
{
//it is not a TWOs nor a FIVEs and not 1.0
g:
if(x%2 !=0 && x%5 !=0 && x!=1 )
return 0;
// make sure it is 1.0
if(x%2 !=0 && x%5 !=0 && x==1 )
return 1;
//check if it is a two
if(x%2==0){
x/=2;
goto g;
}
if(x%5==0)
{
x/=5;
goto g;
}
}