Resolved errors(need some reviewing, might have missed some errors)
Added comments
Changed print to return (to avoid None)
Removed <\div>
Reviewed exercises and numbered them
Removed ";" in some part (; doesn't trigger error)
Reviewed the python files
Update to lines 231-235: To convert a string representing a float to an integer, we should first convert the string to a float using the float() function, and then convert the resulting float to an integer using the int() function.