* Fix typehints in project_euler/problem01
Squashed commit of the following:
commit 6801d073b31bf702814861cd3b07b634ca295bfa
Author: Archaengel <god11341258@gmail.com>
Date: Mon Oct 5 16:40:10 2020 -0700
Fix typehints in project_euler/problem01
commit 29afc3af114abd1b99dc3f7c8fc99128229db131
Author: Archaengel <god11341258@gmail.com>
Date: Mon Oct 5 15:06:34 2020 -0700
Add typehints and default argument for project_euler/problem_01
* Add default args, typehints, and expand variable names for PE prob 02
* Add style improvements for first solution of PE Problem 02
* Add default arg and typehints for second solution of PE Problem 02
* Add default arg for third solution of PE Problem 02
* Add style improvements for 1st soln of PE problem 03
* Add default arg and typehints for 2nd soln of PE problem 03
* Add default arg for 3rd soln of PE problem 03
* Remove unnecessary newlines
* Remove unnecessary newlines
* Fix end of file for 2nd soln in PE problem 03