psf/black code formatting (#1421)
* added sol3.py for problem_20 * added sol4.py for problem_06 * ran `black .` on `\Python`
A
Ankur Chattopadhyay committed
7592cba417b1766b8c7c5721ffe916f5c14cdc60
Parent: 11e2207
Committed by Christian Clauss <[email protected]>
on 10/22/2019, 5:13:48 PM