SIGN IN SIGN UP

added add algorithm (#1856)

* added add algorithm

* Update and rename check/add.py to math/add.py

Co-authored-by: Christian Clauss <cclauss@me.com>
S
Shrutika Bansal committed
3735e742967b63add1ce6878c77a35b084579d08
Parent: 8bf380c
Committed by GitHub <noreply@github.com> on 4/12/2020, 5:53:28 PM