Add static typing to backtracking algorithms (#2684)
* Added static typing to backtracking algorithms
* Ran psf/black to fix some minor issues.
* updating DIRECTORY.md
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: John Law <[email protected]> J
Jenia Dysin committed
e07766230d5aea4ddf090d9c5347a90e8c2137b3
Parent: 5de90aa
Committed by GitHub <[email protected]>
on 11/29/2020, 4:19:50 PM