Optimization for pangram string (#2473)

* optimization for pangram string

* fixup! Format Python code with psf/black push

* Update strings/check_pangram.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* updating DIRECTORY.md

* Update strings/check_pangram.py

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>

Du Yuanchao committed 5y ago

8904af98a1e07a1f5b177c2d9f8f042c265e60b1

Parent: 7446e69

Committed by GitHub <noreply@github.com> on 9/26/2020, 2:58:59 PM