feat: add solution for Project Euler problem 144 (#4280)

* Added solution for Project Euler problem 144

* updating DIRECTORY.md

* Better variable names

* updating DIRECTORY.md

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

fpringle committed 4y ago

8c13a7786f4fe15af4d133fed14e5e2fb0888926

Parent: 256c319

Committed by GitHub <[email protected]> on 7/8/2021, 8:35:10 AM