Add solution for Project Euler problem 102 (#4051)

* Added solution for Project Euler problem 102

* Got rid of map functions

* Snake case variable names

* Type hints

* updating DIRECTORY.md

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

fpringle committed 5y ago

0ccb213c1140d094e4c86bc04c767290b4ebaf15

Parent: ad5108d

Committed by GitHub <[email protected]> on 12/23/2020, 5:48:19 PM