Delete queue_on_two_stacks.py which duplicates queue_by_two_stacks.py (#8624)

* Delete queue_on_two_stacks.py which duplicates queue_by_two_stacks.py

* updating DIRECTORY.md

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

Christian Clauss committed 3y ago

2f9b03393c75f3ab14b491becae4ac5caf26de17

Parent: 5cb0a00

Committed by GitHub <[email protected]> on 4/8/2023, 12:16:19 PM