feat: added LeetCode problem 1,2 #1

	# The objective of this GitHub Action is to update the leetcode DIRECTORY.md file (if needed)
	# when doing a git push
	name: leetcode_directory_writer
	on:
	pull_request:
	paths:
	- 'leetcode/src/**.cpp'
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- uses: actions/setup-python@v4
	with:
	python-version: 3.x
	- name: Add python dependencies
	run: \|
	pip install requests
	- name: Write LeetCode DIRECTORY.md
	run: \|
	python3 scripts/leetcode_directory_md.py 2>&1 \| tee leetcode/DIRECTORY.md
	- name: Commit and push changes
	uses: stefanzweifel/git-auto-commit-action@v4
	id: commit-push
	with:
	commit_message: 'docs: updating `leetcode/DIRECTORY.md`'
	branch: 'leetcode-directory-${{ github.sha }}'
	create_branch: true

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