Create OneEasyProblemEveryDay/README.md #1

	name: Update Streak

	on:
	push:
	paths:
	- 'OneEasyProblemEveryDay/**' # Chỉ kích hoạt khi có thay đổi trong thư mục OneEasyProblemEveryDay

	jobs:
	update-streak:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v2

	- name: Use Node.js
	uses: actions/setup-node@v2
	with:
	node-version: '14'

	- name: Install dependencies
	run: npm install

	- name: Load streak from cache
	id: load-cache
	uses: actions/cache@v2
	with:
	path: streak
	key: streak

	- name: Get current date
	id: get-date
	run: echo "::set-output name=date::$(date +%Y-%m-%d)"

	- name: Check for new files
	id: check-files
	run: \|
	if git diff --quiet HEAD~ -- OneEasyProblemEveryDay; then
	echo "::set-output name=streak::0"
	else
	echo "::set-output name=streak::1"
	fi

	- name: Calculate new streak value
	id: calculate-streak
	run: \|
	if [ "${{ steps.get-date.outputs.date }}" != "${{ steps.load-cache.outputs.last-date }}" ]; then
	echo $(( ${{ steps.load-cache.outputs.streak }} + ${{ steps.check-files.outputs.streak }} ))
	else
	echo ${{ steps.load-cache.outputs.streak }}
	fi

	- name: Save streak to cache
	if: steps.calculate-streak.outputs.streak != steps.load-cache.outputs.streak
	uses: actions/cache@v2
	with:
	path: streak
	key: streak
	restore-keys: streak
	content: \|
	streak: ${{ steps.calculate-streak.outputs.streak }}
	last-date: ${{ steps.get-date.outputs.date }}

	- name: Update streak
	run: \|
	echo "Streak: ${{ steps.calculate-streak.outputs.streak }}"

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