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‎.github/workflows/ci.yml‎

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name: Java CI/CD
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on:
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push:
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branches: [ main, develop ]
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pull_request:
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branches: [ main, develop ]
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jobs:
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build:
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runs-on: ubuntu-latest
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strategy:
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matrix:
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java: [ '17', '21', '23' ]
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up JDK ${{ matrix.java }}
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uses: actions/setup-java@v4
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with:
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java-version: ${{ matrix.java }}
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distribution: 'temurin'
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cache: maven
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- name: Build with Maven
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run: mvn clean compile
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- name: Run tests
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run: mvn test
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- name: Generate test report
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if: always()
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run: mvn surefire-report:report
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- name: Check code style
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run: mvn checkstyle:check || true
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- name: Upload test results
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if: always()
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uses: actions/upload-artifact@v4
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with:
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name: test-results-java-${{ matrix.java }}
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path: target/surefire-reports/
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code-quality:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up JDK 23
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uses: actions/setup-java@v4
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with:
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java-version: '23'
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distribution: 'temurin'
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cache: maven
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- name: Build and analyze
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run: mvn clean verify
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- name: Check for compilation errors
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run: mvn compiler:compile
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dependency-check:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up JDK 23
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uses: actions/setup-java@v4
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with:
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java-version: '23'
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distribution: 'temurin'
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cache: maven
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- name: Check for dependency updates
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run: mvn versions:display-dependency-updates
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- name: Check for plugin updates
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run: mvn versions:display-plugin-updates

‎.github/workflows/welcome.yml‎

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name: Welcome New Contributors
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on:
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issues:
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types: [opened]
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pull_request_target:
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types: [opened]
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jobs:
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welcome:
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runs-on: ubuntu-latest
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steps:
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- name: Welcome new issue creator
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if: github.event_name == 'issues'
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uses: actions/github-script@v7
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with:
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script: |
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github.rest.issues.createComment({
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issue_number: context.issue.number,
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owner: context.repo.owner,
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repo: context.repo.repo,
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body: '👋 Welcome to DSA Practice Ground! Thank you for opening your first issue. Please make sure to:\n\n1. Check existing issues to avoid duplicates\n2. Describe what you\'re trying to implement\n3. Share what you\'ve tried so far\n4. Include relevant test failures or errors\n\nHappy learning! 🚀'
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})
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- name: Welcome new PR creator
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if: github.event_name == 'pull_request_target'
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uses: actions/github-script@v7
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with:
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script: |
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github.rest.issues.createComment({
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issue_number: context.issue.number,
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owner: context.repo.owner,
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repo: context.repo.repo,
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body: '🎉 Thank you for your first contribution! Please ensure:\n\n1. All tests pass (or explain why they\'re commented)\n2. Wiki guide is included for new algorithms/structures\n3. Code follows existing patterns\n4. No solutions are provided (skeleton + tests only)\n\nA maintainer will review your PR soon. Thanks for helping others learn! 💻'
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})

‎.gitignore‎

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target/
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!.mvn/wrapper/maven-wrapper.jar
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!**/src/main/**/target/
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!**/src/test/**/target/
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### IntelliJ IDEA ###
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.idea/modules.xml
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.idea/jarRepositories.xml
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.idea/compiler.xml
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.idea/libraries/
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*.iws
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*.iml
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*.ipr
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### Eclipse ###
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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.sts4-cache
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### NetBeans ###
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/nbproject/private/
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/nbbuild/
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/dist/
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/nbdist/
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/.nb-gradle/
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build/
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!**/src/main/**/build/
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!**/src/test/**/build/
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### VS Code ###
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.vscode/
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### Mac OS ###
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.DS_Store

‎.idea/.gitignore‎

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‎.idea/encodings.xml‎

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‎.idea/material_theme_project_new.xml‎

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‎.idea/misc.xml‎

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‎.idea/vcs.xml‎

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