Add CI/CD pipeline

Author: thanthtooaung-coding

.github/workflows/ci.yml

@@ -0,0 +1,48 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    
+    - name: Set up JDK 17
+      uses: actions/setup-java@v3
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+        cache: maven
+
+    - name: Validate Java files
+      run: |
+        for file in $(find . -name "Solution.java"); do
+          echo "Compiling $file"
+          javac "$file"
+        done
+
+    - name: Check README files exist
+      run: |
+        for dir in */; do
+          if [ -d "$dir" ] && [ "$dir" != ".git/" ] && [ "$dir" != ".github/" ]; then
+            if [ ! -f "${dir}README.md" ]; then
+              echo "Missing README.md in ${dir}"
+              exit 1
+            fi
+            if [ ! -f "${dir}Solution.java" ]; then
+              echo "Missing Solution.java in ${dir}"
+              exit 1
+            fi
+          fi
+        done
+
+    - name: Validate markdown files
+      uses: DavidAnson/markdownlint-cli2-action@v11
+      with:
+        globs: "**/*.md" 

.markdownlint.yaml

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+# Markdown linting rules
+default: true
+MD013: false  # Line length
+MD033: false  # Allow inline HTML
+MD041: false  # First line in file should be a top level heading 

README.md

@@ -1,5 +1,6 @@
 # Solving LeetCode Problems
 
+[![CI](https://github.com/thanthtooaung-coding/Solving-LeetCode-Problems/actions/workflows/ci.yml/badge.svg)](https://github.com/thanthtooaung-coding/Solving-LeetCode-Problems/actions/workflows/ci.yml)
 [![LeetCode Profile](https://img.shields.io/badge/LeetCode-Vinnn__96-FFA116?style=for-the-badge&logo=leetcode&logoColor=black)](https://leetcode.com/u/Vinnn_96/)
 
 This repository contains my solutions to various LeetCode problems. Each solution is implemented in Java and includes detailed explanations.

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.leetcode.solutions</groupId>
+    <artifactId>leetcode-solutions</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13.2</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project> 

test/SolutionTest.java

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+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class SolutionTest {
+    @Test
+    public void testTwoSum() {
+        Solution solution = new Solution();
+        int[] nums = {2, 7, 11, 15};
+        int target = 9;
+        int[] result = solution.twoSum(nums, target);
+        assertArrayEquals(new int[]{0, 1}, result);
+    }
+}