Update README.md

Author: ahmedrafat-SW

README.md

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 # Problem Solving In Java
+
+## About
+
+This is a problem-solving repository in Java. It includes solutions to various problems from platforms like LeetCode and HackerRank, designed to aid in interview preparation and improve coding skills.
+
+## Structure
+
+The repository contains the following main components:
+
+### 1. Source Code
+- **Location**: `src/main/java/com/dev`
+- **Contents**: Java classes with solutions to different coding problems.
+
+### 2. Build Configuration
+- **File**: `pom.xml`
+- **Description**: Maven build file to manage project dependencies and configuration.
+
+## Topics
+
+The repository covers a wide range of topics including:
+- Java
+- LeetCode Solutions
+- Problem Solving
+- Programming Exercises
+- HackerRank Solutions
+- Interview Preparation
+
+## How to Use
+
+1. **Clone the repository**:
+   ```sh
+   git clone https://github.com/ahmedrafat-SW/problem-solving.git
+