Updated Programiz online compiler URL in README.md to reflect main.cpp changes for the Live Demo.

- Adjusted the URL to match the latest version of main.cpp.
- Ensured consistency between code implementation and live demo.
- Highlighted improvements like input validation and error logging for better user experience.

Author: LuCamachoJr

index.html

@@ -122,7 +122,7 @@ <h2>How to Run the Code</h2>
 
         <h2>Run Online</h2>
         <p>You can test the code directly in your browser using the Programiz online compiler:</p>
-        <a href="https://www.programiz.com/online-compiler/11UkcadNsRTm8" class="button-link" target="_blank">Run on Programiz</a>
+        <a href="https://www.programiz.com/online-compiler/64XcIYv3AwDYf" class="button-link" target="_blank">Run on Programiz</a>
     </div>
 </body>
 </html>