Updating the repository with some solutions.

[CodersAcademy006]

Hi. I have few solutions of the Leetcode problem statements. I want to upload 'SQL 50' Solutions and many more..
It would be great if you allow me to contribute to the project and help people with my Solutions.
Thank You.

[welcome]

Thanks for helping us improve and opening your first issue here! Don't forget to give us a 🌟 to support us.

While you're waiting, I just wanted to make sure you've had a chance to look at our Readme and Pull Request Guidelines.