Description

Lucky Number Program added in C++

Reference Issue number #207

Type of change

[x] I have named my files and folder, according to this project's guidelines.
[x] My code follows the style guidelines of this project.
[x] My Pull Request has a descriptive title. (not a vague title like Update index.md)
[x] I have commented on my code, particularly in hard-to-understand areas.
[x] I have created a helpful and easy to understand README.md, with problem description and my name.
[x] I have included a requirements.txt file (if external libraries are required.)
[x] My changes do not produce any warnings.
[x] I have starred this repository.
[x] I have added a working sample/screenshot of the script.
[x] I have checked for trailing spaces in file names and none have them.
[x] I have added (your-name)[your-github-profile-link] in CONTRIBUTORS.md