Add more solutions

[danhenriquesc]

Add more solutions of Hackerrank challenges.

[talbshoam]

Hey @danhenriquesc,
Are solutions accepted in languages other than c++, python and php?

[sbz]

Hey @danhenriquesc,

I added the #20 for Python3 implementation of Time Conversion for Hacktoberfest

[danhenriquesc]

Hey @danhenriquesc,
Are solutions accepted in languages other than c++, python and php?

Yes! Just update the Readme

[danhenriquesc]

Hey @danhenriquesc,

I added the #20 for Python3 implementation ofTime Conversion for Hacktoberfest

I just reviewed and it's great!
Thank you so much! Your PR was merged into master!

I just have created new issues to make this repo more easy to contribute and more complete for who needs it. If you wanna contribute more, there is great issues to solve! 😄

[hiiakku]

Hey @danhenriquesc

I added the #38 for Python2 implementation of a DP problem - Fibonacci Modified for Hacktoberfest

[sbz]

Hey @danhenriquesc. Muito obrigado. Mais dois 👍

I added the #44 for Python3 for Left Rotation for Hacktoberfest
I added the #45 for Python3 for Is This a Binary Search Tree? for Hacktoberfest