solved previous days pending questions.

[Utkarshmalik]

Please make sure you have done the following:

• [ y] Created a folder with the name of language you code inside /Day<n>/ directory (Where n is for nth day)
• [y] Added your Codes
• [y] Tested your codes
• [y] Added credits (author and date) at the top of the code
• [y] Updated README.md
• [y] Added yourself as a contributor using all-conributors-cli

[MadhavBahl]

Please correct all README.md