add solutions of code chef in code/online_challenges/

[tbhaxor]

This is a(n):

• [ ] New algorithm
• [ ] Update to an existing algorithm
• [ ] Error
• [x] Proposal to the Repository

Details:

I have created some solution for some codechef problems check this Note : not all problems are working fine, but most of them are working.

I would like you to add some working solution to the problems of codechef

Format To Follow

1. Add Solutions to the directory named after difficulty level
   • Beginner
   • Easy ... and so on
2. Add file with the name like <problem_code>.<ext>

[tbhaxor]

@AdiChat @arnavb

[AdiChat]

This will be great. Go for it 👍

[tbhaxor]

@adichat have u chkd my REPO ?