added jumping-on-clouds-problem: Hackerank

[Bhavika-Gianey]

Related Issue

• Info about the related issue

Closes: #265

Describe the changes you've made

Give a clear description what modifications you have made
Added solution to Jumping On Clouds: Revisited Problem of Hackerrank in Cpp
Problem Link: https://www.hackerrank.com/challenges/jumping-on-the-clouds-revisited/problem

Mention any unusual behaviour of your code (Write NA if not)

Any unusual behaviour of your code
NA

Checklist:

(To mark, write x inside the square brackets like this: [x])

• My code follows the guidelines of this project.
• I have performed a self-review of my own code.
• I have commented my code, particularly whereever it was hard to understand.
• My changes generate no new warnings.

Additional Info (optional)

Any additional information you want to give
Kindly merge my PR under HackoberFest2021

[kanak22]

Add comments in the function part ;)