Stretch Sprint 3 Codewars Katas

### Link to the coursework

https://www.codewars.com/collections/cyf-data-groups-sprint-3-stretch

### Learning Objectives

- [ ] Practice applying concepts related to the sprint's prep material in a kata.
- [ ] Problem solve a new coding challenge.

### Why are we doing this?

Every week, you need to complete all of the katas in the collection. If you have completed the mandatory katas for Data Groups Sprint 3, you can try these stretch katas.

Spend at least 20 minutes per kata.

Find the Collection called "CYF Data Groups | Sprint 3 | Stretch" on [the CodeYourFuture account](https://www.codewars.com/users/CodeYourFuture/authored_collections).

Check your Codewars completion status via the [Codewars Progress Checker](https://codeyourfuture.github.io/Codewars-Progress-Checker/).

### Maximum time in hours

1

### How to get help

Join the #cyf-codewars Slack channel
Read the [CYF Codewars docs](https://docs.codeyourfuture.io/leaders/running-the-course/codewars)
Read [Codewars advice from CYFers](https://docs.codeyourfuture.io/leaders/running-the-course/codewars/codewars-advice-from-cyfers)
Read [Codewars advice from mentors](https://docs.codeyourfuture.io/leaders/running-the-course/codewars/codewars-advice-from-mentors)
Book a mentored coding slot from the available appointments in the [CYF Mentored Coding Slack Canvas](https://codeyourfutur-yov6609.slack.com/docs/T07MCNDRDHV/F07PAGC9022)

### How to submit

Share a link in the form https://codeyourfuture.github.io/Codewars-Progress-Checker/#YOUR_CODEWARS_USERNAME.

You can obtain the link from the browser location bar after submitting your Codewars username on the [Codewars Progress Checker](https://codeyourfuture.github.io/Codewars-Progress-Checker/) page.

### How to review

Once you have completed your kata, look at the other solutions in the solutions view. Consider how many different approaches there are.

Start with the Codewars collection linked in the issue, then use the Codewars Progress Checker to track completion. Complete the Sprint 3 stretch katas and submit the resulting progress-checker link; consult the listed Codewars docs or Slack channel if you need help.

Written by the indexing model from the issue text.