Project Euler has about 700 problems, but the current repository hosts solutions for only about 60-70 problems.
I'm willing to work on the issue and also if someone wants to help they can join in.
We can create guidelines on how many minimum solutions a PR should have to prevent spammy PRs with just one or two easy solutions. (open to discussion)

You may use this guide to make quality contributions at Hacktoberfest 2020: Hacktoberfest 2020 guide

To begin contributing, you shall get a quick overview of how Cosmos is used today. Cosmos is one of the most extensive code database and is used as:

• A datastore for various projects (such as [Quark](https://github.com/OpenGenus/

Added a cpp file for Floyd Algorithm for cycle detection Description of Change

Checklist

• Added de

Add quickselect algorithm. Quickselect is a selection algorithm to find the kth smallest element in an unordered list.

Happy Number

A happy number is a number which eventually reaches 1 when replaced by the sum of the square of each digit. Whereas if during this process any number gets repeated, the cycle will run infinitely and such numbers are called unhappy numbers.

Welcome to JavaScript community

Describe your change:

• Add an algorithm?
• Fix a bug or typo in an existing algorit

🚀 Feature Proposal

Adding leading zero in the question number will be an awesome feature for file explorer to sort files by the name.