Just make new PR with an algorithm, data structures, ciphers or puzzle implementation. Language doesn't matter. Follow the structure: https://github.com/ZoranPandovski/al-go-rithms#contribution

If the implementation already exists follow the code structure and create new dir with e.g your name, 1, 2, or use your imagination 💥 🥇

Could we add some data validation functions such as,
make upper case,
make lower case,
get random double,
get random int?

👽 What is required?

The algorithm is here : check-binary-tree-subtree-another-binary-tree

• Follow the ESLint rules strictly
• Follow the filename and folder structure strictly
• Since the Contribution Guide is not ready yet, go

🚀 Feature

Given an array that contains all elements occurring 3 times, but one occurs only once. Find that unique element.
Input : arr[] = {6, 2, 5, 2, 2, 6, 6}

Output: 5

Have you read the [Contributing Guidelines on Pull Requests]

Yes

Motivation

I want to solve this issue as a part of CH20.

Pitch

We can use bitwise AND to find the unique element in O(n)