This is a project where I study algorithms in ruby programming language practicing TDD

The challenges descriptions are in the test files

Strings

• Count similar characters

• CPF validation

• First letter uppercase

• Fizz Buzz print

• Palindrome String

• Reverse a string

• Uppercase based on array

Data structures

• Single linked list

• Doubly linked list

• Circular doubly linked list

Needs to be added

• Print tree

• Binary search

• bubble sort

• quick sort

• Fibonacci

• [ ]