In this challenge, you are tasked with implementing a function that takes in a string and then duplicates the characters twice within the string.

In this challenge, you are tasked with implementing a function that returns whether or not a year is a leap year.

In this challenge, you are tasked with finding the smallest possible difference between 2 int slices.

In thie challenge, you are tasked with checking to see if a number is an Armstrong number in Go!

In this challenge, you are going to be implementing a function that checks to see if a set is a sub-set.

In this challenge, you will be tasked with efficiently counting the frequencies of words in Go!

In this challenge, you will be implementing the basic functionality of a singly linked list in Go!

In this challenge, you are going to be building a function that takes in two string values and checks to see if they are permutations of each other!

In this challenge, you will be implementing some of the core functionality of the Queue data structure in Go!