Bubble sort revised

Difficulty:
Easy

Instructions:
Implement in place sorting algorithm with a worst case time complexity of O(n2)

Problem and Solution:

Bubble Sort

Difficulty:
Easy

Instructions:
Implement in place sorting algorithm with a worst case time complexity of O(n2)

Problem and Solution:

Selection Sort

Difficulty:
Easy

Instructions:
Implement in place sorting algorithm with a worst case time complexity of O(n2)

Problem and Solution:

Implement Array#interleave

Difficulty:
Easy

Tags:
arrays

Instructions:

Implement an Array method to interleave an array with a dynamic number of arguments or an array.

Problem and Solution:

Counting Elements in Array

Difficulty:
Easy

Tags:
arrays

Instructions:

Count elements in an Array by returning a hash with keys of the elements and values of the amount of times they occur.

Hidden Code:
There is hidden code with assertions that is also being run to test out your code.

Problem and Solution:

Picking Lottery Numbers

Difficulty:
Easy

Tags:
arrays

Instructions:
Return a sample of five random numbers from an array. They should be unique week to week.

Problem and Solution: