Make sure to add the libraries that these functions belong in.

Function Name	Description
std::sort	Sorts an array/vector from least to greatest
std::reverse	Reverses an array/vector
sqrt	Returns the square root of a number
pow	Returns the value of an exponent
round	Rounds a floating number/double to the nearest integer
ceil	Rounds up a number
floor	Rounds down a number
rand	Returns a random integer