Arrays

1. Array Sum a. Write a method that takes an array of numbers and returns the sum of all the numbers in the array.
2. Find Maximum a. Write a method that finds and returns the maximum value in an array of numbers.
3. Remove Duplicates a. Write a method that takes an array and removes any duplicate elements, returning a new array with unique elements.
4. Reverse Array a. Write a method that reverses an array in-place, without using built-in reverse methods.
5. Array Rotation a. Write a method that rotates an array to the right by a specified number of positions.

Hashes

1. Word Frequency Counter a. Write a method that takes a string and returns a hash where the keys are words in the string and the values are the frequencies of those words.
2. Hash Merge a. Write a method that takes two hashes and merges them into a single hash, combining values for common keys.
3. Hash Sorting a. Write a method that takes a hash and returns a new hash with the keys sorted alphabetically.
4. Hash Inversion a. Write a method that inverts a hash, swapping keys and values.
5. Hash Lookup a. Write a method that takes a hash and a key, and returns the value associated with that key. If the key is not found, return a default value.# Ticketing

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