## Backtracking
  * [Generate Paranthesis](https://github.com/TheAlgorithms/Ruby/blob/master/backtracking/generate_paranthesis.rb)

## Bit Manipulation
  * [Binary And Operator](https://github.com/TheAlgorithms/Ruby/blob/master/bit_manipulation/binary_and_operator.rb)
  * [Binary Count Setbits](https://github.com/TheAlgorithms/Ruby/blob/master/bit_manipulation/binary_count_setbits.rb)
  * [Binary Count Trailing Zeroes](https://github.com/TheAlgorithms/Ruby/blob/master/bit_manipulation/binary_count_trailing_zeroes.rb)
  * [Binary Or Operator](https://github.com/TheAlgorithms/Ruby/blob/master/bit_manipulation/binary_or_operator.rb)
  * [Binary Xor Operator](https://github.com/TheAlgorithms/Ruby/blob/master/bit_manipulation/binary_xor_operator.rb)
  * [Power Of Two](https://github.com/TheAlgorithms/Ruby/blob/master/bit_manipulation/power_of_two.rb)
  * [Single Bit Binary Operations](https://github.com/TheAlgorithms/Ruby/blob/master/bit_manipulation/single_bit_binary_operations.rb)

## Ciphers
  * [Caesar](https://github.com/TheAlgorithms/Ruby/blob/master/ciphers/caesar.rb)
  * [Caesar Test](https://github.com/TheAlgorithms/Ruby/blob/master/ciphers/caesar_test.rb)
  * [Merkle Hellman Cryptosystem](https://github.com/TheAlgorithms/Ruby/blob/master/ciphers/merkle_hellman_cryptosystem.rb)
  * [Rsa](https://github.com/TheAlgorithms/Ruby/blob/master/ciphers/rsa.rb)

## Conversions
  * [Temperature Conversions](https://github.com/TheAlgorithms/Ruby/blob/master/conversions/temperature_conversions.rb)
  * [Weight Conversions](https://github.com/TheAlgorithms/Ruby/blob/master/conversions/weight_conversions.rb)

## Data Structures
  * Arrays
    * [3Sum](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/3sum.rb)
    * [Add Digits](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/add_digits.rb)
    * [Find All Duplicates In An Array](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/find_all_duplicates_in_an_array.rb)
    * [Find The Highest Altitude](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/find_the_highest_altitude.rb)
    * [Fizz Buzz](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/fizz_buzz.rb)
    * [Get Products Of All Other Elements](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/get_products_of_all_other_elements.rb)
    * [Good Pairs](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/good_pairs.rb)
    * [Intersection](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/intersection.rb)
    * [Max 69 Number](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/max_69_number.rb)
    * [Maximum Product Subarray](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/maximum_product_subarray.rb)
    * [Maximum Subarray](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/maximum_subarray.rb)
    * [Next Greater Element](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/next_greater_element.rb)
    * [Remove Elements](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/remove_elements.rb)
    * [Richest Customer Wealth](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/richest_customer_wealth.rb)
    * [Shortest Word Distance](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/shortest_word_distance.rb)
    * [Shuffle Array](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/shuffle_array.rb)
    * [Single Number](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/single_number.rb)
    * [Sort Squares Of An Array](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/sort_squares_of_an_array.rb)
    * [Sorted Arrays Intersection](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/sorted_arrays_intersection.rb)
    * Strings
      * [Almost Palindrome Checker](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/strings/almost_palindrome_checker.rb)
      * [Anagram Checker](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/strings/anagram_checker.rb)
      * [Jewels And Stones](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/strings/jewels_and_stones.rb)
      * [Palindrome](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/strings/palindrome.rb)
      * [Remove Vowels](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/strings/remove_vowels.rb)
    * [Sudoku](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/sudoku.rb)
    * [Two Sum](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/two_sum.rb)
    * [Two Sum Ii](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/arrays/two_sum_ii.rb)
  * Binary Trees
    * [Avl Tree](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/binary_trees/avl_tree.rb)
    * [Avl Tree Test](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/binary_trees/avl_tree_test.rb)
    * [Bst](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/binary_trees/bst.rb)
    * [Bst Test](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/binary_trees/bst_test.rb)
    * [Inorder Traversal](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/binary_trees/inorder_traversal.rb)
    * [Invert](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/binary_trees/invert.rb)
    * [Postorder Traversal](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/binary_trees/postorder_traversal.rb)
    * [Preorder Traversal](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/binary_trees/preorder_traversal.rb)
  * Disjoint Sets
    * [Disjoint Sets](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/disjoint_sets/disjoint_sets.rb)
  * Graphs
    * [Bfs](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/graphs/bfs.rb)
    * [Bfs Test](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/graphs/bfs_test.rb)
    * [Topological Sort](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/graphs/topological_sort.rb)
    * [Topological Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/graphs/topological_sort_test.rb)
    * [Unweighted Graph](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/graphs/unweighted_graph.rb)
    * [Unweighted Graph Test](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/graphs/unweighted_graph_test.rb)
    * [Weighted Graph](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/graphs/weighted_graph.rb)
    * [Weighted Graph Test](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/graphs/weighted_graph_test.rb)
  * Hash Table
    * [Anagram Checker](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/hash_table/anagram_checker.rb)
    * [Arrays Intersection](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/hash_table/arrays_intersection.rb)
    * [Common Characters](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/hash_table/common_characters.rb)
    * [Find All Duplicates In An Array](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/hash_table/find_all_duplicates_in_an_array.rb)
    * [Fizz Buzz](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/hash_table/fizz_buzz.rb)
    * [Good Pairs](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/hash_table/good_pairs.rb)
    * [Isomorphic Strings](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/hash_table/isomorphic_strings.rb)
    * [Richest Customer Wealth](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/hash_table/richest_customer_wealth.rb)
    * [Two Sum](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/hash_table/two_sum.rb)
    * [Uncommon Words](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/hash_table/uncommon_words.rb)
  * Heaps
    * [Max Heap](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/heaps/max_heap.rb)
    * [Max Heap Test](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/heaps/max_heap_test.rb)
  * Linked Lists
    * [Circular Linked List](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/linked_lists/circular_linked_list.rb)
    * [Doubly Linked List](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/linked_lists/doubly_linked_list.rb)
    * [Singly Linked List](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/linked_lists/singly_linked_list.rb)
  * Queues
    * [Circular Queue](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/queues/circular_queue.rb)
    * [Queue](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/queues/queue.rb)
  * Stacks
    * [Stack](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/stacks/stack.rb)
  * Tries
    * [Trie](https://github.com/TheAlgorithms/Ruby/blob/master/data_structures/tries/trie.rb)

## Discrete Mathematics
  * [Euclidean Gcd](https://github.com/TheAlgorithms/Ruby/blob/master/discrete_mathematics/euclidean_gcd.rb)
  * [Exteded Euclidean Algorithm](https://github.com/TheAlgorithms/Ruby/blob/master/discrete_mathematics/exteded_euclidean_algorithm.rb)
  * [Lcm](https://github.com/TheAlgorithms/Ruby/blob/master/discrete_mathematics/lcm.rb)

## Dynamic Programming
  * [Climbing Stairs](https://github.com/TheAlgorithms/Ruby/blob/master/dynamic_programming/climbing_stairs.rb)
  * [Coin Change](https://github.com/TheAlgorithms/Ruby/blob/master/dynamic_programming/coin_change.rb)
  * [Count Sorted Vowel Strings](https://github.com/TheAlgorithms/Ruby/blob/master/dynamic_programming/count_sorted_vowel_strings.rb)
  * [Editdistance](https://github.com/TheAlgorithms/Ruby/blob/master/dynamic_programming/editdistance.rb)
  * [Fibonacci](https://github.com/TheAlgorithms/Ruby/blob/master/dynamic_programming/fibonacci.rb)
  * [House Robber](https://github.com/TheAlgorithms/Ruby/blob/master/dynamic_programming/house_robber.rb)
  * [Knapsack](https://github.com/TheAlgorithms/Ruby/blob/master/dynamic_programming/knapsack.rb)
  * [Ones And Zeros](https://github.com/TheAlgorithms/Ruby/blob/master/dynamic_programming/ones_and_zeros.rb)
  * [Pascal Triangle Ii](https://github.com/TheAlgorithms/Ruby/blob/master/dynamic_programming/pascal_triangle_ii.rb)

## Electronics
  * [Ohms Law](https://github.com/TheAlgorithms/Ruby/blob/master/electronics/ohms_law.rb)

## Maths
  * [3Nplus1](https://github.com/TheAlgorithms/Ruby/blob/master/maths/3nPlus1.rb)
  * [Abs](https://github.com/TheAlgorithms/Ruby/blob/master/maths/abs.rb)
  * [Abs Max](https://github.com/TheAlgorithms/Ruby/blob/master/maths/abs_max.rb)
  * [Abs Min](https://github.com/TheAlgorithms/Ruby/blob/master/maths/abs_min.rb)
  * [Abs Test](https://github.com/TheAlgorithms/Ruby/blob/master/maths/abs_test.rb)
  * [Add](https://github.com/TheAlgorithms/Ruby/blob/master/maths/add.rb)
  * [Add Digits](https://github.com/TheAlgorithms/Ruby/blob/master/maths/add_digits.rb)
  * [Aliquot Sum](https://github.com/TheAlgorithms/Ruby/blob/master/maths/aliquot_sum.rb)
  * [Aliquot Sum Test](https://github.com/TheAlgorithms/Ruby/blob/master/maths/aliquot_sum_test.rb)
  * [Armstrong Number](https://github.com/TheAlgorithms/Ruby/blob/master/maths/armstrong_number.rb)
  * [Average Mean](https://github.com/TheAlgorithms/Ruby/blob/master/maths/average_mean.rb)
  * [Average Median](https://github.com/TheAlgorithms/Ruby/blob/master/maths/average_median.rb)
  * [Binary To Decimal](https://github.com/TheAlgorithms/Ruby/blob/master/maths/binary_to_decimal.rb)
  * [Ceil](https://github.com/TheAlgorithms/Ruby/blob/master/maths/ceil.rb)
  * [Ceil Test](https://github.com/TheAlgorithms/Ruby/blob/master/maths/ceil_test.rb)
  * [Count Sorted Vowel Strings](https://github.com/TheAlgorithms/Ruby/blob/master/maths/count_sorted_vowel_strings.rb)
  * [Decimal To Binary](https://github.com/TheAlgorithms/Ruby/blob/master/maths/decimal_to_binary.rb)
  * [Factorial](https://github.com/TheAlgorithms/Ruby/blob/master/maths/factorial.rb)
  * [Factorial Non Recursive Non Iterative](https://github.com/TheAlgorithms/Ruby/blob/master/maths/factorial_non_recursive_non_iterative.rb)
  * [Fibonacci](https://github.com/TheAlgorithms/Ruby/blob/master/maths/fibonacci.rb)
  * [Find Max](https://github.com/TheAlgorithms/Ruby/blob/master/maths/find_max.rb)
  * [Find Min](https://github.com/TheAlgorithms/Ruby/blob/master/maths/find_min.rb)
  * [Lucas Series](https://github.com/TheAlgorithms/Ruby/blob/master/maths/lucas_series.rb)
  * [Number Of Digits](https://github.com/TheAlgorithms/Ruby/blob/master/maths/number_of_digits.rb)
  * [Pascal Triangle Ii](https://github.com/TheAlgorithms/Ruby/blob/master/maths/pascal_triangle_ii.rb)
  * [Power Of Two](https://github.com/TheAlgorithms/Ruby/blob/master/maths/power_of_two.rb)
  * [Prime Number](https://github.com/TheAlgorithms/Ruby/blob/master/maths/prime_number.rb)
  * [Roman To Integer](https://github.com/TheAlgorithms/Ruby/blob/master/maths/roman_to_integer.rb)
  * [Square Root](https://github.com/TheAlgorithms/Ruby/blob/master/maths/square_root.rb)
  * [Square Root Test](https://github.com/TheAlgorithms/Ruby/blob/master/maths/square_root_test.rb)
  * [Sum Of Digits](https://github.com/TheAlgorithms/Ruby/blob/master/maths/sum_of_digits.rb)

## Other
  * [Fisher Yates](https://github.com/TheAlgorithms/Ruby/blob/master/other/fisher_yates.rb)
  * [Number Of Days](https://github.com/TheAlgorithms/Ruby/blob/master/other/number_of_days.rb)

## Project Euler
  * Problem 001
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_001/sol1.rb)
  * Problem 002
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_002/sol1.rb)
  * Problem 003
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_003/sol1.rb)
    * [Sol2](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_003/sol2.rb)
  * Problem 004
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_004/sol1.rb)
    * [Sol2](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_004/sol2.rb)
  * Problem 005
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_005/sol1.rb)
  * Problem 006
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_006/sol1.rb)
  * Problem 007
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_007/sol1.rb)
  * Problem 010
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_010/sol1.rb)
  * Problem 014
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_014/sol1.rb)
  * Problem 020
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_020/sol1.rb)
  * Problem 021
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_021/sol1.rb)
  * Problem 022
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_022/sol1.rb)
  * Problem 025
    * [Sol1](https://github.com/TheAlgorithms/Ruby/blob/master/project_euler/problem_025/sol1.rb)

## Searches
  * [Binary Search](https://github.com/TheAlgorithms/Ruby/blob/master/searches/binary_search.rb)
  * [Depth First Search](https://github.com/TheAlgorithms/Ruby/blob/master/searches/depth_first_search.rb)
  * [Double Linear Search](https://github.com/TheAlgorithms/Ruby/blob/master/searches/double_linear_search.rb)
  * [Fibonacci Search](https://github.com/TheAlgorithms/Ruby/blob/master/searches/fibonacci_search.rb)
  * [Jump Search](https://github.com/TheAlgorithms/Ruby/blob/master/searches/jump_search.rb)
  * [Linear Search](https://github.com/TheAlgorithms/Ruby/blob/master/searches/linear_search.rb)
  * [Number Of Islands](https://github.com/TheAlgorithms/Ruby/blob/master/searches/number_of_islands.rb)
  * [Recursive Double Linear Search](https://github.com/TheAlgorithms/Ruby/blob/master/searches/recursive_double_linear_search.rb)
  * [Recursive Linear Search](https://github.com/TheAlgorithms/Ruby/blob/master/searches/recursive_linear_search.rb)
  * [Ternary Search](https://github.com/TheAlgorithms/Ruby/blob/master/searches/ternary_search.rb)

## Sorting
  * [Bead Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/bead_sort.rb)
  * [Bead Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/bead_sort_test.rb)
  * [Binary Insertion Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/binary_insertion_sort.rb)
  * [Binary Insertion Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/binary_insertion_sort_test.rb)
  * [Bogo Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/bogo_sort.rb)
  * [Bogo Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/bogo_sort_test.rb)
  * [Bubble Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/bubble_sort.rb)
  * [Bubble Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/bubble_sort_test.rb)
  * [Bucket Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/bucket_sort.rb)
  * [Bucket Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/bucket_sort_test.rb)
  * [Cocktail Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/cocktail_sort.rb)
  * [Cocktail Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/cocktail_sort_test.rb)
  * [Comb Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/comb_sort.rb)
  * [Comb Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/comb_sort_test.rb)
  * [Counting Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/counting_sort.rb)
  * [Counting Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/counting_sort_test.rb)
  * [Heap Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/heap_sort.rb)
  * [Heap Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/heap_sort_test.rb)
  * [Insertion Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/insertion_sort.rb)
  * [Insertion Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/insertion_sort_test.rb)
  * [Merge Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/merge_sort.rb)
  * [Merge Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/merge_sort_test.rb)
  * [Pancake Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/pancake_sort.rb)
  * [Pancake Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/pancake_sort_test.rb)
  * [Quicksort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/quicksort.rb)
  * [Quicksort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/quicksort_test.rb)
  * [Radix Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/radix_sort.rb)
  * [Radix Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/radix_sort_test.rb)
  * [Selection Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/selection_sort.rb)
  * [Selection Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/selection_sort_test.rb)
  * [Shell Sort](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/shell_sort.rb)
  * [Shell Sort Test](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/shell_sort_test.rb)
  * [Sort Color](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/sort_color.rb)
  * [Sort Tests](https://github.com/TheAlgorithms/Ruby/blob/master/sorting/sort_tests.rb)

## Strings
  * [Boyer Moore Horspool Search](https://github.com/TheAlgorithms/Ruby/blob/master/strings/boyer_moore_horspool_search.rb)
  * [Boyer Moore Horspool Search Test](https://github.com/TheAlgorithms/Ruby/blob/master/strings/boyer_moore_horspool_search_test.rb)
  * [Max K Most Frequent Words](https://github.com/TheAlgorithms/Ruby/blob/master/strings/max_k_most_frequent_words.rb)
  * [Max K Most Frequent Words Test](https://github.com/TheAlgorithms/Ruby/blob/master/strings/max_k_most_frequent_words_test.rb)