Merge pull request #493 from fartem/819_Most_Common_Word-update-2

2024-02-05 v. 4.3.7: added "819. Most Common Word"

Author: fartem

leetcode-ruby.gemspec

@@ -5,7 +5,7 @@ require 'English'
 ::Gem::Specification.new do |s|
   s.required_ruby_version = '>= 3.0'
   s.name = 'leetcode-ruby'
-  s.version = '4.3.6'
+  s.version = '4.3.7'
   s.license = 'MIT'
   s.files = ::Dir['lib/**/*.rb'] + %w[bin/leetcode-ruby README.md LICENSE]
   s.executable = 'leetcode-ruby'

lib/easy/819_most_common_word.rb

@@ -10,9 +10,7 @@ def most_common_word(paragraph, banned)
   word = []
   counter = 0
   words_with_count = {}
-  in_lower_case = paragraph.downcase
-  (0...paragraph.length).each do |i|
-    c = in_lower_case[i]
+  paragraph.downcase.each_char do |c|
     if is_letter?(c)
       word << c
     else