2024-11-27 v. 7.1.2: added "451. Sort Characters By Frequency"

Author: fartem

lib/medium/451_sort_characters_by_frequency.rb

@@ -3,7 +3,7 @@
 # https://leetcode.com/problems/sort-characters-by-frequency/
 # @param {String} s
 # @return {String}
-def frequency_sort(s)
+def frequency_sort451(s)
   arr = s.split('').sort
   h = ::Hash.new { |v, k| v[k] = '' }
   p1 = 0

test/medium/test_451_sort_characters_by_frequency.rb

@@ -8,7 +8,7 @@ class SortCharactersByFrequencyTest < ::Minitest::Test
   def test_default_one
     assert_equal(
       'eert',
-      frequency_sort(
+      frequency_sort451(
         'tree'
       )
     )
@@ -17,7 +17,7 @@ def test_default_one
   def test_default_two
     assert_equal(
       'aaaccc',
-      frequency_sort(
+      frequency_sort451(
         'cccaaa'
       )
     )
@@ -26,7 +26,7 @@ def test_default_two
   def test_default_three
     assert_equal(
       'bbAa',
-      frequency_sort(
+      frequency_sort451(
         'bbAa'
       )
     )