Merge pull request #786 from fartem/462_Minimum_Moves_to_Equal_Array_Elements_II

2024-11-29 v. 7.1.5: added "462. Minimum Moves to Equal Array Elements II"

Author: fartem

README.md

@@ -580,3 +580,4 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/).
 | 451. Sort Characters By Frequency                               | [Link](https://leetcode.com/problems/sort-characters-by-frequency/)                               | [Link](./lib/medium/451_sort_characters_by_frequency.rb)                               | [Link](./test/medium/test_451_sort_characters_by_frequency.rb)                               |
 | 453. Minimum Moves to Equal Array Elements                      | [Link](https://leetcode.com/problems/minimum-moves-to-equal-array-elements/)                      | [Link](./lib/medium/453_minimum_moves_to_equal_array_elements.rb)                      | [Link](./test/medium/test_453_minimum_moves_to_equal_array_elements.rb)                      |
 | 456. 132 Pattern                                                | [Link](https://leetcode.com/problems/132-pattern/)                                                | [Link](./lib/medium/456_132_pattern.rb)                                                | [Link](./test/medium/test_456_132_pattern.rb)                                                |
+| 462. Minimum Moves to Equal Array Elements II                   | [Link](https://leetcode.com/problems/minimum-moves-to-equal-array-elements-ii/)                   | [Link](./lib/medium/462_minimum_moves_to_equal_array_elements_ii.rb)                   | [Link](./test/medium/test_462_minimum_moves_to_equal_array_elements_ii.rb)                   |

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 = '7.1.4'
+  s.version = '7.1.5'
   s.license = 'MIT'
   s.files = ::Dir['lib/**/*.rb'] + %w[README.md]
   s.executable = 'leetcode-ruby'

lib/medium/462_minimum_moves_to_equal_array_elements_ii.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+# https://leetcode.com/problems/minimum-moves-to-equal-array-elements-ii/
+# @param {Integer[]} nums
+# @return {Integer}
+def min_moves2(nums)
+  nums.sort!
+  n = nums.size
+  m = (n % 2).zero? ? (nums[n / 2] + nums[n / 2 - 1]) / 2 : nums[n / 2]
+
+  nums.sum { |num| (m - num).abs }
+end

test/medium/test_462_minimum_moves_to_equal_array_elements_ii.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+require_relative '../test_helper'
+require_relative '../../lib/medium/462_minimum_moves_to_equal_array_elements_ii'
+require 'minitest/autorun'
+
+class MinimumMovesToEqualArrayElementsIITest < ::Minitest::Test
+  def test_default_one = assert_equal(2, min_moves2([1, 2, 3]))
+
+  def test_default_two = assert_equal(16, min_moves2([1, 10, 2, 9]))
+end