From 47d4a6d6311fec466fec6608458d38ad0a5f3679 Mon Sep 17 00:00:00 2001
From: fartem <jaman.smlnsk@gmail.com>
Date: Tue, 14 May 2024 07:45:33 +0300
Subject: [PATCH] 2024-05-13 v. 5.6.7: added "2404. Most Frequent Even Element"

---
 README.md                                     |  1 +
 leetcode-ruby.gemspec                         |  2 +-
 lib/easy/2404_most_frequent_even_element.rb   | 22 +++++++++++++++++++
 .../test_2404_most_frequent_even_element.rb   | 13 +++++++++++
 4 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 lib/easy/2404_most_frequent_even_element.rb
 create mode 100644 test/easy/test_2404_most_frequent_even_element.rb

diff --git a/README.md b/README.md
index a37559ba..a62a461a 100644
--- a/README.md
+++ b/README.md
@@ -427,3 +427,4 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/).
 | 2389. Longest Subsequence With Limited Sum                         | [Link](https://leetcode.com/problems/longest-subsequence-with-limited-sum/)                         | [Link](./lib/easy/2389_longest_subsequence_with_limited_sum.rb)                         |
 | 2395. Find Subarrays With Equal Sum                                | [Link](https://leetcode.com/problems/find-subarrays-with-equal-sum/)                                | [Link](./lib/easy/2395_find_subarrays_with_equal_sum.rb)                                |
 | 2399. Check Distances Between Same Letters                         | [Link](https://leetcode.com/problems/check-distances-between-same-letters/)                         | [Link](./lib/easy/2399_check_distances_between_same_letters.rb)                         |
+| 2404. Most Frequent Even Element                                   | [Link](https://leetcode.com/problems/most-frequent-even-element/)                                   | [Link](./lib/easy/2404_most_frequent_even_element.rb)                                   |
diff --git a/leetcode-ruby.gemspec b/leetcode-ruby.gemspec
index d6e0077f..cbc369fd 100644
--- a/leetcode-ruby.gemspec
+++ b/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 = '5.6.6'
+  s.version = '5.6.7'
   s.license = 'MIT'
   s.files = ::Dir['lib/**/*.rb'] + %w[bin/leetcode-ruby README.md LICENSE]
   s.executable = 'leetcode-ruby'
diff --git a/lib/easy/2404_most_frequent_even_element.rb b/lib/easy/2404_most_frequent_even_element.rb
new file mode 100644
index 00000000..13650b2b
--- /dev/null
+++ b/lib/easy/2404_most_frequent_even_element.rb
@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+# https://leetcode.com/problems/most-frequent-even-element/
+# @param {Integer[]} nums
+# @return {Integer}
+def most_frequent_even(nums)
+  map = {}
+  max = 0
+  nums.each do |num|
+    next unless num.even?
+
+    map[num] = map.fetch(num, 0) + 1
+    max = [max, map[num]].max
+  end
+
+  return -1 if max.zero?
+
+  result = 1_000_000_000_000_000
+  map.each { |key, value| result = [result, key].min if value == max }
+
+  result
+end
diff --git a/test/easy/test_2404_most_frequent_even_element.rb b/test/easy/test_2404_most_frequent_even_element.rb
new file mode 100644
index 00000000..375f47d4
--- /dev/null
+++ b/test/easy/test_2404_most_frequent_even_element.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+require_relative '../test_helper'
+require_relative '../../lib/easy/2404_most_frequent_even_element'
+require 'minitest/autorun'
+
+class MostFrequentEvenElementTest < ::Minitest::Test
+  def test_default
+    assert_equal(2, most_frequent_even([0, 1, 2, 2, 4, 4, 1]))
+    assert_equal(4, most_frequent_even([4, 4, 4, 9, 2, 4]))
+    assert_equal(-1, most_frequent_even([29, 47, 21, 41, 13, 37, 25, 7]))
+  end
+end