2023-10-09 v. 3.2.3: added "1523. Count Odd Numbers in an Interval Range"

Author: fartem

README.md

@@ -269,3 +269,4 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/).
 | 1507. Reformat Date                                                | [Link](https://leetcode.com/problems/reformat-date/)                                                | [Link](./lib/easy/1507_reformat_date.rb)                                                |
 | 1512. Number of Good Pairs                                         | [Link](https://leetcode.com/problems/number-of-good-pairs/)                                         | [Link](./lib/easy/1512_number_of_good_pairs.rb)                                         |
 | 1518. Water Bottle                                                 | [Link](https://leetcode.com/problems/water-bottles/)                                                | [Link](./lib/easy/1518_water_bottles.rb)                                                |
+| 1523. Count Odd Numbers in an Interval Range                       | [Link](https://leetcode.com/problems/count-odd-numbers-in-an-interval-range/)                       | [Link](./lib/easy/1523_count_odd_numbers_in_an_interval_range.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 = '3.2.2'
+  s.version = '3.2.3'
   s.license = 'MIT'
   s.files = ::Dir['lib/**/*.rb'] + %w[bin/leetcode-ruby README.md LICENSE]
   s.executable = 'leetcode-ruby'

lib/easy/1523_count_odd_numbers_in_an_interval_range.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+# https://leetcode.com/problems/count-odd-numbers-in-an-interval-range/
+# @param {Integer} low
+# @param {Integer} high
+# @return {Integer}
+def count_odds(low, high)
+  additional = low.even? && high.even? ? 0 : 1
+
+  (high - low) / 2 + additional
+end

test/easy/test_1523_count_odd_numbers_in_an_interval_range.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+require_relative '../test_helper'
+require_relative '../../lib/easy/1523_count_odd_numbers_in_an_interval_range'
+require 'minitest/autorun'
+
+class CountOddNumbersInAnIntervalRangeTest < ::Minitest::Test
+  def test_default
+    assert_equal(3, count_odds(3, 7))
+    assert_equal(1, count_odds(8, 10))
+  end
+end