Merge pull request #787 from fartem/468_Validate_IP_Address

2024-12-02 v. 7.1.6: added "468. Validate IP Address"

Author: fartem

.rubocop.yml

@@ -56,3 +56,6 @@ Lint/DuplicateBranch:
   Enabled: false
 Lint/UselessSetterCall:
   Enabled: false
+
+Layout/LineLength:
+  Enabled: false

README.md

@@ -581,3 +581,4 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/).
 | 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)                   |
+| 468. Validate IP Address                                        | [Link](https://leetcode.com/problems/validate-ip-address/)                                        | [Link](./lib/medium/468_validate_ip_address.rb)                                        | [Link](./test/medium/test_468_validate_ip_address.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 = '7.1.5'
+  s.version = '7.1.6'
   s.license = 'MIT'
   s.files = ::Dir['lib/**/*.rb'] + %w[README.md]
   s.executable = 'leetcode-ruby'

lib/easy/938_range_sum_of_bst.rb

@@ -8,9 +8,7 @@
 def range_sum_bst(root, low, high)
   return 0 if root.nil?
 
-  if root.val >= low && root.val <= high
-    return root.val + range_sum_bst(root.left, low, high) + range_sum_bst(root.right, low, high)
-  end
+  return root.val + range_sum_bst(root.left, low, high) + range_sum_bst(root.right, low, high) if root.val >= low && root.val <= high
 
   return range_sum_bst(root.right, low, high) if root.val < low
 

lib/medium/468_validate_ip_address.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+# https://leetcode.com/problems/validate-ip-address/
+# @param {String} query_ip
+# @return {String}
+def valid_ip_address(query_ip) = ipv4(query_ip) || ipv6(query_ip) || 'Neither'
+
+private
+
+def ipv4(ip) = ip =~ /\A((1[0-9]{2}|25[0-5]|2[0-4][0-9]|[1-9][0-9]|[0-9])\.){3}(1[0-9]{2}|25[0-5]|2[0-4][0-9]|[1-9][0-9]|[0-9])\Z/ ? 'IPv4' : nil
+
+def ipv6(ip) = ip.upcase =~ /\A([0-9A-F]{1,4}:){7}([0-9A-F]{1,4})\Z/ ? 'IPv6' : nil

test/medium/test_468_validate_ip_address.rb

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+require_relative '../test_helper'
+require_relative '../../lib/medium/468_validate_ip_address'
+require 'minitest/autorun'
+
+class ValidateIPAddressTest < ::Minitest::Test
+  def test_default_one
+    assert_equal(
+      'IPv4',
+      valid_ip_address(
+        '172.16.254.1'
+      )
+    )
+  end
+
+  def test_default_two
+    assert_equal(
+      'IPv6',
+      valid_ip_address(
+        '2001:0db8:85a3:0:0:8A2E:0370:7334'
+      )
+    )
+  end
+
+  def test_default_three
+    assert_equal(
+      'Neither',
+      valid_ip_address(
+        '256.256.256.256'
+      )
+    )
+  end
+end