2025-01-16 v. 8.1.2.1: small refactoring

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 = '8.1.2'
+  s.version = '8.1.2.1'
   s.license = 'MIT'
   s.files = ::Dir['lib/**/*.rb'] + %w[README.md]
   s.executable = 'leetcode-ruby'

lib/easy/933_number_of_recent_calls.rb

@@ -11,7 +11,7 @@ def initialize
   # @return {Integer}
   def ping(t)
     @requests << t
-    @requests.delete_at(0) while @requests.first < t - 3000
+    @requests.shift while @requests.first < t - 3000
 
     @requests.length
   end

lib/easy/993_cousins_in_binary_tree.rb

@@ -11,7 +11,8 @@ def is_cousins(root, x, y)
   queue << nil
   found = 0
   until queue.empty?
-    curr = queue.delete_at(0)
+    curr = queue.shift
+
     if curr.nil?
       queue << nil unless queue.empty?
       found = 0

lib/medium/402_remove_k_digits.rb

@@ -28,7 +28,7 @@ def remove_kdigits(num, k)
   result << stack.pop until stack.empty?
 
   result.reverse!
-  result.delete_at(0) while result.size > 1 && result[0] == '0'
+  result.shift while result.size > 1 && result[0] == '0'
 
   result.join
 end

lib/medium/429_n_ary_tree_level_order_traversal.rb

@@ -13,7 +13,7 @@ def level_order429(root)
     size = queue.size
 
     (0...size).each do |_|
-      node = queue.delete_at(0)
+      node = queue.shift
       level << node.val
 
       node.children&.each { |child| queue << child }

lib/medium/515_find_largest_value_in_each_tree_row.rb

@@ -12,7 +12,7 @@ def largest_values(root)
     size = nodes.size
     max = -::Float::INFINITY
     (0...size).each do |_|
-      node = nodes.delete_at(0)
+      node = nodes.shift
 
       max = node.val if node.val > max
 

lib/medium/623_add_one_row_to_tree.rb

@@ -17,7 +17,7 @@ def add_one_row(root, val, depth)
 
     if (level + 1) == depth
       until size.zero?
-        node = nodes.delete_at(0)
+        node = nodes.shift
         left = node.left
         right = node.right
         node.left = ::TreeNode.new(val, left, nil)
@@ -27,7 +27,7 @@ def add_one_row(root, val, depth)
       end
     else
       until size.zero?
-        node = nodes.delete_at(0)
+        node = nodes.shift
         nodes << node.left if node.left
         nodes << node.right if node.right
 

lib/medium/662_maximum_width_of_binary_tree.rb

@@ -11,7 +11,7 @@ def width_of_binary_tree(root)
     min = +1.0 / 0.0
     max = 0
     (0...size).each do |_i|
-      pair = nodes.delete_at(0)
+      pair = nodes.shift
       min = [min, pair.value].min
       max = [max, pair.value].max