2025-01-14 v. 8.0.5: added "1770. Maximum Score from Performing Multiplication Operations"

Author: fartem

README.md

@@ -651,26 +651,27 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/).
 
 ### Hard
 
-| Name                                          | Link to LeetCode                                                                 | Link to solution                                                   | Link to tests                                                            |
-| --------------------------------------------- | -------------------------------------------------------------------------------- | ------------------------------------------------------------------ | ------------------------------------------------------------------------ |
-| 4. Median of Two Sorted Arrays                | [Link](https://leetcode.com/problems/median-of-two-sorted-arrays/)               | [Link](./lib/hard/4_median_of_two_sorted_arrays.rb)                | [Link](./test/hard/test_4_median_of_two_sorted_arrays.rb)                |
-| 10. Regular Expression Matching               | [Link](https://leetcode.com/problems/regular-expression-matching/)               | [Link](./lib/hard/10_regular_expression_matching.rb)               | [Link](./test/hard/test_10_regular_expression_matching.rb)               |
-| 23. Merge k Sorted Lists                      | [Link](https://leetcode.com/problems/merge-k-sorted-lists/)                      | [Link](./lib/hard/23_merge_k_sorted_lists.rb)                      | [Link](./test/hard/test_23_merge_k_sorted_lists.rb)                      |
-| 25. Reverse Nodes in k-Group                  | [Link](https://leetcode.com/problems/reverse-nodes-in-k-group/)                  | [Link](./lib/hard/25_reverse_nodes_in_k_group.rb)                  | [Link](./test/hard/test_25_reverse_nodes_in_k_group.rb)                  |
-| 30. Substring with Concatenation of All Words | [Link](https://leetcode.com/problems/substring-with-concatenation-of-all-words/) | [Link](./lib/hard/30_substring_with_concatenation_of_all_words.rb) | [Link](./test/hard/test_30_substring_with_concatenation_of_all_words.rb) |
-| 32. Longest Valid Parentheses                 | [Link](https://leetcode.com/problems/longest-valid-parentheses/)                 | [Link](./lib/hard/32_longest_valid_parentheses.rb)                 | [Link](./test/hard/test_32_longest_valid_parentheses.rb)                 |
-| 41. First Missing Positive                    | [Link](https://leetcode.com/problems/first-missing-positive/)                    | [Link](./lib/hard/41_first_missing_positive.rb)                    | [Link](./test/hard/test_41_first_missing_positive.rb)                    |
-| 115. Distinct Subsequences                    | [Link](https://leetcode.com/problems/distinct-subsequences/)                     | [Link](./lib/hard/115_distinct_subsequences.rb)                    | [Link](./test/hard/test_115_distinct_subsequences.rb)                    |
-| 126. Word Ladder II                           | [Link](https://leetcode.com/problems/word-ladder-ii/)                            | [Link](./lib/hard/126_word_ladder_ii.rb)                           | [Link](./test/hard/test_126_word_ladder_ii.rb)                           |
-| 233. Number of Digit One                      | [Link](https://leetcode.com/problems/number-of-digit-one/)                       | [Link](./lib/hard/233_number_of_digit_one.rb)                      | [Link](./test/hard/test_233_number_of_digit_one.rb)                      |
-| 239. Sliding Window Maximum                   | [Link](https://leetcode.com/problems/sliding-window-maximum/)                    | [Link](./lib/hard/239_sliding_window_maximum.rb)                   | [Link](./test/hard/test_239_sliding_window_maximum.rb)                   |
-| 297. Serialize and Deserialize Binary Tree    | [Link](https://leetcode.com/problems/serialize-and-deserialize-binary-tree/)     | [Link](./lib/hard/297_serialize_and_deserialize_binary_tree.rb)    | [Link](./test/hard/test_297_serialize_and_deserialize_binary_tree.rb)    |
-| 336. Palindrome Pairs                         | [Link](https://leetcode.com/problems/palindrome-pairs/)                          | [Link](./lib/hard/336_palindrome_pairs.rb)                         | [Link](./test/hard/test_336_palindrome_pairs.rb)                         |
-| 363. Max Sum of Rectangle No Larger Than K    | [Link](https://leetcode.com/problems/max-sum-of-rectangle-no-larger-than-k/)     | [Link](./lib/hard/363_max_sum_of_rectangle_no_larger_than_k.rb)    | [Link](./test/hard/test_363_max_sum_of_rectangle_no_larger_than_k.rb)    |
-| 458. Poor Pigs                                | [Link](https://leetcode.com/problems/poor-pigs/)                                 | [Link](./lib/hard/458_poor_pigs.rb)                                | [Link](./test/hard/test_458_poor_pigs.rb)                                |
-| 871. Minimum Number of Refueling Stops        | [Link](https://leetcode.com/problems/minimum-number-of-refueling-stops/)         | [Link](./lib/hard/871_minimum_number_of_refueling_stops.rb)        | [Link](./test/hard/test_871_minimum_number_of_refueling_stops.rb)        |
-| 895. Maximum Frequency Stack                  | [Link](https://leetcode.com/problems/maximum-frequency-stack/)                   | [Link](./lib/hard/895_maximum_frequency_stack.rb)                  | [Link](./test/hard/test_895_maximum_frequency_stack.rb)                  |
-| 936. Stamping The Sequence                    | [Link](https://leetcode.com/problems/stamping-the-sequence/)                     | [Link](./lib/hard/936_stamping_the_sequence.rb)                    | [Link](./test/hard/test_936_stamping_the_sequence.rb)                    |
-| 968. Binary Tree Cameras                      | [Link](https://leetcode.com/problems/binary-tree-cameras/)                       | [Link](./lib/hard/968_binary_tree_cameras.rb)                      | [Link](./test/hard/test_968_binary_tree_cameras.rb)                      |
-| 1106. Parsing A Boolean Expression            | [Link](https://leetcode.com/problems/parsing-a-boolean-expression/)              | [Link](./lib/hard/1106_parsing_a_boolean_expression.rb)            | [Link](./test/hard/test_1106_parsing_a_boolean_expression.rb)            |
-| 1220. Count Vowels Permutation                | [Link](https://leetcode.com/problems/count-vowels-permutation/)                  | [Link](./lib/hard/1220_count_vowels_permutation.rb)                | [Link](./test/hard/test_1220_count_vowels_permutation.rb)                |
+| Name                                                          | Link to LeetCode                                                                               | Link to solution                                                                   | Link to tests                                                                            |
+| ------------------------------------------------------------- | ---------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------- |
+| 4. Median of Two Sorted Arrays                                | [Link](https://leetcode.com/problems/median-of-two-sorted-arrays/)                             | [Link](./lib/hard/4_median_of_two_sorted_arrays.rb)                                | [Link](./test/hard/test_4_median_of_two_sorted_arrays.rb)                                |
+| 10. Regular Expression Matching                               | [Link](https://leetcode.com/problems/regular-expression-matching/)                             | [Link](./lib/hard/10_regular_expression_matching.rb)                               | [Link](./test/hard/test_10_regular_expression_matching.rb)                               |
+| 23. Merge k Sorted Lists                                      | [Link](https://leetcode.com/problems/merge-k-sorted-lists/)                                    | [Link](./lib/hard/23_merge_k_sorted_lists.rb)                                      | [Link](./test/hard/test_23_merge_k_sorted_lists.rb)                                      |
+| 25. Reverse Nodes in k-Group                                  | [Link](https://leetcode.com/problems/reverse-nodes-in-k-group/)                                | [Link](./lib/hard/25_reverse_nodes_in_k_group.rb)                                  | [Link](./test/hard/test_25_reverse_nodes_in_k_group.rb)                                  |
+| 30. Substring with Concatenation of All Words                 | [Link](https://leetcode.com/problems/substring-with-concatenation-of-all-words/)               | [Link](./lib/hard/30_substring_with_concatenation_of_all_words.rb)                 | [Link](./test/hard/test_30_substring_with_concatenation_of_all_words.rb)                 |
+| 32. Longest Valid Parentheses                                 | [Link](https://leetcode.com/problems/longest-valid-parentheses/)                               | [Link](./lib/hard/32_longest_valid_parentheses.rb)                                 | [Link](./test/hard/test_32_longest_valid_parentheses.rb)                                 |
+| 41. First Missing Positive                                    | [Link](https://leetcode.com/problems/first-missing-positive/)                                  | [Link](./lib/hard/41_first_missing_positive.rb)                                    | [Link](./test/hard/test_41_first_missing_positive.rb)                                    |
+| 115. Distinct Subsequences                                    | [Link](https://leetcode.com/problems/distinct-subsequences/)                                   | [Link](./lib/hard/115_distinct_subsequences.rb)                                    | [Link](./test/hard/test_115_distinct_subsequences.rb)                                    |
+| 126. Word Ladder II                                           | [Link](https://leetcode.com/problems/word-ladder-ii/)                                          | [Link](./lib/hard/126_word_ladder_ii.rb)                                           | [Link](./test/hard/test_126_word_ladder_ii.rb)                                           |
+| 233. Number of Digit One                                      | [Link](https://leetcode.com/problems/number-of-digit-one/)                                     | [Link](./lib/hard/233_number_of_digit_one.rb)                                      | [Link](./test/hard/test_233_number_of_digit_one.rb)                                      |
+| 239. Sliding Window Maximum                                   | [Link](https://leetcode.com/problems/sliding-window-maximum/)                                  | [Link](./lib/hard/239_sliding_window_maximum.rb)                                   | [Link](./test/hard/test_239_sliding_window_maximum.rb)                                   |
+| 297. Serialize and Deserialize Binary Tree                    | [Link](https://leetcode.com/problems/serialize-and-deserialize-binary-tree/)                   | [Link](./lib/hard/297_serialize_and_deserialize_binary_tree.rb)                    | [Link](./test/hard/test_297_serialize_and_deserialize_binary_tree.rb)                    |
+| 336. Palindrome Pairs                                         | [Link](https://leetcode.com/problems/palindrome-pairs/)                                        | [Link](./lib/hard/336_palindrome_pairs.rb)                                         | [Link](./test/hard/test_336_palindrome_pairs.rb)                                         |
+| 363. Max Sum of Rectangle No Larger Than K                    | [Link](https://leetcode.com/problems/max-sum-of-rectangle-no-larger-than-k/)                   | [Link](./lib/hard/363_max_sum_of_rectangle_no_larger_than_k.rb)                    | [Link](./test/hard/test_363_max_sum_of_rectangle_no_larger_than_k.rb)                    |
+| 458. Poor Pigs                                                | [Link](https://leetcode.com/problems/poor-pigs/)                                               | [Link](./lib/hard/458_poor_pigs.rb)                                                | [Link](./test/hard/test_458_poor_pigs.rb)                                                |
+| 871. Minimum Number of Refueling Stops                        | [Link](https://leetcode.com/problems/minimum-number-of-refueling-stops/)                       | [Link](./lib/hard/871_minimum_number_of_refueling_stops.rb)                        | [Link](./test/hard/test_871_minimum_number_of_refueling_stops.rb)                        |
+| 895. Maximum Frequency Stack                                  | [Link](https://leetcode.com/problems/maximum-frequency-stack/)                                 | [Link](./lib/hard/895_maximum_frequency_stack.rb)                                  | [Link](./test/hard/test_895_maximum_frequency_stack.rb)                                  |
+| 936. Stamping The Sequence                                    | [Link](https://leetcode.com/problems/stamping-the-sequence/)                                   | [Link](./lib/hard/936_stamping_the_sequence.rb)                                    | [Link](./test/hard/test_936_stamping_the_sequence.rb)                                    |
+| 968. Binary Tree Cameras                                      | [Link](https://leetcode.com/problems/binary-tree-cameras/)                                     | [Link](./lib/hard/968_binary_tree_cameras.rb)                                      | [Link](./test/hard/test_968_binary_tree_cameras.rb)                                      |
+| 1106. Parsing A Boolean Expression                            | [Link](https://leetcode.com/problems/parsing-a-boolean-expression/)                            | [Link](./lib/hard/1106_parsing_a_boolean_expression.rb)                            | [Link](./test/hard/test_1106_parsing_a_boolean_expression.rb)                            |
+| 1220. Count Vowels Permutation                                | [Link](https://leetcode.com/problems/count-vowels-permutation/)                                | [Link](./lib/hard/1220_count_vowels_permutation.rb)                                | [Link](./test/hard/test_1220_count_vowels_permutation.rb)                                |
+| 1770. Maximum Score from Performing Multiplication Operations | [Link](https://leetcode.com/problems/maximum-score-from-performing-multiplication-operations/) | [Link](./lib/hard/1770_maximum_score_from_performing_multiplication_operations.rb) | [Link](./test/hard/test_1770_maximum_score_from_performing_multiplication_operations.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 = '8.0.4'
+  s.version = '8.0.5'
   s.license = 'MIT'
   s.files = ::Dir['lib/**/*.rb'] + %w[README.md]
   s.executable = 'leetcode-ruby'

lib/hard/1770_maximum_score_from_performing_multiplication_operations.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: false
+
+# https://leetcode.com/problems/maximum-score-from-performing-multiplication-operations/
+# @param {Integer[]} nums
+# @param {Integer[]} multipliers
+# @return {Integer}
+def maximum_score(nums, multipliers)
+  m = multipliers.length
+  dp = ::Array.new(m + 1) { ::Array.new(m + 1, 0) }
+  n = nums.length
+
+  (m - 1).downto(0) do |op|
+    (op).downto(0) do |l|
+      dp[op][l] = [
+        multipliers[op] * nums[l] + dp[op + 1][l + 1],
+        multipliers[op] * nums[n - 1 - (op - l)] + dp[op + 1][l]
+      ].max
+    end
+  end
+
+  dp[0][0]
+end

test/hard/test_1770_maximum_score_from_performing_multiplication_operations.rb

@@ -0,0 +1,27 @@
+# frozen_string_literal: false
+
+require_relative '../test_helper'
+require_relative '../../lib/hard/1770_maximum_score_from_performing_multiplication_operations'
+require 'minitest/autorun'
+
+class MaximumScoreFromPerformingMultiplicationOperationsTest < ::Minitest::Test
+  def test_default_one
+    assert_equal(
+      14,
+      maximum_score(
+        [1, 2, 3],
+        [3, 2, 1]
+      )
+    )
+  end
+
+  def test_default_two
+    assert_equal(
+      102,
+      maximum_score(
+        [-5, -3, -3, -2, 7, 1],
+        [-10, -5, 3, 4, 6]
+      )
+    )
+  end
+end