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Jan 14, 2025
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2025-01-14 v. 8.0.5: added "1770. Maximum Score from Performing Multiplication Operations" #882

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47 changes: 24 additions & 23 deletions README.md
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Expand Up @@ -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) |
2 changes: 1 addition & 1 deletion leetcode-ruby.gemspec
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Expand Up @@ -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'
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22 changes: 22 additions & 0 deletions lib/hard/1770_maximum_score_from_performing_multiplication_operations.rb
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# 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
27 changes: 27 additions & 0 deletions test/hard/test_1770_maximum_score_from_performing_multiplication_operations.rb
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# 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
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