diff --git a/README.md b/README.md index d18333b6..a0f52ea4 100644 --- a/README.md +++ b/README.md @@ -754,6 +754,7 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/). | 2295. Replace Elements in an Array | [Link](https://leetcode.com/problems/replace-elements-in-an-array/) | [Link](./lib/medium/2295_replace_elements_in_an_array.rb) | [Link](./test/medium/test_2295_replace_elements_in_an_array.rb) | | 2326. Spiral Matrix IV | [Link](https://leetcode.com/problems/spiral-matrix-iv/) | [Link](./lib/medium/2326_spiral_matrix_iv.rb) | [Link](./test/medium/test_2326_spiral_matrix_iv.rb) | | 2375. Construct Smallest Number From DI String | [Link](https://leetcode.com/problems/construct-smallest-number-from-di-string/) | [Link](./lib/medium/2375_construct_smallest_number_from_di_string.rb) | [Link](./test/medium/test_2375_construct_smallest_number_from_di_string.rb) | +| 2390. Removing Stars From a String | [Link](https://leetcode.com/problems/removing-stars-from-a-string/) | [Link](./lib/medium/2390_removing_stars_from_a_string.rb) | [Link](./test/medium/test_2390_removing_stars_from_a_string.rb) | | 2425. Bitwise XOR of All Pairings | [Link](https://leetcode.com/problems/bitwise-xor-of-all-pairings/) | [Link](./lib/medium/2425_bitwise_xor_of_all_pairings.rb) | [Link](./test/medium/test_2425_bitwise_xor_of_all_pairings.rb) | | 2429. Minimize XOR | [Link](https://leetcode.com/problems/minimize-xor/) | [Link](./lib/medium/2429_minimize_xor.rb) | [Link](./test/medium/test_2429_minimize_xor.rb) | | 2657. Find the Prefix Common Array of Two Arrays | [Link](https://leetcode.com/problems/find-the-prefix-common-array-of-two-arrays/) | [Link](./lib/medium/2657_find_the_prefix_common_array_of_two_arrays.rb) | [Link](./test/medium/test_2657_find_the_prefix_common_array_of_two_arrays.rb) | diff --git a/leetcode-ruby.gemspec b/leetcode-ruby.gemspec index cc7b8dd3..5754f1f9 100644 --- a/leetcode-ruby.gemspec +++ b/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 = '9.1.9' + s.version = '9.2.0' s.license = 'MIT' s.files = ::Dir['lib/**/*.rb'] + %w[README.md] s.executable = 'leetcode-ruby' diff --git a/lib/medium/2390_removing_stars_from_a_string.rb b/lib/medium/2390_removing_stars_from_a_string.rb new file mode 100644 index 00000000..de0bde11 --- /dev/null +++ b/lib/medium/2390_removing_stars_from_a_string.rb @@ -0,0 +1,18 @@ +# frozen_string_literal: true + +# https://leetcode.com/problems/removing-stars-from-a-string/ +# @param {String} s +# @return {String} +def remove_stars(s) + stack = [] + + s.each_char do |char| + if char == '*' + stack.pop unless stack.empty? + else + stack.push(char) + end + end + + stack.join +end diff --git a/test/medium/test_2390_removing_stars_from_a_string.rb b/test/medium/test_2390_removing_stars_from_a_string.rb new file mode 100644 index 00000000..4998a5ef --- /dev/null +++ b/test/medium/test_2390_removing_stars_from_a_string.rb @@ -0,0 +1,25 @@ +# frozen_string_literal: true + +require_relative '../test_helper' +require_relative '../../lib/medium/2390_removing_stars_from_a_string' +require 'minitest/autorun' + +class RemovingStarsFromAStringTest < ::Minitest::Test + def test_default_one + assert_equal( + 'lecoe', + remove_stars( + 'leet**cod*e' + ) + ) + end + + def test_default_two + assert_equal( + '', + remove_stars( + 'erase*****' + ) + ) + end +end