diff --git a/README.md b/README.md index 615a819e..36ad1eeb 100644 --- a/README.md +++ b/README.md @@ -714,6 +714,7 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/). | 1685. Sum of Absolute Differences in a Sorted Array | [Link](https://leetcode.com/problems/sum-of-absolute-differences-in-a-sorted-array/) | [Link](./lib/medium/1685_sum_of_absolute_differences_in_a_sorted_array.rb) | [Link](./test/medium/test_1685_sum_of_absolute_differences_in_a_sorted_array.rb) | | 1706. Where Will the Ball Fall | [Link](https://leetcode.com/problems/where-will-the-ball-fall/) | [Link](./lib/medium/1706_where_will_the_ball_fall.rb) | [Link](./test/medium/test_1706_where_will_the_ball_fall.rb) | | 1721. Swapping Nodes in a Linked List | [Link](https://leetcode.com/problems/swapping-nodes-in-a-linked-list/) | [Link](./lib/medium/1721_swapping_nodes_in_a_linked_list.rb) | [Link](./test/medium/test_1721_swapping_nodes_in_a_linked_list.rb) | +| 1780. Check if Number is a Sum of Powers of Three | [Link](https://leetcode.com/problems/check-if-number-is-a-sum-of-powers-of-three/) | [Link](./lib/medium/1780_check_if_number_is_a_sum_of_powers_of_three.rb) | [Link](./test/medium/test_1780_check_if_number_is_a_sum_of_powers_of_three.rb) | | 2116. Check if a Parentheses String Can Be Valid | [Link](https://leetcode.com/problems/check-if-a-parentheses-string-can-be-valid/) | [Link](./lib/medium/2116_check_if_a_parentheses_string_can_be_valid.rb) | [Link](./test/medium/test_2116_check_if_a_parentheses_string_can_be_valid.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) | diff --git a/leetcode-ruby.gemspec b/leetcode-ruby.gemspec index a076c652..c7114933 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 = '8.8.0' + s.version = '8.8.1' s.license = 'MIT' s.files = ::Dir['lib/**/*.rb'] + %w[README.md] s.executable = 'leetcode-ruby' diff --git a/lib/medium/1780_check_if_number_is_a_sum_of_powers_of_three.rb b/lib/medium/1780_check_if_number_is_a_sum_of_powers_of_three.rb new file mode 100644 index 00000000..24df4250 --- /dev/null +++ b/lib/medium/1780_check_if_number_is_a_sum_of_powers_of_three.rb @@ -0,0 +1,6 @@ +# frozen_string_literal: true + +# https://leetcode.com/problems/check-if-number-is-a-sum-of-powers-of-three/ +# @param {Integer} n +# @return {Boolean} +def check_powers_of_three(n) = !n.to_s(3).include?('2') diff --git a/test/medium/test_1780_check_if_number_is_a_sum_of_powers_of_three.rb b/test/medium/test_1780_check_if_number_is_a_sum_of_powers_of_three.rb new file mode 100644 index 00000000..d9890f7e --- /dev/null +++ b/test/medium/test_1780_check_if_number_is_a_sum_of_powers_of_three.rb @@ -0,0 +1,13 @@ +# frozen_string_literal: true + +require_relative '../test_helper' +require_relative '../../lib/medium/1780_check_if_number_is_a_sum_of_powers_of_three' +require 'minitest/autorun' + +class CheckIfNumberIsASumOfPowersThreeTest < ::Minitest::Test + def test_default_one = assert(check_powers_of_three(12)) + + def test_default_two = assert(check_powers_of_three(91)) + + def test_default_three = assert(!check_powers_of_three(21)) +end