diff --git a/README.md b/README.md index 09fc3b64..4187291a 100644 --- a/README.md +++ b/README.md @@ -404,3 +404,4 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/). | 2259. Remove Digit From Number to Maximize Result | [Link](https://leetcode.com/problems/remove-digit-from-number-to-maximize-result/) | [Link](./lib/easy/2259_remove_digit_from_number_to_maximize_result.rb) | | 2264. Largest 3-Same-Digit Number in String | [Link](https://leetcode.com/problems/largest-3-same-digit-number-in-string/) | [Link](./lib/easy/2264_largest_3_same_digit_number_in_string.rb) | | 2278. Percentage of Letter in String | [Link](https://leetcode.com/problems/percentage-of-letter-in-string/) | [Link](./lib/easy/2278_percentage_of_letter_in_string.rb) | +| 2283. Check if Number Has Equal Digit Count and Digit Value | [Link](https://leetcode.com/problems/check-if-number-has-equal-digit-count-and-digit-value/) | [Link](./lib/easy/2283_check_if_number_has_equal_digit_count_and_digit_value.rb) | diff --git a/leetcode-ruby.gemspec b/leetcode-ruby.gemspec index 1607a987..3e8dab80 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 = '5.4.3' + s.version = '5.4.4' s.license = 'MIT' s.files = ::Dir['lib/**/*.rb'] + %w[bin/leetcode-ruby README.md LICENSE] s.executable = 'leetcode-ruby' diff --git a/lib/easy/2283_check_if_number_has_equal_digit_count_and_digit_value.rb b/lib/easy/2283_check_if_number_has_equal_digit_count_and_digit_value.rb new file mode 100644 index 00000000..f7936aad --- /dev/null +++ b/lib/easy/2283_check_if_number_has_equal_digit_count_and_digit_value.rb @@ -0,0 +1,12 @@ +# frozen_string_literal: true + +# https://leetcode.com/problems/check-if-number-has-equal-digit-count-and-digit-value/ +# @param {String} num +# @return {Boolean} +def digit_count(num) + count = ::Array.new(10, 0) + (0...num.length).each { |i| count[num[i].to_i] += 1 } + (0...num.length).each { |i| return false unless num[i].to_i == count[i] } + + true +end diff --git a/test/easy/test_2283_check_if_number_has_equal_digit_count_and_digit_value.rb b/test/easy/test_2283_check_if_number_has_equal_digit_count_and_digit_value.rb new file mode 100644 index 00000000..f25a7c40 --- /dev/null +++ b/test/easy/test_2283_check_if_number_has_equal_digit_count_and_digit_value.rb @@ -0,0 +1,12 @@ +# frozen_string_literal: true + +require_relative '../test_helper' +require_relative '../../lib/easy/2283_check_if_number_has_equal_digit_count_and_digit_value' +require 'minitest/autorun' + +class CheckIfNumberHasEqualDigitCountAndDigitValueTest < ::Minitest::Test + def test_default + assert(digit_count('1210')) + assert(!digit_count('030')) + end +end