Merge pull request #605 from fartem/2303_Calculate_Amount_Paid_in_Taxes

2024-04-17 v. 5.4.8: added "2303. Calculate Amount Paid in Taxes"

Author: fartem

README.md

@@ -408,3 +408,4 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/).
 | 2287. Rearrange Characters to Make Target String                   | [Link](https://leetcode.com/problems/rearrange-characters-to-make-target-string/)                   | [Link](./lib/easy/2287_rearrange_characters_to_make_target_string.rb)                   |
 | 2293. Min Max Game                                                 | [Link](https://leetcode.com/problems/min-max-game/)                                                 | [Link](./lib/easy/2293_min_max_game.rb)                                                 |
 | 2299. Strong Password Checker II                                   | [Link](https://leetcode.com/problems/strong-password-checker-ii/)                                   | [Link](./lib/easy/2299_strong_password_checker_ii.rb)                                   |
+| 2303. Calculate Amount Paid in Taxes                               | [Link](https://leetcode.com/problems/calculate-amount-paid-in-taxes/)                               | [Link](./lib/easy/2303_calculate_amount_paid_in_taxes.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 = '5.4.7'
+  s.version = '5.4.8'
   s.license = 'MIT'
   s.files = ::Dir['lib/**/*.rb'] + %w[bin/leetcode-ruby README.md LICENSE]
   s.executable = 'leetcode-ruby'

lib/easy/2303_calculate_amount_paid_in_taxes.rb

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+# https://leetcode.com/problems/calculate-amount-paid-in-taxes/
+# @param {Integer[][]} brackets
+# @param {Integer} income
+# @return {Float}
+def calculate_tax(brackets, income)
+  result = 0.0
+  prev = 0
+  brackets.each do |bracket|
+    upper = bracket.first
+    percent = bracket.last
+
+    return result + ((income - prev) * percent / 100.0) if income < upper
+
+    result += (upper - prev) * percent / 100.0
+    prev = upper
+  end
+
+  result
+end

test/easy/test_2303_calculate_amount_paid_in_taxes.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+require_relative '../test_helper'
+require_relative '../../lib/easy/2303_calculate_amount_paid_in_taxes'
+require 'minitest/autorun'
+
+class CalculateAmountPaidInTaxesTest < ::Minitest::Test
+  def test_default
+    assert_equal(2.65000, calculate_tax([[3, 50], [7, 10], [12, 25]], 10))
+    assert_equal(0.25000, calculate_tax([[1, 0], [4, 25], [5, 50]], 2))
+    assert_equal(0.00000, calculate_tax([[2, 50]], 0))
+  end
+
+  def test_additional
+    assert_equal(0.33000, calculate_tax([[1, 33]], 1))
+  end
+end