From d26c267d1a774ccceb7148ec4be8c54d0e8d5437 Mon Sep 17 00:00:00 2001
From: fartem <jaman.smlnsk@gmail.com>
Date: Mon, 24 Mar 2025 09:07:56 +0300
Subject: [PATCH] 2025-03-24 v. 9.0.9: added "2177. Find Three Consecutive
 Integers That Sum to a Given Number"

---
 README.md                                     |  1 +
 leetcode-ruby.gemspec                         |  2 +-
 ...ive_integers_that_sum_to_a_given_number.rb | 14 +++++++++++++
 ...ive_integers_that_sum_to_a_given_number.rb | 21 +++++++++++++++++++
 4 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 lib/medium/2177_find_three_consecutive_integers_that_sum_to_a_given_number.rb
 create mode 100644 test/medium/test_2177_find_three_consecutive_integers_that_sum_to_a_given_number.rb

diff --git a/README.md b/README.md
index 15829521..8beabb94 100644
--- a/README.md
+++ b/README.md
@@ -743,6 +743,7 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/).
 | 2150. Find All Lonely Numbers in the Array                                          | [Link](https://leetcode.com/problems/find-all-lonely-numbers-in-the-array/)                                          | [Link](./lib/medium/2150_find_all_lonely_numbers_in_the_array.rb)                                          | [Link](./test/medium/test_2150_find_all_lonely_numbers_in_the_array.rb)                                          |
 | 2161. Partition Array According to Given Pivot                                      | [Link](https://leetcode.com/problems/partition-array-according-to-given-pivot/)                                      | [Link](./lib/medium/2161_partition_array_according_to_given_pivot.rb)                                      | [Link](./test/medium/test_2161_partition_array_according_to_given_pivot.rb)                                      |
 | 2165. Smallest Value of the Rearranged Number                                       | [Link](https://leetcode.com/problems/smallest-value-of-the-rearranged-number/)                                       | [Link](./lib/medium/2165_smallest_value_of_the_rearranged_number.rb)                                       | [Link](./test/medium/test_2165_smallest_value_of_the_rearranged_number.rb)                                       |
+| 2177. Find Three Consecutive Integers That Sum to a Given Number                    | [Link](https://leetcode.com/problems/find-three-consecutive-integers-that-sum-to-a-given-number/)                    | [Link](./lib/medium/2177_find_three_consecutive_integers_that_sum_to_a_given_number.rb)                    | [Link](./test/medium/test_2177_find_three_consecutive_integers_that_sum_to_a_given_number.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 b1b3dd92..0b1bef24 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 = '9.0.8'
+  s.version = '9.0.9'
   s.license = 'MIT'
   s.files = ::Dir['lib/**/*.rb'] + %w[README.md]
   s.executable = 'leetcode-ruby'
diff --git a/lib/medium/2177_find_three_consecutive_integers_that_sum_to_a_given_number.rb b/lib/medium/2177_find_three_consecutive_integers_that_sum_to_a_given_number.rb
new file mode 100644
index 00000000..53abdeb4
--- /dev/null
+++ b/lib/medium/2177_find_three_consecutive_integers_that_sum_to_a_given_number.rb
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+# https://leetcode.com/problems/find-three-consecutive-integers-that-sum-to-a-given-number/
+# @param {Integer} num
+# @return {Integer[]}
+def sum_of_three(num)
+  middle = num / 3
+  start = middle - 1
+  nd = middle + 1
+
+  return [] unless (start + middle + nd) == num
+
+  [start, middle, nd]
+end
diff --git a/test/medium/test_2177_find_three_consecutive_integers_that_sum_to_a_given_number.rb b/test/medium/test_2177_find_three_consecutive_integers_that_sum_to_a_given_number.rb
new file mode 100644
index 00000000..ae176ca1
--- /dev/null
+++ b/test/medium/test_2177_find_three_consecutive_integers_that_sum_to_a_given_number.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+require_relative '../test_helper'
+require_relative '../../lib/medium/2177_find_three_consecutive_integers_that_sum_to_a_given_number'
+require 'minitest/autorun'
+
+class FindThreeConsecutiveIntegersThatSumToAGivenNumberTest < ::Minitest::Test
+  def test_default_one
+    assert_equal(
+      [10, 11, 12],
+      sum_of_three(33)
+    )
+  end
+
+  def test_default_two
+    assert_equal(
+      [],
+      sum_of_three(4)
+    )
+  end
+end