Merge pull request #180 from fartem/674_Longest_Continuous_Increasing…

…_Subsequence

2023-01-27 v. 1.3.1: added "674. Longest Continuous Increasing Subsequence"

README.md

@@ -136,3 +136,4 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/).
 | 653. Two Sum IV - Input is a BST                       | [Link](https://leetcode.com/problems/two-sum-iv-input-is-a-bst/)                          | [Link](./lib/easy/653_two_sum_iv_input_is_a_bst.rb)                         |
 | 657. Robot Return to Origin                            | [Link](https://leetcode.com/problems/robot-return-to-origin/)                             | [Link](./lib/easy/657_robot_return_to_origin.rb)                            |
 | 671. Second Minimum Node In a Binary Tree              | [Link](https://leetcode.com/problems/second-minimum-node-in-a-binary-tree/)               | [Link](./lib/easy/671_second_minimum_node_in_a_binary_tree.rb)              |
+| 674. Longest Continuous Increasing Subsequence         | [Link](https://leetcode.com/problems/longest-continuous-increasing-subsequence/)          | [Link](./lib/easy/674_longest_continuous_increasing_subsequence.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 = '1.3.0'
+  s.version = '1.3.1'
   s.license = 'MIT'
   s.files = ::Dir['lib/**/*.rb'] + %w[bin/leetcode-ruby README.md LICENSE]
   s.executable = 'leetcode-ruby'

lib/easy/674_longest_continuous_increasing_subsequence.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+# https://leetcode.com/problems/longest-continuous-increasing-subsequence/
+# @param {Integer[]} nums
+# @return {Integer}
+def find_length_of_lcis(nums)
+  result = 0
+  max = 1
+  (1...nums.length).step(1) do |i|
+    if nums[i - 1] < nums[i]
+      max += 1
+    else
+      result = max if max > result
+      max = 1
+    end
+  end
+
+  [result, max].max
+end

test/easy/test_674_longest_continuous_increasing_subsequence.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+require_relative '../test_helper'
+require_relative '../../lib/easy/674_longest_continuous_increasing_subsequence'
+require 'minitest/autorun'
+
+class LongestContinuousIncreasingSubsequenceTest < ::Minitest::Test
+  def test_default
+    assert_equal(
+      3,
+      find_length_of_lcis(
+        [1, 3, 5, 4, 7]
+      )
+    )
+    assert_equal(
+      1,
+      find_length_of_lcis(
+        [2, 2, 2, 2, 2]
+      )
+    )
+  end
+end