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2025年04月24日 v. 9.3.3: added "3210. Find the Encrypted String"

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`@@ -463,6 +463,7 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/).`
`463`	`463`	`\| 3131. Find the Integer Added to Array I \| [Link](https://leetcode.com/problems/find-the-integer-added-to-array-i/) \| [Link](./lib/easy/3131_find_the_integer_added_to_array_i.rb) \| [Link](./test/easy/test_3131_find_the_integer_added_to_array_i.rb) \|`
`464`	`464`	`\| 3136. Valid Word \| [Link](https://leetcode.com/problems/valid-word/) \| [Link](./lib/easy/3136_valid_word.rb) \| [Link](./test/easy/test_3136_valid_word.rb) \|`
`465`	`465`	`\| 3151. Special Array I \| [Link](https://leetcode.com/problems/special-array-i/) \| [Link](./lib/easy/3151_special_array_i.rb) \| [Link](./test/easy/test_3151_special_array_i.rb) \|`
	`466`	`+\| 3210. Find the Encrypted String \| [Link](https://leetcode.com/problems/find-the-encrypted-string/) \| [Link](./lib/easy/3210_find_the_encrypted_string.rb) \| [Link](./test/easy/test_3210_find_the_encrypted_string.rb) \|`
`466`	`467`	`\| 3498. Reverse Degree of a String \| [Link](https://leetcode.com/problems/reverse-degree-of-a-string/) \| [Link](./lib/easy/3498_reverse_degree_of_a_string.rb) \| [Link](./test/easy/test_3498_reverse_degree_of_a_string.rb) \|`
`467`	`468`
`468`	`469`	`### Medium`

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`@@ -0,0 +1,23 @@`
	`1`	`+# frozen_string_literal: true`
	`2`	`+`
	`3`	`+# https://leetcode.com/problems/find-the-encrypted-string/`
	`4`	`+# @param {String} s`
	`5`	`+# @param {Integer} k`
	`6`	`+# @return {String}`
	`7`	`+def get_encrypted_string(s, k)`
	`8`	`+ result = ::Array.new(s.size)`
	`9`	`+`
	`10`	`+ (0...s.size).each do \|i\|`
	`11`	`+ if i + k < s.size`
	`12`	`+ result << s[i + k]`
	`13`	`+ else`
	`14`	`+ index = i + k`
	`15`	`+`
	`16`	`+ index = (s.size - index).abs until index < s.size`
	`17`	`+`
	`18`	`+ result << s[index]`
	`19`	`+ end`
	`20`	`+ end`
	`21`	`+`
	`22`	`+ result.join`
	`23`	`+end`

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`@@ -0,0 +1,27 @@`
	`1`	`+# frozen_string_literal: true`
	`2`	`+`
	`3`	`+require_relative '../test_helper'`
	`4`	`+require_relative '../../lib/easy/3210_find_the_encrypted_string'`
	`5`	`+require 'minitest/autorun'`
	`6`	`+`
	`7`	`+class FindTheEncryptedStringTest < ::Minitest::Test`
	`8`	`+ def test_default_one`
	`9`	`+ assert_equal(`
	`10`	`+ 'tdar',`
	`11`	`+ get_encrypted_string(`
	`12`	`+ 'dart',`
	`13`	`+ 3`
	`14`	`+ )`
	`15`	`+ )`
	`16`	`+ end`
	`17`	`+`
	`18`	`+ def test_default_two`
	`19`	`+ assert_equal(`
	`20`	`+ 'aaa',`
	`21`	`+ get_encrypted_string(`
	`22`	`+ 'aaa',`
	`23`	`+ 1`
	`24`	`+ )`
	`25`	`+ )`
	`26`	`+ end`
	`27`	`+end`

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