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            "questionId": "1897",
            "questionFrontendId": "1771",
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            "title": "Maximize Palindrome Length From Subsequences",
            "titleSlug": "maximize-palindrome-length-from-subsequences",
            "content": "<p>You are given two strings, <code>word1</code> and <code>word2</code>. You want to construct a string in the following manner:</p>\n\n<ul>\n\t<li>Choose some <strong>non-empty</strong> subsequence <code>subsequence1</code> from <code>word1</code>.</li>\n\t<li>Choose some <strong>non-empty</strong> subsequence <code>subsequence2</code> from <code>word2</code>.</li>\n\t<li>Concatenate the subsequences: <code>subsequence1 + subsequence2</code>, to make the string.</li>\n</ul>\n\n<p>Return <em>the <strong>length</strong> of the longest <strong>palindrome</strong> that can be constructed in the described manner. </em>If no palindromes can be constructed, return <code>0</code>.</p>\n\n<p>A <strong>subsequence</strong> of a string <code>s</code> is a string that can be made by deleting some (possibly none) characters from <code>s</code> without changing the order of the remaining characters.</p>\n\n<p>A <strong>palindrome</strong> is a string that reads the same forward&nbsp;as well as backward.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> word1 = &quot;cacb&quot;, word2 = &quot;cbba&quot;\n<strong>Output:</strong> 5\n<strong>Explanation:</strong> Choose &quot;ab&quot; from word1 and &quot;cba&quot; from word2 to make &quot;abcba&quot;, which is a palindrome.</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> word1 = &quot;ab&quot;, word2 = &quot;ab&quot;\n<strong>Output:</strong> 3\n<strong>Explanation:</strong> Choose &quot;ab&quot; from word1 and &quot;a&quot; from word2 to make &quot;aba&quot;, which is a palindrome.</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> word1 = &quot;aa&quot;, word2 = &quot;bb&quot;\n<strong>Output:</strong> 0\n<strong>Explanation:</strong> You cannot construct a palindrome from the described method, so return 0.</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= word1.length, word2.length &lt;= 1000</code></li>\n\t<li><code>word1</code> and <code>word2</code> consist of lowercase English letters.</li>\n</ul>\n",
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            "exampleTestcases": "\"cacb\"\n\"cbba\"\n\"ab\"\n\"ab\"\n\"aa\"\n\"bb\"",
            "categoryTitle": "Algorithms",
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                    "lang": "C++",
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                    "code": "class Solution {\npublic:\n    int longestPalindrome(string word1, string word2) {\n        \n    }\n};",
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                    "lang": "Java",
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                    "code": "class Solution {\n    public int longestPalindrome(String word1, String word2) {\n        \n    }\n}",
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                    "lang": "Python",
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                    "code": "class Solution(object):\n    def longestPalindrome(self, word1, word2):\n        \"\"\"\n        :type word1: str\n        :type word2: str\n        :rtype: int\n        \"\"\"\n        ",
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                    "lang": "Python3",
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                    "code": "class Solution:\n    def longestPalindrome(self, word1: str, word2: str) -> int:\n        ",
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                    "lang": "C",
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                    "code": "\n\nint longestPalindrome(char * word1, char * word2){\n\n}",
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                    "code": "public class Solution {\n    public int LongestPalindrome(string word1, string word2) {\n        \n    }\n}",
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                    "lang": "JavaScript",
                    "langSlug": "javascript",
                    "code": "/**\n * @param {string} word1\n * @param {string} word2\n * @return {number}\n */\nvar longestPalindrome = function(word1, word2) {\n    \n};",
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                    "lang": "Ruby",
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                    "code": "# @param {String} word1\n# @param {String} word2\n# @return {Integer}\ndef longest_palindrome(word1, word2)\n    \nend",
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                    "lang": "Swift",
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                    "code": "class Solution {\n    func longestPalindrome(_ word1: String, _ word2: String) -> Int {\n        \n    }\n}",
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                    "lang": "Go",
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                    "code": "func longestPalindrome(word1 string, word2 string) int {\n    \n}",
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                    "lang": "Scala",
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                    "code": "object Solution {\n    def longestPalindrome(word1: String, word2: String): Int = {\n        \n    }\n}",
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                    "code": "class Solution {\n    fun longestPalindrome(word1: String, word2: String): Int {\n        \n    }\n}",
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                    "lang": "Rust",
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                    "code": "impl Solution {\n    pub fn longest_palindrome(word1: String, word2: String) -> i32 {\n        \n    }\n}",
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                    "code": "class Solution {\n\n    /**\n     * @param String $word1\n     * @param String $word2\n     * @return Integer\n     */\n    function longestPalindrome($word1, $word2) {\n        \n    }\n}",
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                    "code": "function longestPalindrome(word1: string, word2: string): number {\n\n};",
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                    "code": "(define/contract (longest-palindrome word1 word2)\n  (-> string? string? exact-integer?)\n\n  )",
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                    "lang": "Erlang",
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                    "code": "-spec longest_palindrome(Word1 :: unicode:unicode_binary(), Word2 :: unicode:unicode_binary()) -> integer().\nlongest_palindrome(Word1, Word2) ->\n  .",
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                    "code": "defmodule Solution do\n  @spec longest_palindrome(word1 :: String.t, word2 :: String.t) :: integer\n  def longest_palindrome(word1, word2) do\n\n  end\nend",
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            "hints": [
                "Let's ignore the non-empty subsequence constraint. We can concatenate the two strings and find the largest palindromic subsequence with dynamic programming.",
                "Iterate through every pair of characters word1[i] and word2[j], and see if some palindrome begins with word1[i] and ends with word2[j]. This ensures that the subsequences are non-empty."
            ],
            "solution": null,
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            "sampleTestCase": "\"cacb\"\n\"cbba\"",
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