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            "title": "Word Ladder",
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            "content": "<p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -&gt; s<sub>1</sub> -&gt; s<sub>2</sub> -&gt; ... -&gt; s<sub>k</sub></code> such that:</p>\n\n<ul>\n\t<li>Every adjacent pair of words differs by a single letter.</li>\n\t<li>Every <code>s<sub>i</sub></code> for <code>1 &lt;= i &lt;= k</code> is in <code>wordList</code>. Note that <code>beginWord</code> does not need to be in <code>wordList</code>.</li>\n\t<li><code>s<sub>k</sub> == endWord</code></li>\n</ul>\n\n<p>Given two words, <code>beginWord</code> and <code>endWord</code>, and a dictionary <code>wordList</code>, return <em>the <strong>number of words</strong> in the <strong>shortest transformation sequence</strong> from</em> <code>beginWord</code> <em>to</em> <code>endWord</code><em>, or </em><code>0</code><em> if no such sequence exists.</em></p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> beginWord = &quot;hit&quot;, endWord = &quot;cog&quot;, wordList = [&quot;hot&quot;,&quot;dot&quot;,&quot;dog&quot;,&quot;lot&quot;,&quot;log&quot;,&quot;cog&quot;]\n<strong>Output:</strong> 5\n<strong>Explanation:</strong> One shortest transformation sequence is &quot;hit&quot; -&gt; &quot;hot&quot; -&gt; &quot;dot&quot; -&gt; &quot;dog&quot; -&gt; cog&quot;, which is 5 words long.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> beginWord = &quot;hit&quot;, endWord = &quot;cog&quot;, wordList = [&quot;hot&quot;,&quot;dot&quot;,&quot;dog&quot;,&quot;lot&quot;,&quot;log&quot;]\n<strong>Output:</strong> 0\n<strong>Explanation:</strong> The endWord &quot;cog&quot; is not in wordList, therefore there is no valid transformation sequence.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= beginWord.length &lt;= 10</code></li>\n\t<li><code>endWord.length == beginWord.length</code></li>\n\t<li><code>1 &lt;= wordList.length &lt;= 5000</code></li>\n\t<li><code>wordList[i].length == beginWord.length</code></li>\n\t<li><code>beginWord</code>, <code>endWord</code>, and <code>wordList[i]</code> consist of lowercase English letters.</li>\n\t<li><code>beginWord != endWord</code></li>\n\t<li>All the words in <code>wordList</code> are <strong>unique</strong>.</li>\n</ul>\n",
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            "exampleTestcases": "\"hit\"\n\"cog\"\n[\"hot\",\"dot\",\"dog\",\"lot\",\"log\",\"cog\"]\n\"hit\"\n\"cog\"\n[\"hot\",\"dot\",\"dog\",\"lot\",\"log\"]",
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                    "lang": "C++",
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                    "code": "class Solution {\npublic:\n    int ladderLength(string beginWord, string endWord, vector<string>& wordList) {\n        \n    }\n};",
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                    "code": "class Solution {\n    public int ladderLength(String beginWord, String endWord, List<String> wordList) {\n        \n    }\n}",
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                    "lang": "Python",
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                    "code": "class Solution(object):\n    def ladderLength(self, beginWord, endWord, wordList):\n        \"\"\"\n        :type beginWord: str\n        :type endWord: str\n        :type wordList: List[str]\n        :rtype: int\n        \"\"\"\n        ",
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                    "code": "class Solution:\n    def ladderLength(self, beginWord: str, endWord: str, wordList: List[str]) -> int:\n        ",
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                    "lang": "C",
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                    "code": "\n\nint ladderLength(char * beginWord, char * endWord, char ** wordList, int wordListSize){\n\n}",
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                    "lang": "C#",
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                    "code": "public class Solution {\n    public int LadderLength(string beginWord, string endWord, IList<string> wordList) {\n        \n    }\n}",
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                    "lang": "JavaScript",
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                    "code": "/**\n * @param {string} beginWord\n * @param {string} endWord\n * @param {string[]} wordList\n * @return {number}\n */\nvar ladderLength = function(beginWord, endWord, wordList) {\n    \n};",
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                    "lang": "Ruby",
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                    "code": "# @param {String} begin_word\n# @param {String} end_word\n# @param {String[]} word_list\n# @return {Integer}\ndef ladder_length(begin_word, end_word, word_list)\n    \nend",
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                    "lang": "Swift",
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                    "code": "class Solution {\n    func ladderLength(_ beginWord: String, _ endWord: String, _ wordList: [String]) -> Int {\n        \n    }\n}",
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                    "lang": "Go",
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                    "code": "func ladderLength(beginWord string, endWord string, wordList []string) int {\n    \n}",
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                    "code": "object Solution {\n    def ladderLength(beginWord: String, endWord: String, wordList: List[String]): Int = {\n        \n    }\n}",
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                    "code": "class Solution {\n    fun ladderLength(beginWord: String, endWord: String, wordList: List<String>): Int {\n        \n    }\n}",
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                    "lang": "Rust",
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                    "code": "impl Solution {\n    pub fn ladder_length(begin_word: String, end_word: String, word_list: Vec<String>) -> i32 {\n        \n    }\n}",
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                    "lang": "PHP",
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                    "code": "class Solution {\n\n    /**\n     * @param String $beginWord\n     * @param String $endWord\n     * @param String[] $wordList\n     * @return Integer\n     */\n    function ladderLength($beginWord, $endWord, $wordList) {\n        \n    }\n}",
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                    "lang": "TypeScript",
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                    "code": "function ladderLength(beginWord: string, endWord: string, wordList: string[]): number {\n\n};",
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                    "code": "(define/contract (ladder-length beginWord endWord wordList)\n  (-> string? string? (listof string?) exact-integer?)\n\n  )",
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                    "lang": "Erlang",
                    "langSlug": "erlang",
                    "code": "-spec ladder_length(BeginWord :: unicode:unicode_binary(), EndWord :: unicode:unicode_binary(), WordList :: [unicode:unicode_binary()]) -> integer().\nladder_length(BeginWord, EndWord, WordList) ->\n  .",
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                    "lang": "Elixir",
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                    "code": "defmodule Solution do\n  @spec ladder_length(begin_word :: String.t, end_word :: String.t, word_list :: [String.t]) :: integer\n  def ladder_length(begin_word, end_word, word_list) do\n\n  end\nend",
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            "sampleTestCase": "\"hit\"\n\"cog\"\n[\"hot\",\"dot\",\"dog\",\"lot\",\"log\",\"cog\"]",
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For the latest Python, please choose Python3 instead.</p>\"], \"c\": [\"C\", \"<p>Compiled with <code>gcc 8.2</code> using the gnu99 standard.</p>\\r\\n\\r\\n<p>Your code is compiled with level one optimization (<code>-O1</code>). <a href=\\\"https://github.com/google/sanitizers/wiki/AddressSanitizer\\\" target=\\\"_blank\\\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n\\r\\n<p>For hash table operations, you may use <a href=\\\"https://troydhanson.github.io/uthash/\\\" target=\\\"_blank\\\">uthash</a>. \\\"uthash.h\\\" is included by default. Below are some examples:</p>\\r\\n\\r\\n<p><b>1. 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