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"translatedContent": "<p>给定字典中的两个词,长度相等。写一个方法,把一个词转换成另一个词, 但是一次只能改变一个字符。每一步得到的新词都必须能在字典中找到。</p>\n\n<p>编写一个程序,返回一个可能的转换序列。如有多个可能的转换序列,你可以返回任何一个。</p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre><strong>输入:</strong>\nbeginWord = &quot;hit&quot;,\nendWord = &quot;cog&quot;,\nwordList = [&quot;hot&quot;,&quot;dot&quot;,&quot;dog&quot;,&quot;lot&quot;,&quot;log&quot;,&quot;cog&quot;]\n\n<strong>输出:</strong>\n[&quot;hit&quot;,&quot;hot&quot;,&quot;dot&quot;,&quot;lot&quot;,&quot;log&quot;,&quot;cog&quot;]\n</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<pre><strong>输入:</strong>\nbeginWord = &quot;hit&quot;\nendWord = &quot;cog&quot;\nwordList = [&quot;hot&quot;,&quot;dot&quot;,&quot;dog&quot;,&quot;lot&quot;,&quot;log&quot;]\n\n<strong>输出: </strong>[]\n\n<strong>解释:</strong>&nbsp;<em>endWord</em> &quot;cog&quot; 不在字典中,所以不存在符合要求的转换序列。</pre>\n",
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"hints": [
"从一个蛮力的递归解法开始。只需要创建所有一次编辑的单词,检查它们是否在字典中,然后尝试该编辑路径。",
"一旦你有了一个蛮力解法,就可以尝试找到一个更快的方法以得到所有一次编辑的有效单词。当绝大多数字符串都不是有效的字典单词时,你不会想创建所有一次编辑的字符串。",