leetcode-problemset/leetcode-cn/originData/fu-za-lian-biao-de-fu-zhi-lcof.json

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            "questionId": "100300",
            "questionFrontendId": "LCR 154",
            "categoryTitle": "Algorithms",
            "boundTopicId": 86397,
            "title": "随机链表的复制",
            "titleSlug": "fu-za-lian-biao-de-fu-zhi-lcof",
            "content": "English description is not available for the problem. Please switch to Chinese.",
            "translatedTitle": "复杂链表的复制",
            "translatedContent": "<p>请实现 <code>copyRandomList</code> 函数，复制一个复杂链表。在复杂链表中，每个节点除了有一个 <code>next</code> 指针指向下一个节点，还有一个 <code>random</code> 指针指向链表中的任意节点或者 <code>null</code>。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/01/09/e1.png\"></p>\n\n<pre><strong>输入：</strong>head = [[7,null],[13,0],[11,4],[10,2],[1,0]]\n<strong>输出：</strong>[[7,null],[13,0],[11,4],[10,2],[1,0]]\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/01/09/e2.png\"></p>\n\n<pre><strong>输入：</strong>head = [[1,1],[2,1]]\n<strong>输出：</strong>[[1,1],[2,1]]\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<p><strong><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/01/09/e3.png\"></strong></p>\n\n<pre><strong>输入：</strong>head = [[3,null],[3,0],[3,null]]\n<strong>输出：</strong>[[3,null],[3,0],[3,null]]\n</pre>\n\n<p><strong>示例 4：</strong></p>\n\n<pre><strong>输入：</strong>head = []\n<strong>输出：</strong>[]\n<strong>解释：</strong>给定的链表为空（空指针），因此返回 null。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>-10000 &lt;= Node.val &lt;= 10000</code></li>\n\t<li><code>Node.random</code>&nbsp;为空（null）或指向链表中的节点。</li>\n\t<li>节点数目不超过 1000 。</li>\n</ul>\n\n<p>&nbsp;</p>\n\n<p><strong>注意：</strong>本题与主站 138 题相同：<a href=\"https://leetcode-cn.com/problems/copy-list-with-random-pointer/\">https://leetcode-cn.com/problems/copy-list-with-random-pointer/</a></p>\n\n<p>&nbsp;</p>\n",
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                    "name": "Hash Table",
                    "slug": "hash-table",
                    "translatedName": "哈希表",
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                    "name": "Linked List",
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                    "code": "/**\n * // Definition for a Node.\n * function Node(val, next, random) {\n *    this.val = val;\n *    this.next = next;\n *    this.random = random;\n * };\n */\n\n/**\n * @param {Node} head\n * @return {Node}\n */\nvar copyRandomList = function(head) {\n    \n};",
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