{ "data": { "question": { "questionId": "100300", "questionFrontendId": "剑指 Offer 35", "categoryTitle": "LCOF", "boundTopicId": 86397, "title": "复杂链表的复制 LCOF", "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": "

请实现 copyRandomList 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 next 指针指向下一个节点，还有一个 random 指针指向链表中的任意节点或者 null。

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示例 1：

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输入：head = [[7,null],[13,0],[11,4],[10,2],[1,0]]\n输出：[[7,null],[13,0],[11,4],[10,2],[1,0]]\n
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示例 2：

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输入：head = [[1,1],[2,1]]\n输出：[[1,1],[2,1]]\n
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示例 3：

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输入：head = [[3,null],[3,0],[3,null]]\n输出：[[3,null],[3,0],[3,null]]\n
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示例 4：

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输入：head = []\n输出：[]\n解释：给定的链表为空（空指针），因此返回 null。\n
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提示：

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注意：本题与主站 138 题相同：https://leetcode-cn.com/problems/copy-list-with-random-pointer/

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