leetcode-problemset/leetcode-cn/originData/qoQAMX.json

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    "data": {
        "question": {
            "questionId": "1000568",
            "questionFrontendId": "LCP 80",
            "categoryTitle": "Algorithms",
            "boundTopicId": 2258736,
            "title": "生物进化录",
            "titleSlug": "qoQAMX",
            "content": "English description is not available for the problem. Please switch to Chinese.",
            "translatedTitle": "生物进化录",
            "translatedContent": "在永恒之森中，存在着一本生物进化录，以 **一个树形结构** 记载了所有生物的演化过程。经过观察并整理了各节点间的关系，`parents[i]` 表示编号 `i` 节点的父节点编号(根节点的父节点为 `-1`)。\n\n为了探索和记录其中的演化规律，队伍中的炼金术师提出了一种方法，可以以字符串的形式将其复刻下来，规则如下：\n- 初始只有一个根节点，表示演化的起点，依次记录 `01` 字符串中的字符，\n- 如果记录 `0`，则在当前节点下添加一个子节点，并将指针指向新添加的子节点；\n- 如果记录 `1`，则将指针回退到当前节点的父节点处。\n\n现在需要应用上述的记录方法，复刻下它的演化过程。请返回能够复刻演化过程的字符串中， **字典序最小** 的 `01` 字符串。\n\n**注意：**\n- 节点指针最终可以停在任何节点上，不一定要回到根节点。\n\n**示例 1：**\n> 输入：`parents = [-1,0,0,2]`\n>\n> 输出：`\"00110\"`\n>\n>解释：树结构如下图所示，共存在 2 种记录方案：\n>第 1 种方案为：0(记录编号 1 的节点) -> 1(回退至节点 0) -> 0(记录编号 2 的节点) -> 0((记录编号 3 的节点))\n>第 2 种方案为：0(记录编号 2 的节点) -> 0(记录编号 3 的节点) -> 1(回退至节点 2) -> 1(回退至节点 0) -> 0(记录编号 1 的节点)\n>返回字典序更小的 `\"00110\"`\n![image.png](https://pic.leetcode.cn/1682319485-cRVudI-image.png){:width=120px}![进化 (3).gif](https://pic.leetcode.cn/1682412701-waHdnm-%E8%BF%9B%E5%8C%96%20\\(3\\).gif){:width=320px}\n\n\n\n**示例 2：**\n> 输入：`parents = [-1,0,0,1,2,2]`\n>\n> 输出：`\"00101100\"`\n\n**提示：**\n\n- `1 <= parents.length <= 10^4`\n- `-1 <= parents[i] < i` (即父节点编号小于子节点)",
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            "difficulty": "Hard",
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                {
                    "lang": "C++",
                    "langSlug": "cpp",
                    "code": "class Solution {\npublic:\n    string evolutionaryRecord(vector<int>& parents) {\n\n    }\n};",
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                    "code": "class Solution {\n    public String evolutionaryRecord(int[] parents) {\n\n    }\n}",
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                    "lang": "Python",
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                    "code": "class Solution(object):\n    def evolutionaryRecord(self, parents):\n        \"\"\"\n        :type parents: List[int]\n        :rtype: str\n        \"\"\"",
                    "__typename": "CodeSnippetNode"
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                    "code": "class Solution:\n    def evolutionaryRecord(self, parents: List[int]) -> str:",
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                    "code": "char* evolutionaryRecord(int* parents, int parentsSize){\n\n}",
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                    "code": "public class Solution {\n    public string EvolutionaryRecord(int[] parents) {\n\n    }\n}",
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                    "code": "/**\n * @param {number[]} parents\n * @return {string}\n */\nvar evolutionaryRecord = function(parents) {\n\n};",
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                    "code": "func evolutionaryRecord(parents []int) string {\n\n}",
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                    "code": "defmodule Solution do\n  @spec evolutionary_record(parents :: [integer]) :: String.t\n  def evolutionary_record(parents) do\n\n  end\nend",
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