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        "question": {
            "questionId": "731",
            "questionFrontendId": "731",
            "categoryTitle": "Algorithms",
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            "title": "My Calendar II",
            "titleSlug": "my-calendar-ii",
            "content": "<p>You are implementing a program to use as your calendar. We can add a new event if adding the event will not cause a <strong>triple booking</strong>.</p>\n\n<p>A <strong>triple booking</strong> happens when three events have some non-empty intersection (i.e., some moment is common to all the three events.).</p>\n\n<p>The event can be represented as a pair of integers <code>startTime</code> and <code>endTime</code> that represents a booking on the half-open interval <code>[startTime, endTime)</code>, the range of real numbers <code>x</code> such that <code>startTime &lt;= x &lt; endTime</code>.</p>\n\n<p>Implement the <code>MyCalendarTwo</code> class:</p>\n\n<ul>\n\t<li><code>MyCalendarTwo()</code> Initializes the calendar object.</li>\n\t<li><code>boolean book(int startTime, int endTime)</code> Returns <code>true</code> if the event can be added to the calendar successfully without causing a <strong>triple booking</strong>. Otherwise, return <code>false</code> and do not add the event to the calendar.</li>\n</ul>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input</strong>\n[&quot;MyCalendarTwo&quot;, &quot;book&quot;, &quot;book&quot;, &quot;book&quot;, &quot;book&quot;, &quot;book&quot;, &quot;book&quot;]\n[[], [10, 20], [50, 60], [10, 40], [5, 15], [5, 10], [25, 55]]\n<strong>Output</strong>\n[null, true, true, true, false, true, true]\n\n<strong>Explanation</strong>\nMyCalendarTwo myCalendarTwo = new MyCalendarTwo();\nmyCalendarTwo.book(10, 20); // return True, The event can be booked. \nmyCalendarTwo.book(50, 60); // return True, The event can be booked. \nmyCalendarTwo.book(10, 40); // return True, The event can be double booked. \nmyCalendarTwo.book(5, 15);  // return False, The event cannot be booked, because it would result in a triple booking.\nmyCalendarTwo.book(5, 10); // return True, The event can be booked, as it does not use time 10 which is already double booked.\nmyCalendarTwo.book(25, 55); // return True, The event can be booked, as the time in [25, 40) will be double booked with the third event, the time [40, 50) will be single booked, and the time [50, 55) will be double booked with the second event.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>0 &lt;= start &lt; end &lt;= 10<sup>9</sup></code></li>\n\t<li>At most <code>1000</code> calls will be made to <code>book</code>.</li>\n</ul>\n",
            "translatedTitle": "我的日程安排表 II",
            "translatedContent": "<p>实现一个程序来存放你的日程安排。如果要添加的时间内不会导致三重预订时，则可以存储这个新的日程安排。</p>\n\n<p>当三个日程安排有一些时间上的交叉时（例如三个日程安排都在同一时间内），就会产生 <strong>三重预订</strong>。</p>\n\n<p>事件能够用一对整数&nbsp;<code>startTime</code>&nbsp;和&nbsp;<code>endTime</code>&nbsp;表示，在一个半开区间的时间&nbsp;<code>[startTime, endTime)</code>&nbsp;上预定。实数&nbsp;<code>x</code> 的范围为&nbsp;&nbsp;<code>startTime &lt;= x &lt; endTime</code>。</p>\n\n<p>实现&nbsp;<code>MyCalendarTwo</code> 类：</p>\n\n<ul>\n\t<li><code>MyCalendarTwo()</code>&nbsp;初始化日历对象。</li>\n\t<li><code>boolean book(int startTime, int endTime)</code>&nbsp;如果可以将日程安排成功添加到日历中而不会导致三重预订，返回 <code>true</code>。否则，返回 <code>false</code> 并且不要将该日程安排添加到日历中。</li>\n</ul>\n\n<p>&nbsp;</p>\n\n<p><strong class=\"example\">示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>\n[\"MyCalendarTwo\", \"book\", \"book\", \"book\", \"book\", \"book\", \"book\"]\n[[], [10, 20], [50, 60], [10, 40], [5, 15], [5, 10], [25, 55]]\n<strong>输出：</strong>\n[null, true, true, true, false, true, true]\n\n<strong>解释：</strong>\nMyCalendarTwo myCalendarTwo = new MyCalendarTwo();\nmyCalendarTwo.book(10, 20); // 返回 True，能够预定该日程。\nmyCalendarTwo.book(50, 60); // 返回 True，能够预定该日程。\nmyCalendarTwo.book(10, 40); // 返回 True，该日程能够被重复预定。\nmyCalendarTwo.book(5, 15);  // 返回 False，该日程导致了三重预定，所以不能预定。\nmyCalendarTwo.book(5, 10); // 返回 True，能够预定该日程，因为它不使用已经双重预订的时间 10。\nmyCalendarTwo.book(25, 55); // 返回 True，能够预定该日程，因为时间段 [25, 40) 将被第三个日程重复预定，时间段 [40, 50) 将被单独预定，而时间段 [50, 55) 将被第二个日程重复预定。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>0 &lt;= start &lt; end &lt;= 10<sup>9</sup></code></li>\n\t<li>最多调用&nbsp;<code>book</code>&nbsp;1000 次。</li>\n</ul>\n",
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                    "lang": "C++",
                    "langSlug": "cpp",
                    "code": "class MyCalendarTwo {\npublic:\n    MyCalendarTwo() {\n        \n    }\n    \n    bool book(int startTime, int endTime) {\n        \n    }\n};\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * MyCalendarTwo* obj = new MyCalendarTwo();\n * bool param_1 = obj->book(startTime,endTime);\n */",
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                    "lang": "Java",
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                    "code": "class MyCalendarTwo {\n\n    public MyCalendarTwo() {\n        \n    }\n    \n    public boolean book(int startTime, int endTime) {\n        \n    }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * MyCalendarTwo obj = new MyCalendarTwo();\n * boolean param_1 = obj.book(startTime,endTime);\n */",
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                {
                    "lang": "Python",
                    "langSlug": "python",
                    "code": "class MyCalendarTwo(object):\n\n    def __init__(self):\n        \n\n    def book(self, startTime, endTime):\n        \"\"\"\n        :type startTime: int\n        :type endTime: int\n        :rtype: bool\n        \"\"\"\n        \n\n\n# Your MyCalendarTwo object will be instantiated and called as such:\n# obj = MyCalendarTwo()\n# param_1 = obj.book(startTime,endTime)",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Python3",
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                    "code": "class MyCalendarTwo:\n\n    def __init__(self):\n        \n\n    def book(self, startTime: int, endTime: int) -> bool:\n        \n\n\n# Your MyCalendarTwo object will be instantiated and called as such:\n# obj = MyCalendarTwo()\n# param_1 = obj.book(startTime,endTime)",
                    "__typename": "CodeSnippetNode"
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                    "lang": "C",
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                    "code": "\n\n\ntypedef struct {\n    \n} MyCalendarTwo;\n\n\nMyCalendarTwo* myCalendarTwoCreate() {\n    \n}\n\nbool myCalendarTwoBook(MyCalendarTwo* obj, int startTime, int endTime) {\n    \n}\n\nvoid myCalendarTwoFree(MyCalendarTwo* obj) {\n    \n}\n\n/**\n * Your MyCalendarTwo struct will be instantiated and called as such:\n * MyCalendarTwo* obj = myCalendarTwoCreate();\n * bool param_1 = myCalendarTwoBook(obj, startTime, endTime);\n \n * myCalendarTwoFree(obj);\n*/",
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                    "lang": "C#",
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                    "code": "public class MyCalendarTwo {\n\n    public MyCalendarTwo() {\n        \n    }\n    \n    public bool Book(int startTime, int endTime) {\n        \n    }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * MyCalendarTwo obj = new MyCalendarTwo();\n * bool param_1 = obj.Book(startTime,endTime);\n */",
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                {
                    "lang": "JavaScript",
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                    "code": "\nvar MyCalendarTwo = function() {\n    \n};\n\n/** \n * @param {number} startTime \n * @param {number} endTime\n * @return {boolean}\n */\nMyCalendarTwo.prototype.book = function(startTime, endTime) {\n    \n};\n\n/** \n * Your MyCalendarTwo object will be instantiated and called as such:\n * var obj = new MyCalendarTwo()\n * var param_1 = obj.book(startTime,endTime)\n */",
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                    "lang": "TypeScript",
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                    "code": "class MyCalendarTwo {\n    constructor() {\n        \n    }\n\n    book(startTime: number, endTime: number): boolean {\n        \n    }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * var obj = new MyCalendarTwo()\n * var param_1 = obj.book(startTime,endTime)\n */",
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                    "lang": "PHP",
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                    "code": "class MyCalendarTwo {\n    /**\n     */\n    function __construct() {\n        \n    }\n  \n    /**\n     * @param Integer $startTime\n     * @param Integer $endTime\n     * @return Boolean\n     */\n    function book($startTime, $endTime) {\n        \n    }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * $obj = MyCalendarTwo();\n * $ret_1 = $obj->book($startTime, $endTime);\n */",
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                    "lang": "Swift",
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                    "code": "\nclass MyCalendarTwo {\n\n    init() {\n        \n    }\n    \n    func book(_ startTime: Int, _ endTime: Int) -> Bool {\n        \n    }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * let obj = MyCalendarTwo()\n * let ret_1: Bool = obj.book(startTime, endTime)\n */",
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                    "lang": "Kotlin",
                    "langSlug": "kotlin",
                    "code": "class MyCalendarTwo() {\n\n    fun book(startTime: Int, endTime: Int): Boolean {\n        \n    }\n\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * var obj = MyCalendarTwo()\n * var param_1 = obj.book(startTime,endTime)\n */",
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                    "lang": "Dart",
                    "langSlug": "dart",
                    "code": "class MyCalendarTwo {\n\n  MyCalendarTwo() {\n    \n  }\n  \n  bool book(int startTime, int endTime) {\n    \n  }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * MyCalendarTwo obj = MyCalendarTwo();\n * bool param1 = obj.book(startTime,endTime);\n */",
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                    "lang": "Go",
                    "langSlug": "golang",
                    "code": "type MyCalendarTwo struct {\n    \n}\n\n\nfunc Constructor() MyCalendarTwo {\n    \n}\n\n\nfunc (this *MyCalendarTwo) Book(startTime int, endTime int) bool {\n    \n}\n\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * obj := Constructor();\n * param_1 := obj.Book(startTime,endTime);\n */",
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                    "lang": "Ruby",
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                    "code": "class MyCalendarTwo\n    def initialize()\n        \n    end\n\n\n=begin\n    :type start_time: Integer\n    :type end_time: Integer\n    :rtype: Boolean\n=end\n    def book(start_time, end_time)\n        \n    end\n\n\nend\n\n# Your MyCalendarTwo object will be instantiated and called as such:\n# obj = MyCalendarTwo.new()\n# param_1 = obj.book(start_time, end_time)",
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                    "lang": "Scala",
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                    "code": "class MyCalendarTwo() {\n\n    def book(startTime: Int, endTime: Int): Boolean = {\n        \n    }\n\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * val obj = new MyCalendarTwo()\n * val param_1 = obj.book(startTime,endTime)\n */",
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                    "lang": "Rust",
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                    "code": "struct MyCalendarTwo {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl MyCalendarTwo {\n\n    fn new() -> Self {\n        \n    }\n    \n    fn book(&self, start_time: i32, end_time: i32) -> bool {\n        \n    }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * let obj = MyCalendarTwo::new();\n * let ret_1: bool = obj.book(startTime, endTime);\n */",
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                    "code": "(define my-calendar-two%\n  (class object%\n    (super-new)\n    \n    (init-field)\n    \n    ; book : exact-integer? exact-integer? -> boolean?\n    (define/public (book start-time end-time)\n      )))\n\n;; Your my-calendar-two% object will be instantiated and called as such:\n;; (define obj (new my-calendar-two%))\n;; (define param_1 (send obj book start-time end-time))",
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                    "lang": "Erlang",
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                    "code": "-spec my_calendar_two_init_() -> any().\nmy_calendar_two_init_() ->\n  .\n\n-spec my_calendar_two_book(StartTime :: integer(), EndTime :: integer()) -> boolean().\nmy_calendar_two_book(StartTime, EndTime) ->\n  .\n\n\n%% Your functions will be called as such:\n%% my_calendar_two_init_(),\n%% Param_1 = my_calendar_two_book(StartTime, EndTime),\n\n%% my_calendar_two_init_ will be called before every test case, in which you can do some necessary initializations.",
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                    "code": "defmodule MyCalendarTwo do\n  @spec init_() :: any\n  def init_() do\n    \n  end\n\n  @spec book(start_time :: integer, end_time :: integer) :: boolean\n  def book(start_time, end_time) do\n    \n  end\nend\n\n# Your functions will be called as such:\n# MyCalendarTwo.init_()\n# param_1 = MyCalendarTwo.book(start_time, end_time)\n\n# MyCalendarTwo.init_ will be called before every test case, in which you can do some necessary initializations.",
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                    "code": "class MyCalendarTwo {\n    init() {\n\n    }\n    \n    func book(start: Int64, end: Int64): Bool {\n\n    }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * let obj: MyCalendarTwo = MyCalendarTwo()\n * let param_1 = obj.book(start,end)\n */",
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                "Store two sorted lists of intervals: one list will be all times that are at least single booked, and another list will be all times that are definitely double booked.  If none of the double bookings conflict, then the booking will succeed, and you should update your single and double bookings accordingly."
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<code>use-after-free<\\/code> \\u9519\\u8bef\\u3002<\\/p>\\r\\n\\r\\n<p>\\u4e3a\\u4e86\\u4f7f\\u7528\\u65b9\\u4fbf\\uff0c\\u5927\\u90e8\\u5206\\u6807\\u51c6\\u5e93\\u7684\\u5934\\u6587\\u4ef6\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8\\u5bfc\\u5165\\u3002<\\/p>\\r\\n\\r\\n<p>\\u5982\\u60f3\\u4f7f\\u7528\\u54c8\\u5e0c\\u8868\\u8fd0\\u7b97, \\u60a8\\u53ef\\u4ee5\\u4f7f\\u7528 <a href=\\\"https:\\/\\/troydhanson.github.io\\/uthash\\/\\\" target=\\\"_blank\\\">uthash<\\/a>\\u3002 \\\"uthash.h\\\"\\u5df2\\u7ecf\\u9ed8\\u8ba4\\u88ab\\u5bfc\\u5165\\u3002\\u8bf7\\u770b\\u5982\\u4e0b\\u793a\\u4f8b:<\\/p>\\r\\n\\r\\n<p><b>1. \\u5f80\\u54c8\\u5e0c\\u8868\\u4e2d\\u6dfb\\u52a0\\u4e00\\u4e2a\\u5bf9\\u8c61\\uff1a<\\/b>\\r\\n<pre>\\r\\nstruct hash_entry {\\r\\n    int id;            \\/* we'll use this field as the key *\\/\\r\\n    char name[10];\\r\\n    UT_hash_handle hh; \\/* makes this structure hashable *\\/\\r\\n};\\r\\n\\r\\nstruct hash_entry *users = NULL;\\r\\n\\r\\nvoid add_user(struct hash_entry 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\\u7b2c\\u4e09\\u65b9\\u5e93\\u3002<\\/p>\"],\"python3\":[\"Python3\",\"<p>\\u7248\\u672c\\uff1a<code>Python 3.11<\\/code><\\/p>\\r\\n\\r\\n<p>\\u4e3a\\u4e86\\u65b9\\u4fbf\\u8d77\\u89c1\\uff0c\\u5927\\u90e8\\u5206\\u5e38\\u7528\\u5e93\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8 \\u5bfc\\u5165\\uff0c\\u5982<a href=\\\"https:\\/\\/docs.python.org\\/3\\/library\\/array.html\\\" target=\\\"_blank\\\">array<\\/a>, <a href=\\\"https:\\/\\/docs.python.org\\/3\\/library\\/bisect.html\\\" target=\\\"_blank\\\">bisect<\\/a>, <a href=\\\"https:\\/\\/docs.python.org\\/3\\/library\\/collections.html\\\" target=\\\"_blank\\\">collections<\\/a>\\u3002 \\u5982\\u679c\\u60a8\\u9700\\u8981\\u4f7f\\u7528\\u5176\\u4ed6\\u5e93\\u51fd\\u6570\\uff0c\\u8bf7\\u81ea\\u884c\\u5bfc\\u5165\\u3002<\\/p>\\r\\n\\r\\n<p>\\u5982\\u9700\\u4f7f\\u7528 Map\\/TreeMap \\u6570\\u636e\\u7ed3\\u6784\\uff0c\\u60a8\\u53ef\\u4f7f\\u7528 <a href=\\\"http:\\/\\/www.grantjenks.com\\/docs\\/sortedcontainers\\/\\\" target=\\\"_blank\\\">sortedcontainers<\\/a> \\u5e93\\u3002<\\/p>\"],\"scala\":[\"Scala\",\"<p>\\u7248\\u672c\\uff1a<code>Scala 3.3.1<\\/code><\\/p>\"],\"kotlin\":[\"Kotlin\",\"<p>\\u7248\\u672c\\uff1a<code>Kotlin 1.9.0<\\/code><\\/p>\\r\\n\\r\\n<p>\\u6211\\u4eec\\u4f7f\\u7528\\u7684\\u662f JetBrains \\u63d0\\u4f9b\\u7684 experimental compiler\\u3002\\u5982\\u679c\\u60a8\\u8ba4\\u4e3a\\u60a8\\u9047\\u5230\\u4e86\\u7f16\\u8bd1\\u5668\\u76f8\\u5173\\u7684\\u95ee\\u9898\\uff0c\\u8bf7\\u5411\\u6211\\u4eec\\u53cd\\u9988<\\/p>\"],\"rust\":[\"Rust\",\"<p>\\u7248\\u672c\\uff1a<code>rust 1.79.0<\\/code><\\/p>\\r\\n\\r\\n<p>\\u652f\\u6301 crates.io \\u7684 <a href=\\\"https:\\/\\/crates.io\\/crates\\/rand\\\" target=\\\"_blank\\\">rand<\\/a> \\u548c <a href=\\\"https:\\/\\/crates.io\\/crates\\/regex\\\" target=\\\"_blank\\\">regex<\\/a><\\/p>\"],\"php\":[\"PHP\",\"<p><code>PHP 8.2<\\/code>.<\\/p>\\r\\n\\r\\n<p>With bcmath module.<\\/p>\"],\"typescript\":[\"TypeScript\",\"<p>TypeScript 5.1.6<\\/p>\\r\\n\\r\\n<p>Compile Options: --alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2022<\\/p>\\r\\n\\r\\n<p><a href=\\\"https:\\/\\/lodash.com\\\" target=\\\"_blank\\\">lodash.js<\\/a> \\u5e93\\u5df2\\u7ecf\\u9ed8\\u8ba4\\u88ab\\u5305\\u542b\\u3002<\\/p>\\r\\n\\r\\n<p> \\u5982\\u9700\\u4f7f\\u7528\\u961f\\u5217\\/\\u4f18\\u5148\\u961f\\u5217\\uff0c\\u60a8\\u53ef\\u4f7f\\u7528 <a href=\\\"https:\\/\\/github.com\\/datastructures-js\\/priority-queue\\/blob\\/v5\\/README.md\\\" target=\\\"_blank\\\"> datastructures-js\\/priority-queue@5.4.0<\\/a>\\uff0c<a href=\\\"https:\\/\\/github.com\\/datastructures-js\\/queue\\/tree\\/v4.2.3\\\" target=\\\"_blank\\\"> datastructures-js\\/queue@4.2.3<\\/a> \\u4ee5\\u53ca <a href=\\\"https:\\/\\/github.com\\/datastructures-js\\/deque\\/tree\\/v1.0.4\\\" target=\\\"_blank\\\"> datastructures-js\\/deque@1.0.4<\\/a>\\u3002<\\/p>\"],\"racket\":[\"Racket\",\"<p><a href=\\\"https:\\/\\/docs.racket-lang.org\\/guide\\/performance.html#%28tech._c%29\\\" target=\\\"_blank\\\">Racket CS<\\/a> v8.15<\\/p>\\r\\n\\r\\n<p>\\u4f7f\\u7528 #lang racket<\\/p>\\r\\n\\r\\n<p>\\u5df2\\u9884\\u5148 (require data\\/gvector data\\/queue data\\/order data\\/heap). \\u82e5\\u9700\\u4f7f\\u7528\\u5176\\u5b83\\u6570\\u636e\\u7ed3\\u6784\\uff0c\\u53ef\\u81ea\\u884c require\\u3002<\\/p>\"],\"erlang\":[\"Erlang\",\"Erlang\\/OTP 26\"],\"elixir\":[\"Elixir\",\"Elixir 1.17 with Erlang\\/OTP 26\"],\"dart\":[\"Dart\",\"<p>Dart 3.2\\u3002\\u60a8\\u53ef\\u4ee5\\u4f7f\\u7528 <a href=\\\"https:\\/\\/pub.dev\\/packages\\/collection\\/versions\\/1.18.0\\\" target=\\\"_blank\\\">collection<\\/a> \\u5305<\\/p>\\r\\n\\r\\n<p>\\u60a8\\u7684\\u4ee3\\u7801\\u5c06\\u4f1a\\u88ab\\u4e0d\\u7f16\\u8bd1\\u76f4\\u63a5\\u8fd0\\u884c<\\/p>\"],\"cangjie\":[\"Cangjie\",\"<p>\\u7248\\u672c\\uff1a0.53.11 (cjnative)<\\/p>\\r\\n\\r\\n<p>\\u7f16\\u8bd1\\u53c2\\u6570\\uff1a<code>-O2 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