{ "data": { "question": { "questionId": "3827", "questionFrontendId": "3508", "categoryTitle": "Algorithms", "boundTopicId": 3640673, "title": "Implement Router", "titleSlug": "implement-router", "content": "

Design a data structure that can efficiently manage data packets in a network router. Each data packet consists of the following attributes:

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Implement the Router class:

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Router(int memoryLimit): Initializes the Router object with a fixed memory limit.

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bool addPacket(int source, int destination, int timestamp): Adds a packet with the given attributes to the router.

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int[] forwardPacket(): Forwards the next packet in FIFO (First In First Out) order.

\n\n\n\n

int getCount(int destination, int startTime, int endTime):

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Note that queries for addPacket will be made in increasing order of timestamp.

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\n

Example 1:

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Input:
\n["Router", "addPacket", "addPacket", "addPacket", "addPacket", "addPacket", "forwardPacket", "addPacket", "getCount"]
\n[[3], [1, 4, 90], [2, 5, 90], [1, 4, 90], [3, 5, 95], [4, 5, 105], [], [5, 2, 110], [5, 100, 110]]

\n\n

Output:
\n[null, true, true, false, true, true, [2, 5, 90], true, 1]

\n\n

Explanation

\nRouter router = new Router(3); // Initialize Router with memoryLimit of 3.
\nrouter.addPacket(1, 4, 90); // Packet is added. Return True.
\nrouter.addPacket(2, 5, 90); // Packet is added. Return True.
\nrouter.addPacket(1, 4, 90); // This is a duplicate packet. Return False.
\nrouter.addPacket(3, 5, 95); // Packet is added. Return True
\nrouter.addPacket(4, 5, 105); // Packet is added, [1, 4, 90] is removed as number of packets exceeds memoryLimit. Return True.
\nrouter.forwardPacket(); // Return [2, 5, 90] and remove it from router.
\nrouter.addPacket(5, 2, 110); // Packet is added. Return True.
\nrouter.getCount(5, 100, 110); // The only packet with destination 5 and timestamp in the inclusive range [100, 110] is [4, 5, 105]. Return 1.
\n\n

Example 2:

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Input:
\n["Router", "addPacket", "forwardPacket", "forwardPacket"]
\n[[2], [7, 4, 90], [], []]

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Output:
\n[null, true, [7, 4, 90], []]

\n\n

Explanation

\nRouter router = new Router(2); // Initialize Router with memoryLimit of 2.
\nrouter.addPacket(7, 4, 90); // Return True.
\nrouter.forwardPacket(); // Return [7, 4, 90].
\nrouter.forwardPacket(); // There are no packets left, return [].
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "设计路由器", "translatedContent": "

请你设计一个数据结构来高效管理网络路由器中的数据包。每个数据包包含以下属性：

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实现 Router 类：

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Router(int memoryLimit)：初始化路由器对象，并设置固定的内存限制。

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bool addPacket(int source, int destination, int timestamp)：将具有给定属性的数据包添加到路由器。

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int[] forwardPacket()：以 FIFO（先进先出）顺序转发下一个数据包。

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int getCount(int destination, int startTime, int endTime)：

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注意：对于 addPacket 的查询会按照 timestamp 的递增顺序进行。

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示例 1：

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\n

输入：
\n[\"Router\", \"addPacket\", \"addPacket\", \"addPacket\", \"addPacket\", \"addPacket\", \"forwardPacket\", \"addPacket\", \"getCount\"]
\n[[3], [1, 4, 90], [2, 5, 90], [1, 4, 90], [3, 5, 95], [4, 5, 105], [], [5, 2, 110], [5, 100, 110]]

\n\n

输出：
\n[null, true, true, false, true, true, [2, 5, 90], true, 1]

\n\n

解释：

\nRouter router = new Router(3); // 初始化路由器，内存限制为 3。
\nrouter.addPacket(1, 4, 90); // 数据包被添加，返回 True。
\nrouter.addPacket(2, 5, 90); // 数据包被添加，返回 True。
\nrouter.addPacket(1, 4, 90); // 这是一个重复数据包，返回 False。
\nrouter.addPacket(3, 5, 95); // 数据包被添加，返回 True。
\nrouter.addPacket(4, 5, 105); // 数据包被添加，[1, 4, 90] 被移除，因为数据包数量超过限制，返回 True。
\nrouter.forwardPacket(); // 转发数据包 [2, 5, 90] 并将其从路由器中移除。
\nrouter.addPacket(5, 2, 110); // 数据包被添加，返回 True。
\nrouter.getCount(5, 100, 110); // 唯一目标地址为 5 且时间在 [100, 110] 范围内的数据包是 [4, 5, 105]，返回 1。
\n\n

示例 2：

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\n

输入：
\n[\"Router\", \"addPacket\", \"forwardPacket\", \"forwardPacket\"]
\n[[2], [7, 4, 90], [], []]

\n\n

输出：
\n[null, true, [7, 4, 90], []]

\n\n

解释：

\nRouter router = new Router(2); // 初始化路由器，内存限制为 2。
\nrouter.addPacket(7, 4, 90); // 返回 True。
\nrouter.forwardPacket(); // 返回 [7, 4, 90]。
\nrouter.forwardPacket(); // 没有数据包可以转发，返回 []。
\n\n

 

\n\n

提示：

\n\n\n", "isPaidOnly": false, "difficulty": "Medium", "likes": 2, "dislikes": 0, "isLiked": null, "similarQuestions": "[]", "contributors": [], "langToValidPlayground": "{\"cpp\": false, \"java\": false, \"python\": false, \"python3\": false, \"mysql\": false, \"mssql\": false, \"oraclesql\": false, \"c\": false, \"csharp\": false, \"javascript\": false, \"typescript\": false, \"bash\": false, \"php\": false, \"swift\": false, \"kotlin\": false, \"dart\": false, \"golang\": false, \"ruby\": false, \"scala\": false, \"html\": false, \"pythonml\": false, \"rust\": false, \"racket\": false, \"erlang\": false, \"elixir\": false, \"pythondata\": false, \"react\": false, \"vanillajs\": false, \"postgresql\": false, \"cangjie\": false}", "topicTags": [ { "name": "Design", "slug": "design", "translatedName": "设计", "__typename": "TopicTagNode" }, { "name": "Queue", "slug": "queue", "translatedName": "队列", "__typename": "TopicTagNode" }, { "name": "Array", "slug": "array", "translatedName": "数组", "__typename": "TopicTagNode" }, { "name": "Hash Table", "slug": "hash-table", "translatedName": "哈希表", "__typename": "TopicTagNode" }, { "name": "Binary Search", "slug": "binary-search", "translatedName": "二分查找", "__typename": "TopicTagNode" }, { "name": "Ordered Set", "slug": "ordered-set", "translatedName": "有序集合", "__typename": "TopicTagNode" } ], "companyTagStats": null, "codeSnippets": [ { "lang": "C++", "langSlug": "cpp", "code": "class Router {\npublic:\n Router(int memoryLimit) {\n \n }\n \n bool addPacket(int source, int destination, int timestamp) {\n \n }\n \n vector forwardPacket() {\n \n }\n \n int getCount(int destination, int startTime, int endTime) {\n \n }\n};\n\n/**\n * Your Router object will be instantiated and called as such:\n * Router* obj = new Router(memoryLimit);\n * bool param_1 = obj->addPacket(source,destination,timestamp);\n * vector param_2 = obj->forwardPacket();\n * int param_3 = obj->getCount(destination,startTime,endTime);\n */", "__typename": "CodeSnippetNode" }, { "lang": "Java", "langSlug": "java", "code": "class Router {\n\n public Router(int memoryLimit) {\n \n }\n \n public boolean addPacket(int source, int destination, int timestamp) {\n \n }\n \n public int[] forwardPacket() {\n \n }\n \n public int getCount(int destination, int startTime, int endTime) {\n \n }\n}\n\n/**\n * Your Router object will be instantiated and called as such:\n * Router obj = new Router(memoryLimit);\n * boolean param_1 = obj.addPacket(source,destination,timestamp);\n * int[] param_2 = obj.forwardPacket();\n * int param_3 = obj.getCount(destination,startTime,endTime);\n */", "__typename": "CodeSnippetNode" }, { "lang": "Python", "langSlug": "python", "code": "class Router(object):\n\n def __init__(self, memoryLimit):\n \"\"\"\n :type memoryLimit: int\n \"\"\"\n \n\n def addPacket(self, source, destination, timestamp):\n \"\"\"\n :type source: int\n :type destination: int\n :type timestamp: int\n :rtype: bool\n \"\"\"\n \n\n def forwardPacket(self):\n \"\"\"\n :rtype: List[int]\n \"\"\"\n \n\n def getCount(self, destination, startTime, endTime):\n \"\"\"\n :type destination: int\n :type startTime: int\n :type endTime: int\n :rtype: int\n \"\"\"\n \n\n\n# Your Router object will be instantiated and called as such:\n# obj = Router(memoryLimit)\n# param_1 = obj.addPacket(source,destination,timestamp)\n# param_2 = obj.forwardPacket()\n# param_3 = obj.getCount(destination,startTime,endTime)", "__typename": "CodeSnippetNode" }, { "lang": "Python3", "langSlug": "python3", "code": "class Router:\n\n def __init__(self, memoryLimit: int):\n \n\n def addPacket(self, source: int, destination: int, timestamp: int) -> bool:\n \n\n def forwardPacket(self) -> List[int]:\n \n\n def getCount(self, destination: int, startTime: int, endTime: int) -> int:\n \n\n\n# Your Router object will be instantiated and called as such:\n# obj = Router(memoryLimit)\n# param_1 = obj.addPacket(source,destination,timestamp)\n# param_2 = obj.forwardPacket()\n# param_3 = obj.getCount(destination,startTime,endTime)", "__typename": "CodeSnippetNode" }, { "lang": "C", "langSlug": "c", "code": "\n\n\ntypedef struct {\n \n} Router;\n\n\nRouter* routerCreate(int memoryLimit) {\n \n}\n\nbool routerAddPacket(Router* obj, int source, int destination, int timestamp) {\n \n}\n\nint* routerForwardPacket(Router* obj, int* retSize) {\n \n}\n\nint routerGetCount(Router* obj, int destination, int startTime, int endTime) {\n \n}\n\nvoid routerFree(Router* obj) {\n \n}\n\n/**\n * Your Router struct will be instantiated and called as such:\n * Router* obj = routerCreate(memoryLimit);\n * bool param_1 = routerAddPacket(obj, source, destination, timestamp);\n \n * int* param_2 = routerForwardPacket(obj, retSize);\n \n * int param_3 = routerGetCount(obj, destination, startTime, endTime);\n \n * routerFree(obj);\n*/", "__typename": "CodeSnippetNode" }, { "lang": "C#", "langSlug": "csharp", "code": "public class Router {\n\n public Router(int memoryLimit) {\n \n }\n \n public bool AddPacket(int source, int destination, int timestamp) {\n \n }\n \n public int[] ForwardPacket() {\n \n }\n \n public int GetCount(int destination, int startTime, int endTime) {\n \n }\n}\n\n/**\n * Your Router object will be instantiated and called as such:\n * Router obj = new Router(memoryLimit);\n * bool param_1 = obj.AddPacket(source,destination,timestamp);\n * int[] param_2 = obj.ForwardPacket();\n * int param_3 = obj.GetCount(destination,startTime,endTime);\n */", "__typename": "CodeSnippetNode" }, { "lang": "JavaScript", "langSlug": "javascript", "code": "/**\n * @param {number} memoryLimit\n */\nvar Router = function(memoryLimit) {\n \n};\n\n/** \n * @param {number} source \n * @param {number} destination \n * @param {number} timestamp\n * @return {boolean}\n */\nRouter.prototype.addPacket = function(source, destination, timestamp) {\n \n};\n\n/**\n * @return {number[]}\n */\nRouter.prototype.forwardPacket = function() {\n \n};\n\n/** \n * @param {number} destination \n * @param {number} startTime \n * @param {number} endTime\n * @return {number}\n */\nRouter.prototype.getCount = function(destination, startTime, endTime) {\n \n};\n\n/** \n * Your Router object will be instantiated and called as such:\n * var obj = new Router(memoryLimit)\n * var param_1 = obj.addPacket(source,destination,timestamp)\n * var param_2 = obj.forwardPacket()\n * var param_3 = obj.getCount(destination,startTime,endTime)\n */", "__typename": "CodeSnippetNode" }, { "lang": "TypeScript", "langSlug": "typescript", "code": "class Router {\n constructor(memoryLimit: number) {\n \n }\n\n addPacket(source: number, destination: number, timestamp: number): boolean {\n \n }\n\n forwardPacket(): number[] {\n \n }\n\n getCount(destination: number, startTime: number, endTime: number): number {\n \n }\n}\n\n/**\n * Your Router object will be instantiated and called as such:\n * var obj = new Router(memoryLimit)\n * var param_1 = obj.addPacket(source,destination,timestamp)\n * var param_2 = obj.forwardPacket()\n * var param_3 = obj.getCount(destination,startTime,endTime)\n */", "__typename": "CodeSnippetNode" }, { "lang": "PHP", "langSlug": "php", "code": "class Router {\n /**\n * @param Integer $memoryLimit\n */\n function __construct($memoryLimit) {\n \n }\n \n /**\n * @param Integer $source\n * @param Integer $destination\n * @param Integer $timestamp\n * @return Boolean\n */\n function addPacket($source, $destination, $timestamp) {\n \n }\n \n /**\n * @return Integer[]\n */\n function forwardPacket() {\n \n }\n \n /**\n * @param Integer $destination\n * @param Integer $startTime\n * @param Integer $endTime\n * @return Integer\n */\n function getCount($destination, $startTime, $endTime) {\n \n }\n}\n\n/**\n * Your Router object will be instantiated and called as such:\n * $obj = Router($memoryLimit);\n * $ret_1 = $obj->addPacket($source, $destination, $timestamp);\n * $ret_2 = $obj->forwardPacket();\n * $ret_3 = $obj->getCount($destination, $startTime, $endTime);\n */", "__typename": "CodeSnippetNode" }, { "lang": "Swift", "langSlug": "swift", "code": "\nclass Router {\n\n init(_ memoryLimit: Int) {\n \n }\n \n func addPacket(_ source: Int, _ destination: Int, _ timestamp: Int) -> Bool {\n \n }\n \n func forwardPacket() -> [Int] {\n \n }\n \n func getCount(_ destination: Int, _ startTime: Int, _ endTime: Int) -> Int {\n \n }\n}\n\n/**\n * Your Router object will be instantiated and called as such:\n * let obj = Router(memoryLimit)\n * let ret_1: Bool = obj.addPacket(source, destination, timestamp)\n * let ret_2: [Int] = obj.forwardPacket()\n * let ret_3: Int = obj.getCount(destination, startTime, endTime)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Kotlin", "langSlug": "kotlin", "code": "class Router(memoryLimit: Int) {\n\n fun addPacket(source: Int, destination: Int, timestamp: Int): Boolean {\n \n }\n\n fun forwardPacket(): IntArray {\n \n }\n\n fun getCount(destination: Int, startTime: Int, endTime: Int): Int {\n \n }\n\n}\n\n/**\n * Your Router object will be instantiated and called as such:\n * var obj = Router(memoryLimit)\n * var param_1 = obj.addPacket(source,destination,timestamp)\n * var param_2 = obj.forwardPacket()\n * var param_3 = obj.getCount(destination,startTime,endTime)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Dart", "langSlug": "dart", "code": "class Router {\n\n Router(int memoryLimit) {\n \n }\n \n bool addPacket(int source, int destination, int timestamp) {\n \n }\n \n List forwardPacket() {\n \n }\n \n int getCount(int destination, int startTime, int endTime) {\n \n }\n}\n\n/**\n * Your Router object will be instantiated and called as such:\n * Router obj = Router(memoryLimit);\n * bool param1 = obj.addPacket(source,destination,timestamp);\n * List param2 = obj.forwardPacket();\n * int param3 = obj.getCount(destination,startTime,endTime);\n */", "__typename": "CodeSnippetNode" }, { "lang": "Go", "langSlug": "golang", "code": "type Router struct {\n \n}\n\n\nfunc Constructor(memoryLimit int) Router {\n \n}\n\n\nfunc (this *Router) AddPacket(source int, destination int, timestamp int) bool {\n \n}\n\n\nfunc (this *Router) ForwardPacket() []int {\n \n}\n\n\nfunc (this *Router) GetCount(destination int, startTime int, endTime int) int {\n \n}\n\n\n/**\n * Your Router object will be instantiated and called as such:\n * obj := Constructor(memoryLimit);\n * param_1 := obj.AddPacket(source,destination,timestamp);\n * param_2 := obj.ForwardPacket();\n * param_3 := obj.GetCount(destination,startTime,endTime);\n */", "__typename": "CodeSnippetNode" }, { "lang": "Ruby", "langSlug": "ruby", "code": "class Router\n\n=begin\n :type memory_limit: Integer\n=end\n def initialize(memory_limit)\n \n end\n\n\n=begin\n :type source: Integer\n :type destination: Integer\n :type timestamp: Integer\n :rtype: Boolean\n=end\n def add_packet(source, destination, timestamp)\n \n end\n\n\n=begin\n :rtype: Integer[]\n=end\n def forward_packet()\n \n end\n\n\n=begin\n :type destination: Integer\n :type start_time: Integer\n :type end_time: Integer\n :rtype: Integer\n=end\n def get_count(destination, start_time, end_time)\n \n end\n\n\nend\n\n# Your Router object will be instantiated and called as such:\n# obj = Router.new(memory_limit)\n# param_1 = obj.add_packet(source, destination, timestamp)\n# param_2 = obj.forward_packet()\n# param_3 = obj.get_count(destination, start_time, end_time)", "__typename": "CodeSnippetNode" }, { "lang": "Scala", "langSlug": "scala", "code": "class Router(_memoryLimit: Int) {\n\n def addPacket(source: Int, destination: Int, timestamp: Int): Boolean = {\n \n }\n\n def forwardPacket(): Array[Int] = {\n \n }\n\n def getCount(destination: Int, startTime: Int, endTime: Int): Int = {\n \n }\n\n}\n\n/**\n * Your Router object will be instantiated and called as such:\n * val obj = new Router(memoryLimit)\n * val param_1 = obj.addPacket(source,destination,timestamp)\n * val param_2 = obj.forwardPacket()\n * val param_3 = obj.getCount(destination,startTime,endTime)\n */", "__typename": "CodeSnippetNode" }, { "lang": "Rust", "langSlug": "rust", "code": "struct Router {\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 Router {\n\n fn new(memoryLimit: i32) -> Self {\n \n }\n \n fn add_packet(&self, source: i32, destination: i32, timestamp: i32) -> bool {\n \n }\n \n fn forward_packet(&self) -> Vec {\n \n }\n \n fn get_count(&self, destination: i32, start_time: i32, end_time: i32) -> i32 {\n \n }\n}\n\n/**\n * Your Router object will be instantiated and called as such:\n * let obj = Router::new(memoryLimit);\n * let ret_1: bool = obj.add_packet(source, destination, timestamp);\n * let ret_2: Vec = obj.forward_packet();\n * let ret_3: i32 = obj.get_count(destination, startTime, endTime);\n */", "__typename": "CodeSnippetNode" }, { "lang": "Racket", "langSlug": "racket", "code": "(define router%\n (class object%\n (super-new)\n \n ; memory-limit : exact-integer?\n (init-field\n memory-limit)\n \n ; add-packet : exact-integer? exact-integer? exact-integer? -> boolean?\n (define/public (add-packet source destination timestamp)\n )\n ; forward-packet : -> (listof exact-integer?)\n (define/public (forward-packet)\n )\n ; get-count : exact-integer? exact-integer? exact-integer? -> exact-integer?\n (define/public (get-count destination start-time end-time)\n )))\n\n;; Your router% object will be instantiated and called as such:\n;; (define obj (new router% [memory-limit memory-limit]))\n;; (define param_1 (send obj add-packet source destination timestamp))\n;; (define param_2 (send obj forward-packet))\n;; (define param_3 (send obj get-count destination start-time end-time))", "__typename": "CodeSnippetNode" }, { "lang": "Erlang", "langSlug": "erlang", "code": "-spec router_init_(MemoryLimit :: integer()) -> any().\nrouter_init_(MemoryLimit) ->\n .\n\n-spec router_add_packet(Source :: integer(), Destination :: integer(), Timestamp :: integer()) -> boolean().\nrouter_add_packet(Source, Destination, Timestamp) ->\n .\n\n-spec router_forward_packet() -> [integer()].\nrouter_forward_packet() ->\n .\n\n-spec router_get_count(Destination :: integer(), StartTime :: integer(), EndTime :: integer()) -> integer().\nrouter_get_count(Destination, StartTime, EndTime) ->\n .\n\n\n%% Your functions will be called as such:\n%% router_init_(MemoryLimit),\n%% Param_1 = router_add_packet(Source, Destination, Timestamp),\n%% Param_2 = router_forward_packet(),\n%% Param_3 = router_get_count(Destination, StartTime, EndTime),\n\n%% router_init_ will be called before every test case, in which you can do some necessary initializations.", "__typename": "CodeSnippetNode" }, { "lang": "Elixir", "langSlug": "elixir", "code": "defmodule Router do\n @spec init_(memory_limit :: integer) :: any\n def init_(memory_limit) do\n \n end\n\n @spec add_packet(source :: integer, destination :: integer, timestamp :: integer) :: boolean\n def add_packet(source, destination, timestamp) do\n \n end\n\n @spec forward_packet() :: [integer]\n def forward_packet() do\n \n end\n\n @spec get_count(destination :: integer, start_time :: integer, end_time :: integer) :: integer\n def get_count(destination, start_time, end_time) do\n \n end\nend\n\n# Your functions will be called as such:\n# Router.init_(memory_limit)\n# param_1 = Router.add_packet(source, destination, timestamp)\n# param_2 = Router.forward_packet()\n# param_3 = Router.get_count(destination, start_time, end_time)\n\n# Router.init_ will be called before every test case, in which you can do some necessary initializations.", "__typename": "CodeSnippetNode" }, { "lang": "Cangjie", "langSlug": "cangjie", "code": "class Router {\n init(memoryLimit: Int64) {\n\n }\n \n func addPacket(source: Int64, destination: Int64, timestamp: Int64): Bool {\n\n }\n \n func forwardPacket(): Array {\n\n }\n \n func getCount(destination: Int64, startTime: Int64, endTime: Int64): Int64 {\n\n }\n}\n\n/**\n * Your Router object will be instantiated and called as such:\n * let obj: Router = Router(memoryLimit)\n * let param_1 = obj.addPacket(source,destination,timestamp)\n * let param_2 = obj.forwardPacket()\n * let param_3 = obj.getCount(destination,startTime,endTime)\n */", "__typename": "CodeSnippetNode" } ], "stats": "{\"totalAccepted\": \"1.7K\", \"totalSubmission\": \"7.5K\", \"totalAcceptedRaw\": 1742, \"totalSubmissionRaw\": 7458, \"acRate\": \"23.4%\"}", "hints": [ "A deque can simulate the adding and forwarding of packets efficiently.", "Use binary search for counting packets within a timestamp range." ], "solution": null, "status": null, "sampleTestCase": "[\"Router\",\"addPacket\",\"addPacket\",\"addPacket\",\"addPacket\",\"addPacket\",\"forwardPacket\",\"addPacket\",\"getCount\"]\n[[3],[1,4,90],[2,5,90],[1,4,90],[3,5,95],[4,5,105],[],[5,2,110],[5,100,110]]", "metaData": "{\n \"classname\": \"Router\",\n \"constructor\": {\n \"params\": [\n {\n \"name\": \"memoryLimit\",\n \"type\": \"integer\"\n }\n ]\n },\n \"methods\": [\n {\n \"params\": [\n {\n \"type\": \"integer\",\n \"name\": \"source\"\n },\n {\n \"type\": \"integer\",\n \"name\": \"destination\"\n },\n {\n \"type\": \"integer\",\n \"name\": \"timestamp\"\n }\n ],\n \"return\": {\n \"type\": \"boolean\"\n },\n \"name\": \"addPacket\"\n },\n {\n \"params\": [],\n \"name\": \"forwardPacket\",\n \"return\": {\n \"type\": \"integer[]\"\n }\n },\n {\n \"params\": [\n {\n \"type\": \"integer\",\n \"name\": \"destination\"\n },\n {\n \"type\": \"integer\",\n \"name\": \"startTime\"\n },\n {\n \"type\": \"integer\",\n \"name\": \"endTime\"\n }\n ],\n \"name\": \"getCount\",\n \"return\": {\n \"type\": \"integer\"\n }\n }\n ],\n \"return\": {\n \"type\": \"boolean\"\n },\n \"systemdesign\": true\n}", "judgerAvailable": true, "judgeType": "large", "mysqlSchemas": [], "enableRunCode": true, "envInfo": 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\\r\\nstruct hash_entry *find_user(int user_id) {\\r\\n    struct hash_entry *s;\\r\\n    HASH_FIND_INT(users, &user_id, s);\\r\\n    return s;\\r\\n}\\r\\n<\\/pre>\\r\\n<\\/p>\\r\\n\\r\\n
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\\r\\nvoid delete_user(struct hash_entry *user) {\\r\\n    HASH_DEL(users, user);  \\r\\n}\\r\\n<\\/pre>\\r\\n<\\/p>\"],\"csharp\":[\"C#\",\"
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\\u60a8\\u7684\\u4ee3\\u7801\\u5728\\u6267\\u884c\\u65f6\\u5c06\\u5e26\\u4e0a --harmony<\\/code> \\u6807\\u8bb0\\u6765\\u5f00\\u542f \\u65b0\\u7248ES6\\u7279\\u6027<\\/a>\\u3002<\\/p>\\r\\n\\r\\n
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\\u7248\\u672c\\uff1aGo 1.23<\\/code><\\/p>\\r\\n\\r\\n
\\u652f\\u6301 https:\\/\\/pkg.go.dev\\/github.com\\/emirpasic\\/gods@v1.18.1<\\/a> \\u548c https:\\/\\/pkg.go.dev\\/github.com\\/emirpasic\\/gods\\/v2@v2.0.0-alpha<\\/a> \\u7b2c\\u4e09\\u65b9\\u5e93\\u3002<\\/p>\"],\"python3\":[\"Python3\",\"
\\u7248\\u672c\\uff1aPython 3.11<\\/code><\\/p>\\r\\n\\r\\n
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\\u7248\\u672c\\uff1aScala 3.3.1<\\/code><\\/p>\"],\"kotlin\":[\"Kotlin\",\"
\\u7248\\u672c\\uff1aKotlin 2.1.10<\\/code><\\/p>\"],\"rust\":[\"Rust\",\"
\\u7248\\u672c\\uff1arust 1.85.0<\\/code><\\/p>\\r\\n\\r\\n
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PHP 8.2<\\/code>.<\\/p>\\r\\n\\r\\n
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Racket CS<\\/a> v8.15<\\/p>\\r\\n\\r\\n
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\\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\",\"
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\\u7248\\u672c\\uff1a0.53.11 (cjnative)<\\/p>\\r\\n\\r\\n
\\u7f16\\u8bd1\\u53c2\\u6570\\uff1a-O2 --disable-reflection<\\/code><\\/p>\\r\\n\\r\\n
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            "book": null,
            "isSubscribed": false,
            "isDailyQuestion": false,
            "dailyRecordStatus": null,
            "editorType": "CKEDITOR",
            "ugcQuestionId": null,
            "style": "LEETCODE",
            "exampleTestcases": "[\"Router\",\"addPacket\",\"addPacket\",\"addPacket\",\"addPacket\",\"addPacket\",\"forwardPacket\",\"addPacket\",\"getCount\"]\n[[3],[1,4,90],[2,5,90],[1,4,90],[3,5,95],[4,5,105],[],[5,2,110],[5,100,110]]\n[\"Router\",\"addPacket\",\"forwardPacket\",\"forwardPacket\"]\n[[2],[7,4,90],[],[]]",
            "__typename": "QuestionNode"
        }
    }
}