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leetcode-problemset/算法题(国外版)/all-oone-data-structure.json
2022-03-27 18:52:06 +08:00

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{
"data": {
"question": {
"questionId": "432",
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"title": "All O`one Data Structure",
"titleSlug": "all-oone-data-structure",
"content": "<p>Design a data structure to store the strings&#39; count with the ability to return the strings with minimum and maximum counts.</p>\n\n<p>Implement the <code>AllOne</code> class:</p>\n\n<ul>\n\t<li><code>AllOne()</code> Initializes the object of the data structure.</li>\n\t<li><code>inc(String key)</code> Increments the count of the string <code>key</code> by <code>1</code>. If <code>key</code> does not exist in the data structure, insert it with count <code>1</code>.</li>\n\t<li><code>dec(String key)</code> Decrements the count of the string <code>key</code> by <code>1</code>. If the count of <code>key</code> is <code>0</code> after the decrement, remove it from the data structure. It is guaranteed that <code>key</code> exists in the data structure before the decrement.</li>\n\t<li><code>getMaxKey()</code> Returns one of the keys with the maximal count. If no element exists, return an empty string <code>&quot;&quot;</code>.</li>\n\t<li><code>getMinKey()</code> Returns one of the keys with the minimum count. If no element exists, return an empty string <code>&quot;&quot;</code>.</li>\n</ul>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input</strong>\n[&quot;AllOne&quot;, &quot;inc&quot;, &quot;inc&quot;, &quot;getMaxKey&quot;, &quot;getMinKey&quot;, &quot;inc&quot;, &quot;getMaxKey&quot;, &quot;getMinKey&quot;]\n[[], [&quot;hello&quot;], [&quot;hello&quot;], [], [], [&quot;leet&quot;], [], []]\n<strong>Output</strong>\n[null, null, null, &quot;hello&quot;, &quot;hello&quot;, null, &quot;hello&quot;, &quot;leet&quot;]\n\n<strong>Explanation</strong>\nAllOne allOne = new AllOne();\nallOne.inc(&quot;hello&quot;);\nallOne.inc(&quot;hello&quot;);\nallOne.getMaxKey(); // return &quot;hello&quot;\nallOne.getMinKey(); // return &quot;hello&quot;\nallOne.inc(&quot;leet&quot;);\nallOne.getMaxKey(); // return &quot;hello&quot;\nallOne.getMinKey(); // return &quot;leet&quot;\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= key.length &lt;= 10</code></li>\n\t<li><code>key</code> consists of lowercase English letters.</li>\n\t<li>It is guaranteed that for each call to <code>dec</code>, <code>key</code> is existing in the data structure.</li>\n\t<li>At most <code>5 * 10<sup>4</sup></code>&nbsp;calls will be made to <code>inc</code>, <code>dec</code>, <code>getMaxKey</code>, and <code>getMinKey</code>.</li>\n</ul>\n",
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"lang": "C++",
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"code": "class AllOne {\npublic:\n AllOne() {\n \n }\n \n void inc(string key) {\n \n }\n \n void dec(string key) {\n \n }\n \n string getMaxKey() {\n \n }\n \n string getMinKey() {\n \n }\n};\n\n/**\n * Your AllOne object will be instantiated and called as such:\n * AllOne* obj = new AllOne();\n * obj->inc(key);\n * obj->dec(key);\n * string param_3 = obj->getMaxKey();\n * string param_4 = obj->getMinKey();\n */",
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"lang": "Java",
"langSlug": "java",
"code": "class AllOne {\n\n public AllOne() {\n \n }\n \n public void inc(String key) {\n \n }\n \n public void dec(String key) {\n \n }\n \n public String getMaxKey() {\n \n }\n \n public String getMinKey() {\n \n }\n}\n\n/**\n * Your AllOne object will be instantiated and called as such:\n * AllOne obj = new AllOne();\n * obj.inc(key);\n * obj.dec(key);\n * String param_3 = obj.getMaxKey();\n * String param_4 = obj.getMinKey();\n */",
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"lang": "Python",
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"code": "class AllOne(object):\n\n def __init__(self):\n \n\n def inc(self, key):\n \"\"\"\n :type key: str\n :rtype: None\n \"\"\"\n \n\n def dec(self, key):\n \"\"\"\n :type key: str\n :rtype: None\n \"\"\"\n \n\n def getMaxKey(self):\n \"\"\"\n :rtype: str\n \"\"\"\n \n\n def getMinKey(self):\n \"\"\"\n :rtype: str\n \"\"\"\n \n\n\n# Your AllOne object will be instantiated and called as such:\n# obj = AllOne()\n# obj.inc(key)\n# obj.dec(key)\n# param_3 = obj.getMaxKey()\n# param_4 = obj.getMinKey()",
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"lang": "Python3",
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"code": "class AllOne:\n\n def __init__(self):\n \n\n def inc(self, key: str) -> None:\n \n\n def dec(self, key: str) -> None:\n \n\n def getMaxKey(self) -> str:\n \n\n def getMinKey(self) -> str:\n \n\n\n# Your AllOne object will be instantiated and called as such:\n# obj = AllOne()\n# obj.inc(key)\n# obj.dec(key)\n# param_3 = obj.getMaxKey()\n# param_4 = obj.getMinKey()",
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"lang": "C",
"langSlug": "c",
"code": "\n\n\ntypedef struct {\n \n} AllOne;\n\n\nAllOne* allOneCreate() {\n \n}\n\nvoid allOneInc(AllOne* obj, char * key) {\n \n}\n\nvoid allOneDec(AllOne* obj, char * key) {\n \n}\n\nchar * allOneGetMaxKey(AllOne* obj) {\n \n}\n\nchar * allOneGetMinKey(AllOne* obj) {\n \n}\n\nvoid allOneFree(AllOne* obj) {\n \n}\n\n/**\n * Your AllOne struct will be instantiated and called as such:\n * AllOne* obj = allOneCreate();\n * allOneInc(obj, key);\n \n * allOneDec(obj, key);\n \n * char * param_3 = allOneGetMaxKey(obj);\n \n * char * param_4 = allOneGetMinKey(obj);\n \n * allOneFree(obj);\n*/",
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"lang": "C#",
"langSlug": "csharp",
"code": "public class AllOne {\n\n public AllOne() {\n \n }\n \n public void Inc(string key) {\n \n }\n \n public void Dec(string key) {\n \n }\n \n public string GetMaxKey() {\n \n }\n \n public string GetMinKey() {\n \n }\n}\n\n/**\n * Your AllOne object will be instantiated and called as such:\n * AllOne obj = new AllOne();\n * obj.Inc(key);\n * obj.Dec(key);\n * string param_3 = obj.GetMaxKey();\n * string param_4 = obj.GetMinKey();\n */",
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"lang": "JavaScript",
"langSlug": "javascript",
"code": "\nvar AllOne = function() {\n \n};\n\n/** \n * @param {string} key\n * @return {void}\n */\nAllOne.prototype.inc = function(key) {\n \n};\n\n/** \n * @param {string} key\n * @return {void}\n */\nAllOne.prototype.dec = function(key) {\n \n};\n\n/**\n * @return {string}\n */\nAllOne.prototype.getMaxKey = function() {\n \n};\n\n/**\n * @return {string}\n */\nAllOne.prototype.getMinKey = function() {\n \n};\n\n/** \n * Your AllOne object will be instantiated and called as such:\n * var obj = new AllOne()\n * obj.inc(key)\n * obj.dec(key)\n * var param_3 = obj.getMaxKey()\n * var param_4 = obj.getMinKey()\n */",
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"lang": "Ruby",
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"code": "class AllOne\n def initialize()\n \n end\n\n\n=begin\n :type key: String\n :rtype: Void\n=end\n def inc(key)\n \n end\n\n\n=begin\n :type key: String\n :rtype: Void\n=end\n def dec(key)\n \n end\n\n\n=begin\n :rtype: String\n=end\n def get_max_key()\n \n end\n\n\n=begin\n :rtype: String\n=end\n def get_min_key()\n \n end\n\n\nend\n\n# Your AllOne object will be instantiated and called as such:\n# obj = AllOne.new()\n# obj.inc(key)\n# obj.dec(key)\n# param_3 = obj.get_max_key()\n# param_4 = obj.get_min_key()",
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"lang": "Swift",
"langSlug": "swift",
"code": "\nclass AllOne {\n\n init() {\n \n }\n \n func inc(_ key: String) {\n \n }\n \n func dec(_ key: String) {\n \n }\n \n func getMaxKey() -> String {\n \n }\n \n func getMinKey() -> String {\n \n }\n}\n\n/**\n * Your AllOne object will be instantiated and called as such:\n * let obj = AllOne()\n * obj.inc(key)\n * obj.dec(key)\n * let ret_3: String = obj.getMaxKey()\n * let ret_4: String = obj.getMinKey()\n */",
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"lang": "Go",
"langSlug": "golang",
"code": "type AllOne struct {\n \n}\n\n\nfunc Constructor() AllOne {\n \n}\n\n\nfunc (this *AllOne) Inc(key string) {\n \n}\n\n\nfunc (this *AllOne) Dec(key string) {\n \n}\n\n\nfunc (this *AllOne) GetMaxKey() string {\n \n}\n\n\nfunc (this *AllOne) GetMinKey() string {\n \n}\n\n\n/**\n * Your AllOne object will be instantiated and called as such:\n * obj := Constructor();\n * obj.Inc(key);\n * obj.Dec(key);\n * param_3 := obj.GetMaxKey();\n * param_4 := obj.GetMinKey();\n */",
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"lang": "Scala",
"langSlug": "scala",
"code": "class AllOne() {\n\n def inc(key: String) {\n \n }\n\n def dec(key: String) {\n \n }\n\n def getMaxKey(): String = {\n \n }\n\n def getMinKey(): String = {\n \n }\n\n}\n\n/**\n * Your AllOne object will be instantiated and called as such:\n * var obj = new AllOne()\n * obj.inc(key)\n * obj.dec(key)\n * var param_3 = obj.getMaxKey()\n * var param_4 = obj.getMinKey()\n */",
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"lang": "Kotlin",
"langSlug": "kotlin",
"code": "class AllOne() {\n\n fun inc(key: String) {\n \n }\n\n fun dec(key: String) {\n \n }\n\n fun getMaxKey(): String {\n \n }\n\n fun getMinKey(): String {\n \n }\n\n}\n\n/**\n * Your AllOne object will be instantiated and called as such:\n * var obj = AllOne()\n * obj.inc(key)\n * obj.dec(key)\n * var param_3 = obj.getMaxKey()\n * var param_4 = obj.getMinKey()\n */",
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"lang": "Rust",
"langSlug": "rust",
"code": "struct AllOne {\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 AllOne {\n\n fn new() -> Self {\n \n }\n \n fn inc(&self, key: String) {\n \n }\n \n fn dec(&self, key: String) {\n \n }\n \n fn get_max_key(&self) -> String {\n \n }\n \n fn get_min_key(&self) -> String {\n \n }\n}\n\n/**\n * Your AllOne object will be instantiated and called as such:\n * let obj = AllOne::new();\n * obj.inc(key);\n * obj.dec(key);\n * let ret_3: String = obj.get_max_key();\n * let ret_4: String = obj.get_min_key();\n */",
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"lang": "PHP",
"langSlug": "php",
"code": "class AllOne {\n /**\n */\n function __construct() {\n \n }\n \n /**\n * @param String $key\n * @return NULL\n */\n function inc($key) {\n \n }\n \n /**\n * @param String $key\n * @return NULL\n */\n function dec($key) {\n \n }\n \n /**\n * @return String\n */\n function getMaxKey() {\n \n }\n \n /**\n * @return String\n */\n function getMinKey() {\n \n }\n}\n\n/**\n * Your AllOne object will be instantiated and called as such:\n * $obj = AllOne();\n * $obj->inc($key);\n * $obj->dec($key);\n * $ret_3 = $obj->getMaxKey();\n * $ret_4 = $obj->getMinKey();\n */",
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"lang": "TypeScript",
"langSlug": "typescript",
"code": "class AllOne {\n constructor() {\n\n }\n\n inc(key: string): void {\n\n }\n\n dec(key: string): void {\n\n }\n\n getMaxKey(): string {\n\n }\n\n getMinKey(): string {\n\n }\n}\n\n/**\n * Your AllOne object will be instantiated and called as such:\n * var obj = new AllOne()\n * obj.inc(key)\n * obj.dec(key)\n * var param_3 = obj.getMaxKey()\n * var param_4 = obj.getMinKey()\n */",
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"lang": "Racket",
"langSlug": "racket",
"code": "(define all-one%\n (class object%\n (super-new)\n (init-field)\n \n ; inc : string? -> void?\n (define/public (inc key)\n\n )\n ; dec : string? -> void?\n (define/public (dec key)\n\n )\n ; get-max-key : -> string?\n (define/public (get-max-key)\n\n )\n ; get-min-key : -> string?\n (define/public (get-min-key)\n\n )))\n\n;; Your all-one% object will be instantiated and called as such:\n;; (define obj (new all-one%))\n;; (send obj inc key)\n;; (send obj dec key)\n;; (define param_3 (send obj get-max-key))\n;; (define param_4 (send obj get-min-key))",
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"lang": "Erlang",
"langSlug": "erlang",
"code": "-spec all_one_init_() -> any().\nall_one_init_() ->\n .\n\n-spec all_one_inc(Key :: unicode:unicode_binary()) -> any().\nall_one_inc(Key) ->\n .\n\n-spec all_one_dec(Key :: unicode:unicode_binary()) -> any().\nall_one_dec(Key) ->\n .\n\n-spec all_one_get_max_key() -> unicode:unicode_binary().\nall_one_get_max_key() ->\n .\n\n-spec all_one_get_min_key() -> unicode:unicode_binary().\nall_one_get_min_key() ->\n .\n\n\n%% Your functions will be called as such:\n%% all_one_init_(),\n%% all_one_inc(Key),\n%% all_one_dec(Key),\n%% Param_3 = all_one_get_max_key(),\n%% Param_4 = all_one_get_min_key(),\n\n%% all_one_init_ will be called before every test case, in which you can do some necessary initializations.",
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"lang": "Elixir",
"langSlug": "elixir",
"code": "defmodule AllOne do\n @spec init_() :: any\n def init_() do\n\n end\n\n @spec inc(key :: String.t) :: any\n def inc(key) do\n\n end\n\n @spec dec(key :: String.t) :: any\n def dec(key) do\n\n end\n\n @spec get_max_key() :: String.t\n def get_max_key() do\n\n end\n\n @spec get_min_key() :: String.t\n def get_min_key() do\n\n end\nend\n\n# Your functions will be called as such:\n# AllOne.init_()\n# AllOne.inc(key)\n# AllOne.dec(key)\n# param_3 = AllOne.get_max_key()\n# param_4 = AllOne.get_min_key()\n\n# AllOne.init_ will be called before every test case, in which you can do some necessary initializations.",
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"sampleTestCase": "[\"AllOne\",\"inc\",\"inc\",\"getMaxKey\",\"getMinKey\",\"inc\",\"getMaxKey\",\"getMinKey\"]\n[[],[\"hello\"],[\"hello\"],[],[],[\"leet\"],[],[]]",
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"envInfo": "{\"cpp\": [\"C++\", \"<p>Compiled with <code> clang 11 </code> using the latest C++ 17 standard.</p>\\r\\n\\r\\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\\\"https://github.com/google/sanitizers/wiki/AddressSanitizer\\\" target=\\\"_blank\\\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\"], \"java\": [\"Java\", \"<p><code> OpenJDK 17 </code>. Java 8 features such as lambda expressions and stream API can be used. </p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>\"], \"python\": [\"Python\", \"<p><code>Python 2.7.12</code>.</p>\\r\\n\\r\\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\\\"https://docs.python.org/2/library/array.html\\\" target=\\\"_blank\\\">array</a>, <a href=\\\"https://docs.python.org/2/library/bisect.html\\\" target=\\\"_blank\\\">bisect</a>, <a href=\\\"https://docs.python.org/2/library/collections.html\\\" target=\\\"_blank\\\">collections</a>. If you need more libraries, you can import it yourself.</p>\\r\\n\\r\\n<p>For Map/TreeMap data structure, you may use <a href=\\\"http://www.grantjenks.com/docs/sortedcontainers/\\\" target=\\\"_blank\\\">sortedcontainers</a> library.</p>\\r\\n\\r\\n<p>Note that Python 2.7 <a href=\\\"https://www.python.org/dev/peps/pep-0373/\\\" target=\\\"_blank\\\">will not be maintained past 2020</a>. For the latest Python, please choose Python3 instead.</p>\"], \"c\": [\"C\", \"<p>Compiled with <code>gcc 8.2</code> using the gnu99 standard.</p>\\r\\n\\r\\n<p>Your code is compiled with level one optimization (<code>-O1</code>). <a href=\\\"https://github.com/google/sanitizers/wiki/AddressSanitizer\\\" target=\\\"_blank\\\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\\r\\n\\r\\n<p>Most standard library headers are already included automatically for your convenience.</p>\\r\\n\\r\\n<p>For hash table operations, you may use <a href=\\\"https://troydhanson.github.io/uthash/\\\" target=\\\"_blank\\\">uthash</a>. \\\"uthash.h\\\" is included by default. Below are some examples:</p>\\r\\n\\r\\n<p><b>1. Adding an item to a hash.</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 *s) {\\r\\n HASH_ADD_INT(users, id, s);\\r\\n}\\r\\n</pre>\\r\\n</p>\\r\\n\\r\\n<p><b>2. Looking up an item in a hash:</b>\\r\\n<pre>\\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<p><b>3. Deleting an item in a hash:</b>\\r\\n<pre>\\r\\nvoid delete_user(struct hash_entry *user) {\\r\\n HASH_DEL(users, user); \\r\\n}\\r\\n</pre>\\r\\n</p>\"], \"csharp\": [\"C#\", \"<p><a href=\\\"https://docs.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-9\\\" target=\\\"_blank\\\">C# 10 with .NET 6 runtime</a></p>\\r\\n\\r\\n<p>Your code is compiled with debug flag enabled (<code>/debug</code>).</p>\"], \"javascript\": [\"JavaScript\", \"<p><code>Node.js 16.13.2</code>.</p>\\r\\n\\r\\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\\\"http://node.green/\\\" target=\\\"_blank\\\">new ES6 features</a>.</p>\\r\\n\\r\\n<p><a href=\\\"https://lodash.com\\\" target=\\\"_blank\\\">lodash.js</a> library is included by default.</p>\\r\\n\\r\\n<p>For Priority Queue / Queue data structures, you may use <a href=\\\"https://github.com/datastructures-js/priority-queue\\\" target=\\\"_blank\\\">datastructures-js/priority-queue</a> and <a href=\\\"https://github.com/datastructures-js/queue\\\" target=\\\"_blank\\\">datastructures-js/queue</a>.</p>\"], \"ruby\": [\"Ruby\", \"<p><code>Ruby 3.1</code></p>\\r\\n\\r\\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>\"], \"swift\": [\"Swift\", \"<p><code>Swift 5.5.2</code>.</p>\"], \"golang\": [\"Go\", \"<p><code>Go 1.17.6</code>.</p>\\r\\n\\r\\n<p>Support <a href=\\\"https://godoc.org/github.com/emirpasic/gods\\\" target=\\\"_blank\\\">https://godoc.org/github.com/emirpasic/gods</a> library.</p>\"], \"python3\": [\"Python3\", \"<p><code>Python 3.10</code>.</p>\\r\\n\\r\\n<p>Most libraries are already imported automatically for your convenience, such as <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>. If you need more libraries, you can import it yourself.</p>\\r\\n\\r\\n<p>For Map/TreeMap data structure, you may use <a href=\\\"http://www.grantjenks.com/docs/sortedcontainers/\\\" target=\\\"_blank\\\">sortedcontainers</a> library.</p>\"], \"scala\": [\"Scala\", \"<p><code>Scala 2.13.7</code>.</p>\"], \"kotlin\": [\"Kotlin\", \"<p><code>Kotlin 1.3.10</code>.</p>\"], \"rust\": [\"Rust\", \"<p><code>Rust 1.58.1</code></p>\\r\\n\\r\\n<p>Supports <a href=\\\"https://crates.io/crates/rand\\\" target=\\\"_blank\\\">rand </a> v0.6\\u00a0from crates.io</p>\"], \"php\": [\"PHP\", \"<p><code>PHP 8.1</code>.</p>\\r\\n<p>With bcmath module</p>\"], \"typescript\": [\"Typescript\", \"<p><code>TypeScript 4.5.4, Node.js 16.13.2</code>.</p>\\r\\n\\r\\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\\\"http://node.green/\\\" target=\\\"_blank\\\">new ES2020 features</a>.</p>\\r\\n\\r\\n<p><a href=\\\"https://lodash.com\\\" target=\\\"_blank\\\">lodash.js</a> library is included by default.</p>\"], \"racket\": [\"Racket\", \"<p>Run with <code>Racket 8.3</code>.</p>\"], \"erlang\": [\"Erlang\", \"Erlang/OTP 24.2\"], \"elixir\": [\"Elixir\", \"Elixir 1.13.0 with Erlang/OTP 24.2\"]}",
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