{
    "data": {
        "question": {
            "questionId": "1572",
            "questionFrontendId": "1476",
            "boundTopicId": null,
            "title": "Subrectangle Queries",
            "titleSlug": "subrectangle-queries",
            "content": "<p>Implement the class <code>SubrectangleQueries</code>&nbsp;which receives a <code>rows x cols</code> rectangle as a matrix of integers in the constructor and supports two methods:</p>\n\n<p>1.<code>&nbsp;updateSubrectangle(int row1, int col1, int row2, int col2, int newValue)</code></p>\n\n<ul>\n\t<li>Updates all values with <code>newValue</code> in the subrectangle whose upper left coordinate is <code>(row1,col1)</code> and bottom right coordinate is <code>(row2,col2)</code>.</li>\n</ul>\n\n<p>2.<code>&nbsp;getValue(int row, int col)</code></p>\n\n<ul>\n\t<li>Returns the current value of the coordinate <code>(row,col)</code> from&nbsp;the rectangle.</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;SubrectangleQueries&quot;,&quot;getValue&quot;,&quot;updateSubrectangle&quot;,&quot;getValue&quot;,&quot;getValue&quot;,&quot;updateSubrectangle&quot;,&quot;getValue&quot;,&quot;getValue&quot;]\n[[[[1,2,1],[4,3,4],[3,2,1],[1,1,1]]],[0,2],[0,0,3,2,5],[0,2],[3,1],[3,0,3,2,10],[3,1],[0,2]]\n<strong>Output</strong>\n[null,1,null,5,5,null,10,5]\n<strong>Explanation</strong>\nSubrectangleQueries subrectangleQueries = new SubrectangleQueries([[1,2,1],[4,3,4],[3,2,1],[1,1,1]]);  \n// The initial rectangle (4x3) looks like:\n// 1 2 1\n// 4 3 4\n// 3 2 1\n// 1 1 1\nsubrectangleQueries.getValue(0, 2); // return 1\nsubrectangleQueries.updateSubrectangle(0, 0, 3, 2, 5);\n// After this update the rectangle looks like:\n// 5 5 5\n// 5 5 5\n// 5 5 5\n// 5 5 5 \nsubrectangleQueries.getValue(0, 2); // return 5\nsubrectangleQueries.getValue(3, 1); // return 5\nsubrectangleQueries.updateSubrectangle(3, 0, 3, 2, 10);\n// After this update the rectangle looks like:\n// 5   5   5\n// 5   5   5\n// 5   5   5\n// 10  10  10 \nsubrectangleQueries.getValue(3, 1); // return 10\nsubrectangleQueries.getValue(0, 2); // return 5\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input</strong>\n[&quot;SubrectangleQueries&quot;,&quot;getValue&quot;,&quot;updateSubrectangle&quot;,&quot;getValue&quot;,&quot;getValue&quot;,&quot;updateSubrectangle&quot;,&quot;getValue&quot;]\n[[[[1,1,1],[2,2,2],[3,3,3]]],[0,0],[0,0,2,2,100],[0,0],[2,2],[1,1,2,2,20],[2,2]]\n<strong>Output</strong>\n[null,1,null,100,100,null,20]\n<strong>Explanation</strong>\nSubrectangleQueries subrectangleQueries = new SubrectangleQueries([[1,1,1],[2,2,2],[3,3,3]]);\nsubrectangleQueries.getValue(0, 0); // return 1\nsubrectangleQueries.updateSubrectangle(0, 0, 2, 2, 100);\nsubrectangleQueries.getValue(0, 0); // return 100\nsubrectangleQueries.getValue(2, 2); // return 100\nsubrectangleQueries.updateSubrectangle(1, 1, 2, 2, 20);\nsubrectangleQueries.getValue(2, 2); // return 20\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li>There will be at most <code><font face=\"monospace\">500</font></code>&nbsp;operations considering both methods:&nbsp;<code>updateSubrectangle</code> and <code>getValue</code>.</li>\n\t<li><code>1 &lt;= rows, cols &lt;= 100</code></li>\n\t<li><code>rows ==&nbsp;rectangle.length</code></li>\n\t<li><code>cols == rectangle[i].length</code></li>\n\t<li><code>0 &lt;= row1 &lt;= row2 &lt; rows</code></li>\n\t<li><code>0 &lt;= col1 &lt;= col2 &lt; cols</code></li>\n\t<li><code>1 &lt;= newValue, rectangle[i][j] &lt;= 10^9</code></li>\n\t<li><code>0 &lt;= row &lt; rows</code></li>\n\t<li><code>0 &lt;= col &lt; cols</code></li>\n</ul>\n",
            "translatedTitle": null,
            "translatedContent": null,
            "isPaidOnly": false,
            "difficulty": "Medium",
            "likes": 593,
            "dislikes": 1402,
            "isLiked": null,
            "similarQuestions": "[]",
            "exampleTestcases": "[\"SubrectangleQueries\",\"getValue\",\"updateSubrectangle\",\"getValue\",\"getValue\",\"updateSubrectangle\",\"getValue\",\"getValue\"]\r\n[[[[1,2,1],[4,3,4],[3,2,1],[1,1,1]]],[0,2],[0,0,3,2,5],[0,2],[3,1],[3,0,3,2,10],[3,1],[0,2]]\r\n[\"SubrectangleQueries\",\"getValue\",\"updateSubrectangle\",\"getValue\",\"getValue\",\"updateSubrectangle\",\"getValue\"]\r\n[[[[1,1,1],[2,2,2],[3,3,3]]],[0,0],[0,0,2,2,100],[0,0],[2,2],[1,1,2,2,20],[2,2]]\r",
            "categoryTitle": "Algorithms",
            "contributors": [],
            "topicTags": [
                {
                    "name": "Array",
                    "slug": "array",
                    "translatedName": null,
                    "__typename": "TopicTagNode"
                },
                {
                    "name": "Design",
                    "slug": "design",
                    "translatedName": null,
                    "__typename": "TopicTagNode"
                },
                {
                    "name": "Matrix",
                    "slug": "matrix",
                    "translatedName": null,
                    "__typename": "TopicTagNode"
                }
            ],
            "companyTagStats": null,
            "codeSnippets": [
                {
                    "lang": "C++",
                    "langSlug": "cpp",
                    "code": "class SubrectangleQueries {\npublic:\n    SubrectangleQueries(vector<vector<int>>& rectangle) {\n        \n    }\n    \n    void updateSubrectangle(int row1, int col1, int row2, int col2, int newValue) {\n        \n    }\n    \n    int getValue(int row, int col) {\n        \n    }\n};\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * SubrectangleQueries* obj = new SubrectangleQueries(rectangle);\n * obj->updateSubrectangle(row1,col1,row2,col2,newValue);\n * int param_2 = obj->getValue(row,col);\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Java",
                    "langSlug": "java",
                    "code": "class SubrectangleQueries {\n\n    public SubrectangleQueries(int[][] rectangle) {\n        \n    }\n    \n    public void updateSubrectangle(int row1, int col1, int row2, int col2, int newValue) {\n        \n    }\n    \n    public int getValue(int row, int col) {\n        \n    }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * SubrectangleQueries obj = new SubrectangleQueries(rectangle);\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue);\n * int param_2 = obj.getValue(row,col);\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Python",
                    "langSlug": "python",
                    "code": "class SubrectangleQueries(object):\n\n    def __init__(self, rectangle):\n        \"\"\"\n        :type rectangle: List[List[int]]\n        \"\"\"\n        \n\n    def updateSubrectangle(self, row1, col1, row2, col2, newValue):\n        \"\"\"\n        :type row1: int\n        :type col1: int\n        :type row2: int\n        :type col2: int\n        :type newValue: int\n        :rtype: None\n        \"\"\"\n        \n\n    def getValue(self, row, col):\n        \"\"\"\n        :type row: int\n        :type col: int\n        :rtype: int\n        \"\"\"\n        \n\n\n# Your SubrectangleQueries object will be instantiated and called as such:\n# obj = SubrectangleQueries(rectangle)\n# obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n# param_2 = obj.getValue(row,col)",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Python3",
                    "langSlug": "python3",
                    "code": "class SubrectangleQueries:\n\n    def __init__(self, rectangle: List[List[int]]):\n        \n\n    def updateSubrectangle(self, row1: int, col1: int, row2: int, col2: int, newValue: int) -> None:\n        \n\n    def getValue(self, row: int, col: int) -> int:\n        \n\n\n# Your SubrectangleQueries object will be instantiated and called as such:\n# obj = SubrectangleQueries(rectangle)\n# obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n# param_2 = obj.getValue(row,col)",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "C",
                    "langSlug": "c",
                    "code": "\n\n\ntypedef struct {\n    \n} SubrectangleQueries;\n\n\nSubrectangleQueries* subrectangleQueriesCreate(int** rectangle, int rectangleSize, int* rectangleColSize) {\n    \n}\n\nvoid subrectangleQueriesUpdateSubrectangle(SubrectangleQueries* obj, int row1, int col1, int row2, int col2, int newValue) {\n  \n}\n\nint subrectangleQueriesGetValue(SubrectangleQueries* obj, int row, int col) {\n  \n}\n\nvoid subrectangleQueriesFree(SubrectangleQueries* obj) {\n    \n}\n\n/**\n * Your SubrectangleQueries struct will be instantiated and called as such:\n * SubrectangleQueries* obj = subrectangleQueriesCreate(rectangle, rectangleSize, rectangleColSize);\n * subrectangleQueriesUpdateSubrectangle(obj, row1, col1, row2, col2, newValue);\n \n * int param_2 = subrectangleQueriesGetValue(obj, row, col);\n \n * subrectangleQueriesFree(obj);\n*/",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "C#",
                    "langSlug": "csharp",
                    "code": "public class SubrectangleQueries {\n\n    public SubrectangleQueries(int[][] rectangle) {\n        \n    }\n    \n    public void UpdateSubrectangle(int row1, int col1, int row2, int col2, int newValue) {\n        \n    }\n    \n    public int GetValue(int row, int col) {\n        \n    }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * SubrectangleQueries obj = new SubrectangleQueries(rectangle);\n * obj.UpdateSubrectangle(row1,col1,row2,col2,newValue);\n * int param_2 = obj.GetValue(row,col);\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "JavaScript",
                    "langSlug": "javascript",
                    "code": "/**\n * @param {number[][]} rectangle\n */\nvar SubrectangleQueries = function(rectangle) {\n    \n};\n\n/** \n * @param {number} row1 \n * @param {number} col1 \n * @param {number} row2 \n * @param {number} col2 \n * @param {number} newValue\n * @return {void}\n */\nSubrectangleQueries.prototype.updateSubrectangle = function(row1, col1, row2, col2, newValue) {\n    \n};\n\n/** \n * @param {number} row \n * @param {number} col\n * @return {number}\n */\nSubrectangleQueries.prototype.getValue = function(row, col) {\n    \n};\n\n/** \n * Your SubrectangleQueries object will be instantiated and called as such:\n * var obj = new SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n * var param_2 = obj.getValue(row,col)\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "TypeScript",
                    "langSlug": "typescript",
                    "code": "class SubrectangleQueries {\n    constructor(rectangle: number[][]) {\n\n    }\n\n    updateSubrectangle(row1: number, col1: number, row2: number, col2: number, newValue: number): void {\n\n    }\n\n    getValue(row: number, col: number): number {\n\n    }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * var obj = new SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n * var param_2 = obj.getValue(row,col)\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "PHP",
                    "langSlug": "php",
                    "code": "class SubrectangleQueries {\n    /**\n     * @param Integer[][] $rectangle\n     */\n    function __construct($rectangle) {\n        \n    }\n  \n    /**\n     * @param Integer $row1\n     * @param Integer $col1\n     * @param Integer $row2\n     * @param Integer $col2\n     * @param Integer $newValue\n     * @return NULL\n     */\n    function updateSubrectangle($row1, $col1, $row2, $col2, $newValue) {\n        \n    }\n  \n    /**\n     * @param Integer $row\n     * @param Integer $col\n     * @return Integer\n     */\n    function getValue($row, $col) {\n        \n    }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * $obj = SubrectangleQueries($rectangle);\n * $obj->updateSubrectangle($row1, $col1, $row2, $col2, $newValue);\n * $ret_2 = $obj->getValue($row, $col);\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Swift",
                    "langSlug": "swift",
                    "code": "\nclass SubrectangleQueries {\n\n    init(_ rectangle: [[Int]]) {\n        \n    }\n    \n    func updateSubrectangle(_ row1: Int, _ col1: Int, _ row2: Int, _ col2: Int, _ newValue: Int) {\n        \n    }\n    \n    func getValue(_ row: Int, _ col: Int) -> Int {\n        \n    }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * let obj = SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1, col1, row2, col2, newValue)\n * let ret_2: Int = obj.getValue(row, col)\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Kotlin",
                    "langSlug": "kotlin",
                    "code": "class SubrectangleQueries(rectangle: Array<IntArray>) {\n\n    fun updateSubrectangle(row1: Int, col1: Int, row2: Int, col2: Int, newValue: Int) {\n        \n    }\n\n    fun getValue(row: Int, col: Int): Int {\n        \n    }\n\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * var obj = SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n * var param_2 = obj.getValue(row,col)\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Go",
                    "langSlug": "golang",
                    "code": "type SubrectangleQueries struct {\n    \n}\n\n\nfunc Constructor(rectangle [][]int) SubrectangleQueries {\n    \n}\n\n\nfunc (this *SubrectangleQueries) UpdateSubrectangle(row1 int, col1 int, row2 int, col2 int, newValue int)  {\n    \n}\n\n\nfunc (this *SubrectangleQueries) GetValue(row int, col int) int {\n    \n}\n\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * obj := Constructor(rectangle);\n * obj.UpdateSubrectangle(row1,col1,row2,col2,newValue);\n * param_2 := obj.GetValue(row,col);\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Ruby",
                    "langSlug": "ruby",
                    "code": "class SubrectangleQueries\n\n=begin\n    :type rectangle: Integer[][]\n=end\n    def initialize(rectangle)\n        \n    end\n\n\n=begin\n    :type row1: Integer\n    :type col1: Integer\n    :type row2: Integer\n    :type col2: Integer\n    :type new_value: Integer\n    :rtype: Void\n=end\n    def update_subrectangle(row1, col1, row2, col2, new_value)\n        \n    end\n\n\n=begin\n    :type row: Integer\n    :type col: Integer\n    :rtype: Integer\n=end\n    def get_value(row, col)\n        \n    end\n\n\nend\n\n# Your SubrectangleQueries object will be instantiated and called as such:\n# obj = SubrectangleQueries.new(rectangle)\n# obj.update_subrectangle(row1, col1, row2, col2, new_value)\n# param_2 = obj.get_value(row, col)",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Scala",
                    "langSlug": "scala",
                    "code": "class SubrectangleQueries(_rectangle: Array[Array[Int]]) {\n\n    def updateSubrectangle(row1: Int, col1: Int, row2: Int, col2: Int, newValue: Int) {\n        \n    }\n\n    def getValue(row: Int, col: Int): Int = {\n        \n    }\n\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * var obj = new SubrectangleQueries(rectangle)\n * obj.updateSubrectangle(row1,col1,row2,col2,newValue)\n * var param_2 = obj.getValue(row,col)\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Rust",
                    "langSlug": "rust",
                    "code": "struct SubrectangleQueries {\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 SubrectangleQueries {\n\n    fn new(rectangle: Vec<Vec<i32>>) -> Self {\n        \n    }\n    \n    fn update_subrectangle(&self, row1: i32, col1: i32, row2: i32, col2: i32, new_value: i32) {\n        \n    }\n    \n    fn get_value(&self, row: i32, col: i32) -> i32 {\n        \n    }\n}\n\n/**\n * Your SubrectangleQueries object will be instantiated and called as such:\n * let obj = SubrectangleQueries::new(rectangle);\n * obj.update_subrectangle(row1, col1, row2, col2, newValue);\n * let ret_2: i32 = obj.get_value(row, col);\n */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Racket",
                    "langSlug": "racket",
                    "code": "(define subrectangle-queries%\n  (class object%\n    (super-new)\n\n    ; rectangle : (listof (listof exact-integer?))\n    (init-field\n      rectangle)\n    \n    ; update-subrectangle : exact-integer? exact-integer? exact-integer? exact-integer? exact-integer? -> void?\n    (define/public (update-subrectangle row1 col1 row2 col2 newValue)\n\n      )\n    ; get-value : exact-integer? exact-integer? -> exact-integer?\n    (define/public (get-value row col)\n\n      )))\n\n;; Your subrectangle-queries% object will be instantiated and called as such:\n;; (define obj (new subrectangle-queries% [rectangle rectangle]))\n;; (send obj update-subrectangle row1 col1 row2 col2 new-value)\n;; (define param_2 (send obj get-value row col))",
                    "__typename": "CodeSnippetNode"
                }
            ],
            "stats": "{\"totalAccepted\": \"98.9K\", \"totalSubmission\": \"112.2K\", \"totalAcceptedRaw\": 98933, \"totalSubmissionRaw\": 112204, \"acRate\": \"88.2%\"}",
            "hints": [
                "Use brute force to update a rectangle and, response to the queries in O(1)."
            ],
            "solution": null,
            "status": null,
            "sampleTestCase": "[\"SubrectangleQueries\",\"getValue\",\"updateSubrectangle\",\"getValue\",\"getValue\",\"updateSubrectangle\",\"getValue\",\"getValue\"]\r\n[[[[1,2,1],[4,3,4],[3,2,1],[1,1,1]]],[0,2],[0,0,3,2,5],[0,2],[3,1],[3,0,3,2,10],[3,1],[0,2]]\r",
            "metaData": "{\n  \"classname\": \"SubrectangleQueries\",\n  \"constructor\": {\n    \"params\": [\n      {\n        \"type\": \"integer[][]\",\n        \"name\": \"rectangle\"\n      }\n    ]\n  },\n  \"methods\": [\n    {\n      \"params\": [\n        {\n          \"type\": \"integer\",\n          \"name\": \"row1\"\n        },\n        {\n          \"type\": \"integer\",\n          \"name\": \"col1\"\n        },\n        {\n          \"type\": \"integer\",\n          \"name\": \"row2\"\n        },\n        {\n          \"type\": \"integer\",\n          \"name\": \"col2\"\n        },\n        {\n          \"type\": \"integer\",\n          \"name\": \"newValue\"\n        }\n      ],\n      \"name\": \"updateSubrectangle\",\n      \"return\": {\n        \"type\": \"void\"\n      }\n    },\n    {\n      \"params\": [\n        {\n          \"type\": \"integer\",\n          \"name\": \"row\"\n        },\n        {\n          \"type\": \"integer\",\n          \"name\": \"col\"\n        }\n      ],\n      \"name\": \"getValue\",\n      \"return\": {\n        \"type\": \"integer\"\n      }\n    }\n  ],\n  \"return\": {\n    \"type\": \"boolean\"\n  },\n  \"systemdesign\": true,\n  \"manual\": false\n}",
            "judgerAvailable": true,
            "judgeType": "large",
            "mysqlSchemas": [],
            "enableRunCode": true,
            "enableTestMode": false,
            "enableDebugger": true,
            "envInfo": "{\"cpp\": [\"C++\", \"<p>Compiled with <code> clang 11 </code> using the latest C++ 20 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 gnu11 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://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-10\\\" target=\\\"_blank\\\">C# 10 with .NET 6 runtime</a></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 5.3.0 version of <a href=\\\"https://github.com/datastructures-js/priority-queue/tree/fb4fdb984834421279aeb081df7af624d17c2a03\\\" target=\\\"_blank\\\">datastructures-js/priority-queue</a> and 4.2.1 version of <a href=\\\"https://github.com/datastructures-js/queue/tree/e63563025a5a805aa16928cb53bcd517bfea9230\\\" 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 1.21</code></p>\\r\\n<p>Support <a href=\\\"https://github.com/emirpasic/gods/tree/v1.18.1\\\" target=\\\"_blank\\\">https://godoc.org/github.com/emirpasic/gods@v1.18.1</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 1.9.0</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 5.1.6, 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 ES2022 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>\"]}",
            "libraryUrl": null,
            "adminUrl": null,
            "challengeQuestion": null,
            "__typename": "QuestionNode"
        }
    }
}