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            "title": "Range Sum Query - Mutable",
            "titleSlug": "range-sum-query-mutable",
            "content": "<p>Given an integer array <code>nums</code>, handle multiple queries of the following types:</p>\n\n<ol>\n\t<li><strong>Update</strong> the value of an element in <code>nums</code>.</li>\n\t<li>Calculate the <strong>sum</strong> of the elements of <code>nums</code> between indices <code>left</code> and <code>right</code> <strong>inclusive</strong> where <code>left &lt;= right</code>.</li>\n</ol>\n\n<p>Implement the <code>NumArray</code> class:</p>\n\n<ul>\n\t<li><code>NumArray(int[] nums)</code> Initializes the object with the integer array <code>nums</code>.</li>\n\t<li><code>void update(int index, int val)</code> <strong>Updates</strong> the value of <code>nums[index]</code> to be <code>val</code>.</li>\n\t<li><code>int sumRange(int left, int right)</code> Returns the <strong>sum</strong> of the elements of <code>nums</code> between indices <code>left</code> and <code>right</code> <strong>inclusive</strong> (i.e. <code>nums[left] + nums[left + 1] + ... + nums[right]</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;NumArray&quot;, &quot;sumRange&quot;, &quot;update&quot;, &quot;sumRange&quot;]\n[[[1, 3, 5]], [0, 2], [1, 2], [0, 2]]\n<strong>Output</strong>\n[null, 9, null, 8]\n\n<strong>Explanation</strong>\nNumArray numArray = new NumArray([1, 3, 5]);\nnumArray.sumRange(0, 2); // return 1 + 3 + 5 = 9\nnumArray.update(1, 2);   // nums = [1, 2, 5]\nnumArray.sumRange(0, 2); // return 1 + 2 + 5 = 8\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= nums.length &lt;= 3 * 10<sup>4</sup></code></li>\n\t<li><code>-100 &lt;= nums[i] &lt;= 100</code></li>\n\t<li><code>0 &lt;= index &lt; nums.length</code></li>\n\t<li><code>-100 &lt;= val &lt;= 100</code></li>\n\t<li><code>0 &lt;= left &lt;= right &lt; nums.length</code></li>\n\t<li>At most <code>3 * 10<sup>4</sup></code> calls will be made to <code>update</code> and <code>sumRange</code>.</li>\n</ul>\n",
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                    "lang": "C++",
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                    "code": "class NumArray {\npublic:\n    NumArray(vector<int>& nums) {\n        \n    }\n    \n    void update(int index, int val) {\n        \n    }\n    \n    int sumRange(int left, int right) {\n        \n    }\n};\n\n/**\n * Your NumArray object will be instantiated and called as such:\n * NumArray* obj = new NumArray(nums);\n * obj->update(index,val);\n * int param_2 = obj->sumRange(left,right);\n */",
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                    "code": "class NumArray {\n\n    public NumArray(int[] nums) {\n        \n    }\n    \n    public void update(int index, int val) {\n        \n    }\n    \n    public int sumRange(int left, int right) {\n        \n    }\n}\n\n/**\n * Your NumArray object will be instantiated and called as such:\n * NumArray obj = new NumArray(nums);\n * obj.update(index,val);\n * int param_2 = obj.sumRange(left,right);\n */",
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                    "code": "class NumArray(object):\n\n    def __init__(self, nums):\n        \"\"\"\n        :type nums: List[int]\n        \"\"\"\n        \n\n    def update(self, index, val):\n        \"\"\"\n        :type index: int\n        :type val: int\n        :rtype: None\n        \"\"\"\n        \n\n    def sumRange(self, left, right):\n        \"\"\"\n        :type left: int\n        :type right: int\n        :rtype: int\n        \"\"\"\n        \n\n\n# Your NumArray object will be instantiated and called as such:\n# obj = NumArray(nums)\n# obj.update(index,val)\n# param_2 = obj.sumRange(left,right)",
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                    "lang": "Python3",
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                    "code": "class NumArray:\n\n    def __init__(self, nums: List[int]):\n        \n\n    def update(self, index: int, val: int) -> None:\n        \n\n    def sumRange(self, left: int, right: int) -> int:\n        \n\n\n# Your NumArray object will be instantiated and called as such:\n# obj = NumArray(nums)\n# obj.update(index,val)\n# param_2 = obj.sumRange(left,right)",
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                    "code": "\n\n\ntypedef struct {\n    \n} NumArray;\n\n\nNumArray* numArrayCreate(int* nums, int numsSize) {\n    \n}\n\nvoid numArrayUpdate(NumArray* obj, int index, int val) {\n  \n}\n\nint numArraySumRange(NumArray* obj, int left, int right) {\n  \n}\n\nvoid numArrayFree(NumArray* obj) {\n    \n}\n\n/**\n * Your NumArray struct will be instantiated and called as such:\n * NumArray* obj = numArrayCreate(nums, numsSize);\n * numArrayUpdate(obj, index, val);\n \n * int param_2 = numArraySumRange(obj, left, right);\n \n * numArrayFree(obj);\n*/",
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                    "code": "public class NumArray {\n\n    public NumArray(int[] nums) {\n        \n    }\n    \n    public void Update(int index, int val) {\n        \n    }\n    \n    public int SumRange(int left, int right) {\n        \n    }\n}\n\n/**\n * Your NumArray object will be instantiated and called as such:\n * NumArray obj = new NumArray(nums);\n * obj.Update(index,val);\n * int param_2 = obj.SumRange(left,right);\n */",
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                    "code": "/**\n * @param {number[]} nums\n */\nvar NumArray = function(nums) {\n    \n};\n\n/** \n * @param {number} index \n * @param {number} val\n * @return {void}\n */\nNumArray.prototype.update = function(index, val) {\n    \n};\n\n/** \n * @param {number} left \n * @param {number} right\n * @return {number}\n */\nNumArray.prototype.sumRange = function(left, right) {\n    \n};\n\n/** \n * Your NumArray object will be instantiated and called as such:\n * var obj = new NumArray(nums)\n * obj.update(index,val)\n * var param_2 = obj.sumRange(left,right)\n */",
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                    "code": "class NumArray\n\n=begin\n    :type nums: Integer[]\n=end\n    def initialize(nums)\n        \n    end\n\n\n=begin\n    :type index: Integer\n    :type val: Integer\n    :rtype: Void\n=end\n    def update(index, val)\n        \n    end\n\n\n=begin\n    :type left: Integer\n    :type right: Integer\n    :rtype: Integer\n=end\n    def sum_range(left, right)\n        \n    end\n\n\nend\n\n# Your NumArray object will be instantiated and called as such:\n# obj = NumArray.new(nums)\n# obj.update(index, val)\n# param_2 = obj.sum_range(left, right)",
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                    "code": "\nclass NumArray {\n\n    init(_ nums: [Int]) {\n        \n    }\n    \n    func update(_ index: Int, _ val: Int) {\n        \n    }\n    \n    func sumRange(_ left: Int, _ right: Int) -> Int {\n        \n    }\n}\n\n/**\n * Your NumArray object will be instantiated and called as such:\n * let obj = NumArray(nums)\n * obj.update(index, val)\n * let ret_2: Int = obj.sumRange(left, right)\n */",
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                    "code": "type NumArray struct {\n    \n}\n\n\nfunc Constructor(nums []int) NumArray {\n    \n}\n\n\nfunc (this *NumArray) Update(index int, val int)  {\n    \n}\n\n\nfunc (this *NumArray) SumRange(left int, right int) int {\n    \n}\n\n\n/**\n * Your NumArray object will be instantiated and called as such:\n * obj := Constructor(nums);\n * obj.Update(index,val);\n * param_2 := obj.SumRange(left,right);\n */",
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                    "code": "class NumArray(_nums: Array[Int]) {\n\n    def update(index: Int, `val`: Int) {\n        \n    }\n\n    def sumRange(left: Int, right: Int): Int = {\n        \n    }\n\n}\n\n/**\n * Your NumArray object will be instantiated and called as such:\n * var obj = new NumArray(nums)\n * obj.update(index,`val`)\n * var param_2 = obj.sumRange(left,right)\n */",
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                    "code": "class NumArray(nums: IntArray) {\n\n    fun update(index: Int, `val`: Int) {\n        \n    }\n\n    fun sumRange(left: Int, right: Int): Int {\n        \n    }\n\n}\n\n/**\n * Your NumArray object will be instantiated and called as such:\n * var obj = NumArray(nums)\n * obj.update(index,`val`)\n * var param_2 = obj.sumRange(left,right)\n */",
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                    "code": "struct NumArray {\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 NumArray {\n\n    fn new(nums: Vec<i32>) -> Self {\n        \n    }\n    \n    fn update(&self, index: i32, val: i32) {\n        \n    }\n    \n    fn sum_range(&self, left: i32, right: i32) -> i32 {\n        \n    }\n}\n\n/**\n * Your NumArray object will be instantiated and called as such:\n * let obj = NumArray::new(nums);\n * obj.update(index, val);\n * let ret_2: i32 = obj.sum_range(left, right);\n */",
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                    "code": "class NumArray {\n    /**\n     * @param Integer[] $nums\n     */\n    function __construct($nums) {\n        \n    }\n  \n    /**\n     * @param Integer $index\n     * @param Integer $val\n     * @return NULL\n     */\n    function update($index, $val) {\n        \n    }\n  \n    /**\n     * @param Integer $left\n     * @param Integer $right\n     * @return Integer\n     */\n    function sumRange($left, $right) {\n        \n    }\n}\n\n/**\n * Your NumArray object will be instantiated and called as such:\n * $obj = NumArray($nums);\n * $obj->update($index, $val);\n * $ret_2 = $obj->sumRange($left, $right);\n */",
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                    "code": "class NumArray {\n    constructor(nums: number[]) {\n\n    }\n\n    update(index: number, val: number): void {\n\n    }\n\n    sumRange(left: number, right: number): number {\n\n    }\n}\n\n/**\n * Your NumArray object will be instantiated and called as such:\n * var obj = new NumArray(nums)\n * obj.update(index,val)\n * var param_2 = obj.sumRange(left,right)\n */",
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                    "code": "(define num-array%\n  (class object%\n    (super-new)\n\n    ; nums : (listof exact-integer?)\n    (init-field\n      nums)\n    \n    ; update : exact-integer? exact-integer? -> void?\n    (define/public (update index val)\n\n      )\n    ; sum-range : exact-integer? exact-integer? -> exact-integer?\n    (define/public (sum-range left right)\n\n      )))\n\n;; Your num-array% object will be instantiated and called as such:\n;; (define obj (new num-array% [nums nums]))\n;; (send obj update index val)\n;; (define param_2 (send obj sum-range left right))",
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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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