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        "question": {
            "questionId": "937",
            "questionFrontendId": "901",
            "categoryTitle": "Algorithms",
            "boundTopicId": 1929,
            "title": "Online Stock Span",
            "titleSlug": "online-stock-span",
            "content": "<p>Design an algorithm that collects daily price quotes for some stock and returns <strong>the span</strong> of that stock&#39;s price for the current day.</p>\n\n<p>The <strong>span</strong> of the stock&#39;s price today is defined as the maximum number of consecutive days (starting from today and going backward) for which the stock price was less than or equal to today&#39;s price.</p>\n\n<ul>\n\t<li>For example, if the price of a stock over the next <code>7</code> days were <code>[100,80,60,70,60,75,85]</code>, then the stock spans would be <code>[1,1,1,2,1,4,6]</code>.</li>\n</ul>\n\n<p>Implement the <code>StockSpanner</code> class:</p>\n\n<ul>\n\t<li><code>StockSpanner()</code> Initializes the object of the class.</li>\n\t<li><code>int next(int price)</code> Returns the <strong>span</strong> of the stock&#39;s price given that today&#39;s price is <code>price</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;StockSpanner&quot;, &quot;next&quot;, &quot;next&quot;, &quot;next&quot;, &quot;next&quot;, &quot;next&quot;, &quot;next&quot;, &quot;next&quot;]\n[[], [100], [80], [60], [70], [60], [75], [85]]\n<strong>Output</strong>\n[null, 1, 1, 1, 2, 1, 4, 6]\n\n<strong>Explanation</strong>\nStockSpanner stockSpanner = new StockSpanner();\nstockSpanner.next(100); // return 1\nstockSpanner.next(80);  // return 1\nstockSpanner.next(60);  // return 1\nstockSpanner.next(70);  // return 2\nstockSpanner.next(60);  // return 1\nstockSpanner.next(75);  // return 4, because the last 4 prices (including today&#39;s price of 75) were less than or equal to today&#39;s price.\nstockSpanner.next(85);  // return 6\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= price &lt;= 10<sup>5</sup></code></li>\n\t<li>At most <code>10<sup>4</sup></code> calls will be made to <code>next</code>.</li>\n</ul>\n",
            "translatedTitle": "股票价格跨度",
            "translatedContent": "<p>编写一个 <code>StockSpanner</code> 类，它收集某些股票的每日报价，并返回该股票当日价格的跨度。</p>\n\n<p>今天股票价格的跨度被定义为股票价格小于或等于今天价格的最大连续日数（从今天开始往回数，包括今天）。</p>\n\n<p>例如，如果未来7天股票的价格是 <code>[100, 80, 60, 70, 60, 75, 85]</code>，那么股票跨度将是 <code>[1, 1, 1, 2, 1, 4, 6]</code>。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例：</strong></p>\n\n<pre><strong>输入：</strong>[&quot;StockSpanner&quot;,&quot;next&quot;,&quot;next&quot;,&quot;next&quot;,&quot;next&quot;,&quot;next&quot;,&quot;next&quot;,&quot;next&quot;], [[],[100],[80],[60],[70],[60],[75],[85]]\n<strong>输出：</strong>[null,1,1,1,2,1,4,6]\n<strong>解释：</strong>\n首先，初始化 S = StockSpanner()，然后：\nS.next(100) 被调用并返回 1，\nS.next(80) 被调用并返回 1，\nS.next(60) 被调用并返回 1，\nS.next(70) 被调用并返回 2，\nS.next(60) 被调用并返回 1，\nS.next(75) 被调用并返回 4，\nS.next(85) 被调用并返回 6。\n\n注意 (例如) S.next(75) 返回 4，因为截至今天的最后 4 个价格\n(包括今天的价格 75) 小于或等于今天的价格。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ol>\n\t<li>调用&nbsp;<code>StockSpanner.next(int price)</code>&nbsp;时，将有&nbsp;<code>1 &lt;= price &lt;= 10^5</code>。</li>\n\t<li>每个测试用例最多可以调用&nbsp; <code>10000</code> 次 <code>StockSpanner.next</code>。</li>\n\t<li>在所有测试用例中，最多调用&nbsp;<code>150000</code>&nbsp;次&nbsp;<code>StockSpanner.next</code>。</li>\n\t<li>此问题的总时间限制减少了 50%。</li>\n</ol>\n",
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                    "lang": "C++",
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                    "code": "class StockSpanner {\npublic:\n    StockSpanner() {\n\n    }\n    \n    int next(int price) {\n\n    }\n};\n\n/**\n * Your StockSpanner object will be instantiated and called as such:\n * StockSpanner* obj = new StockSpanner();\n * int param_1 = obj->next(price);\n */",
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                    "code": "class StockSpanner {\n\n    public StockSpanner() {\n\n    }\n    \n    public int next(int price) {\n\n    }\n}\n\n/**\n * Your StockSpanner object will be instantiated and called as such:\n * StockSpanner obj = new StockSpanner();\n * int param_1 = obj.next(price);\n */",
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                    "lang": "Python",
                    "langSlug": "python",
                    "code": "class StockSpanner(object):\n\n    def __init__(self):\n\n\n    def next(self, price):\n        \"\"\"\n        :type price: int\n        :rtype: int\n        \"\"\"\n\n\n\n# Your StockSpanner object will be instantiated and called as such:\n# obj = StockSpanner()\n# param_1 = obj.next(price)",
                    "__typename": "CodeSnippetNode"
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                    "lang": "Python3",
                    "langSlug": "python3",
                    "code": "class StockSpanner:\n\n    def __init__(self):\n\n\n    def next(self, price: int) -> int:\n\n\n\n# Your StockSpanner object will be instantiated and called as such:\n# obj = StockSpanner()\n# param_1 = obj.next(price)",
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                    "lang": "C",
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                    "code": "\n\n\ntypedef struct {\n\n} StockSpanner;\n\n\nStockSpanner* stockSpannerCreate() {\n\n}\n\nint stockSpannerNext(StockSpanner* obj, int price) {\n\n}\n\nvoid stockSpannerFree(StockSpanner* obj) {\n\n}\n\n/**\n * Your StockSpanner struct will be instantiated and called as such:\n * StockSpanner* obj = stockSpannerCreate();\n * int param_1 = stockSpannerNext(obj, price);\n \n * stockSpannerFree(obj);\n*/",
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                    "lang": "C#",
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                    "code": "public class StockSpanner {\n\n    public StockSpanner() {\n\n    }\n    \n    public int Next(int price) {\n\n    }\n}\n\n/**\n * Your StockSpanner object will be instantiated and called as such:\n * StockSpanner obj = new StockSpanner();\n * int param_1 = obj.Next(price);\n */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "JavaScript",
                    "langSlug": "javascript",
                    "code": "\nvar StockSpanner = function() {\n\n};\n\n/** \n * @param {number} price\n * @return {number}\n */\nStockSpanner.prototype.next = function(price) {\n\n};\n\n/**\n * Your StockSpanner object will be instantiated and called as such:\n * var obj = new StockSpanner()\n * var param_1 = obj.next(price)\n */",
                    "__typename": "CodeSnippetNode"
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                    "lang": "Ruby",
                    "langSlug": "ruby",
                    "code": "class StockSpanner\n    def initialize()\n\n    end\n\n\n=begin\n    :type price: Integer\n    :rtype: Integer\n=end\n    def next(price)\n\n    end\n\n\nend\n\n# Your StockSpanner object will be instantiated and called as such:\n# obj = StockSpanner.new()\n# param_1 = obj.next(price)",
                    "__typename": "CodeSnippetNode"
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                    "lang": "Swift",
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                    "code": "\nclass StockSpanner {\n\n    init() {\n\n    }\n    \n    func next(_ price: Int) -> Int {\n\n    }\n}\n\n/**\n * Your StockSpanner object will be instantiated and called as such:\n * let obj = StockSpanner()\n * let ret_1: Int = obj.next(price)\n */",
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                    "lang": "Go",
                    "langSlug": "golang",
                    "code": "type StockSpanner struct {\n\n}\n\n\nfunc Constructor() StockSpanner {\n\n}\n\n\nfunc (this *StockSpanner) Next(price int) int {\n\n}\n\n\n/**\n * Your StockSpanner object will be instantiated and called as such:\n * obj := Constructor();\n * param_1 := obj.Next(price);\n */",
                    "__typename": "CodeSnippetNode"
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                    "lang": "Scala",
                    "langSlug": "scala",
                    "code": "class StockSpanner() {\n\n    def next(price: Int): Int = {\n\n    }\n\n}\n\n/**\n * Your StockSpanner object will be instantiated and called as such:\n * var obj = new StockSpanner()\n * var param_1 = obj.next(price)\n */",
                    "__typename": "CodeSnippetNode"
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                    "lang": "Kotlin",
                    "langSlug": "kotlin",
                    "code": "class StockSpanner() {\n\n    fun next(price: Int): Int {\n\n    }\n\n}\n\n/**\n * Your StockSpanner object will be instantiated and called as such:\n * var obj = StockSpanner()\n * var param_1 = obj.next(price)\n */",
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                    "lang": "Rust",
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                    "code": "struct StockSpanner {\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 StockSpanner {\n\n    fn new() -> Self {\n\n    }\n    \n    fn next(&self, price: i32) -> i32 {\n\n    }\n}\n\n/**\n * Your StockSpanner object will be instantiated and called as such:\n * let obj = StockSpanner::new();\n * let ret_1: i32 = obj.next(price);\n */",
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                    "lang": "PHP",
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                    "code": "class StockSpanner {\n    /**\n     */\n    function __construct() {\n\n    }\n\n    /**\n     * @param Integer $price\n     * @return Integer\n     */\n    function next($price) {\n\n    }\n}\n\n/**\n * Your StockSpanner object will be instantiated and called as such:\n * $obj = StockSpanner();\n * $ret_1 = $obj->next($price);\n */",
                    "__typename": "CodeSnippetNode"
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                    "lang": "TypeScript",
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                    "code": "class StockSpanner {\n    constructor() {\n\n    }\n\n    next(price: number): number {\n\n    }\n}\n\n/**\n * Your StockSpanner object will be instantiated and called as such:\n * var obj = new StockSpanner()\n * var param_1 = obj.next(price)\n */",
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                    "code": "(define stock-spanner%\n  (class object%\n    (super-new)\n    (init-field)\n    \n    ; next : exact-integer? -> exact-integer?\n    (define/public (next price)\n\n      )))\n\n;; Your stock-spanner% object will be instantiated and called as such:\n;; (define obj (new stock-spanner%))\n;; (define param_1 (send obj next price))",
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                    "code": "-spec stock_spanner_init_() -> any().\nstock_spanner_init_() ->\n  .\n\n-spec stock_spanner_next(Price :: integer()) -> integer().\nstock_spanner_next(Price) ->\n  .\n\n\n%% Your functions will be called as such:\n%% stock_spanner_init_(),\n%% Param_1 = stock_spanner_next(Price),\n\n%% stock_spanner_init_ will be called before every test case, in which you can do some necessary initializations.",
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                    "lang": "Elixir",
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                    "code": "defmodule StockSpanner do\n  @spec init_() :: any\n  def init_() do\n\n  end\n\n  @spec next(price :: integer) :: integer\n  def next(price) do\n\n  end\nend\n\n# Your functions will be called as such:\n# StockSpanner.init_()\n# param_1 = StockSpanner.next(price)\n\n# StockSpanner.init_ will be called before every test case, in which you can do some necessary initializations.",
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href=\\\"https:\\/\\/github.com\\/datastructures-js\\/queue\\\" target=\\\"_blank\\\"> datastructures-js\\/queue<\\/a>\\u3002<\\/p>\"],\"ruby\":[\"Ruby\",\"<p>\\u4f7f\\u7528<code>Ruby 3.1<\\/code>\\u6267\\u884c<\\/p>\\r\\n\\r\\n<p>\\u4e00\\u4e9b\\u5e38\\u7528\\u7684\\u6570\\u636e\\u7ed3\\u6784\\u5df2\\u5728 Algorithms \\u6a21\\u5757\\u4e2d\\u63d0\\u4f9b\\uff1ahttps:\\/\\/www.rubydoc.info\\/github\\/kanwei\\/algorithms\\/Algorithms<\\/p>\"],\"swift\":[\"Swift\",\"<p>\\u7248\\u672c\\uff1a<code>Swift 5.5.2<\\/code><\\/p>\\r\\n\\r\\n<p>\\u6211\\u4eec\\u901a\\u5e38\\u4fdd\\u8bc1\\u66f4\\u65b0\\u5230 <a href=\\\"https:\\/\\/swift.org\\/download\\/\\\" target=\\\"_blank\\\">Apple\\u653e\\u51fa\\u7684\\u6700\\u65b0\\u7248Swift<\\/a>\\u3002\\u5982\\u679c\\u60a8\\u53d1\\u73b0Swift\\u4e0d\\u662f\\u6700\\u65b0\\u7248\\u7684\\uff0c\\u8bf7\\u8054\\u7cfb\\u6211\\u4eec\\uff01\\u6211\\u4eec\\u5c06\\u5c3d\\u5feb\\u66f4\\u65b0\\u3002<\\/p>\"],\"golang\":[\"Go\",\"<p>\\u7248\\u672c\\uff1a<code>Go 1.17<\\/code><\\/p>\\r\\n\\r\\n<p>\\u652f\\u6301 <a href=\\\"https:\\/\\/godoc.org\\/github.com\\/emirpasic\\/gods\\\" target=\\\"_blank\\\">https:\\/\\/godoc.org\\/github.com\\/emirpasic\\/gods<\\/a> \\u7b2c\\u4e09\\u65b9\\u5e93\\u3002<\\/p>\"],\"python3\":[\"Python3\",\"<p>\\u7248\\u672c\\uff1a<code>Python 3.10<\\/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 2.13<\\/code><\\/p>\"],\"kotlin\":[\"Kotlin\",\"<p>\\u7248\\u672c\\uff1a<code>Kotlin 1.3.10<\\/code><\\/p>\"],\"rust\":[\"Rust\",\"<p>\\u7248\\u672c\\uff1a<code>rust 1.58.1<\\/code><\\/p>\\r\\n\\r\\n<p>\\u652f\\u6301 crates.io \\u7684 <a href=\\\"https:\\/\\/crates.io\\/crates\\/rand\\\" target=\\\"_blank\\\">rand<\\/a><\\/p>\"],\"php\":[\"PHP\",\"<p><code>PHP 8.1<\\/code>.<\\/p>\\r\\n\\r\\n<p>With bcmath module.<\\/p>\"],\"typescript\":[\"TypeScript\",\"<p>TypeScript 4.5.4<\\/p>\\r\\n\\r\\n<p>Compile Options: --alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2020<\\/p>\"],\"racket\":[\"Racket\",\"<p><a href=\\\"https:\\/\\/docs.racket-lang.org\\/guide\\/performance.html#%28tech._c%29\\\" target=\\\"_blank\\\">Racket CS<\\/a> v8.3<\\/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 24.2\"],\"elixir\":[\"Elixir\",\"Elixir 1.13.0 with Erlang\\/OTP 24.2\"]}",
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