mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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190 lines
30 KiB
JSON
190 lines
30 KiB
JSON
{
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"data": {
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"question": {
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"questionId": "1775",
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"questionFrontendId": "1656",
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"categoryTitle": "Algorithms",
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"boundTopicId": 482730,
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"title": "Design an Ordered Stream",
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"titleSlug": "design-an-ordered-stream",
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"content": "<p>There is a stream of <code>n</code> <code>(idKey, value)</code> pairs arriving in an <strong>arbitrary</strong> order, where <code>idKey</code> is an integer between <code>1</code> and <code>n</code> and <code>value</code> is a string. No two pairs have the same <code>id</code>.</p>\n\n<p>Design a stream that returns the values in <strong>increasing order of their IDs</strong> by returning a <strong>chunk</strong> (list) of values after each insertion. The concatenation of all the <strong>chunks</strong> should result in a list of the sorted values.</p>\n\n<p>Implement the <code>OrderedStream</code> class:</p>\n\n<ul>\n\t<li><code>OrderedStream(int n)</code> Constructs the stream to take <code>n</code> values.</li>\n\t<li><code>String[] insert(int idKey, String value)</code> Inserts the pair <code>(idKey, value)</code> into the stream, then returns the <strong>largest possible chunk</strong> of currently inserted values that appear next in the order.</li>\n</ul>\n\n<p> </p>\n<p><strong class=\"example\">Example:</strong></p>\n\n<p><strong><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/11/10/q1.gif\" style=\"width: 682px; height: 240px;\" /></strong></p>\n\n<pre>\n<strong>Input</strong>\n["OrderedStream", "insert", "insert", "insert", "insert", "insert"]\n[[5], [3, "ccccc"], [1, "aaaaa"], [2, "bbbbb"], [5, "eeeee"], [4, "ddddd"]]\n<strong>Output</strong>\n[null, [], ["aaaaa"], ["bbbbb", "ccccc"], [], ["ddddd", "eeeee"]]\n\n<strong>Explanation</strong>\n// Note that the values ordered by ID is ["aaaaa", "bbbbb", "ccccc", "ddddd", "eeeee"].\nOrderedStream os = new OrderedStream(5);\nos.insert(3, "ccccc"); // Inserts (3, "ccccc"), returns [].\nos.insert(1, "aaaaa"); // Inserts (1, "aaaaa"), returns ["aaaaa"].\nos.insert(2, "bbbbb"); // Inserts (2, "bbbbb"), returns ["bbbbb", "ccccc"].\nos.insert(5, "eeeee"); // Inserts (5, "eeeee"), returns [].\nos.insert(4, "ddddd"); // Inserts (4, "ddddd"), returns ["ddddd", "eeeee"].\n// Concatentating all the chunks returned:\n// [] + ["aaaaa"] + ["bbbbb", "ccccc"] + [] + ["ddddd", "eeeee"] = ["aaaaa", "bbbbb", "ccccc", "ddddd", "eeeee"]\n// The resulting order is the same as the order above.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= n <= 1000</code></li>\n\t<li><code>1 <= id <= n</code></li>\n\t<li><code>value.length == 5</code></li>\n\t<li><code>value</code> consists only of lowercase letters.</li>\n\t<li>Each call to <code>insert</code> will have a unique <code>id.</code></li>\n\t<li>Exactly <code>n</code> calls will be made to <code>insert</code>.</li>\n</ul>\n",
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"translatedTitle": "设计有序流",
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"translatedContent": "<p>有 <code>n</code> 个 <code>(id, value)</code> 对，其中 <code>id</code> 是 <code>1</code> 到 <code>n</code> 之间的一个整数，<code>value</code> 是一个字符串。不存在 <code>id</code> 相同的两个 <code>(id, value)</code> 对。</p>\n\n<p>设计一个流，以 <strong>任意</strong> 顺序获取 <code>n</code> 个 <code>(id, value)</code> 对，并在多次调用时 <strong>按 <code>id</code> 递增的顺序</strong> 返回一些值。</p>\n\n<p>实现 <code>OrderedStream</code> 类：</p>\n\n<ul>\n\t<li><code>OrderedStream(int n)</code> 构造一个能接收 <code>n</code> 个值的流，并将当前指针 <code>ptr</code> 设为 <code>1</code> 。</li>\n\t<li><code>String[] insert(int id, String value)</code> 向流中存储新的 <code>(id, value)</code> 对。存储后：\n\t<ul>\n\t\t<li>如果流存储有 <code>id = ptr</code> 的 <code>(id, value)</code> 对，则找出从 <code>id = ptr</code> 开始的 <strong>最长 id 连续递增序列</strong> ，并 <strong>按顺序</strong> 返回与这些 id 关联的值的列表。然后，将 <code>ptr</code> 更新为最后那个 <code>id + 1</code> 。</li>\n\t\t<li>\n\t\t<p>否则，返回一个空列表。</p>\n\t\t</li>\n\t</ul>\n\t</li>\n</ul>\n\n<p> </p>\n\n<p><strong>示例：</strong></p>\n\n<p><strong><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/11/15/q1.gif\" style=\"width: 682px; height: 240px;\" /></strong></p>\n\n<pre>\n<strong>输入</strong>\n[\"OrderedStream\", \"insert\", \"insert\", \"insert\", \"insert\", \"insert\"]\n[[5], [3, \"ccccc\"], [1, \"aaaaa\"], [2, \"bbbbb\"], [5, \"eeeee\"], [4, \"ddddd\"]]\n<strong>输出</strong>\n[null, [], [\"aaaaa\"], [\"bbbbb\", \"ccccc\"], [], [\"ddddd\", \"eeeee\"]]\n\n<strong>解释</strong>\nOrderedStream os= new OrderedStream(5);\nos.insert(3, \"ccccc\"); // 插入 (3, \"ccccc\")，返回 []\nos.insert(1, \"aaaaa\"); // 插入 (1, \"aaaaa\")，返回 [\"aaaaa\"]\nos.insert(2, \"bbbbb\"); // 插入 (2, \"bbbbb\")，返回 [\"bbbbb\", \"ccccc\"]\nos.insert(5, \"eeeee\"); // 插入 (5, \"eeeee\")，返回 []\nos.insert(4, \"ddddd\"); // 插入 (4, \"ddddd\")，返回 [\"ddddd\", \"eeeee\"]\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 <= n <= 1000</code></li>\n\t<li><code>1 <= id <= n</code></li>\n\t<li><code>value.length == 5</code></li>\n\t<li><code>value</code> 仅由小写字母组成</li>\n\t<li>每次调用 <code>insert</code> 都会使用一个唯一的 <code>id</code></li>\n\t<li>恰好调用 <code>n</code> 次 <code>insert</code></li>\n</ul>\n",
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"code": "class OrderedStream {\npublic:\n OrderedStream(int n) {\n\n }\n \n vector<string> insert(int idKey, string value) {\n\n }\n};\n\n/**\n * Your OrderedStream object will be instantiated and called as such:\n * OrderedStream* obj = new OrderedStream(n);\n * vector<string> param_1 = obj->insert(idKey,value);\n */",
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"code": "class OrderedStream {\n\n public OrderedStream(int n) {\n\n }\n \n public List<String> insert(int idKey, String value) {\n\n }\n}\n\n/**\n * Your OrderedStream object will be instantiated and called as such:\n * OrderedStream obj = new OrderedStream(n);\n * List<String> param_1 = obj.insert(idKey,value);\n */",
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"code": "class OrderedStream(object):\n\n def __init__(self, n):\n \"\"\"\n :type n: int\n \"\"\"\n\n\n def insert(self, idKey, value):\n \"\"\"\n :type idKey: int\n :type value: str\n :rtype: List[str]\n \"\"\"\n\n\n\n# Your OrderedStream object will be instantiated and called as such:\n# obj = OrderedStream(n)\n# param_1 = obj.insert(idKey,value)",
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"code": "class OrderedStream:\n\n def __init__(self, n: int):\n\n\n def insert(self, idKey: int, value: str) -> List[str]:\n\n\n\n# Your OrderedStream object will be instantiated and called as such:\n# obj = OrderedStream(n)\n# param_1 = obj.insert(idKey,value)",
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"code": "\n\n\ntypedef struct {\n \n} OrderedStream;\n\n\nOrderedStream* orderedStreamCreate(int n) {\n \n}\n\nchar** orderedStreamInsert(OrderedStream* obj, int idKey, char* value, int* retSize) {\n \n}\n\nvoid orderedStreamFree(OrderedStream* obj) {\n \n}\n\n/**\n * Your OrderedStream struct will be instantiated and called as such:\n * OrderedStream* obj = orderedStreamCreate(n);\n * char** param_1 = orderedStreamInsert(obj, idKey, value, retSize);\n \n * orderedStreamFree(obj);\n*/",
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"code": "public class OrderedStream {\n\n public OrderedStream(int n) {\n\n }\n \n public IList<string> Insert(int idKey, string value) {\n\n }\n}\n\n/**\n * Your OrderedStream object will be instantiated and called as such:\n * OrderedStream obj = new OrderedStream(n);\n * IList<string> param_1 = obj.Insert(idKey,value);\n */",
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"code": "/**\n * @param {number} n\n */\nvar OrderedStream = function(n) {\n\n};\n\n/** \n * @param {number} idKey \n * @param {string} value\n * @return {string[]}\n */\nOrderedStream.prototype.insert = function(idKey, value) {\n\n};\n\n/**\n * Your OrderedStream object will be instantiated and called as such:\n * var obj = new OrderedStream(n)\n * var param_1 = obj.insert(idKey,value)\n */",
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"code": "class OrderedStream {\n constructor(n: number) {\n \n }\n\n insert(idKey: number, value: string): string[] {\n \n }\n}\n\n/**\n * Your OrderedStream object will be instantiated and called as such:\n * var obj = new OrderedStream(n)\n * var param_1 = obj.insert(idKey,value)\n */",
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"code": "class OrderedStream {\n /**\n * @param Integer $n\n */\n function __construct($n) {\n\n }\n\n /**\n * @param Integer $idKey\n * @param String $value\n * @return String[]\n */\n function insert($idKey, $value) {\n\n }\n}\n\n/**\n * Your OrderedStream object will be instantiated and called as such:\n * $obj = OrderedStream($n);\n * $ret_1 = $obj->insert($idKey, $value);\n */",
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"code": "\nclass OrderedStream {\n\n init(_ n: Int) {\n\n }\n \n func insert(_ idKey: Int, _ value: String) -> [String] {\n\n }\n}\n\n/**\n * Your OrderedStream object will be instantiated and called as such:\n * let obj = OrderedStream(n)\n * let ret_1: [String] = obj.insert(idKey, value)\n */",
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"code": "class OrderedStream(n: Int) {\n\n fun insert(idKey: Int, value: String): List<String> {\n\n }\n\n}\n\n/**\n * Your OrderedStream object will be instantiated and called as such:\n * var obj = OrderedStream(n)\n * var param_1 = obj.insert(idKey,value)\n */",
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"code": "class OrderedStream {\n\n OrderedStream(int n) {\n \n }\n \n List<String> insert(int idKey, String value) {\n \n }\n}\n\n/**\n * Your OrderedStream object will be instantiated and called as such:\n * OrderedStream obj = OrderedStream(n);\n * List<String> param1 = obj.insert(idKey,value);\n */",
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"code": "type OrderedStream struct {\n\n}\n\n\nfunc Constructor(n int) OrderedStream {\n\n}\n\n\nfunc (this *OrderedStream) Insert(idKey int, value string) []string {\n\n}\n\n\n/**\n * Your OrderedStream object will be instantiated and called as such:\n * obj := Constructor(n);\n * param_1 := obj.Insert(idKey,value);\n */",
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"code": "class OrderedStream\n\n=begin\n :type n: Integer\n=end\n def initialize(n)\n\n end\n\n\n=begin\n :type id_key: Integer\n :type value: String\n :rtype: String[]\n=end\n def insert(id_key, value)\n\n end\n\n\nend\n\n# Your OrderedStream object will be instantiated and called as such:\n# obj = OrderedStream.new(n)\n# param_1 = obj.insert(id_key, value)",
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"code": "class OrderedStream(_n: Int) {\n\n def insert(idKey: Int, value: String): List[String] = {\n \n }\n\n}\n\n/**\n * Your OrderedStream object will be instantiated and called as such:\n * var obj = new OrderedStream(n)\n * var param_1 = obj.insert(idKey,value)\n */",
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"code": "struct OrderedStream {\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 OrderedStream {\n\n fn new(n: i32) -> Self {\n\n }\n \n fn insert(&self, id_key: i32, value: String) -> Vec<String> {\n\n }\n}\n\n/**\n * Your OrderedStream object will be instantiated and called as such:\n * let obj = OrderedStream::new(n);\n * let ret_1: Vec<String> = obj.insert(idKey, value);\n */",
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"lang": "Racket",
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"code": "(define ordered-stream%\n (class object%\n (super-new)\n \n ; n : exact-integer?\n (init-field\n n)\n \n ; insert : exact-integer? string? -> (listof string?)\n (define/public (insert id-key value)\n )))\n\n;; Your ordered-stream% object will be instantiated and called as such:\n;; (define obj (new ordered-stream% [n n]))\n;; (define param_1 (send obj insert id-key value))",
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"code": "defmodule OrderedStream do\n @spec init_(n :: integer) :: any\n def init_(n) do\n \n end\n\n @spec insert(id_key :: integer, value :: String.t) :: [String.t]\n def insert(id_key, value) do\n \n end\nend\n\n# Your functions will be called as such:\n# OrderedStream.init_(n)\n# param_1 = OrderedStream.insert(id_key, value)\n\n# OrderedStream.init_ will be called before every test case, in which you can do some necessary initializations.",
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"Maintain the next id that should be outputted.",
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"Maintain the ids that were inserted in the stream.",
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"Per each insert, make a loop where you check if the id that has the turn has been inserted, and if so increment the id that has the turn and continue the loop, else break."
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"sampleTestCase": "[\"OrderedStream\",\"insert\",\"insert\",\"insert\",\"insert\",\"insert\"]\n[[5],[3,\"ccccc\"],[1,\"aaaaa\"],[2,\"bbbbb\"],[5,\"eeeee\"],[4,\"ddddd\"]]",
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