mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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188 lines
30 KiB
JSON
188 lines
30 KiB
JSON
{
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"data": {
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"question": {
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"questionId": "211",
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"questionFrontendId": "211",
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"categoryTitle": "Algorithms",
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"boundTopicId": 1749,
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"title": "Design Add and Search Words Data Structure",
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"titleSlug": "design-add-and-search-words-data-structure",
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"content": "<p>Design a data structure that supports adding new words and finding if a string matches any previously added string.</p>\n\n<p>Implement the <code>WordDictionary</code> class:</p>\n\n<ul>\n\t<li><code>WordDictionary()</code> Initializes the object.</li>\n\t<li><code>void addWord(word)</code> Adds <code>word</code> to the data structure, it can be matched later.</li>\n\t<li><code>bool search(word)</code> Returns <code>true</code> if there is any string in the data structure that matches <code>word</code> or <code>false</code> otherwise. <code>word</code> may contain dots <code>'.'</code> where dots can be matched with any letter.</li>\n</ul>\n\n<p> </p>\n<p><strong class=\"example\">Example:</strong></p>\n\n<pre>\n<strong>Input</strong>\n["WordDictionary","addWord","addWord","addWord","search","search","search","search"]\n[[],["bad"],["dad"],["mad"],["pad"],["bad"],[".ad"],["b.."]]\n<strong>Output</strong>\n[null,null,null,null,false,true,true,true]\n\n<strong>Explanation</strong>\nWordDictionary wordDictionary = new WordDictionary();\nwordDictionary.addWord("bad");\nwordDictionary.addWord("dad");\nwordDictionary.addWord("mad");\nwordDictionary.search("pad"); // return False\nwordDictionary.search("bad"); // return True\nwordDictionary.search(".ad"); // return True\nwordDictionary.search("b.."); // return True\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= word.length <= 25</code></li>\n\t<li><code>word</code> in <code>addWord</code> consists of lowercase English letters.</li>\n\t<li><code>word</code> in <code>search</code> consist of <code>'.'</code> or lowercase English letters.</li>\n\t<li>There will be at most <code>2</code> dots in <code>word</code> for <code>search</code> queries.</li>\n\t<li>At most <code>10<sup>4</sup></code> calls will be made to <code>addWord</code> and <code>search</code>.</li>\n</ul>\n",
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"translatedTitle": "添加与搜索单词 - 数据结构设计",
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"translatedContent": "<p>请你设计一个数据结构，支持 添加新单词 和 查找字符串是否与任何先前添加的字符串匹配 。</p>\n\n<p>实现词典类 <code>WordDictionary</code> ：</p>\n\n<ul>\n\t<li><code>WordDictionary()</code> 初始化词典对象</li>\n\t<li><code>void addWord(word)</code> 将 <code>word</code> 添加到数据结构中，之后可以对它进行匹配</li>\n\t<li><code>bool search(word)</code> 如果数据结构中存在字符串与 <code>word</code> 匹配，则返回 <code>true</code> ；否则，返回 <code>false</code> 。<code>word</code> 中可能包含一些 <code>'.'</code> ，每个 <code>.</code> 都可以表示任何一个字母。</li>\n</ul>\n\n<p> </p>\n\n<p><strong>示例：</strong></p>\n\n<pre>\n<strong>输入：</strong>\n[\"WordDictionary\",\"addWord\",\"addWord\",\"addWord\",\"search\",\"search\",\"search\",\"search\"]\n[[],[\"bad\"],[\"dad\"],[\"mad\"],[\"pad\"],[\"bad\"],[\".ad\"],[\"b..\"]]\n<strong>输出：</strong>\n[null,null,null,null,false,true,true,true]\n\n<strong>解释：</strong>\nWordDictionary wordDictionary = new WordDictionary();\nwordDictionary.addWord(\"bad\");\nwordDictionary.addWord(\"dad\");\nwordDictionary.addWord(\"mad\");\nwordDictionary.search(\"pad\"); // 返回 False\nwordDictionary.search(\"bad\"); // 返回 True\nwordDictionary.search(\".ad\"); // 返回 True\nwordDictionary.search(\"b..\"); // 返回 True\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 <= word.length <= 25</code></li>\n\t<li><code>addWord</code> 中的 <code>word</code> 由小写英文字母组成</li>\n\t<li><code>search</code> 中的 <code>word</code> 由 '.' 或小写英文字母组成</li>\n\t<li>最多调用 <code>10<sup>4</sup></code> 次 <code>addWord</code> 和 <code>search</code></li>\n</ul>\n",
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"difficulty": "Medium",
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"name": "Depth-First Search",
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"translatedName": "深度优先搜索",
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"name": "Trie",
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"code": "class WordDictionary {\npublic:\n WordDictionary() {\n\n }\n \n void addWord(string word) {\n\n }\n \n bool search(string word) {\n\n }\n};\n\n/**\n * Your WordDictionary object will be instantiated and called as such:\n * WordDictionary* obj = new WordDictionary();\n * obj->addWord(word);\n * bool param_2 = obj->search(word);\n */",
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"code": "class WordDictionary {\n\n public WordDictionary() {\n\n }\n \n public void addWord(String word) {\n\n }\n \n public boolean search(String word) {\n\n }\n}\n\n/**\n * Your WordDictionary object will be instantiated and called as such:\n * WordDictionary obj = new WordDictionary();\n * obj.addWord(word);\n * boolean param_2 = obj.search(word);\n */",
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"lang": "Python",
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"code": "class WordDictionary(object):\n\n def __init__(self):\n\n\n def addWord(self, word):\n \"\"\"\n :type word: str\n :rtype: None\n \"\"\"\n\n\n def search(self, word):\n \"\"\"\n :type word: str\n :rtype: bool\n \"\"\"\n\n\n\n# Your WordDictionary object will be instantiated and called as such:\n# obj = WordDictionary()\n# obj.addWord(word)\n# param_2 = obj.search(word)",
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"code": "class WordDictionary:\n\n def __init__(self):\n\n\n def addWord(self, word: str) -> None:\n\n\n def search(self, word: str) -> bool:\n\n\n\n# Your WordDictionary object will be instantiated and called as such:\n# obj = WordDictionary()\n# obj.addWord(word)\n# param_2 = obj.search(word)",
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"code": "\n\n\ntypedef struct {\n \n} WordDictionary;\n\n\nWordDictionary* wordDictionaryCreate() {\n \n}\n\nvoid wordDictionaryAddWord(WordDictionary* obj, char* word) {\n \n}\n\nbool wordDictionarySearch(WordDictionary* obj, char* word) {\n \n}\n\nvoid wordDictionaryFree(WordDictionary* obj) {\n \n}\n\n/**\n * Your WordDictionary struct will be instantiated and called as such:\n * WordDictionary* obj = wordDictionaryCreate();\n * wordDictionaryAddWord(obj, word);\n \n * bool param_2 = wordDictionarySearch(obj, word);\n \n * wordDictionaryFree(obj);\n*/",
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"lang": "C#",
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"code": "public class WordDictionary {\n\n public WordDictionary() {\n\n }\n \n public void AddWord(string word) {\n\n }\n \n public bool Search(string word) {\n\n }\n}\n\n/**\n * Your WordDictionary object will be instantiated and called as such:\n * WordDictionary obj = new WordDictionary();\n * obj.AddWord(word);\n * bool param_2 = obj.Search(word);\n */",
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"lang": "JavaScript",
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"code": "\nvar WordDictionary = function() {\n\n};\n\n/** \n * @param {string} word\n * @return {void}\n */\nWordDictionary.prototype.addWord = function(word) {\n\n};\n\n/** \n * @param {string} word\n * @return {boolean}\n */\nWordDictionary.prototype.search = function(word) {\n\n};\n\n/**\n * Your WordDictionary object will be instantiated and called as such:\n * var obj = new WordDictionary()\n * obj.addWord(word)\n * var param_2 = obj.search(word)\n */",
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"code": "class WordDictionary {\n constructor() {\n \n }\n\n addWord(word: string): void {\n \n }\n\n search(word: string): boolean {\n \n }\n}\n\n/**\n * Your WordDictionary object will be instantiated and called as such:\n * var obj = new WordDictionary()\n * obj.addWord(word)\n * var param_2 = obj.search(word)\n */",
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"code": "class WordDictionary {\n /**\n */\n function __construct() {\n\n }\n\n /**\n * @param String $word\n * @return NULL\n */\n function addWord($word) {\n\n }\n\n /**\n * @param String $word\n * @return Boolean\n */\n function search($word) {\n\n }\n}\n\n/**\n * Your WordDictionary object will be instantiated and called as such:\n * $obj = WordDictionary();\n * $obj->addWord($word);\n * $ret_2 = $obj->search($word);\n */",
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"lang": "Swift",
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"code": "\nclass WordDictionary {\n\n init() {\n\n }\n \n func addWord(_ word: String) {\n\n }\n \n func search(_ word: String) -> Bool {\n\n }\n}\n\n/**\n * Your WordDictionary object will be instantiated and called as such:\n * let obj = WordDictionary()\n * obj.addWord(word)\n * let ret_2: Bool = obj.search(word)\n */",
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"lang": "Kotlin",
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"code": "class WordDictionary() {\n\n fun addWord(word: String) {\n\n }\n\n fun search(word: String): Boolean {\n\n }\n\n}\n\n/**\n * Your WordDictionary object will be instantiated and called as such:\n * var obj = WordDictionary()\n * obj.addWord(word)\n * var param_2 = obj.search(word)\n */",
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"lang": "Dart",
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"code": "class WordDictionary {\n\n WordDictionary() {\n \n }\n \n void addWord(String word) {\n \n }\n \n bool search(String word) {\n \n }\n}\n\n/**\n * Your WordDictionary object will be instantiated and called as such:\n * WordDictionary obj = WordDictionary();\n * obj.addWord(word);\n * bool param2 = obj.search(word);\n */",
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"code": "type WordDictionary struct {\n\n}\n\n\nfunc Constructor() WordDictionary {\n\n}\n\n\nfunc (this *WordDictionary) AddWord(word string) {\n\n}\n\n\nfunc (this *WordDictionary) Search(word string) bool {\n\n}\n\n\n/**\n * Your WordDictionary object will be instantiated and called as such:\n * obj := Constructor();\n * obj.AddWord(word);\n * param_2 := obj.Search(word);\n */",
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"lang": "Ruby",
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"code": "class WordDictionary\n def initialize()\n\n end\n\n\n=begin\n :type word: String\n :rtype: Void\n=end\n def add_word(word)\n\n end\n\n\n=begin\n :type word: String\n :rtype: Boolean\n=end\n def search(word)\n\n end\n\n\nend\n\n# Your WordDictionary object will be instantiated and called as such:\n# obj = WordDictionary.new()\n# obj.add_word(word)\n# param_2 = obj.search(word)",
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"lang": "Scala",
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"code": "class WordDictionary() {\n\n def addWord(word: String) {\n\n }\n\n def search(word: String): Boolean = {\n\n }\n\n}\n\n/**\n * Your WordDictionary object will be instantiated and called as such:\n * var obj = new WordDictionary()\n * obj.addWord(word)\n * var param_2 = obj.search(word)\n */",
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"lang": "Rust",
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"code": "struct WordDictionary {\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 WordDictionary {\n\n fn new() -> Self {\n\n }\n \n fn add_word(&self, word: String) {\n\n }\n \n fn search(&self, word: String) -> bool {\n\n }\n}\n\n/**\n * Your WordDictionary object will be instantiated and called as such:\n * let obj = WordDictionary::new();\n * obj.add_word(word);\n * let ret_2: bool = obj.search(word);\n */",
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"lang": "Racket",
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"code": "(define word-dictionary%\n (class object%\n (super-new)\n \n (init-field)\n \n ; add-word : string? -> void?\n (define/public (add-word word)\n )\n ; search : string? -> boolean?\n (define/public (search word)\n )))\n\n;; Your word-dictionary% object will be instantiated and called as such:\n;; (define obj (new word-dictionary%))\n;; (send obj add-word word)\n;; (define param_2 (send obj search word))",
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"lang": "Erlang",
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"code": "-spec word_dictionary_init_() -> any().\nword_dictionary_init_() ->\n .\n\n-spec word_dictionary_add_word(Word :: unicode:unicode_binary()) -> any().\nword_dictionary_add_word(Word) ->\n .\n\n-spec word_dictionary_search(Word :: unicode:unicode_binary()) -> boolean().\nword_dictionary_search(Word) ->\n .\n\n\n%% Your functions will be called as such:\n%% word_dictionary_init_(),\n%% word_dictionary_add_word(Word),\n%% Param_2 = word_dictionary_search(Word),\n\n%% word_dictionary_init_ will be called before every test case, in which you can do some necessary initializations.",
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"code": "defmodule WordDictionary do\n @spec init_() :: any\n def init_() do\n \n end\n\n @spec add_word(word :: String.t) :: any\n def add_word(word) do\n \n end\n\n @spec search(word :: String.t) :: boolean\n def search(word) do\n \n end\nend\n\n# Your functions will be called as such:\n# WordDictionary.init_()\n# WordDictionary.add_word(word)\n# param_2 = WordDictionary.search(word)\n\n# WordDictionary.init_ will be called before every test case, in which you can do some necessary initializations.",
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"You should be familiar with how a Trie works. If not, please work on this problem: <a href=\"https://leetcode.com/problems/implement-trie-prefix-tree/\">Implement Trie (Prefix Tree)</a> first."
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"sampleTestCase": "[\"WordDictionary\",\"addWord\",\"addWord\",\"addWord\",\"search\",\"search\",\"search\",\"search\"]\n[[],[\"bad\"],[\"dad\"],[\"mad\"],[\"pad\"],[\"bad\"],[\".ad\"],[\"b..\"]]",
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