mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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184 lines
17 KiB
JSON
184 lines
17 KiB
JSON
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"title": "Most Common Word",
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"titleSlug": "most-common-word",
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"content": "<p>Given a string <code>paragraph</code> and a string array of the banned words <code>banned</code>, return <em>the most frequent word that is not banned</em>. It is <strong>guaranteed</strong> there is <strong>at least one word</strong> that is not banned, and that the answer is <strong>unique</strong>.</p>\n\n<p>The words in <code>paragraph</code> are <strong>case-insensitive</strong> and the answer should be returned in <strong>lowercase</strong>.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> paragraph = "Bob hit a ball, the hit BALL flew far after it was hit.", banned = ["hit"]\n<strong>Output:</strong> "ball"\n<strong>Explanation:</strong> \n"hit" occurs 3 times, but it is a banned word.\n"ball" occurs twice (and no other word does), so it is the most frequent non-banned word in the paragraph. \nNote that words in the paragraph are not case sensitive,\nthat punctuation is ignored (even if adjacent to words, such as "ball,"), \nand that "hit" isn't the answer even though it occurs more because it is banned.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> paragraph = "a.", banned = []\n<strong>Output:</strong> "a"\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= paragraph.length <= 1000</code></li>\n\t<li>paragraph consists of English letters, space <code>' '</code>, or one of the symbols: <code>"!?',;."</code>.</li>\n\t<li><code>0 <= banned.length <= 100</code></li>\n\t<li><code>1 <= banned[i].length <= 10</code></li>\n\t<li><code>banned[i]</code> consists of only lowercase English letters.</li>\n</ul>\n",
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"exampleTestcases": "\"Bob hit a ball, the hit BALL flew far after it was hit.\"\n[\"hit\"]\n\"a.\"\n[]",
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"code": "class Solution(object):\n def mostCommonWord(self, paragraph, banned):\n \"\"\"\n :type paragraph: str\n :type banned: List[str]\n :rtype: str\n \"\"\"\n ",
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"code": "class Solution {\n\n /**\n * @param String $paragraph\n * @param String[] $banned\n * @return String\n */\n function mostCommonWord($paragraph, $banned) {\n \n }\n}",
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"code": "# @param {String} paragraph\n# @param {String[]} banned\n# @return {String}\ndef most_common_word(paragraph, banned)\n \nend",
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"code": "object Solution {\n def mostCommonWord(paragraph: String, banned: Array[String]): String = {\n \n }\n}",
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"code": "impl Solution {\n pub fn most_common_word(paragraph: String, banned: Vec<String>) -> String {\n \n }\n}",
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"code": "(define/contract (most-common-word paragraph banned)\n (-> string? (listof string?) string?)\n )",
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"lang": "Erlang",
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"langSlug": "erlang",
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"code": "-spec most_common_word(Paragraph :: unicode:unicode_binary(), Banned :: [unicode:unicode_binary()]) -> unicode:unicode_binary().\nmost_common_word(Paragraph, Banned) ->\n .",
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"code": "defmodule Solution do\n @spec most_common_word(paragraph :: String.t, banned :: [String.t]) :: String.t\n def most_common_word(paragraph, banned) do\n \n end\nend",
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"sampleTestCase": "\"Bob hit a ball, the hit BALL flew far after it was hit.\"\n[\"hit\"]",
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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>. 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