mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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162 lines
17 KiB
JSON
162 lines
17 KiB
JSON
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"questionId": "2373",
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"questionFrontendId": "2288",
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"title": "Apply Discount to Prices",
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"titleSlug": "apply-discount-to-prices",
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"content": "<p>A <strong>sentence</strong> is a string of single-space separated words where each word can contain digits, lowercase letters, and the dollar sign <code>'$'</code>. A word represents a <strong>price</strong> if it is a sequence of digits preceded by a dollar sign.</p>\n\n<ul>\n\t<li>For example, <code>"$100"</code>, <code>"$23"</code>, and <code>"$6"</code> represent prices while <code>"100"</code>, <code>"$"</code>, and <code>"$1e5"</code> do not.</li>\n</ul>\n\n<p>You are given a string <code>sentence</code> representing a sentence and an integer <code>discount</code>. For each word representing a price, apply a discount of <code>discount%</code> on the price and <strong>update</strong> the word in the sentence. All updated prices should be represented with <strong>exactly two</strong> decimal places.</p>\n\n<p>Return <em>a string representing the modified sentence</em>.</p>\n\n<p>Note that all prices will contain <strong>at most</strong> <code>10</code> digits.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> sentence = "there are $1 $2 and 5$ candies in the shop", discount = 50\n<strong>Output:</strong> "there are $0.50 $1.00 and 5$ candies in the shop"\n<strong>Explanation:</strong> \nThe words which represent prices are "$1" and "$2". \n- A 50% discount on "$1" yields "$0.50", so "$1" is replaced by "$0.50".\n- A 50% discount on "$2" yields "$1". Since we need to have exactly 2 decimal places after a price, we replace "$2" with "$1.00".\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> sentence = "1 2 $3 4 $5 $6 7 8$ $9 $10$", discount = 100\n<strong>Output:</strong> "1 2 $0.00 4 $0.00 $0.00 7 8$ $0.00 $10$"\n<strong>Explanation:</strong> \nApplying a 100% discount on any price will result in 0.\nThe words representing prices are "$3", "$5", "$6", and "$9".\nEach of them is replaced by "$0.00".\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= sentence.length <= 10<sup>5</sup></code></li>\n\t<li><code>sentence</code> consists of lowercase English letters, digits, <code>' '</code>, and <code>'$'</code>.</li>\n\t<li><code>sentence</code> does not have leading or trailing spaces.</li>\n\t<li>All words in <code>sentence</code> are separated by a single space.</li>\n\t<li>All prices will be <strong>positive</strong> integers without leading zeros.</li>\n\t<li>All prices will have <strong>at most</strong> <code>10</code> digits.</li>\n\t<li><code>0 <= discount <= 100</code></li>\n</ul>\n",
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"difficulty": "Medium",
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"exampleTestcases": "\"there are $1 $2 and 5$ candies in the shop\"\n50\n\"1 2 $3 4 $5 $6 7 8$ $9 $10$\"\n100",
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"code": "class Solution {\npublic:\n string discountPrices(string sentence, int discount) {\n \n }\n};",
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"code": "class Solution {\n public String discountPrices(String sentence, int discount) {\n \n }\n}",
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"code": "class Solution(object):\n def discountPrices(self, sentence, discount):\n \"\"\"\n :type sentence: str\n :type discount: int\n :rtype: str\n \"\"\"\n ",
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"code": "/**\n * @param {string} sentence\n * @param {number} discount\n * @return {string}\n */\nvar discountPrices = function(sentence, discount) {\n \n};",
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"code": "# @param {String} sentence\n# @param {Integer} discount\n# @return {String}\ndef discount_prices(sentence, discount)\n \nend",
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"code": "object Solution {\n def discountPrices(sentence: String, discount: Int): String = {\n \n }\n}",
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"code": "class Solution {\n fun discountPrices(sentence: String, discount: Int): String {\n \n }\n}",
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"code": "impl Solution {\n pub fn discount_prices(sentence: String, discount: i32) -> String {\n \n }\n}",
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"code": "class Solution {\n\n /**\n * @param String $sentence\n * @param Integer $discount\n * @return String\n */\n function discountPrices($sentence, $discount) {\n \n }\n}",
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"code": "function discountPrices(sentence: string, discount: number): string {\n\n};",
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"code": "(define/contract (discount-prices sentence discount)\n (-> string? exact-integer? string?)\n\n )",
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"lang": "Erlang",
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"langSlug": "erlang",
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"code": "-spec discount_prices(Sentence :: unicode:unicode_binary(), Discount :: integer()) -> unicode:unicode_binary().\ndiscount_prices(Sentence, Discount) ->\n .",
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"code": "defmodule Solution do\n @spec discount_prices(sentence :: String.t, discount :: integer) :: String.t\n def discount_prices(sentence, discount) do\n\n end\nend",
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"stats": "{\"totalAccepted\": \"11.9K\", \"totalSubmission\": \"45.7K\", \"totalAcceptedRaw\": 11896, \"totalSubmissionRaw\": 45719, \"acRate\": \"26.0%\"}",
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"hints": [
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"Extract each word from the sentence and check if it represents a price.",
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"For each price, apply the given discount to it and update it."
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],
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"sampleTestCase": "\"there are $1 $2 and 5$ candies in the shop\"\n50",
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