{ "data": { "question": { "questionId": "3934", "questionFrontendId": "3606", "categoryTitle": "Algorithms", "boundTopicId": 3714197, "title": "Coupon Code Validator", "titleSlug": "coupon-code-validator", "content": "

You are given three arrays of length n that describe the properties of n coupons: code, businessLine, and isActive. The ith coupon has:

\n\n\n\n

A coupon is considered valid if all of the following conditions hold:

\n\n
    \n\t
  1. code[i] is non-empty and consists only of alphanumeric characters (a-z, A-Z, 0-9) and underscores (_).
    2. \n\t
  2. businessLine[i] is one of the following four categories: "electronics", "grocery", "pharmacy", "restaurant".
    3. \n\t
  3. isActive[i] is true.
    4. \n
\n\n

Return an array of the codes of all valid coupons, sorted first by their businessLine in the order: "electronics", "grocery", "pharmacy", "restaurant", and then by code in lexicographical (ascending) order within each category.

\n\n

 

\n

Example 1:

\n\n
\n

Input: code = ["SAVE20","","PHARMA5","SAVE@20"], businessLine = ["restaurant","grocery","pharmacy","restaurant"], isActive = [true,true,true,true]

\n\n

Output: ["PHARMA5","SAVE20"]

\n\n

Explanation:

\n\n\n
\n\n

Example 2:

\n\n
\n

Input: code = ["GROCERY15","ELECTRONICS_50","DISCOUNT10"], businessLine = ["grocery","electronics","invalid"], isActive = [false,true,true]

\n\n

Output: ["ELECTRONICS_50"]

\n\n

Explanation:

\n\n\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "优惠券校验器", "translatedContent": "

给你三个长度为 n 的数组，分别描述 n 个优惠券的属性：code、businessLine 和 isActive。其中，第 i 个优惠券具有以下属性：

\n\n\n\n

当以下所有条件都满足时，优惠券被认为是 有效的 ：

\n\n
    \n\t
  1. code[i] 不能为空，并且仅由字母数字字符（a-z、A-Z、0-9）和下划线（_）组成。
    2. \n\t
  2. businessLine[i] 必须是以下四个类别之一：\"electronics\"、\"grocery\"、\"pharmacy\"、\"restaurant\"。
    3. \n\t
  3. isActive[i] 为 true 。
    4. \n
\n\n

返回所有 有效优惠券的标识符 组成的数组，按照以下规则排序：

\n\n\n\n

 

\n\n

示例 1：

\n\n
\n

输入： code = [\"SAVE20\",\"\",\"PHARMA5\",\"SAVE@20\"], businessLine = [\"restaurant\",\"grocery\",\"pharmacy\",\"restaurant\"], isActive = [true,true,true,true]

\n\n

输出： [\"PHARMA5\",\"SAVE20\"]

\n\n

解释：

\n\n\n
\n\n

示例 2：

\n\n
\n

输入： code = [\"GROCERY15\",\"ELECTRONICS_50\",\"DISCOUNT10\"], businessLine = [\"grocery\",\"electronics\",\"invalid\"], isActive = [false,true,true]

\n\n

输出： [\"ELECTRONICS_50\"]

\n\n

解释：

\n\n\n
\n\n

 

\n\n

提示：

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"translatedName": "字符串", "__typename": "TopicTagNode" }, { "name": "Sorting", "slug": "sorting", "translatedName": "排序", "__typename": "TopicTagNode" } ], "companyTagStats": null, "codeSnippets": [ { "lang": "C++", "langSlug": "cpp", "code": "class Solution {\npublic:\n vector validateCoupons(vector& code, vector& businessLine, vector& isActive) {\n \n }\n};", "__typename": "CodeSnippetNode" }, { "lang": "Java", "langSlug": "java", "code": "class Solution {\n public List validateCoupons(String[] code, String[] businessLine, boolean[] isActive) {\n \n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Python", "langSlug": "python", "code": "class Solution(object):\n def validateCoupons(self, code, businessLine, isActive):\n \"\"\"\n :type code: List[str]\n :type businessLine: List[str]\n :type isActive: List[bool]\n :rtype: List[str]\n \"\"\"\n ", "__typename": "CodeSnippetNode" }, { "lang": "Python3", "langSlug": "python3", "code": "class Solution:\n def validateCoupons(self, code: List[str], businessLine: List[str], isActive: List[bool]) -> List[str]:\n ", "__typename": "CodeSnippetNode" }, { "lang": "C", "langSlug": "c", "code": "/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nchar** validateCoupons(char** code, int codeSize, char** businessLine, int businessLineSize, bool* isActive, int isActiveSize, int* returnSize) {\n \n}", "__typename": "CodeSnippetNode" }, { "lang": "C#", "langSlug": "csharp", "code": "public class Solution {\n public IList ValidateCoupons(string[] code, string[] businessLine, bool[] isActive) {\n \n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "JavaScript", "langSlug": "javascript", "code": "/**\n * @param {string[]} code\n * @param {string[]} businessLine\n * @param {boolean[]} isActive\n * @return {string[]}\n */\nvar validateCoupons = function(code, businessLine, isActive) {\n \n};", "__typename": "CodeSnippetNode" }, { "lang": "TypeScript", "langSlug": "typescript", "code": "function validateCoupons(code: string[], businessLine: string[], isActive: boolean[]): string[] {\n \n};", "__typename": "CodeSnippetNode" }, { "lang": "PHP", "langSlug": "php", "code": "class Solution {\n\n /**\n * @param String[] $code\n * @param String[] $businessLine\n * @param Boolean[] $isActive\n * @return String[]\n */\n function validateCoupons($code, $businessLine, $isActive) {\n \n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Swift", "langSlug": "swift", "code": "class Solution {\n func validateCoupons(_ code: [String], _ businessLine: [String], _ isActive: [Bool]) -> [String] {\n \n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Kotlin", "langSlug": "kotlin", "code": "class Solution {\n fun validateCoupons(code: Array, businessLine: Array, isActive: BooleanArray): List {\n \n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Dart", "langSlug": "dart", "code": "class Solution {\n List validateCoupons(List code, List businessLine, List isActive) {\n \n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Go", "langSlug": "golang", "code": "func validateCoupons(code []string, businessLine []string, isActive []bool) []string {\n \n}", "__typename": "CodeSnippetNode" }, { "lang": "Ruby", "langSlug": "ruby", "code": "# @param {String[]} code\n# @param {String[]} business_line\n# @param {Boolean[]} is_active\n# @return {String[]}\ndef validate_coupons(code, business_line, is_active)\n \nend", "__typename": "CodeSnippetNode" }, { "lang": "Scala", "langSlug": "scala", "code": "object Solution {\n def validateCoupons(code: Array[String], businessLine: Array[String], isActive: Array[Boolean]): List[String] = {\n \n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Rust", "langSlug": "rust", "code": "impl Solution {\n pub fn validate_coupons(code: Vec, business_line: Vec, is_active: Vec) -> Vec {\n \n }\n}", "__typename": "CodeSnippetNode" }, { "lang": "Racket", "langSlug": "racket", "code": "(define/contract (validate-coupons code businessLine isActive)\n (-> (listof string?) (listof string?) (listof boolean?) (listof string?))\n )", "__typename": "CodeSnippetNode" }, { "lang": "Erlang", "langSlug": "erlang", "code": "-spec validate_coupons(Code :: [unicode:unicode_binary()], BusinessLine :: [unicode:unicode_binary()], IsActive :: [boolean()]) -> [unicode:unicode_binary()].\nvalidate_coupons(Code, BusinessLine, IsActive) ->\n .", "__typename": "CodeSnippetNode" }, { "lang": "Elixir", "langSlug": "elixir", "code": "defmodule Solution do\n @spec validate_coupons(code :: [String.t], business_line :: [String.t], is_active :: [boolean]) :: [String.t]\n def validate_coupons(code, business_line, is_active) do\n \n end\nend", "__typename": "CodeSnippetNode" }, { "lang": "Cangjie", "langSlug": "cangjie", "code": "class Solution {\n func validateCoupons(code: Array, businessLine: Array, isActive: Array): ArrayList {\n\n }\n}", "__typename": "CodeSnippetNode" } ], "stats": "{\"totalAccepted\": \"2.4K\", \"totalSubmission\": \"4.4K\", \"totalAcceptedRaw\": 2402, \"totalSubmissionRaw\": 4379, \"acRate\": \"54.9%\"}", "hints": [ "Filter out any coupon where isActive[i] is false, code[i] is empty or contains non‑alphanumeric/underscore chars, or businessLine[i] is not in the allowed set", "Store each remaining coupon as a pair (businessLine[i], code[i])", "Define a priority map, e.g. {\"electronics\":0, \"grocery\":1, \"pharmacy\":2, \"restaurant\":3}", "Sort the list of pairs by (priority[businessLine], code) and return the code values in order" ], "solution": null, "status": null, "sampleTestCase": "[\"SAVE20\",\"\",\"PHARMA5\",\"SAVE@20\"]\n[\"restaurant\",\"grocery\",\"pharmacy\",\"restaurant\"]\n[true,true,true,true]", "metaData": "{\n \"name\": \"validateCoupons\",\n \"params\": [\n {\n \"name\": \"code\",\n \"type\": \"string[]\"\n },\n {\n \"type\": \"string[]\",\n \"name\": \"businessLine\"\n },\n {\n \"type\": \"boolean[]\",\n \"name\": \"isActive\"\n }\n ],\n \"return\": {\n \"type\": \"list\"\n },\n \"manual\": false\n}", "judgerAvailable": true, "judgeType": "large", "mysqlSchemas": [], "enableRunCode": true, "envInfo": "{\"cpp\":[\"C++\",\"

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\\u7f16\\u8bd1\\u53c2\\u6570\\uff1a-O2 --disable-reflection<\\/code><\\/p>\\r\\n\\r\\n
\\u5feb\\u901f\\u5165\\u95e8\\u8bf7\\u67e5\\u9605\\u300c\\u4ed3\\u9889\\u7f16\\u7a0b\\u8bed\\u8a00\\u5f00\\u53d1\\u6307\\u5357\\u300d<\\/a><\\/p>\"]}",
            "book": null,
            "isSubscribed": false,
            "isDailyQuestion": false,
            "dailyRecordStatus": null,
            "editorType": "CKEDITOR",
            "ugcQuestionId": null,
            "style": "LEETCODE",
            "exampleTestcases": "[\"SAVE20\",\"\",\"PHARMA5\",\"SAVE@20\"]\n[\"restaurant\",\"grocery\",\"pharmacy\",\"restaurant\"]\n[true,true,true,true]\n[\"GROCERY15\",\"ELECTRONICS_50\",\"DISCOUNT10\"]\n[\"grocery\",\"electronics\",\"invalid\"]\n[false,true,true]",
            "__typename": "QuestionNode"
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    }
}