Package g3601_3700.s3606_coupon_code_validator

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    3606 - Coupon Code Validator.

    Easy

    You are given three arrays of length n that describe the properties of n coupons: code, businessLine, and isActive. The <code>i<sup>th</sup></code> coupon has:

    • code[i]: a string representing the coupon identifier.

    • businessLine[i]: a string denoting the business category of the coupon.

    • isActive[i]: a boolean indicating whether the coupon is currently active.

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

    • code[i] is non-empty and consists only of alphanumeric characters (a-z, A-Z, 0-9) and underscores (_).

    • businessLine[i] is one of the following four categories: "electronics", "grocery", "pharmacy", "restaurant".

    • isActive[i] is true.

    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.

    Example 1:

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

    Output: "PHARMA5","SAVE20"

    Explanation:

    • First coupon is valid.

    • Second coupon has empty code (invalid).

    • Third coupon is valid.

    • Fourth coupon has special character @ (invalid).

    Example 2:

    Input: code = "GROCERY15","ELECTRONICS\_50","DISCOUNT10", businessLine = "grocery","electronics","invalid", isActive = false,true,true

    Output: "ELECTRONICS\_50"

    Explanation:

    • First coupon is inactive (invalid).

    • Second coupon is valid.

    • Third coupon has invalid business line (invalid).

    Constraints:

    • n == code.length == businessLine.length == isActive.length

    • 1 &lt;= n &lt;= 100

    • 0 &lt;= code[i].length, businessLine[i].length &lt;= 100

    • code[i] and businessLine[i] consist of printable ASCII characters.

    • isActive[i] is either true or false.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final List<String> validateCoupons(Array<String> code, Array<String> businessLine, BooleanArray isActive)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait