Count the number of elements in a Set<String> that match a specific pattern. The pattern is a string that can be found at the beginning, end, or within the elements.

Examples:

Input: set = {"ApexClass", "ApexTrigger", "CustomObject", "ApexPage"} pattern = "Apex" Output: 3 Explanation: "ApexClass", "ApexTrigger", and "ApexPage" all contain "Apex" Input: set = {"Contact", "Account", "Opportunity", "Lead"} pattern = "t" Output: 2 Explanation: "Contact" and "Opportunity" both contain the letter "t"
Apex Code Editor

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How It Works

  • • Write your solution in the code editor
  • • Connect your Salesforce org to test
  • • Submit to check if your solution passes
  • • Use hints if you get stuck

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