A number is called 8-substring-friendly if every one of its digits belongs to a 8-substring. For example, 352114 is 8-substring-friendly, but 26(5)44 is not. For a given n, find T(n) the number of ...
- Input Parameters: - Original string - Substring to check for - Example: contains ("Mendix is awesome", "is") - Output: true 7. startsWith (): - Checks if a string starts with a prefix.