Develop an algorithm, using either pseudo-code or a flowchart, that:

• initialises a variable called validCode to False
• sets the variable validCode to True if the string contained in the variable pCode is exactly 2 characters in length, begins with an uppercase P, and has a single numeric digit as its second character

Examples:

• If the value of pCode is "P4" or "P0", then validCode should be True
• If the value of pCode is "p4", "Px", or "P42", then validCode should be False

You may wish to use the following in your answer:

• The subroutine isDigit(ch) which returns True if the character ch is a digit (e.g., "0" to "9") and False otherwise.
• The function length(string) which returns the number of characters in a string.