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47. Is MAC48 Address?

Dududoo on Python_codesignal


Task

A media access control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment.

The standard (IEEE 802) format for printing MAC-48 addresses in human-friendly form is six groups of two hexadecimal digits (0 to 9 or A to F), separated by hyphens (e.g. 01-23-45-67-89-AB).

Your task is to check by given string inputString whether it corresponds to MAC-48 address or not.

Example

  • For inputString = "00-1B-63-84-45-E6", the output should be
    isMAC48Address(inputString) = true;

  • For inputString = "Z1-1B-63-84-45-E6", the output should be
    isMAC48Address(inputString) = false;

  • For inputString = "not a MAC-48 address", the output should be
    isMAC48Address(inputString) = false.

Input/Output

  • [execution time limit]
    4 seconds (py3)

  • [input] string inputString
    Guaranteed constraints: 15 ≤ inputString.length ≤ 20.

  • [output] boolean
    true if inputString corresponds to MAC-48 address naming rules, false otherwise.

My Solution

def isMAC48Address(inputString):
    inputS = inputString.split('-')
    valid = [str(i) for i in range(10)] + ['A', 'B', 'C', 'D', 'E', 'F']
    if len(inputS) == 6:
        for element in inputS:
            if len(element) == 2 and (element[0] in valid) and (element[1] in valid):
                continue
            else:
                return False
        return True
    return False