Question

Using Python provide the implementation of a function called "isAdjacent" that accepts a string.   The function checks if two adjacent characters in the string are the same; if they are the same, then return True otherwise return False.   The function should ignore case and check for non-empty string.  If it's an empty string, then return the message 'Empty string'.

Sample runs:

print( isAdjacent('ApPle')) # True
print( isAdjacent('Python')) # False
print( isAdjacent('')) # Empty string

Answer 1

Thanks for the question.

Below is the code you will be needing  Let me know if you have any doubts or if you need anything to change.

Thank You !!

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def isAdjacent(word):
    if len(word)==0:
        return 'Empty string'

    lowercase_word=word.lower()
     # for loop that ranges from 0 to len of word -1
    for i in range(len(lowercase_word)-1):
        # check the current index letter with the next letter
        # if both are same return True
        if lowercase_word[i]==lowercase_word[i+1]:
            return True
    # if its not true above return false
    return False

print( isAdjacent('ApPle')) # True
print( isAdjacent('Python')) # False
print( isAdjacent('')) # Empty string

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