Write a functionstring middle(string str)that returns a string containing the middle character in str if the length of str is odd,or the two middle characters if the length is even. For example, middle("middle")returns "dd" .
Question
Write a functionstring middle(string str)that returns a string containing the middle character in str if the length of str is odd,or the two middle characters if the length is even. For example, middle("middle")returns "dd" .
Solution
Sure, here is a Python function that does what you asked for:
def middle(str):
length = len(str)
if length % 2 == 0:
return str[length // 2 - 1:length // 2 + 1]
else:
return str[length // 2]
This function works by first determining the length of the input string. If the length is even, it returns the two middle characters by slicing the string at the appropriate indices. If the length is odd, it returns the single middle character.
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