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add some exs

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Mia von Steinkirch 2019-05-12 21:23:24 -07:00
parent 0d5e21b867
commit 9b4c8df7f7
7 changed files with 85 additions and 1 deletions
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25
interview_cake/palindrome.py
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#!/usr/bin/env python
"""
Write an efficient function that checks whether
any permutation of an input string is a palindrome.
"""
def has_palindrome_permutation(the_string):
unpaired_characters = set()
for char in the_string:
if char in unpaired_characters:
unpaired_characters.remove(char)
else:
unpaired_characters.add(char)
return len(unpaired_characters) <= 1
str1 = "civic"
print has_palindrome_permutation(str1)
print "Should be True"
str2 = "ivilc"
print has_palindrome_permutation(str2)
print "Should be False"