擅长:python、mysql、java
<p>如果某个字符出现三次,以上代码将失败。尝试<code>abcabccddd</code></p>
<p>稍作修改以解决问题:</p>
<pre><code>def checkPalindromPermutation(word):
values = collections.Counter(word).values()
if sum((v % 2) for v in values) > 1 or any(v > 2 for v in values):
return False
return True
</code></pre>