LeetCode Sort Characters By Frequency
2016-11-19 18:21
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题意:给出一个字符串s,按字符出现频率排序
代码如下:
class Solution(object):
def frequencySort(self, s):
"""
:type s: str
:rtype: str
"""
from collections import Counter
return "".join(x*f for(x,f) in Counter(s).most_common())
代码如下:
class Solution(object):
def frequencySort(self, s):
"""
:type s: str
:rtype: str
"""
from collections import Counter
return "".join(x*f for(x,f) in Counter(s).most_common())
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