题目
找出字母出现最多的字母
思路
用hash表
代码
def lettercount(s):freq = {}for p in s:word = ''.join(c for c in p if c.isalpha())if word:freq[word] = 1 + freq.get(word,0)max_word = ''max_count = 0for key,value in freq.items():if value>max_count:max_count = valuemax_word = keyprint(max_word)print(max_count)