\819. Most Common Word
class Solution:
def mostCommonWord(self, paragraph: str, banned: List[str]) -> str:
## 这题就烦, 数据处理
for ch in string.punctuation: paragraph = paragraph.replace(ch, " ")
p = list(map(lambda x : x.lower(),paragraph.split()))
cp = collections.Counter(i for i in p if i not in banned)
return cp.most_common(1)[0][0]\414. Third Maximum Number
class Solution:
def thirdMax(self, nums: List[int]) -> int:
## 这个与top k 最大不同就是k 是定值
f_ = s_ = t_ = -2 << 32
for n in nums:
if n > t_ : # 大于3rd
if n > s_: # 大于2nd
if n > f_: # 大于1st
t_ = s_
s_ = f_
f_ = n ## top3 都换人
elif n < f_:
t_ = s_
s_ = n
elif n < s_:
t_ = n
## 最后检查
if t_ == (-2 << 32):
return f_
else:
return t_