#31631: Python 狀態機解法
seer852741@gmail.com
(St418)
學校
:
國立中央大學
編號 : 170226
來源 : [114.24.161.39]
最後登入時間 ：
2024-01-05 19:57:56
k = int(input())
text = input()
case = text[0].isupper()
accumulation = 0
state = 0
max_state = 0
for t in text:
if t.isupper() is case:
accumulation = (accumulation + 1) % k
if not accumulation:
case = not case
state += k
if state > max_state:
max_state = state
elif accumulation:
case = not case
accumulation = 1
state = 0
else:
state = k
print(max_state)
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