30 lines
606 B
Python
30 lines
606 B
Python
# import re
|
|
#
|
|
# with open('24_7.txt', 'r') as file:
|
|
# data = file.readline()
|
|
#
|
|
# data = re.sub('CD', '--', data)
|
|
#
|
|
# not_CD = r'(-?[^-]*)'
|
|
#
|
|
# CD_and_any = r'(?:--[^-]*){160}-?'
|
|
# la_CD_group = rf'(?=({CD_and_any}))'
|
|
#
|
|
# pattern = rf'{not_CD}{la_CD_group}'
|
|
#
|
|
# matches = re.findall(pattern, data)
|
|
#
|
|
# res = max([len(match[0] + match[1])
|
|
# for match in matches])
|
|
|
|
|
|
s = open('24_7.txt').readline().strip()
|
|
pos = [-1]
|
|
for p in range(len(s) - 1):
|
|
if s[p]+s[p+1] == 'CD':
|
|
pos.append(p)
|
|
pos.append(len(s) - 1)
|
|
ml = 0
|
|
for p, p1 in zip(pos, pos[161:]):
|
|
ml = max(ml, p1 - p)
|
|
print(ml) |