题解 | #密码截取#
密码截取
https://www.nowcoder.com/practice/3cd4621963e8454594f00199f4536bb1
s = input()
p = 0
for i in range(len(s)):
for j in range(len(s)-1,i+1,-1):
if s[i] == s[j] and s[i+1:j] == s[j-1:i:-1] and j-i+1 > p:
p = j-i+1
print(p)
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