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Longest Symmetric String (25)

[编程题]Longest Symmetric String (25)
  • 热度指数：1689 时间限制：C/C++ 1秒，其他语言2秒 空间限制：C/C++ 64M，其他语言128M
  • 算法知识视频讲解
Given a string, you are supposed to output the length of the longest symmetric sub-string. For example, given "Is PAT&TAP symmetric?", the longest symmetric sub-string is "s PAT&TAP s", hence you must output 11.

输入描述:
Each input file contains one test case which gives a non-empty string of length no more than 1000.


输出描述:
For each test case, simply print the maximum length in a line.
示例1

输入

Is PAT&TAP symmetric?

输出

11
算法知识视频讲解
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