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[2406]Power Strings (POJ) KMP

2014-09-11 22:40 429 查看





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Power Strings

Time Limit: 3000MSMemory Limit: 65536K
Total Submissions: 32710Accepted: 13635
Description

Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "def" then a*b = "abcdef". If we think of concatenation as multiplication, exponentiation by a non-negative
integer is defined in the normal way: a^0 = "" (the empty string) and a^(n+1) = a*(a^n).
Input

Each test case is a line of input representing s, a string of printable characters. The length of s will be at least 1 and will not exceed 1 million characters. A line containing a period follows the
last test case.
Output

For each s you should print the largest n such that s = a^n for some string a.

Sample Input

1
4
3


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