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Harry and magic stringTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 953 Accepted Submission(s): 470 Problem Description Harry got a string T, he wanted to know the number of T¡¯s disjoint palindrome substring pairs. A string is considered to be palindrome if and only if it reads the same backward or forward. For two substrings of $T: \, x = T[a_1 \ldots b_1], \, y = T[a_2 \ldots b_2]$(where a1 is the beginning index of $x, b_1$ is the ending index of x. $a_2, b_2$ as the same of y), if both x and y are palindromes and $b_1 < a_2 \text{ or } b_2 < a_1$ then we consider (x, y) to be a disjoint palindrome substring pair of T. Input There are several cases. For each test case, there is a string T in the first line, which is composed by lowercase characters. The length of T is in the range of [1,100000]. Output For each test case, output one number in a line, indecates the answer. Sample Input
Sample Output
Hint For the first test case there are 4 palindrome substrings of T. They are: S1=T[0,0] S2=T[0,2] S3=T[1,1] S4=T[2,2] And there are 3 disjoint palindrome substring pairs. They are: (S1,S3) (S1,S4) (S3,S4). So the answer is 3. Source | ||||||||||
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