Description: Palindrome string is from left to right and right to left the same string. Now only given a string of lowercase letters, you can put it to rearrange the letters to form different palindrome string.* Input: only by a non-empty string consisting of lowercase letters, the length does not exceed 100 Output: palindrome string can be composed of all the number (because the result can be very large, the output on 1000000007 to take the remainder of the results).* For example: Enter " aabb" output is 2 (because " aabb" all corresponding palindrome string has two: abba and baab)
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回文算法.java
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