Palindrome

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You are given a string S containing only lowercase characters. You can rearrange the string and you have to print minimum number of characters needed(can be 0) to make it palindrome. ###Input: - First line contain an interger T denoting number of testcases. - First line of each testcase contains integer N, size of string. - Second line of each testcase contains string S. ###Output:

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solution.cppC++17

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