Max and Palindromes

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Max has recently studied about palindromes and yesterday he came across a simple problem in which he was given a string $S$ and he had to report the total number of unique palindromes of length 3 which can be formed by using the characters of the string. Note – The string contains only lowercase characters. ###Input: - A single string S. ###Output: Total number of unique palindromes o

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solution.cppC++17

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