Avenir Palindromes
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The string t1t2…tk is good if each letter of this string belongs to at least one palindrome of length greater than 1. A palindrome is a string that reads the same backward as forward. For example, the strings A, BAB, ABBA, BAABBBAAB are palindromes, but the strings AB, ABBBAA, BBBA are not. Here are some examples of good strings: t = AABBB (letters t1, t2 belong to palindrome t1…t2 and le
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solution.cppC++17
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