x-string

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kennyS and Shoxie are back with a new game. This time, Shoxie gives kennyS a string S. It consists of only lowercase English letters. Since Shoxie loves palindromes a lot, he lets kennyS insert any number of character ‘x’ in the string anywhere (including the beginning and ending index). Help kennyS turn the given string S into a palindrome by inserting minimum number of ‘x’s (maybe 0). If he can’

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solution.cppC++17

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