Ben and the Palindrome

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Ben is a student in Coderland's best university. To pass the final examination he was given a string S by his teacher. The teacher said that the test will consist of any number of questions and each question will contain two integers l and r. Ben will receive 1 point if the substring {Sl, Sl+1,..., Sr} is a palindrome. Ben has a little time before the test starts and he is capable of changing one

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solution.cppC++17

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