Nooby and String

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Nooby has a string s, consisting of n lowercase English alphabetic letters. In one operation , he can delete any pair of adjacent letter with same value. For Example "aaabbccd" would become either "abbccd" or "aaaccd" or "aaabbd" after one operation . Nooby wants to reduce s as much as possible . To do this ,he will repeat the above operation as many times it can be performed. Help Nooby out by f

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solution.cppC++17

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