Delete And Append

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Jack and you are friends . One fine day Jack challenged you to solve a problem . Jack gives a string s, and you can do two types of operations on it: ● Delete the last character of the string. ● Duplicate the string: s:=s+s, where + denotes concatenation. You can use each operation any number of times (possibly none). Your task is to find the lexicographically smallest string of length exactly

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solution.cppC++17

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