Musician

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DJ wants to become a professional singer.He considers every character as a tone of music and likes to play with it. DJ considers a string, s , to be valid if either of the following conditions are satisfied: 1.All characters in s have the same exact frequency (i.e., occur the same number of times). For example, s="aabbcc" is valid, but s="baacdd" is not valid. 2.Deleting exactly 1 character from

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solution.cppC++17

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