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Lucy has been gifted a string S, by her best friend. Now, She is going to write all the sub-strings of different lengths on different pages of her diary. So, she writes the sub-strings of length 1 on page 1, substrings of length 2 on page 2 and so on. While writing out the sub-strings, she notices that several of them are repeated. She gets frustrated from writing the same string several times, a

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solution.cppC++17

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