A Lovely Number

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We define a number as Lovely number if it repeats certain number twice in its binary representation and there is no other bit. For example, binary representation 10 is “ 1010” . As you can see 10 is repeating exactly twice, so it is a Lovely number. Another example, binary representation of 21 is “10101”. Here 10 is repeating twice but there is an extra 1 at the end. So, 21 is not a Lovely numbe

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solution.cppC++17

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