feat(m3): add solution exe 002-recursive-decimal-to-binary #19
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The aim of this exercise is to convert a non-negative number to a binary number using recursion.
In the decimal-to-binary function, the base case is represented by the user number, which is 0 or 1.
The recursive step is to divide the user number by 2 until the last number obtained is either 0 or 1. The remainder of the division by 2 to the end of the resulting string must be added to the recursive function.
Outside the function, I have also included the case where the user enters a negative number.