Question: Create a C + + file with the name problem 4 . cpp . Write the function unlucky using recursion, which returns true if the

Create a C++ file with the name problem4.cpp.
Write the function unlucky using recursion, which returns true if the first two (leftmost) digits of the positive integer parameter add up to 13, else returns false.
The function unlucky returns false if the parameter has fewer than 2 digits.

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