Description: Known integers a, b, assuming the function succ (x) = x+1, pred (x) = x-1, allowed the direct use of' +' ,' -' operational symbol, also not allowed to use the loop, only use the function succ (x) and pred (x), test preparation calculate a+ b, ab recursive function add (a, b), snb (a, b), and in the main program verify the correctness of the function.
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1\1.cpp
.\11.cpp
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