Thankfully, Ruby automatically converts ints to Bignums when it detects an overflow, so the Ruby solution is as simple as:
def big_add(a, b) (a.to_i + b.to_i).to_s end def big_sub(a, b) (a.to_i - b.to_i).to_s end
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Thankfully, Ruby automatically converts ints to Bignums when it detects an overflow, so the Ruby solution is as simple as: