Roman Numerals: Step 5

To pass this test, we need to handle the IV case specially. We could either that do that before the for loop or after. If we do it after, we’d be doing some work for nothing and throwing it away, which doesn’t feel right. So we’ll do the special handling first.

struct Convert
{
    static const std::string ToRoman(int n)
    {
        if (n == 4)
            return "IV";

        std::string s;
        for (int i=0; i<n; ++i)
            s += "I";
        return s;
    }
};

Nothing to refactor that I can see.

Go ahead and move the /* down below the 5. Build and test: it should fail like this: Assert failed. Expected:<V> Actual:<IIIII>.

Write just enough code to pass these 5 test cases. Then click Next.