0066 - Plus One.cpp

class Solution
{
public:
    vector<int> plusOne(vector<int>& digits)
    {
        int carry{1};
        for (int i = digits.size() - 1; i >= 0; --i)
        {
            auto digit = digits[i] + carry;
            digits[i] = digit % 10;
            carry = digit / 10;
        }

        if (carry)
            digits.insert(digits.begin(), carry);

        return std::move(digits);
    }
};