gistfile1.cpp

template<typename InputIterator>
inline typename InputIterator::value_type sum(InputIterator first, InputIterator last)
{
        typename InputIterator::value_type init{};
	return std::accumulate(first, last, init);
}

template<typename Container>
inline typename Container::value_type sum(const Container& cont)
{
	typename Container::value_type init{};
	return std::accumulate(std::begin(cont), std::end(cont), init);
}