Calculates the difference between each pair of consecutive elements, stores the result in the first element of the pair.
template <typename... Elements>
void adjacent_difference(Elements&&... elements);The difference is found by subtracting the left element from the right element
for each pair. The return type for operator-(...) has to be assignable to the
first element of the pair. The last element in the pack remains unmodified.
❌ hal::reverse::adjacent_difference(...)
✔️ Modifying Algorithm