Milline on aja mõõt operatsiooni lisada element kahepoolse loendi keskossa?

Element insertion in the middle part of a doubly linked list usually requires first finding the insertion position, which takes O(n) time, as you need to traverse the list to the desired node.

The insertion process itself (changing the pointers of neighboring nodes) is performed in O(1).

In summary:

• Finding the position — O(n)
• Insertion — O(1)

If the position is already known (for example, you have a pointer to a node), then insertion will be O(1). If not, you first need to traverse the list, which results in O(n).