Sobes.tech
Middle+

Mis on TreeMap-i sisestus (put) algoritmi keerukus?

sobes.tech AI

Vastus AI-lt

In Java, the TreeMap class is implemented based on a red-black tree, a balanced binary search tree.

The complexity of the insert operation (put) in TreeMap is O(log n), where n is the number of elements in the map.

This is because, to insert:

  • Find the position for the new key (search in the tree) — O(log n).
  • Insert the element and, if necessary, balance the tree (rotations and recoloring) — also O(log n) in the worst case.

Therefore, insertion into TreeMap is efficient and scalable due to its balanced data structure.