Nodes hold 1 or 2 keys (2-node or 3-node). All leaves stay at the same depth. Insertion is bottom-up splitting: overfilled nodes split and promote their middle key to the parent. Splits cascade up; a root split grows the tree by one level.
Insert
Search
Presets
Normal
0
Keys
0
Depth
0
3-Nodes
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2-Nodes
Try it: Load "Ascending" to see how the tree always grows upward from the root. Every leaf is at the same depth, no rotations needed!