create a b+ tree in swift

To create a B+ tree in Swift, you need to define a class for the nodes and implement the necessary methods for insertion, deletion, and search. Here's an example implementation:

main.swift
class BPlusTree<Key: Comparable, Value> {
    class Node {
        var isLeaf: Bool
        
        init(isLeaf: Bool = false) {
            self.isLeaf = isLeaf
        }
    }
    
    // Your implementation for insertion, deletion, search, and other methods here
}
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The BPlusTree class defines the overall structure of the B+ tree. Within this class, we define an inner Node class that represents the individual nodes in the tree. The Node class has a boolean property isLeaf to indicate whether it is a leaf node or an internal node.

You can then add methods to the BPlusTree class for insertion, deletion, search, and any other operation you want to support with the B+ tree.

Please note that the above code is just a starting point and does not include the complete implementation of a B+ tree. You will need to write additional code to handle splitting and merging of nodes, key-value mapping, and other functionalities required for a B+ tree.