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Binary Tree Node Class reference

debugcn Published at Dev
14
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I am learning binary tree and I am trying to understand why is Node left calling class Node again.

Eg:

class Node
{
   Node left, right;
   int data;
}

Why is Node calling Node and why it isn't int Node.

Justin Skiles

A binary tree is simply a structure that contains 0 to 2 references to the same type of object linked together. For example, this poorly drawn diagram:

  10
 /  \
1    5
    / \
   3   6

10 is a Node with:

  • left references a Node with value 1.
  • right references to a Node with value 5.

The other nodes are similar.

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