Tree & Ordered Tree

Tree is a non linear data structure in which every data item is attached to several other data items in a way that is specific for reflecting relationships. The data items are not arranged in a sequential structure.

A general tree does not follow any specific order at any level,the nodes are arranged randomly based the relationship.

In ordered tree,nodes are arranged in a specific order at each or certain levels, Eg: Binary Tree, Fibonacci Tree, Factorial Tree