Tree Data Structure

Trie in DSA

What is a Trie in DSA? A trie, often known as a prefix tree, is a tree-like data structure used for fast string searching and prefix matching. It allows for the quick retrieval of words or keys connected with each node. The word Trie is derived from reTRIEval, which means finding something or obtaining it. […]

Trie in DSA

What is the Lowest Common Ancestor? In a tree, the lowest common ancestor (LCA) of two nodes, n1 and n2, is the shared ancestor located farthest from the root and has both n1 and n2 as descendants. Properties of the Lowest Common Ancestor: An LCA can be one of the input nodes themselves if one […]

Trie in DSA

Binary Tree Structure: A binary tree is a tree data structure where each node has at most two children: a left child and a right child. The topmost node of a binary tree is called the root node. Each node in a binary tree can have either zero, one, or two child nodes. The child […]

Trie in DSA

There are various varieties of trees that are often used in the context of Data Structures and Algorithms (DSA). Here are a few of the most important: Binary Tree: A binary tree is a type of tree data structure in which each node can only have two children. The left child is the left subtree, […]

Trie in DSA

What is Tree Data Structure? A tree data structure is made up of nodes that are connected via edges. The root node is the topmost node in a tree, and it is connected to zero or more child nodes. Each child node can have zero or more child nodes attached to it, establishing a hierarchical […]