What is Generic Tree or N-ary Tree? Last Updated : 23 Jul, 2025 Comments Improve Suggest changes Like Article Like Report Generic tree or an N-ary tree is a versatile data structure used to organize data hierarchically. Unlike binary trees that have at most two children per node, generic trees can have any number of child nodes. This flexibility makes them suitable for representing hierarchical data where each node can have several branches or children.What is a Generic Tree?A generic tree is a tree where each node can have zero or more children nodes. Unlike a binary tree, which has at most two children per node (left and right), a generic tree allows for multiple branches or children for each node.Key Features of a Generic Tree:Nodes and Children: Every node in a generic tree can have any number of children nodes, including none (which makes it different from a binary tree).Hierarchical Structure: Nodes in a generic tree are arranged in a hierarchical order, with each node potentially having its own subtree (a smaller tree within the larger tree structure).Root and Leaf Nodes:Root Node: This is the topmost node of the tree, from which all other nodes descend.Leaf Nodes: These are nodes that do not have any children.Example of a Generic Tree:Let’s consider an example to better understand a generic tree:Generic Trees(N-array Trees)Applications of Generic Tree or N-ary TreeBelow are some application of generic tree:File Systems: Representing directories and files where directories can contain other directories or files.Organization Structures: Modeling hierarchical relationships in organizations where each node represents a person or a department.Compiler Design: Representing the structure of statements and expressions in programming languages.XML/HTML Parsing: Storing and traversing hierarchical data structures like XML or HTML documents.Learn Basics of Generic Tree or N-ary TreeGeneric Trees(N-array Trees)Easy Problems on Generic Tree or N-ary TreeDepth of an N-Ary treeNumber of nodes greater than a given value in n-ary treeGeneral Tree Level Order TraversalDFS for a n-ary tree represented as adjacency listHeight of n-ary tree if parent array is givenNumber of special nodes in an n-ary treePreorder Traversal of N-ary Tree Without RecursionPrint all leaf nodes of an n-ary tree using DFSCount the nodes in the given tree whose weight is even parityDifference between sums of odd level and even level nodes in an N-ary TreeRemove all leaf nodes from a Generic Tree or N-ary TreeLevel Order Traversal of N-ary TreeMedium Problems on Generic Tree or N-ary TreeDiameter of an N-ary treeNumber of ways to traverse an N-ary treeMirror of n-ary TreeLocking and Unlocking of Resources arranged in the form of n-ary TreeHeight of a generic tree from parent arrayNext Larger element in n-ary treeSecond Largest element in n-ary treeLeft-Child Right-Sibling Representation of TreeLongest path in an undirected treeDP on Trees | Set-3 ( Diameter of N-ary Tree )Iterative Preorder Traversal of an N-ary TreeImmediate Smaller element in an N-ary TreeIterative Postorder Traversal of N-ary TreeMaximum level sum in N-ary TreeReplace every node with depth in N-ary Generic TreeCount of subtrees from an N-ary tree consisting of single colored nodesFind if path length is even or odd between given Tree nodes for Q queriesMaximize sum of path from the Root to a Leaf node in N-ary TreeKth Smallest Element in an N-ary TreeCount of subtrees possible from an N-ary TreeConvert a Generic Tree(N-array Tree) to Binary TreeCheck if given Generic N-ary Tree is Symmetric horizontallyZigZag Level Order Traversal of an N-ary TreeHard Problems on Generic Tree or N-ary TreeLCA for n-ary Tree | Constant Query O(1)Serialize and Deserialize an N-ary TreeConstruct the full k-ary tree from its preorder traversalGCD from root to leaf path in an N-ary treeLevel with maximum number of nodes using DFS in a N-ary treeFind distance of nodes from root in a tree for multiple queriesKth ancestor of all nodes in an N-ary tree using DFSFind node U containing all nodes from a set V at atmost distance 1 from the path from root to UFind the node at the center of an N-ary treeMaximum weighted edge in path between two nodes in an N-ary tree using binary liftingMinimum distance between two given nodes in an N-ary treeMinimum time required to color all edges of a TreeConstruct a Complete N-ary Tree from given Postorder TraversalNumber of leaf nodes in a perfect N-ary tree of height KCount of nodes in a given N-ary tree having distance to all leaf nodes equal in their subtree Comment More infoAdvertise with us Next Article Analysis of Algorithms H harendrakumar123 Follow Improve Article Tags : Tree DSA Practice Tags : Tree Similar Reads Basics & PrerequisitesLogic Building ProblemsLogic building is about creating clear, step-by-step methods to solve problems using simple rules and principles. 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