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AlgoGenesis / C

AlgoGenesis is a centralized open-source platform dedicated to providing optimized and well-documented algorithm implementations in C. Perfect for both beginners and advanced users, this repository serves as a comprehensive learning resource for solving algorithmic challenges.
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Binary Tree construction from preorder and postorder traversals #1266

Open DPS-2912 opened 2 hours ago

DPS-2912 commented 2 hours ago

Issue will be closed if:

1) You mention more than one algorithm. You can create a separate issue for each algorithm once the current one is completed.
2) You propose an algorithm that is already present or has been mentioned in a previous issue.
3) You create a new issue without completing your previous issue.

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Name:

Binary Tree construction from preorder and postorder traversals

About:

Given two arrays: Preorder Traversal (pre): The order of nodes visited in preorder traversal (Root-Left-Right). Postorder Traversal (post): The order of nodes visited in postorder traversal (Left-Right-Root).

You need to reconstruct the binary tree that corresponds to these traversals. The challenge lies in the fact that multiple binary trees can yield the same preorder and postorder traversals, but for a given tree structure, there is a unique reconstruction.

The algorithm will effectively reconstruct the binary tree from its preorder and postorder traversals using recursion and careful tracking of subtree sizes.

Labels:

new algorithm, gssoc-ext, hacktoberfest, level1

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