Valid BST from Preorder | Verify Preorder Sequence in Binary Search Tree
Given an integer array, check if it can represent a preorder traversal of Binary Search Tree. I have discussed an efficient stack based approach that works on the concept of finding the next greater element and after finding next greater, if we find a smaller element, then return false.
Source code: https://github.com/fit-coder/fitcoder...
00:00 Introduction
00:08 Validate BST from Preorder
02:00 Pseudo Code
09:47 Implementation
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I live in New Delhi and love explaining programming concepts. I have done M.Tech(BITS Pilani) + B.Tech(PEC, Chandigarh) in Computer Science and am currently working as a software engineer in a MNC.
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For other BST tutorials, please refer to the below links:
Introduction to BST: • Introduction to Binary Search Trees | BST ...
Delete node in BST: • Delete a node from Binary Search Tree | BST
LCA in BST: • Lowest Common Ancestor (LCA) in Binary Sea...
Validate BST: • Check if Binary Tree is Binary Search Tree...
Sorted array to Balanced BST: • Convert Sorted Array To Balanced Binary Se...
For other tree tutorials, please refer to the below playlist:
• Tree Data Structures
For in-depth Graph theory and implementation details, please refer to the below playlist:
• Graph Algorithms
#DataStructure,#Trees,#FitCoder,#Algorithm,#competitiveprogramming,#binarytree,#binarysearchtree