https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree/ Convert BST to greater sum tree
Development Intern Interview Questions
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Zig-zag binary tree level order traversal using two stack
What is the biggest challenge you faced in a project and how did you resolve it?
Leetcode array manipulation very easy, then a sorting based leetcode one
Given a node, find the in-order successor in binary search tree, with parent pointer of each node but no root node available.
Difference between array and linked list
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Given a set of search filters how would you design and implement a search through a database to return desired results.
Tell us about yourself.
1.find all numbers in a list that occurs odd times. 2.validate BST
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