The coding challenge questions were fairly easy, one was string manipulation and the other was based on using basic data structures. The phone screen interview asked how to serialize an n-ary tree.
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Both my phone interviews were based on trees and graphs, n-ary tree.
Typical Leet code questions regarding data structures and to code it in google Docs
Given 2 strings containing regular characters and backspace characters (represented by "<"), return true if both strings are the same after all backspaces are processed and false otherwise. ie) should return true for "abc<<de<f" and "adca<<f"
Add a right pointer to a complete binary tree
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