InterviewBit Problems   Preorder Traversal : Solved

About the Preorder Traversal : Solved category (1)
Noice Solution using Unordered Map :-) (1)
Those who are having difficulty, see this two step solution (1)
Extremely easy and intuitive solution (1)
Morris traversal (1)
The guy who wrote the fastest solution is a goddamn genius with an IQ of 160! (2)
Simple Solution Using Stacks (5)
4 lines using "yield from" (Python 3) (1)
Cpp simple solution without recursion (1)
Cpp easy solution without recursion (1)
Very readable solution using stacks in C++ O(n) space and time (1)
C++ iterative O(h)memory and O(n)time (1)
C++ Iterative solution (1)
Simple iterative C++ solution using stack (1)
C++ O(n) in time and O(1) in space using Morris Traversal for preorder (1)
Why i am getting wrong answer (1)
Shortest and easy iterative c++ sol (1)
Simplest Solution using one stack (just change order for other traversals (1)
Python Solution Ami (1)
Fastest C++ Code (1)
Java- array as return type of the method and not arraylist (1)
Try solving without the use of stacks (1)
Non-Recursive Soultion in C++ (1)
Basic C++ solution (1)
Recursive solution(Preorder) (1)
Regarding your complete solution (1)