Im getting segmentation fault with the sol check the code on that i/p
But im getting wrong o/p for the left view of binary tree
pls once have a look
this code is recursive approach
and above one is iterative
One mistake in recursive approach is that maxlevel variable must be declared as global and not within the recursive function.
Secondly ,You are not taking the input correctly.
Input Format
Level order input for the binary tree will be given.
But you are considering it as preorder input.
Refer this How to take build bt with level order input?
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