InterviewBit Problems   Vertical Order traversal of Binary Tree : Unsolved

About the Vertical Order traversal of Binary Tree : Unsolved category (1)
Why my code is giving incorrect order of output? (2)
HashMap + Level order Traversal -> O(n) (2)
Mistake in question (5)
Different outputs for same code(Test with Custom Input,Test) (1)
Consider root==NULL condition also. They are calling this case the large :( (2)
Please find the error in this code (1)
Sample passed, Failing for larger test case (Getting 77/200) (1)
Level order, check for null (1)
Level order ko pre order lekha hua h haramiyo ne! (5)
What is wrong with my code, any idea? (2)
Is this platform still in beta? (1)
It's level order traversal (3)
The question applies Level Order Traversal instead of Pre-order Traversal (2)
A simple solution in CPP(Give it a shot) (1)
Please point out the mistake in this approach (1)
Solution to wrong answer and failing for larger test cases (2)
Read out for Clarification, what should happen if two nodes are at same vertical level (1)
Wrong expected output in submission (3)
vertical[index].push_back(A->val); This line is giving RTE (1)
Expected output seems wrong (1)
Got Partially correct because null condition wasn't checked! (1)
Can someone please help me, where is the error in my code? (3)
I m not getting any output (1)
LEet code soln not working! lt worked for 30 cases there (1)
Please help! Don't know what's the problem here (2)
Can anyone find the bug... code failing while submitting (2)
Simple BFS and done! (2)
What is the error in the code? i m not getting any output (1)
Interesting yet simple question (1)