InterviewBit Problems   Vertical Order traversal of Binary Tree : Solved

About the Vertical Order traversal of Binary Tree : Solved category (1)
About Inbuilt Pair Class (4)
What is wrong with my code? ( c++) (1)
What's difference between these codes?(python 3) (2)
Check out this mistake (1)
Can anyone help me what is wrong in my code? (3)
O(n) time and space solution with comments (2)
Can anyone tell me what is wrong in my code? :( (1)
Java Sol Time:O(n) Space:O(n) (2)
Easy C++ solution(Note-Misprint in question, Use level order traversal) (1)
C++ | using level order traversal (1)
The correct answer is wrong (since it requires pre-order traverse in the same vertical level)? (1)
Partial correct answer, not sure why (1)
What is wrong in this? Please help (1)
Solution validation incorrect (1)
Getting runtime error ,not able to figure out (1)
I am getting run time error for larger test cases. Please help me figure out the problem in my code (1)
Can be done in O(n) time without hashing (4)
Python solution easy solution (1)
PreOrder Not followed in output (6)
JAVA solution Balance factor approach (1)
JAVA balance factor approach (1)
What's the bug in my approach? (5)
Clean Solution in C++ (1)
C++ solution with complexity of O(N) (1)
Solved using approach from Hint in C++ (1)
Passing as custom but failing in test (1)
O(nlogn) solution_C++_BFS_(using queue and map) (3)
Input is incorrect while submitting (2)
Why failing for larger test cases (1)