InterviewBit Problems   Repeat and Missing Number Array : Unsolved

About the Repeat and Missing Number Array : Unsolved category (1)
Simple python solution with O(n) space (1)
Getting wrong result for big inputs (3)
What's wrong failing on large test case (1)
Nothing bdoazfvzkmvlkz (2)
Need help with this code! (2)
Where is the typecasting error (1)
Idk why this has type casting difficulty logic is correct (1)
Code not working? pls help.Thanks in advance :) (4)
What is problem with this solution? (5)
TypeError: 'Noneobject' is not iterable (1)
What's wrong with my code? Why is tortoise hare (circular linked list concept) not working? (3)
Why cant we use this Count method!? it's much much more simpler and has linear time complexity but IB says it's partially correct (2)
Solution with O(n) complexity (1)
Nothing to worry about if you solve this with bit manipulation. See solution (3)
Such a simple and elegant solution with Python (1)
Failed for larger test case (1)
Failing for large test-cases even after overflow-check (2)
Error Your code might be failing for larger test-cases (2)
I am getting "Wrong Answer. Your program's output doesn't match the expected output. You can try testing your code with custom input and try putting debug statements in your code. Your code might be failing for larger test-cases". Please help (1)
This question can be solved by just using two equation (4)
What does it mean by not using extra memory? (2)
Stuck in the line of the code (1)
Solution for the question (2)
Problem can be solve using O(n) time complexity and O(n) Space Complexity (1)
Code failing for larger datasets (7)
Error: Code might be failing for larger test-cases, why? (1)
Explain the need of typecasting (2)
May I know why my code is failing after submit only 25 points (2)
What's the problem with my code? (2)