InterviewBit Problems   Minimum Lights to Activate : Unsolved

About the Minimum Lights to Activate : Unsolved category (1)
O(n) solution | no sorting (2)
Wrong output for testcase with N=29062, and no B (1)
Code already present (1)
Easy solution using sorting (1)
What's wrong with this solution in c++? (2)
Wrong Constraint , n exceeds 1000 (1)
Please provide clarity about second test case (2)
Test cases are wrong under the test section (1)
Question is not proper (1)
Needed clarity for this question (2)
Need Clarity In Question (3)
Wrong editorial code (3)
Interviewbit, pls fix (2)
@anshumansingh , Please verify the constraints (1)