InterviewBit Problems   Count Total Set Bits : Unsolved

About the Count Total Set Bits : Unsolved category (1)
My solution is being accepted on other sites but this one seems bugged (1)
Good Question, logic behind it is very impressive (1)
Your code might be failing for larger test-cases (?!) - Python 3 (2)
Simple solution_c++ with out partial correct issue (1)
Partially accepted please help me find what i have to optimise (1)
Why this code is giving wrong answer (1)
O(32) time and O(1) space C++ no log or power functions (1)
CAn You Please Suggest me Best Optimal Sol (1)
Recursive solution using binomial theorem (1)
Use long long for counting variable (1)
Please help me to get best time complexity (1)
Partially correct-Time limit exceeded (2)
What is wrong in this solution, giving correct solution upto 10^7, but giving 2 less for greater values (2)
O(logn) understandable cpp code (1)
Simple solution in java using hint1 (1)
Simple 2 line o(32) (3)
Partially correct can someone help me? (3)
C++ simple two lines of logic! (1)
Constant time complexity in best case using recursion (1)
2 lines o(32) solution (1)
log(A) -Hit Esh (1)
Log n solution by cchecking each position (1)
Partially Correct Answer. whats wrong in my code? (2)