InterviewBit Problems   Numbers of length N and value less than : Unsolved

About the Numbers of length N and value less than : Unsolved category (1)
Wrong answer in testor (2)
Correct question and test cases (1)
Expected output wrong? (1)
Running for any input i am giving manually but not accepting.Please find whats the mistake (1)
The way question is worded is wrong (2)
Explanation video of this question--> (3)
Wrong Answer. Code might be failing for large input (2)
Runtime error verdicts (1)
20 test cases for help (5)
Differnet Answers of same Input (1)
How to write custom test cases? (2)
Potential Wrong Solution (1)
What should be the answer for this test case (2)
Partially Correct and Your code might be failing for larger test-cases (1)
Doubt in a test case [0, 1, 1, 2, 2, 5] B = 2, K = 21 Ans:7 (2)
Same Custom input giving right answer but when I submit it using "Test" shows error (3)
Wrong answer by the Interview Bit's code. Or please correct me (2)
NOTE: All numbers can only have digits from the given set (3)
Wrong test cases and wrong expected output (1)
O(BlogA) solution fails large test cases (1)
Crap ide and online judje (1)
WA on 180th test case (1)
What are you guys getting for this test case? please help! (2)
Test case seems to generate incorrect answer (2)
Case of duplicates? (3)
Incorrect Test Case for sample input (2)
Duplicates case (1)
Did it using Digit DP (1)
Wrong expected output for A = [ 2, 9] B = 5, C = 17015 (3)