InterviewBit Problems   First non-repeating character in a stre : Unsolved


About the First non-repeating character in a stre : Unsolved category (1)
How "iergxwhddh" results in "iiiiiiiiii"? (5)
Why is this solution only partially correct? (6)
O(1) solution-: fastest of all using Doubly Linked List (1)
TLE may come but submit again (1)
Https://www.interviewbit.com/problems/first-non-repeating-character-in-a-stream-of-characters/ (5)
Using Queue in Solution in C++ (1)
Logically same code as the provided solution is returning TLE (4)
Working code here (1)
Giving correct answer on custom testing but wrong answer on submitting (2)
Working code in cpp (1)
Tip to avoid TLE (1)
Mis thoughts on continous #'s (2)