Quote:Yes, There is no line 28.
But, it is showing the same error.
Then, it is not the file you are compiling.
There is nothing we can do for you until you find what file you are compiling.
Quote:You must write an algorithm with O(log n) runtime complexity.
This means that in a list of 1000, you find position in looping 10 times.
Binary search algorithm - Wikipedia