The description does not match the example: The point 3 should be "3. On the # trip down the alley, start with door # [and process every #-th door]".
I agree with Jan - the description is not clear. The final instruction should be "return the list of open door #'s", presumably.
If the description was clearer, I'd give this problem a "like", because a good solution depends on a good analysis of the problem more than on just neat coding.
Sorry about the confusion. I tried to clarify the problem description.
Nice problem! The explicit solution was very surprising to me once I found it.
Classic problem--unfortunate that the test suite reveals the punchline.
Yes I initially thought y = sum(open doors)
good problem, easy solution once realising how to solve
easy if to think a bit
though I did not understand the question...
the problem are not clear, could you explain me?
Very nice solution without for loop
Problem isn't robust to direction of vector
Nice explanation. I just derivated the formula from the solution ;-)
Thanks for the explanation.
Find state names that start with the letter N
Area of a triangle
Matlab Basics - Convert a row vector to a column vector
Matlab Basics - Rounding II
Remove the vowels
Longest Divisor Run
Tic Tac Toe FTW
Back and Forth Rows
Find the treasures in MATLAB Central and discover how the community can help you!
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office