Looks like a neat problem, but I have a question on your example solution with no extra numbers: If I'm reading it correctly, there are supposed to be two 4s in the box. Where is the second 4?
Good catch James! Thanks. That was a data entry problem. Should be fixed now.
Nice problem! But I might have some misunderstanding on your problem. My own solution didn't converge on test case 6. Is convergence guaranteed? Could you provide an example solution for test case 6?
Hi Peng, and thanks for the note. I see your solutions now do quite well with all test cases! :-)
Extract leading non-zero digit
Tic Tac Toe FTW
Flag largest magnitude swings as they occur
Code breaker, Part I: Operation Phoenix
How long is the longest prime diagonal?
Spot the rectangle
Spot the rectangle (Part 2)
Would Homer Like It?
MatCAT - Reconstruct X from Its X-rays
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