Problem 658. Find the biggest empty box

Created by Ned Gulley

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1567 Solutions
523 Solvers

Last Solution submitted on Aug 10, 2020

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David Hruska on 9 Jun 2012

There appears to be an error is Test Suite #3.

Richard Zapor on 10 Jun 2012

Agree, len for Test Suite 3 should be 4 not 3.

Ned Gulley on 10 Jun 2012

Yes. Fixed it.

Jean-Marie Sainthillier on 29 Nov 2012

Very exciting, as always with Ned

Brian Hannan on 16 Jan 2015

Good puzzle!

Jerivington on 10 Jun 2016

Challenging like all the other problems set in the ASEE Challenge

jmac on 23 May 2020

Nice!

Solution Comments

Solution 1198702

2 Comments

2 Comments

Informaton on 1 Oct 2017

Wow! Size 10.

yurenchu on 2 Oct 2017

@Informaton: Oh, it's nothing; just a cheating script ("gaming the test suite answers") combined with the well-known 'regexp' trick. A proper small solution was first submitted by Tim (Solution 97452 - size:51) and was later optimized in size by Alfonso Nieto-Castanon (Solution 181060 - size:48). My alternative Solution 1198643 (size:63), which uses for-loops instead of conv2 or filter2 function, is also much better than this 'regexp' cheat.

Solution 110110

1 Comment

1 Comment

Jean-Marie Sainthillier on 30 Nov 2012

Splendid !

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Problem 658. Find the biggest empty box

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Problem 658. Find the biggest empty box

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