Problem 1646. Kurchan 3x3 - Optimal Score

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Solution 294094

Submitted on 2 Aug 2013 by Alfonso Nieto-Castanon

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Test Suite

Test	Status	Code Input and Output
1	Pass	%% tic m = kurchan_3x3 toc p=[1 4 7 2 5 8 3 6 9 1 2 3 4 5 6 7 8 9 1 5 9 4 8 3 7 2 6 7 5 3 8 6 1 9 4 2]; assert(isequal((1:9)',unique(m(:)))) % check use 1 thru 9 mp=prod(m(p),2); K=max(mp)-min(mp) % display K score % simplified Kurchan scoring for 3x3 assert(K<=198) % Pretty certain 198 is best possible, allow better score m = 5 4 9 6 1 2 7 3 8 Elapsed time is 0.006556 seconds. K = 198

Test

Status

Code Input and Output

Pass

%% tic m = kurchan_3x3 toc p=[1 4 7 2 5 8 3 6 9 1 2 3 4 5 6 7 8 9 1 5 9 4 8 3 7 2 6 7 5 3 8 6 1 9 4 2]; assert(isequal((1:9)',unique(m(:)))) % check use 1 thru 9 mp=prod(m(p),2); K=max(mp)-min(mp) % display K score % simplified Kurchan scoring for 3x3 assert(K<=198) % Pretty certain 198 is best possible, allow better score

m = 5 4 9 6 1 2 7 3 8 Elapsed time is 0.006556 seconds. K = 198

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Problem 1646. Kurchan 3x3 - Optimal Score

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Problem 1646. Kurchan 3x3 - Optimal Score

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