Sorry about that. I wrote the contest code in absolute indexing, and then changed it to match the rules. I pushed the absolute indexing version accidentally. My bad.

We just modified the rules to match the contest suite as it is on the File Exchange. Looks like some of the early entries figured it out and are doing well. Use ind2sub to convert to row column if you happen to need it.

sorry,
Doug

while in the distributed functions it is:
colors = solver(A,targetRowAndColumn)
This also fits the ‘testsuite_sample.mat’ is built.

What is the correct one (should we use a linear index of the target or subscripts)?

Thank you