https://www.codingame.com/training/medium/fractal-image-recognition
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Created by @CSGO_BOT,validated by @DaNinja,@Smelty and @KAbel.
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The stub is faulty: It reads ‘imageSize’ chars per line, but input contains twice as much because of the separating spaces.
I think the best would be to just read it cell by cell:
loop imageSize loopline imageSize pixel:int
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I don’t understand these instructions,
" To place a fractal to the north (“3”) of pixel P , pixels “9”, “5”, “3”, “4”, “2” around pixel P must be empty.
To place a fractal to the northeast (“4”) of pixel P , pixels “5”, “3”, “4”, “2”, “7” around pixel P must be empty." .
When I put the northeast(“4”) of pixel P (for the first extremum (1, 6)) , the fractal in the north (“3”) can’t be empty 'cause there will be near each other (north and northeast) of the extremum.
And in the place of the result example, why we hadn’t :
0 0 0 0 0 5 3 4 0 0
0 0 0 0 0 0 1 0 0 0
0 0 0 0 0 1 1 0 0 0
0 0 0 0 1 0 1 0 0 0
0 0 9 1 0 0 1 0 0 0
0 0 8 6 7 0 1 0 0 0
0 0 0 0 0 0 1 0 0 0
0 0 0 0 0 0 1 0 0 0
0 0 0 0 0 0 1 0 0 0
0 0 0 0 0 8 6 7 0 0
Because you also need to have
at least 5 consecutive empty (“0”) spaces around it.
For example, the 5 you’ve placed at the top has only 4 consecutive empty spaces around the 1 pixel, so the 5 cannot be placed there.