Re^4: The Perl 6 Coding Contest 2012

in reply to Re^3: The Perl 6 Coding Contest 2012
in thread The Perl 6 Coding Contest 2012

Ignoring questions of optimality, is this legal? (If not, which rule(s) does it violate?)

0 _____  _____ 3
       \/       
1 ___  /\    _ 4
     \/  \/\/   
2 _  /\  /\/\_ 2
   \/  \/ /\    
3 _/\__/\/  \_ 0
        /\      
4 _____/  \___ 1
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Re^5: The Perl 6 Coding Contest 2012 by pKai (Priest) on Dec 26, 2012 at 14:36 UTC
Each cell of the grid is either empty … or a crossing The visualisation of the examples use a character grid but their crossings are not atomic (i.e. characters) but 2x2 sprites. In your last graph you shifted 2 of those (those nearest to the lower right corner) half a grid cell, so that is no longer a rectangular grid. Using just 1 character for each atomic cell, an `_` for a pass through and an `X` for a crossing and transliterating O. K. examples we saw in this thread in this way (the "wire" goes on the base line of the number): `0 1 1X0 2 3 3X2` [download] `0 ________1 1X _______2 2_X ______3 3__X _____4 4___X ____5 5____X ___6 6_____X __7 7______X _8 8_______X 9 9________X0` [download] `0__ __3 1_ X _4 2 X X 2 3X X X0 4_X_X_1` [download] Due to the half cell shifts in your graphs, none of those can be displayed in this way. Update: On reviewing, also in this type of graph a crossing is an `X` in one cell, but also an empty cell above (mandatory, because otherwise would be an incorrect wiring). So the original constraint formulation ("each cell is one of 2 types") seems indeed not totally fitting.	[reply] [d/l] [select]

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Re^5: The Perl 6 Coding Contest 2012
by pKai (Priest) on Dec 26, 2012 at 14:36 UTC

Each cell of the grid is either empty … or a crossing

The visualisation of the examples use a character grid but their crossings are not atomic (i.e. characters) but 2x2 sprites. In your last graph you shifted 2 of those (those nearest to the lower right corner) half a grid cell, so that is no longer a rectangular grid.

_

X

0 1
1X0
2 3
3X2
[download]

0 ________1
1X _______2
2_X ______3
3__X _____4
4___X ____5
5____X ___6
6_____X __7
7______X _8
8_______X 9
9________X0
[download]

0__ __3
1_ X _4
2 X X 2
3X X X0
4_X_X_1
[download]

Due to the half cell shifts in your graphs, none of those can be displayed in this way.

Update: On reviewing, also in this type of graph a crossing is an X in one cell, but also an empty cell above (mandatory, because otherwise would be an incorrect wiring). So the original constraint formulation ("each cell is one of 2 types") seems indeed not totally fitting.

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