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power.yuk
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power.yuk
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#!/usr/bin/awful
!const =GRID-SIZE i300
:set &grid :arr
:set &power :arr
:set &sumx :arr
:set &sumy :arr
!fun :reset-grid
!global &grid &power &sumx &sumy
:set &grid :arr
:set &power :arr
:set &sumx :arr
:set &sumy :arr
:set &y i0
!while :lt $y =GRID-SIZE
:set &grid[$y] :arr
:set &power[$y] :arr
:set &sumx[$y] :arr
:set &sumy[$y] :arr
:set &x i0
!while :lt $x =GRID-SIZE
:set &grid[$y][$x] i0
:set &power[$y][$x] i0
:set &sumx[$y][$x] i0
:set &sumy[$y][$x] i0
:add &x i1
!done
:add &y i1
!done
!nuf
!fun :calculate-cell-powers $grid-id
!global &grid &power &sumx &sumy
:set &y i0
!while :lt $y =GRID-SIZE
:set &x i0
!while :lt $x =GRID-SIZE
:set &rack-id :add $x i10
:set &cell-power :mul $rack-id $y
:add &cell-power $grid-id
:mul &cell-power $rack-id
:div &cell-power i100
:mod &cell-power i10
:sub &cell-power i5
:set &grid[$y][$x] $cell-power
:add &x i1
!done
:add &y i1
!done
:set &y i0
!while :lt $y =GRID-SIZE
:set &sumx[$y][i0] &grid[$y][i0]
:set &x i1
!while :lt $x =GRID-SIZE
:set &s &sumx[$y][:sub $x i1]
:add &s &grid[$y][$x]
:set &sumx[$y][$x] $s
:add &x i1
!done
:add &y i1
!done
:set &x i0
!while :lt $x =GRID-SIZE
:set &sumy[i0][$x] &grid[i0][$x]
:set &y i1
!while :lt $y =GRID-SIZE
:set &s &sumy[:sub $y i1][$x]
:add &s &grid[$y][$x]
:set &sumy[$y][$x] $s
:add &y i1
!done
:add &x i1
!done
!nuf
!fun :calculate-squares-incremental $size
!global &grid &power &sumx &sumy
:set &limit :sub =GRID-SIZE $size
:set &y i0
!while :le $y $limit
:set &x i0
!while :le $x $limit
:set &square-power &power[$y][$x]
:set &right :add $x $size i-1
:set &down :add $y $size i-1
:add &square-power &sumx[$down][$right]
!if :gt $x i0
:sub &square-power &sumx[$down][:sub $x i1]
!fi
:add &square-power &sumy[$down][$right]
!if :gt $y i0
:sub &square-power &sumy[:sub $y i1][$right]
!fi
:sub &square-power &grid[$down][$right]
:set &power[&y][&x] &square-power
:add &x i1
!done
:add &y i1
!done
!nuf
!fun :find-best-square $size &out-x &out-y &out-power
!global &power
:set &limit :sub =GRID-SIZE $size
:set &best-power &best-x &best-y i-987654321
:set &y i0
!while :le $y $limit
:set &x i0
!while :le $x $limit
:set &cell-power &power[$y][$x]
!if :gt $cell-power $best-power
:set &best-power $cell-power
:set &best-y $y
:set &best-x $x
!fi
:add &x i1
!done
:add &y i1
!done
:set &out-x $best-x
:set &out-y $best-y
:set &out-power $best-power
!nuf
:set &line i0
!while :not :stdin-eof
:readln &line
:reset-grid
:calculate-cell-powers $line
:set &power &grid
:calculate-squares-incremental i2
:calculate-squares-incremental i3
:set &ax &ay &ap i0
:find-best-square i3 &ax &ay &ap
:writeln s'--> part1: grid ' $line s| » | $ax s|,| $ay s| (| $ap ss power)s
#~ part2 ~#
:set &power &grid
:set &bx &by &bp i0
:find-best-square i1 &bx &by &bp
:set &bs i1
:set &size i2
!while :le $size =GRID-SIZE
:calculate-squares-incremental $size
:set &ax &ay &ap i0
:find-best-square $size &ax &ay &ap
!if :gt $ap $bp
:set &bp &ap
:set &bs $size
:set &bx &ax
:set &by &ay
!fi
:write ss.s
:add &size i1
!done
:writeln
:writeln s'--> part2: grid ' $line s| » | $bx s|,| $by s|,| $bs s| (| $bp ss power)s
!done