Largest product in a grid: Difference between revisions

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The maximum product of 4 elements: 51267216 is the column of 4 numbers starting at: 7, 16
The maximum product of 4 elements: 51267216 is the column of 4 numbers starting at: 7, 16
</pre>
</pre>

=={{header|Arturo}}==

<syntaxhighlight lang="arturo">grid: [
[08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 08]
[49 49 99 40 17 81 18 57 60 87 17 40 98 43 69 48 04 56 62 00]
[81 49 31 73 55 79 14 29 93 71 40 67 53 88 30 03 49 13 36 65]
[52 70 95 23 04 60 11 42 69 24 68 56 01 32 56 71 37 02 36 91]
[22 31 16 71 51 67 63 89 41 92 36 54 22 40 40 28 66 33 13 80]
[24 47 32 60 99 03 45 02 44 75 33 53 78 36 84 20 35 17 12 50]
[32 98 81 28 64 23 67 10 26 38 40 67 59 54 70 66 18 38 64 70]
[67 26 20 68 02 62 12 20 95 63 94 39 63 08 40 91 66 49 94 21]
[24 55 58 05 66 73 99 26 97 17 78 78 96 83 14 88 34 89 63 72]
[21 36 23 09 75 00 76 44 20 45 35 14 00 61 33 97 34 31 33 95]
[78 17 53 28 22 75 31 67 15 94 03 80 04 62 16 14 09 53 56 92]
[16 39 05 42 96 35 31 47 55 58 88 24 00 17 54 24 36 29 85 57]
[86 56 00 48 35 71 89 07 05 44 44 37 44 60 21 58 51 54 17 58]
[19 80 81 68 05 94 47 69 28 73 92 13 86 52 17 77 04 89 55 40]
[04 52 08 83 97 35 99 16 07 97 57 32 16 26 26 79 33 27 98 66]
[88 36 68 87 57 62 20 72 03 46 33 67 46 55 12 32 63 93 53 69]
[04 42 16 73 38 25 39 11 24 94 72 18 08 46 29 32 40 62 76 36]
[20 69 36 41 72 30 23 88 34 62 99 69 82 67 59 85 74 04 36 16]
[20 73 35 29 78 31 90 01 74 31 49 71 48 86 81 16 23 57 05 54]
[01 70 54 71 83 51 54 69 16 92 33 48 61 43 52 01 89 19 67 48]
]

findLargestProduct: function [g][
dim: size g
maxProd: [[], 0]
loop 0..dec dim 'row [
loop 0..dim-4 'col [
items: @[g\[row]\[col], g\[row]\[col+1], g\[row]\[col+2], g\[row]\[col+3]]
prod: product items
if prod > last maxProd [
maxProd: @[items, prod]
]
]
]
loop 0..dec dim 'col [
loop 0..dim-4 'row [
items: @[g\[row]\[col], g\[row+1]\[col], g\[row+2]\[col], g\[row+3]\[col]]
prod: product items
if prod > last maxProd [
maxProd: @[items, prod]
]
]
]
return maxProd
]

print findLargestProduct grid</syntaxhighlight>

{{out}}

<pre>[66 91 88 97] 51267216</pre>


=={{header|AutoHotkey}}==
=={{header|AutoHotkey}}==
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<pre>Max Product = 51267216
<pre>Max Product = 51267216
66*91*88*97 @ Row 7 - Row 10, Col 16</pre>
66*91*88*97 @ Row 7 - Row 10, Col 16</pre>

=={{header|AWK}}==
=={{header|AWK}}==
<syntaxhighlight lang="awk">
<syntaxhighlight lang="awk">
Retrieved from "https://rosettacode.org/wiki/Largest_product_in_a_grid"