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Top Forums Shell Programming and Scripting Perl: find next available lowest number that is available in two arrays Post 302747175 by hcclnoodles on Thursday 20th of December 2012 07:23:03 PM
Old 12-20-2012
Perl: find next available lowest number that is available in two arrays

Hi there. I have a number allocation problem whereby I have 2 arrays built from 2 different sources. The arrays will just contain a listed of sorted numbers

Code:
@a 

1
7
10
14
15
16

@b

1
7
10
11
14
15
16

i need to scan both arrays and find the lowest available number that is available in both arrays that is higher than $min which is set to "10". once it finds the the lowest unused number, it quits and presents it in a variable

So in the case of the two arrays above, the number that would get presented is 12 (as 11 is used in one of the arrays)


I have been trying various things such as setting a counter and looping through the two arrays but have been getting myself in a real pickle of infinate loops and utter mess

I wanted to ask whether anyone could point me in the right direction on the best way to tackle this one?

any advice or guidance would be greatly appreciated

Thanks
 

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ARRAY_MERGE_RECURSIVE(3)						 1						  ARRAY_MERGE_RECURSIVE(3)

array_merge_recursive - Merge two or more arrays recursively

SYNOPSIS
array array_merge_recursive (array $array1, [array $...]) DESCRIPTION
array_merge_recursive(3) merges the elements of one or more arrays together so that the values of one are appended to the end of the previ- ous one. It returns the resulting array. If the input arrays have the same string keys, then the values for these keys are merged together into an array, and this is done recur- sively, so that if one of the values is an array itself, the function will merge it with a corresponding entry in another array too. If, however, the arrays have the same numeric key, the later value will not overwrite the original value, but will be appended. PARAMETERS
o $array1 - Initial array to merge. o $... - Variable list of arrays to recursively merge. RETURN VALUES
An array of values resulted from merging the arguments together. EXAMPLES
Example #1 array_merge_recursive(3) example <?php $ar1 = array("color" => array("favorite" => "red"), 5); $ar2 = array(10, "color" => array("favorite" => "green", "blue")); $result = array_merge_recursive($ar1, $ar2); print_r($result); ?> The above example will output: Array ( [color] => Array ( [favorite] => Array ( [0] => red [1] => green ) [0] => blue ) [0] => 5 [1] => 10 ) SEE ALSO
array_merge(3), array_replace_recursive(3). PHP Documentation Group ARRAY_MERGE_RECURSIVE(3)
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