Re: Working with Arrays

This smacks of homework, but...

I think in this case you probably want a hash, not an array, assuming PIC will not have duplicates.

my %foo = (
   18   => 56,
   25   => 10,
   12   => 45,
   ..
);

print $foo{ 18 };
[download]

--
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naChoZ

Comment on Re: Working with Arrays Download Code

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Re^2: Working with Arrays by Anonymous Monk on Jul 07, 2004 at 12:10 UTC
not homework just trying to learn and apply perl, beyond the stage of homework problem is that this is not suitbable, as the file could be 1000 lines long	[reply]
Re^3: Working with Arrays by revdiablo (Prior) on Jul 07, 2004 at 17:46 UTC
this is not suitbable, as the file could be 1000 lines long 1000 lines is not all that long. This should be plenty small enough to load into memory, as long as you're not on a very limited system. As a test, you can try loading up hashes with different numbers of elements, and looking to see what the memory usage is: `perl -e 'my %hash = map {$_=>$_} 1 .. 1_000; print "done"; sleep' perl -e 'my %hash = map {$_=>$_} 1 .. 10_000; print "done"; sleep' perl -e 'my %hash = map {$_=>$_} 1 .. 100_000; print "done"; sleep'` [download] On my system, the version that loaded 100,000 numbers used 21mb of memory. The version that loaded 1,000 numbers only used 3mb. On any modern computer, this should be a reasonable amount.	[reply] [d/l]