hello every one !
Recently I write a perl script which not long, but it has an array named "@arr_abundant" which contain nearly 30000 elements.
And I make two "for loop" on it on a section
So every time I re run this script, it runs very slowly.

Is there any one can tell me any clues about deal with this problem? such as any cache mechanism. so I can re run it fast for debug?

Really appreciate your help!!

my @arr_abundant;

for (12 .. 28123 ){ ### Evaluating [===|    ] % done
    push @arr_abundant, $_ if prob23_type_of_number($_)  eq "abundant"
+ ;
}

my %hash;

# get no repeated abundant number
foreach my $i (@arr_abundant){ ### Evaluating [===|    ] % done
    foreach my $j (@arr_abundant) {
        my $positive = $i + $j;

        next if $positive > 28123;

        $hash{$positive} ++;
    }
}

# get the sum of positive integers cannot be written as ...

my $sum_total;
my @arr_sum_two_abundant_numbers=sort {$a <=> $b}  keys %hash ;


my $n = 1;
foreach my $key (@arr_sum_two_abundant_numbers){
    for ( my $i=$n ; $i < $key ; $i++) {
    $sum_total +=   $i;

    }
    $n = $key +1;
}
 print "$sum_total\n";

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In reply to Is there any cache mechanism for running perl script by DillonYu

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