I actually don't. I made a lot of money helping people figure out how easy Perl is. So I consider *that* statement of yours also disrespectful of the truth.

]]>Hey, that's a pretty broad brush you're painting with, and I take personal offense at that, and I'm sure many of my fellow instructors would be similarly offended.

]]>

All I gave it was the text literally as-is, plus the instruction "solve this in Perl".

Wow.

use strict; use warnings;sub minimum_index_sum {

my ($list1, $list2) = @_;

my %index_sum;

my $min_sum = scalar(@$list1) + scalar(@$list2);

for my $i (0..scalar(@$list1)-1) {

for my $j (0..scalar(@$list2)-1) {

if ($list1->[$i] eq $list2->[$j]) {

my $sum = $i + $j;

push @{$index_sum{$sum}}, $list1->[$i];

$min_sum = $sum if $sum }

}

}

return @{$index_sum{$min_sum}} if exists $index_sum{$min_sum};

return ();

}# test the function with the provided examples

my @result1 = minimum_index_sum(["Perl", "Raku", "Love"], ["Raku", "Perl", "Hate"]);

print "Example 1: (@result1)\n";my @result2 = minimum_index_sum(["A", "B", "C"], ["D", "E", "F"]);

print "Example 2: (@result2)\n";my @result3 = minimum_index_sum(["A", "B", "C"], ["C", "A", "B"]);

print "Example 3: (@result3)\n";

and for the second one:

use strict; use warnings;sub duplicate_and_missing {

my ($nums) = @_;

my $n = scalar(@$nums);

my $sum = 0;

my $sum_sq = 0;

my $expected_sum = $n * ($n + 1) / 2;

my $expected_sum_sq = $n * ($n + 1) * (2 * $n + 1) / 6;

for my $num (@$nums) {

$sum += $num;

$sum_sq += $num * $num;

}

my $diff = $expected_sum - $sum;

my $diff_sq = $expected_sum_sq - $sum_sq;

if ($diff == 0) {

return -1;

}

my $missing = ($diff + $diff_sq / $diff) / 2;

my $duplicate = $missing - $diff;

return ($duplicate, $missing);

}# test the function with the provided examples

my @result1 = duplicate_and_missing([1,2,2,4]);

print "Example 1: (@result1)\n";my @result2 = duplicate_and_missing([1,2,3,4]);

print "Example 2: (@result2)\n";my @result3 = duplicate_and_missing([1,2,3,3]);

print "Example 3: (@result3)\n";

Fascinating. And for Raku:

sub minimum-index-sum(@list1, @list2) { my %index-sum; my $min-sum = @list1.elems + @list2.elems; for @list1.kv -> $i, $str1 { for @list2.kv -> $j, $str2 { if $str1 eq $str2 { my $sum = $i + $j; %index-sum{$sum}.push($str1); $min-sum = $sum if $sum # test the function with the provided examples

my @result1 = minimum-index-sum(<Perl Raku Love>, <Raku Perl Hate>);

say "Example 1: (@result1)";my @result2 = minimum-index-sum(<A B C>, <D E F>);

say "Example 2: (@result2)";my @result3 = minimum-index-sum(<A B C>, <C A B>);

say "Example 3: (@result3)";

and

sub duplicate-and-missing(@nums) { my $n = @nums.elems; my $sum = [+] @nums; my $sum-sq = [+] @nums.map(* ** 2); my $expected-sum = $n * ($n + 1) div 2; my $expected-sum-sq = $n * ($n + 1) * (2 * $n + 1) div 6; my $diff = $expected-sum - $sum; my $diff-sq = $expected-sum-sq - $sum-sq; if $diff == 0 { return -1; } my $missing = ($diff + $diff-sq div $diff) div 2; my $duplicate = $missing - $diff; return ($duplicate, $missing); }]]># test the function with the provided examples

my @result1 = duplicate-and-missing([1,2,2,4]);

say "Example 1: (@result1)";my @result2 = duplicate-and-missing([1,2,3,4]);

say "Example 2: (@result2)";my @result3 = duplicate-and-missing([1,2,3,3]);

say "Example 3: (@result3)";When asked "can you explain it", we get:

Sure! The second problem asks to find the duplicate

and missing integer in a given array of integers in

sequence with one missing and one duplicate. The

solution uses the mathematical properties of the sum

and sum of squares of the first n natural numbers.

First, we calculate the expected sum and sum of

squares of the first n natural numbers using the

formulas n * (n + 1) / 2 and n * (n + 1) * (2 * n +

1) / 6, respectively. Then we calculate the actual

sum and sum of squares of the given array.

The difference between the expected sum and the

actual sum gives us the difference between the

missing and duplicate numbers. The difference

between the expected sum of squares and the actual

sum of squares gives us the difference between the

squares of the missing and duplicate numbers.

From these two equations, we can solve for the

missing and duplicate numbers. If there is no

difference between the expected sum and actual sum,

then there is no missing or duplicate number, so we

return -1.I hope this explanation helps you understand how the

solution works!

Using ChatGPT to generate Perl code can be a useful strategy for some people. It can help generate decent Perl code if given good instructions. However, it's important to note that it may make some mistakes and the generated code should be reviewed for accuracy and correctness. Ultimately, whether this is a good strategy for learning Perl depends on the individual's learning style and goals.

]]>But, I just happened to be cleaning out my virtual junk drawer, and stumbled across my "half my life with Perl" slide deck that I had presented at OSCON 2013. Most of the stuff is timeless, as it describes Perl's first 25 years, and my second 25 years and how I influenced Perl, and Perl influenced me, and how my company (Stonehenge) was changed by all of this, and in some ways even changed all of this as well.

Please tune in at 6pm Pacific Time (currently UTC-7) on Monday the 22nd to watch it live. I will try to read the comments quickly at the end of the show and answer any questions as well. The video will remain permanently on Youtube at the address below.

Live link: https://www.youtube.com/watch?v=8VMz7GINc2E

Please share!

]]>qr!/\*.*\*\/!s

Just use a lazy version:

qr!/\*.*?\*\/!s

]]>