211 solutions for Avery Adams

2 files changed, 79 insertions, 0 deletions

diff --git a/challenge-211/avery-adams/perl/ch-1.pl b/challenge-211/avery-adams/perl/ch-1.pl
new file mode 100644
index 0000000000..c937936243
--- /dev/null
+++ b/challenge-211/avery-adams/perl/ch-1.pl
@@ -0,0 +1,29 @@
+#!/bin/perl
+
+use strict;
+use v5.28;
+
+my @matrix1 = (
+    [4, 3, 2, 1],
+    [5, 4, 3, 2],
+    [6, 5, 4, 3],
+);
+
+my @matrix2 = ([1, 2, 3], [3, 2, 1]);
+
+say 'Is Matrix1 a Toeplitz matrix? : ' . (is_toeplitz(@matrix1) ? 'TRUE' : 'FALSE');
+say 'Is Matrix2 a Toeplitz matrix? : ' . (is_toeplitz(@matrix2) ? 'TRUE' : 'FALSE');
+
+sub is_toeplitz {
+    my @matrix = @_;
+
+    my $rows = scalar @matrix;
+    my $cols = scalar @{$matrix[0]};
+
+    for (my $r = 1; $r < $rows; $r++) {
+        for (my $c = 1; $c < $cols; $c++) {
+            if ($matrix[$r][$c] != $matrix[$r - 1][$c - 1]) {return 0;}
+        }
+    }
+    return 1;
+}
diff --git a/challenge-211/avery-adams/perl/ch-2.pl b/challenge-211/avery-adams/perl/ch-2.pl
new file mode 100644
index 0000000000..bd2dfb85a9
--- /dev/null
+++ b/challenge-211/avery-adams/perl/ch-2.pl
@@ -0,0 +1,50 @@
+#!/bin/perl
+
+use strict;
+use v5.28;
+
+use List::Util 'sum';
+
+if ($#ARGV > 0) {can_split(@ARGV) ? say 'true' : say 'false'};
+
+sub can_split {
+    my @nums = sort {$b <=> $a} (@_);
+    my $maxindex = scalar @nums;
+    my $avg = sum(@nums) / scalar(@nums);
+    my (@list1, @list2, $sum1, $sum2);
+
+    for (my $i = 0; $i < $maxindex; $i++) {
+        if (scalar @list1 == 0) {
+            push @list1, @nums[0];
+            $sum1 += @nums[0];
+            splice @nums, 0, 1;
+        } elsif (scalar @list2 == 0) {
+            push @list2, @nums[0];
+            $sum2 += @nums[0];
+            splice @nums, 0, 1;
+        } else {
+            if (abs(($sum1 / @list1) - $avg) >= abs(($sum2 / @list2) - $avg)) {
+                if ($sum1 / @list1 <= $avg) {
+                    push @list1, @nums[0];
+                    $sum1 += @nums[0];
+                    splice @nums, 0, 1;
+                } else {
+                    push @list1, @nums[$#nums];
+                    $sum1 += @nums[$#nums];
+                    splice @nums, $#nums, 1;
+                }
+            } else {
+                if ($sum2 / @list2 <= $avg) {
+                    push @list2, @nums[0];
+                    $sum2 += @nums[0];
+                    splice @nums, 0, 1;
+                } else {
+                    push @list2, @nums[$#nums];
+                    $sum2 += @nums[$#nums];
+                    splice @nums, $#nums, 1;
+                }
+            }
+        }
+    }
+    $sum1 / scalar @list1 == $sum2 / scalar @list2 ? return 1 : return 0;
+}