From c4ee1dff34ffe41fab580a72ffca5a51aa8075ec Mon Sep 17 00:00:00 2001
From: "E. Choroba" <choroba@matfyz.cz>
Date: Mon, 13 Oct 2025 08:40:26 +0200
Subject: Add solutions to 343: Zero Friend & Champion Team by E. Choroba

---
 challenge-343/e-choroba/perl/ch-1.pl | 18 +++++++++++++
 challenge-343/e-choroba/perl/ch-2.pl | 52 ++++++++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+)
 create mode 100755 challenge-343/e-choroba/perl/ch-1.pl
 create mode 100755 challenge-343/e-choroba/perl/ch-2.pl

diff --git a/challenge-343/e-choroba/perl/ch-1.pl b/challenge-343/e-choroba/perl/ch-1.pl
new file mode 100755
index 0000000000..ea6e3a6536
--- /dev/null
+++ b/challenge-343/e-choroba/perl/ch-1.pl
@@ -0,0 +1,18 @@
+#!/usr/bin/perl
+use warnings;
+use strict;
+use experimental qw( signatures );
+
+sub zero_friend(@nums) {
+    my $zf = abs shift @nums;
+    abs $_ < $zf and $zf = abs for @nums;
+    return $zf
+}
+
+use Test::More tests => 5;
+
+is zero_friend(4, 2, -1, 3, -2), 1, 'Example 1';
+is zero_friend(-5, 5, -3, 3, -1, 1), 1, 'Example 2';
+is zero_friend(7, -3, 0, 2, -8), 0, 'Example 3';
+is zero_friend(-2, -5, -1, -8), 1, 'Example 4';
+is zero_friend(-2, 2, -4, 4, -1, 1), 1, 'Example 5';
diff --git a/challenge-343/e-choroba/perl/ch-2.pl b/challenge-343/e-choroba/perl/ch-2.pl
new file mode 100755
index 0000000000..8d1681722d
--- /dev/null
+++ b/challenge-343/e-choroba/perl/ch-2.pl
@@ -0,0 +1,52 @@
+#!/usr/bin/perl
+use warnings;
+use strict;
+use experimental qw( signatures );
+
+sub champion_team(@grid) {
+    my $max = 0;
+    my %wins;
+    for my $y (0 .. $#grid) {
+        for my $x (0 .. $#{ $grid[$y] }) {
+            my $w = $grid[$y][$x] ? $y : $x;
+            $max = $w if ++$wins{$w} > $wins{$max};
+        }
+    }
+    return "Team $max"
+}
+
+use Test::More tests => 5;
+
+is champion_team(
+                 [0, 1, 1],
+                 [0, 0, 1],
+                 [0, 0, 0],
+               ), 'Team 0', 'Example 1';
+
+is champion_team(
+                 [0, 1, 0, 0],
+                 [0, 0, 0, 0],
+                 [1, 1, 0, 0],
+                 [1, 1, 1, 0],
+               ), 'Team 3', 'Example 2';
+
+is champion_team(
+                 [0, 1, 0, 1],
+                 [0, 0, 1, 1],
+                 [1, 0, 0, 0],
+                 [0, 0, 1, 0],
+               ), 'Team 0', 'Example 3';
+
+is champion_team(
+                 [0, 1, 1],
+                 [0, 0, 0],
+                 [0, 1, 0],
+               ), 'Team 0', 'Example 4';
+
+is champion_team(
+                 [0, 0, 0, 0, 0],
+                 [1, 0, 0, 0, 0],
+                 [1, 1, 0, 1, 1],
+                 [1, 1, 0, 0, 0],
+                 [1, 1, 0, 1, 0],
+               ), 'Team 2', 'Example 5';
-- 
cgit