From 675c4080313e477512dba05df0da1e43cd773b9c Mon Sep 17 00:00:00 2001
From: "E. Choroba" <choroba@matfyz.cz>
Date: Mon, 29 Sep 2025 08:41:16 +0200
Subject: Add solutions to 341: Broken Keyboard & Reverse Prefix by E. Choroba

---
 challenge-341/e-choroba/perl/ch-1.pl | 20 ++++++++++++++++++++
 challenge-341/e-choroba/perl/ch-2.pl | 20 ++++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100755 challenge-341/e-choroba/perl/ch-1.pl
 create mode 100755 challenge-341/e-choroba/perl/ch-2.pl

diff --git a/challenge-341/e-choroba/perl/ch-1.pl b/challenge-341/e-choroba/perl/ch-1.pl
new file mode 100755
index 0000000000..473871cfa8
--- /dev/null
+++ b/challenge-341/e-choroba/perl/ch-1.pl
@@ -0,0 +1,20 @@
+#!/usr/bin/perl
+use warnings;
+use strict;
+use experimental qw( signatures );
+
+sub broken_keyboard($str, @keys) {
+    my @words = split ' ', $str;
+    return scalar @words unless @keys;
+
+    my $regex = join "", @keys;
+    return grep ! /[\Q$regex\E]/i, @words
+}
+
+use Test::More tests => 5;
+
+is broken_keyboard('Hello World', 'd'), 1, 'Example 1';
+is broken_keyboard('apple banana cherry', 'a', 'e'), 0, 'Example 2';
+is broken_keyboard('Coding is fun'), 3, 'Example 3';
+is broken_keyboard('The Weekly Challenge', 'a','b'), 2, 'Example 4';
+is broken_keyboard('Perl and Python', 'p'), 1, 'Example 5';
diff --git a/challenge-341/e-choroba/perl/ch-2.pl b/challenge-341/e-choroba/perl/ch-2.pl
new file mode 100755
index 0000000000..063cbf7614
--- /dev/null
+++ b/challenge-341/e-choroba/perl/ch-2.pl
@@ -0,0 +1,20 @@
+#!/usr/bin/perl
+use warnings;
+use strict;
+use experimental qw( signatures );
+
+sub reverse_prefix($str, $char) {
+    my $i = 1 + index $str, $char;
+    return $str if 1 >= $i;
+
+    substr $str, 0, $i, reverse substr $str, 0, $i;
+    return $str
+}
+
+use Test::More tests => 5;
+
+is reverse_prefix('programming', 'g'), 'gorpramming', 'Example 1';
+is reverse_prefix('hello', 'h'), 'hello', 'Example 2';
+is reverse_prefix('abcdefghij', 'h'), 'hgfedcbaij', 'Example 3';
+is reverse_prefix('reverse', 's'), 'srevere', 'Example 4';
+is reverse_prefix('perl', 'r'), 'repl', 'Example 5';
-- 
cgit