perl code for challenge 48-1

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diff --git a/challenge-048/walt-mankowski/perl/ch-1.pl b/challenge-048/walt-mankowski/perl/ch-1.pl
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+#!/usr/bin/env perl
+use strict;
+use warnings;
+use feature qw(:5.30);
+use experimental qw(signatures);
+
+# TASK #1
+# Survivor
+# There are 50 people standing in a circle in position 1 to 50. The
+# person standing at position 1 has a sword. He kills the next person
+# i.e. standing at position 2 and pass on the sword to the immediate
+# next i.e. person standing at position 3. Now the person at position 3
+# does the same and it goes on until only one survives.
+
+# Write a script to find out the survivor.
+
+my @person = 1..50;
+my $i = 0;
+while (@person > 1) {
+    my $j = ($i + 1) % @person;
+    splice(@person, $j, 1);
+    $i = ($i + 1) % @person;
+}
+
+say "The survivor is @person";