1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
#!/usr/bin/env perl
# vim:set ts=4 sw=4 sts=4 et ai wm=0 nu:
#=============================================================================
# Copyright (c) 2025, Bob Lied
#=============================================================================
# ch-1.pl Perl Weekly Challenge 329 Task 1 Counter Integers
#=============================================================================
# You are given a string containing only lower case English letters and digits.
# Write a script to replace every non-digit character with a space and then
# return all the distinct integers left.
# Example 1 Input: $str = "the1weekly2challenge2"
# Output: 1, 2
# 2 is appeared twice, so we count it one only.
# Example 2 Input: $str = "go21od1lu5c7k"
# Output: 21, 1, 5, 7
# Example 3 Input: $str = "4p3e2r1l"
# Output: 4, 3, 2, 1
#=============================================================================
use v5.40;
use Getopt::Long;
my $Verbose = false;
my $DoTest = false;
my $Benchmark = 0;
GetOptions("test" => \$DoTest, "verbose" => \$Verbose, "benchmark:i" => \$Benchmark);
my $logger;
{
use Log::Log4perl qw(:easy);
Log::Log4perl->easy_init({ level => ($Verbose ? $DEBUG : $INFO ),
layout => "%d{HH:mm:ss.SSS} %p{1} %m%n" });
$logger = Log::Log4perl->get_logger();
}
#=============================================================================
exit(!runTest()) if $DoTest;
exit( runBenchmark($Benchmark) ) if $Benchmark;
say join(", ", count($_)->@*) for @ARGV;
#=============================================================================
sub count($str)
{
# Preserve order while eliminating repeated elements
my $order = 1;
my %present;
$present{$_} //= $order++ for ( my @ints = $str =~ m/\d+/g );
return [ sort { $present{$a} <=> $present{$b} } keys %present ];
}
sub runTest
{
use Test2::V0;
is( count("the1weekly2challenge2"), [1,2], "Example 1");
is( count("go21od1lu5c7k"), [21,1,5,7], "Example 2");
is( count("4p3e2r1l"), [4,3,2,1], "Example 3");
done_testing;
}
sub runBenchmark($repeat)
{
use Benchmark qw/cmpthese/;
cmpthese($repeat, {
label => sub { },
});
}
|
