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
|
#!/usr/bin/perl -s
use v5.24;
use Test2::V0;
use warnings FATAL => 'all';
use Math::Prime::Util qw(vecreduce vecsum todigits);
use Data::Dump qw(dd pp);
use experimental 'signatures';
our ($tests, $examples, $base);
$base ||= 10;
run_tests() if $tests || $examples; # does not return
die <<EOS unless @ARGV;
usage: $0 [-examples] [-tests] [-base=BASE] [N...]
-examples
run the examples from the challenge
-tests
run some tests
-base=BASE
use BASE for number representation. Default: 10
N...
list of numbers
EOS
### Input and Output
say eds($base, @ARGV);
### Implementation
sub eds ($base, @ints) {
vecreduce {$a + $b - vecsum todigits $b, $base} 0, @ints;
}
### Examples and tests
sub run_tests {
SKIP: {
skip "examples" unless $examples;
is eds(10 ,=> 1, 2, 3, 45), 36, 'example 1';
is eds(10 ,=> 1, 12, 3), 9, 'example 2';
is eds(10 ,=> 1, 2, 3, 4), 0, 'example 3';
is eds(10 ,=> 236, 416, 336, 350), 1296, 'example 4';
}
SKIP: {
skip "tests" unless $tests;
is eds(2 ,=> 3, 4), 4, '0b11, 0b100';
}
done_testing;
exit;
}
|
