blob: 392644fa44092d0ce143cbf78af9d8a147386a9c (
plain)
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 v5.20;
use Test2::V0 '!float';
use PDL;
use PDL::NiceSlice;
use experimental 'signatures';
our ($tests, $examples, $verbose, $rot);
$rot //= 0;
run_tests() if $tests || $examples; # does not return
die <<EOS unless @ARGV;
usage: $0 [-examples] [-tests] [-rot=ROT] [MATRIX]
-examples
run the examples from the challenge
-tests
run some tests
-rot=ROT
rotate given matrix by ROT * 90° clockwise
MATRIX
a matrix in any form as accepted by the PDL string constructor
EOS
### Input and Output
main: {
my $m = long "@ARGV";
$m = rot_m($m) for 1 .. $rot;
say $m;
}
### Implementation
sub rot_m ($m) {
$m->xchg(0,1)->(-1:0);
}
### Examples and tests
sub run_tests {
SKIP: {
skip "examples" unless $examples;
my $m = long [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ];
say $m = rot_m($m) for 1 .. 3;
}
SKIP: {
skip "tests" unless $tests;
}
done_testing;
exit;
}
|
