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ch-1.pl
executable file
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/
ch-1.pl
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#!/usr/bin/perl -s
use v5.24;
use Test2::V0 '!float';
use PDL;
our ($tests, $examples);
run_tests() if $tests || $examples; # does not return
die <<EOS unless @ARGV > 1;
usage: $0 [-examples] [-tests] [K I...]
-examples
run the examples from the challenge
-tests
run some tests
K
target value
I...
list of numbers
EOS
### Input and Output
say t_idx(@ARGV);
### Implementation
sub t_idx {
my $k = shift;
which $k == pdl(@_)->qsort;
}
### Examples and tests
sub run_tests {
SKIP: {
skip "examples" unless $examples;
is t_idx(2 ,=> 1, 5, 3, 2, 4, 2)->unpdl, [1, 2], 'example 1';
is t_idx(6 ,=> 1, 2, 3, 4, 5)->unpdl, [], 'example 2';
is t_idx(4 ,=> 5, 3, 2, 4, 2, 1)->unpdl, [4], 'example 3';
}
SKIP: {
skip "tests" unless $tests;
}
done_testing;
exit;
}