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#!/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 344 Task 1 Array Form Compute
#=============================================================================
# You are given an array of integers, @ints and an integer, $x.
# Write a script to add $x to the integer in the array-form.
# The array form of an integer is a digit-by-digit representation stored as
# an array, where the most significant digit is at the 0th index.
# Example 1 Input: @ints = (1, 2, 3, 4), $x = 12
# Output: (1, 2, 4, 6)
# 1,2,3,4 ==> 1234 1234+12 = 1246 ==> 1,2,4,6
# Example 2 Input: @ints = (2, 7, 4), $x = 181
# Output: (4, 5, 5)
# Example 3 Input: @ints = (9, 9, 9), $x = 1
# Output: (1, 0, 0, 0)
# Example 4 Input: @ints = (1, 0, 0, 0, 0), $x = 9999
# Output: (1, 9, 9, 9, 9)
# Example 5 Input: @ints = (0), $x = 1000
# Output: (1, 0, 0, 0)
#=============================================================================
use v5.42;
use Getopt::Long;
my $Verbose = false;
my $DoTest = false;
GetOptions("test" => \$DoTest, "verbose" => \$Verbose);
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;
my $ADDEND = pop @ARGV;
say '(' . join(", ", afc( \@ARGV, $ADDEND)->@*), ")";
#=============================================================================
sub afc($int, $x)
{
return [ split(//, join("", $int->@*) + $x) ];
}
sub runTest
{
use Test2::V0;
is( afc([ 1,2,3,4], 12), [ 1,2,4,6], "Example 1");
is( afc([ 2,7,4], 181), [ 4,5,5], "Example 2");
is( afc([ 9,9,9], 1), [ 1,0,0,0], "Example 3");
is( afc([1,0,0,0,0], 9999), [1,9,9,9,9], "Example 4");
is( afc([ 0], 1000), [ 1,0,0,0], "Example 5");
done_testing;
}
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