Merge pull request #7538 from zapwai/branch-for-203

Week 203

2 files changed, 56 insertions, 0 deletions

diff --git a/challenge-203/zapwai/perl/ch-1.pl b/challenge-203/zapwai/perl/ch-1.pl
new file mode 100644
index 0000000000..fe6eefcd89
--- /dev/null
+++ b/challenge-203/zapwai/perl/ch-1.pl
@@ -0,0 +1,23 @@
+use v5.30.0;
+my @array = (1,2,3,6);
+#my @array = (1,1,1,3,5);
+#my @array = (3,3,6,4,5);
+my $str;
+my $cnt;
+for my $a (0 .. $#array - 3) {
+    for my $b ($a + 1 .. $#array - 2) {
+	for my $c ($b + 1 .. $#array - 1) {
+	    for my $d ($c + 1 .. $#array) {
+		my $sum = $array[$a] + $array[$b] + $array[$c];
+		if ($sum == $array[$d]) {
+		    $cnt++ ;
+		    $str .= "\$array[$a] + \$array[$b] + \$array[$c] == \$array[$d]\n";
+		}
+	    }
+	}
+    }
+}
+say "Input: \@array = (".join(",",@array).")";
+$cnt = 0 unless ($cnt);
+say "Output: $cnt";
+print $str;
diff --git a/challenge-203/zapwai/perl/ch-2.pl b/challenge-203/zapwai/perl/ch-2.pl
new file mode 100644
index 0000000000..f762a169fe
--- /dev/null
+++ b/challenge-203/zapwai/perl/ch-2.pl
@@ -0,0 +1,33 @@
+use v5.30.0;
+my $source = '/a/b/c/';
+my $target = '/x/y/';
+
+opendir my $dh, $source or die "$!";
+my @files = readdir $dh;
+closedir $dh;
+my @dirs;
+foreach (@files) {
+    next if (($_ eq ".") or ($_ eq ".."));
+    push @dirs, $_ if (-d $source.$_);
+}
+for (@dirs) {
+    #mkdir $target.$_;
+    say $target.$_;
+    proc($_);
+}
+
+sub proc {
+    my $wd = shift;
+    opendir my $dh, $source.$wd or die "$!";
+    my @files = readdir $dh;
+    closedir $dh;
+    foreach (@files) {
+	my $dir = "$wd/$_";
+	next if (($_ eq ".") or ($_ eq ".."));
+	if (-d $source.$dir) {
+	    push @dirs, $dir;
+#	    mkdir $target.$dir;	    
+	    say $target.$dir;
+	}
+    }
+}