Challenge 164 by Jaldhar H. Vyas.

5 files changed, 101 insertions, 0 deletions

diff --git a/challenge-164/jaldhar-h-vyas/blog.txt b/challenge-164/jaldhar-h-vyas/blog.txt
new file mode 100644
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+++ b/challenge-164/jaldhar-h-vyas/blog.txt
@@ -0,0 +1 @@
+https://www.braincells.com/perl/2022/05/perl_weekly_challenge_week_164.html
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diff --git a/challenge-164/jaldhar-h-vyas/perl/ch-1.pl b/challenge-164/jaldhar-h-vyas/perl/ch-1.pl
new file mode 100755
index 0000000000..3ed797dbb8
--- /dev/null
+++ b/challenge-164/jaldhar-h-vyas/perl/ch-1.pl
@@ -0,0 +1,25 @@
+#!/usr/bin/perl
+use 5.030;
+use warnings;
+
+sub isPrime {
+    my ($n) = @_;
+
+    if ($n < 2) {
+        return undef;
+    }
+
+    if ($n == 2) {
+        return 1;
+    }
+
+    for my $i (2 .. sqrt($n)) {
+        if ($n % $i == 0) {
+            return undef;
+        }
+    }
+
+    return 1;
+}
+
+say join q{ }, grep { isPrime($_) && $_ == reverse $_ } 1 .. 1000;
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diff --git a/challenge-164/jaldhar-h-vyas/perl/ch-2.pl b/challenge-164/jaldhar-h-vyas/perl/ch-2.pl
new file mode 100755
index 0000000000..1567175a76
--- /dev/null
+++ b/challenge-164/jaldhar-h-vyas/perl/ch-2.pl
@@ -0,0 +1,42 @@
+#!/usr/bin/perl
+use 5.030;
+use warnings;
+
+sub sum {
+    my ($arr) = @_;
+    my $total = 0;
+
+    for my $elem (@{$arr}) {
+        $total += $elem;
+    }
+
+    return $total;
+}
+
+sub isHappy {
+    my ($i) = @_;
+    my $tries = 0;
+    my $s = $i;
+
+    while ($s != 1) {
+        if ($tries == 8) {
+            return undef;
+        }
+        $s = sum([map { $_ ** 2 } split //, $s]);
+        $tries++;
+    }
+
+    return 1;
+}
+
+my @happy;
+my $i = 1;
+
+while (scalar @happy < 8) {
+    if (isHappy($i)) {
+        push @happy, $i;
+    }
+    $i++;
+}
+
+say join q{ }, @happy;
diff --git a/challenge-164/jaldhar-h-vyas/raku/ch-1.sh b/challenge-164/jaldhar-h-vyas/raku/ch-1.sh
new file mode 100755
index 0000000000..4f47143857
--- /dev/null
+++ b/challenge-164/jaldhar-h-vyas/raku/ch-1.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+raku -e '(1 .. 1000).grep({ $_.is-prime && $_ == $_.flip }).join(q{ }).say;'
diff --git a/challenge-164/jaldhar-h-vyas/raku/ch-2.raku b/challenge-164/jaldhar-h-vyas/raku/ch-2.raku
new file mode 100755
index 0000000000..385e710283
--- /dev/null
+++ b/challenge-164/jaldhar-h-vyas/raku/ch-2.raku
@@ -0,0 +1,30 @@
+#!/usr/bin/raku
+
+sub isHappy(Int $i) {
+    my $tries = 0;
+    my $s = $i;
+
+    while $s != 1 {
+        if $tries == 8 {
+            return False;
+        }
+        $s = $s.comb.map({ $_ ** 2 }).sum;
+        $tries++;
+    }
+
+    return True;
+}
+
+sub MAIN() {
+    my @happy;
+    my $i = 1;
+
+    while @happy.elems < 8 {
+        if isHappy($i) {
+            @happy.push($i);
+        }
+        $i++;
+    }
+
+    @happy.join(q{ }).say;
+}
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