From 502c7a2dcf607316a4706cb0fffa1e33d5325369 Mon Sep 17 00:00:00 2001
From: "Jaldhar H. Vyas" <jaldhar@braincells.com>
Date: Sun, 19 Jun 2022 16:51:48 -0400
Subject: Challenge 169 by Jaldhar H. Vyas.

---
 challenge-169/jaldhar-h-vyas/blog.txt       |  1 +
 challenge-169/jaldhar-h-vyas/perl/ch-1.pl   | 39 +++++++++++++++++
 challenge-169/jaldhar-h-vyas/perl/ch-2.pl   | 68 +++++++++++++++++++++++++++++
 challenge-169/jaldhar-h-vyas/raku/ch-1.raku | 40 +++++++++++++++++
 challenge-169/jaldhar-h-vyas/raku/ch-2.raku | 47 ++++++++++++++++++++
 5 files changed, 195 insertions(+)
 create mode 100644 challenge-169/jaldhar-h-vyas/blog.txt
 create mode 100755 challenge-169/jaldhar-h-vyas/perl/ch-1.pl
 create mode 100755 challenge-169/jaldhar-h-vyas/perl/ch-2.pl
 create mode 100755 challenge-169/jaldhar-h-vyas/raku/ch-1.raku
 create mode 100755 challenge-169/jaldhar-h-vyas/raku/ch-2.raku

diff --git a/challenge-169/jaldhar-h-vyas/blog.txt b/challenge-169/jaldhar-h-vyas/blog.txt
new file mode 100644
index 0000000000..57dfcf13e6
--- /dev/null
+++ b/challenge-169/jaldhar-h-vyas/blog.txt
@@ -0,0 +1 @@
+https://www.braincells.com/perl/2022/06/perl_weekly_challenge_week_169.html
\ No newline at end of file
diff --git a/challenge-169/jaldhar-h-vyas/perl/ch-1.pl b/challenge-169/jaldhar-h-vyas/perl/ch-1.pl
new file mode 100755
index 0000000000..746fd56a19
--- /dev/null
+++ b/challenge-169/jaldhar-h-vyas/perl/ch-1.pl
@@ -0,0 +1,39 @@
+#!/usr/bin/perl
+use 5.030;
+use warnings;
+
+sub factorize {
+    my ($n) = @_;
+    my @primeFactors;
+
+    while ($n % 2 == 0) {
+        push @primeFactors, 2;
+        $n /=  2; 
+    } 
+     
+    for (my $i = 3; $i <= sqrt $n; $i += 2)  { 
+        while ($n % $i == 0) { 
+            push @primeFactors, $i; 
+            $n /= $i; 
+        } 
+    } 
+     
+    if ($n > 2) { 
+        push @primeFactors, $n;
+    }
+
+    return @primeFactors;
+}
+
+my $n = 2;
+my @brilliants;
+
+until (scalar @brilliants == 20) {
+    my @factors = factorize($n);
+    if (scalar @factors == 2 && length $factors[0] == length $factors[1]) {
+        push @brilliants, $n;
+    }
+    $n++;
+}
+
+say join q{, }, @brilliants;
diff --git a/challenge-169/jaldhar-h-vyas/perl/ch-2.pl b/challenge-169/jaldhar-h-vyas/perl/ch-2.pl
new file mode 100755
index 0000000000..74c774defe
--- /dev/null
+++ b/challenge-169/jaldhar-h-vyas/perl/ch-2.pl
@@ -0,0 +1,68 @@
+#!/usr/bin/perl
+use 5.030;
+use warnings;
+use Math::Round qw/ nearest /;
+
+sub factorize {
+    my ($n) = @_;
+    my @primeFactors;
+
+    while ($n % 2 == 0) {
+        push @primeFactors, 2;
+        $n /=  2; 
+    } 
+     
+    for (my $i = 3; $i <= sqrt $n; $i += 2)  { 
+        while ($n % $i == 0) { 
+            push @primeFactors, $i; 
+            $n /= $i; 
+        } 
+    } 
+     
+    if ($n > 2) { 
+        push @primeFactors, $n;
+    }
+
+    return @primeFactors;
+}
+
+sub isPerfect {
+    my ($n) = @_;
+
+    for my $i (map { nearest(0.001, log($n) / log($_ )) } 2 .. sqrt($n)) {
+        if ($i == int $i) {
+            return 1;
+        }
+    }
+
+    return undef;
+} 
+
+sub isPowerful {
+    my ($n) = @_;
+    my %primeFactors;
+
+    for my $factor (factorize($n)) {
+        $primeFactors{$factor}++;
+    }
+
+    for my $factor (keys %primeFactors) {
+        if ($n % ($factor ** 2) != 0) {
+            return undef;
+        }
+    }
+
+    return 1;
+} 
+
+my $n = 2;
+my @achilles;
+
+until (scalar @achilles == 20) {
+    if  (isPowerful($n) && !isPerfect($n)) {
+        push @achilles, $n;
+    }
+    $n++;
+}
+
+say join q{, }, @achilles;
diff --git a/challenge-169/jaldhar-h-vyas/raku/ch-1.raku b/challenge-169/jaldhar-h-vyas/raku/ch-1.raku
new file mode 100755
index 0000000000..b16cc2d6eb
--- /dev/null
+++ b/challenge-169/jaldhar-h-vyas/raku/ch-1.raku
@@ -0,0 +1,40 @@
+#!/usr/bin/raku
+
+sub factorize(Int $N) {
+    my $n = $N;
+    my @primeFactors;
+
+    while $n %% 2 {
+        @primeFactors.push(2);
+        $n /= 2; 
+    } 
+     
+    loop (my $i = 3; $i <= $n.sqrt; $i += 2)  { 
+        while ($n %% $i) { 
+            @primeFactors.push($i); 
+            $n /= $i; 
+        } 
+    } 
+     
+    if $n > 2 { 
+        @primeFactors.push($n);
+    }
+
+    return @primeFactors;
+}
+
+sub MAIN(
+) {
+    my $n = 2;
+    my @brilliants;
+
+    until @brilliants.elems == 20 {
+        my @factors = factorize($n);
+        if @factors.elems == 2 && @factors[0].chars == @factors[1].chars {
+            @brilliants.push($n);
+        }
+        $n++;
+    }
+
+    @brilliants.join(q{, }).say;
+}
diff --git a/challenge-169/jaldhar-h-vyas/raku/ch-2.raku b/challenge-169/jaldhar-h-vyas/raku/ch-2.raku
new file mode 100755
index 0000000000..bf7ee658dc
--- /dev/null
+++ b/challenge-169/jaldhar-h-vyas/raku/ch-2.raku
@@ -0,0 +1,47 @@
+#!/usr/bin/raku
+
+sub factorize(Int $N) {
+    my $n = $N;
+    my @primeFactors;
+
+    while $n %% 2 {
+        @primeFactors.push(2);
+        $n /= 2;; 
+    } 
+     
+    loop (my $i = 3; $i <= $n.sqrt; $i += 2)  { 
+        while ($n %% $i) { 
+            @primeFactors.push($i); 
+            $n /= $i; 
+        } 
+    } 
+     
+    if $n > 2 { 
+        @primeFactors.push($n);
+    }
+
+    return @primeFactors;
+}
+
+sub isPerfect(Int $n) {
+    return so (2 .. $n.sqrt).map({ $n.log($_).round(0.001); }).any %% 1;
+} 
+
+sub isPowerful(Int $n) {
+    return so $n %% factorize($n).unique.map({ $_ ** 2; }).all;
+} 
+
+sub MAIN(
+) {
+    my $n = 2;
+    my @achilles;
+
+    until @achilles.elems == 20 {
+        if  isPowerful($n) && !isPerfect($n) {
+            @achilles.push($n);
+        }
+        $n++;
+    }
+
+    @achilles.join(q{, }).say;
+}
-- 
cgit