6 files changed, 116 insertions, 0 deletions
diff --git a/challenge-156/adam-russell/blog.txt b/challenge-156/adam-russell/blog.txt
new file mode 100644
index 0000000000..766992c2ff
--- /dev/null
+++ b/challenge-156/adam-russell/blog.txt
@@ -0,0 +1 @@
+http://www.rabbitfarm.com/cgi-bin/blosxom/perl/2022/03/20
diff --git a/challenge-156/adam-russell/blog1.txt b/challenge-156/adam-russell/blog1.txt
new file mode 100644
index 0000000000..7ee269dddc
--- /dev/null
+++ b/challenge-156/adam-russell/blog1.txt
@@ -0,0 +1 @@
+http://www.rabbitfarm.com/cgi-bin/blosxom/prolog/2022/03/20
diff --git a/challenge-156/adam-russell/perl/ch-1.pl b/challenge-156/adam-russell/perl/ch-1.pl
new file mode 100644
index 0000000000..f7cb57d15f
--- /dev/null
+++ b/challenge-156/adam-russell/perl/ch-1.pl
@@ -0,0 +1,33 @@
+use strict;
+use warnings;
+##
+# Write a script to generate the first 10 Pernicious Numbers.
+## 
+use Math::Primality qw/is_prime/;
+
+sub count_bits{
+    my($n) = @_;
+    my $total_count_set_bit = 0;
+    while($n){
+        my $b = $n & 1;
+        $total_count_set_bit++ if $b;
+        $n = $n >> 1;
+    }
+    return $total_count_set_bit;
+}
+
+sub first_n_pernicious{
+    my($n) = @_;
+    my @pernicious;
+    my $x = 1;
+    do{
+        my $set_bits = count_bits($x);
+        push @pernicious, $x if is_prime($set_bits);
+        $x++;
+    }while(@pernicious < $n);
+    return @pernicious;
+}
+
+MAIN:{
+    print join(", ", first_n_pernicious(10)) . "\n";
+}
+\ No newline at end of file
diff --git a/challenge-156/adam-russell/perl/ch-2.pl b/challenge-156/adam-russell/perl/ch-2.pl
new file mode 100644
index 0000000000..945f1ccaec
--- /dev/null
+++ b/challenge-156/adam-russell/perl/ch-2.pl
@@ -0,0 +1,33 @@
+use strict;
+use warnings;
+##
+# You are given number, $n > 0. Write a script to find out if 
+# the given number is a Weird Number.
+##
+use boolean;
+use Data::PowerSet q/powerset/;
+
+sub factor{
+    my($n) = @_;
+    my @factors = (1);
+    foreach  my $j (2 .. sqrt($n)){
+        push @factors, $j if $n % $j == 0;
+        push @factors, ($n / $j) if $n % $j == 0 && $j ** 2 != $n;
+    }
+    return @factors;  
+}
+
+sub is_weird{
+    my($x) = @_;
+    my @factors = factor($x); 
+    my $sum = unpack("%32I*", pack("I*",  @factors));
+    for my $subset (@{powerset(@factors)}){
+        return false if unpack("%32I*", pack("I*",  @{$subset})) == $x;
+    }  
+    return boolean($sum > $x);
+}
+
+MAIN:{
+    print is_weird(12) . "\n";
+    print is_weird(70) . "\n";
+}
+\ No newline at end of file
diff --git a/challenge-156/adam-russell/prolog/ch-1.p b/challenge-156/adam-russell/prolog/ch-1.p
new file mode 100644
index 0000000000..c8dfbeaf9c
--- /dev/null
+++ b/challenge-156/adam-russell/prolog/ch-1.p
@@ -0,0 +1,12 @@
+pernicious(_) --> [].
+pernicious(Seen) --> [X], x(Seen, X), {set_bits(X, Bits), fd_prime(Bits)}, pernicious([X|Seen]).
+x(Seen, X) --> {between(1, 100, X), \+ member(X, Seen)}. 
+
+set_bits(N, X):-
+    set_bits(N, 0, X).
+set_bits(0, X, X).
+set_bits(N, X_Acc, X):-
+    B is N /\ 1,
+    X0 is X_Acc + B,
+    N0 is N >> 1,
+    set_bits(N0, X0, X), !.
+\ No newline at end of file
diff --git a/challenge-156/adam-russell/prolog/ch-2.p b/challenge-156/adam-russell/prolog/ch-2.p
new file mode 100644
index 0000000000..e2f671c56a
--- /dev/null
+++ b/challenge-156/adam-russell/prolog/ch-2.p
@@ -0,0 +1,36 @@
+weird(_) --> [].
+weird(Seen) --> [X], x(Seen, X), {
+    findall(F, factor(X, F), Factors), flatten([1, Factors], FlatFactors),
+    sum_list(FlatFactors, FactorSum), 
+    FactorSum > X, 
+    powerset(FlatFactors, FactorSets),
+    maplist(sum_list, FactorSets, FactorSetSums),
+    \+ member(X, FactorSetSums)
+    }, 
+    weird([X|Seen]).
+x(Seen, X) --> {between(1, 1000, X), \+ member(X, Seen)}. 
+
+powerset(X,Y):- bagof(S, subseq(S,X), Y).
+subseq([], []).
+subseq([], [_|_]).
+subseq([X|Xs], [X|Ys] ):- subseq(Xs, Ys).
+subseq([X|Xs], [_|Ys] ):- append(_, [X|Zs], Ys), subseq(Xs, Zs).
+
+factor(N, Factors):-
+    S is round(sqrt(N)),
+    fd_domain(X, 2, S),
+    R #= N rem X,
+    R #= 0,
+    Q #= N // X,
+    Q #\= X,
+    fd_labeling([Q, X]),
+    Factors = [Q, X].
+factor(N, Factors):-
+    S is round(sqrt(N)),
+    fd_domain(X, 2, S),
+    R #= N rem X,
+    R #= 0,
+    Q #= N // X,
+    Q #= X,
+    fd_labeling([Q]),
+    Factors = [Q].   
+\ No newline at end of file