From 3fca1475f6afffcb7cdddaec7dbdc2ea0b521b67 Mon Sep 17 00:00:00 2001
From: Fung Cheok Yin <61836418+E7-87-83@users.noreply.github.com>
Date: Sun, 26 Jul 2020 18:20:28 +0800
Subject: Add files via upload

---
 ch-2.lsp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 ch-2.lsp

diff --git a/ch-2.lsp b/ch-2.lsp
new file mode 100644
index 0000000000..8cce700264
--- /dev/null
+++ b/ch-2.lsp
@@ -0,0 +1,15 @@
+(setf n 4)
+(setf a '(0 1))
+(setf m (- n 1))
+
+(loop for i from 1 upto m do
+  (setf 2power (expt 2 i))
+  (defun add2pow (terms) (+ 2power terms))
+  (setf b (reverse a))
+  (setf b (mapcar #'add2pow b))
+  (setf a (append a b))
+)
+
+;;now the variable a stores the n-bit gray code sequence
+
+a 
-- 
cgit 


From 0801107ed8666794d35b3cb23f72bdfdad6d0120 Mon Sep 17 00:00:00 2001
From: Fung Cheok Yin <61836418+E7-87-83@users.noreply.github.com>
Date: Sun, 26 Jul 2020 18:22:44 +0800
Subject: Update and rename ch-2.lsp to
 challenge-070/cheok-yin-fung/common-lisp/ch-2.lsp

---
 ch-2.lsp                                          | 15 ---------------
 challenge-070/cheok-yin-fung/common-lisp/ch-2.lsp | 17 +++++++++++++++++
 2 files changed, 17 insertions(+), 15 deletions(-)
 delete mode 100644 ch-2.lsp
 create mode 100644 challenge-070/cheok-yin-fung/common-lisp/ch-2.lsp

diff --git a/ch-2.lsp b/ch-2.lsp
deleted file mode 100644
index 8cce700264..0000000000
--- a/ch-2.lsp
+++ /dev/null
@@ -1,15 +0,0 @@
-(setf n 4)
-(setf a '(0 1))
-(setf m (- n 1))
-
-(loop for i from 1 upto m do
-  (setf 2power (expt 2 i))
-  (defun add2pow (terms) (+ 2power terms))
-  (setf b (reverse a))
-  (setf b (mapcar #'add2pow b))
-  (setf a (append a b))
-)
-
-;;now the variable a stores the n-bit gray code sequence
-
-a 
diff --git a/challenge-070/cheok-yin-fung/common-lisp/ch-2.lsp b/challenge-070/cheok-yin-fung/common-lisp/ch-2.lsp
new file mode 100644
index 0000000000..34828f265f
--- /dev/null
+++ b/challenge-070/cheok-yin-fung/common-lisp/ch-2.lsp
@@ -0,0 +1,17 @@
+;; Perl Weekly Challenge 070 Task 2 Gray Code Sequence
+
+(setf n 4)
+(setf a '(0 1))
+(setf m (- n 1))
+
+(loop for i from 1 upto m do
+  (setf 2power (expt 2 i))
+  (defun add2pow (terms) (+ 2power terms))
+  (setf b (reverse a))
+  (setf b (mapcar #'add2pow b))
+  (setf a (append a b))
+)
+
+;; now the variable a stores the n-bit gray code sequence
+
+a 
-- 
cgit 


From 35855be4081a45bf62dd22aa81005b3d50cae802 Mon Sep 17 00:00:00 2001
From: Fung Cheok Yin <61836418+E7-87-83@users.noreply.github.com>
Date: Sun, 26 Jul 2020 18:23:07 +0800
Subject: Add files via upload

---
 challenge-070/cheok-yin-fung/ch-1.pl | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 challenge-070/cheok-yin-fung/ch-1.pl

diff --git a/challenge-070/cheok-yin-fung/ch-1.pl b/challenge-070/cheok-yin-fung/ch-1.pl
new file mode 100644
index 0000000000..109c39195d
--- /dev/null
+++ b/challenge-070/cheok-yin-fung/ch-1.pl
@@ -0,0 +1,22 @@
+#!/usr/bin/perl
+# Perl Weekly Challenge #070 Task 1 Character Swapping
+# Usage: ch-1.pl [string] [swap count] [offset]
+
+my $s = 'perlandraku';
+my $C = 3;
+my $O = 4;
+
+if ($ARGV[0] and $ARGV[1] and $ARGV[2]) {
+    $s = $ARGV[0];
+    $C = $ARGV[1];
+    $O = $ARGV[2];
+}
+
+my $N = length $S;
+
+for my $counter (1..$C) {
+    my $t = substr $s, $counter, 1;
+    my $z = substr($s, $counter+$O, 1, $t);
+    substr $s, $counter, 1, $z;
+    print $counter, " ", $s, "\n";
+}
-- 
cgit 


From 8346a815bbdb6f62862ce129f7b92fdbe4e99649 Mon Sep 17 00:00:00 2001
From: Fung Cheok Yin <61836418+E7-87-83@users.noreply.github.com>
Date: Sun, 26 Jul 2020 18:23:53 +0800
Subject: Rename challenge-070/cheok-yin-fung/ch-1.pl to
 challenge-070/cheok-yin-fung/perl/ch-1.pl

---
 challenge-070/cheok-yin-fung/ch-1.pl      | 22 ----------------------
 challenge-070/cheok-yin-fung/perl/ch-1.pl | 22 ++++++++++++++++++++++
 2 files changed, 22 insertions(+), 22 deletions(-)
 delete mode 100644 challenge-070/cheok-yin-fung/ch-1.pl
 create mode 100644 challenge-070/cheok-yin-fung/perl/ch-1.pl

diff --git a/challenge-070/cheok-yin-fung/ch-1.pl b/challenge-070/cheok-yin-fung/ch-1.pl
deleted file mode 100644
index 109c39195d..0000000000
--- a/challenge-070/cheok-yin-fung/ch-1.pl
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/usr/bin/perl
-# Perl Weekly Challenge #070 Task 1 Character Swapping
-# Usage: ch-1.pl [string] [swap count] [offset]
-
-my $s = 'perlandraku';
-my $C = 3;
-my $O = 4;
-
-if ($ARGV[0] and $ARGV[1] and $ARGV[2]) {
-    $s = $ARGV[0];
-    $C = $ARGV[1];
-    $O = $ARGV[2];
-}
-
-my $N = length $S;
-
-for my $counter (1..$C) {
-    my $t = substr $s, $counter, 1;
-    my $z = substr($s, $counter+$O, 1, $t);
-    substr $s, $counter, 1, $z;
-    print $counter, " ", $s, "\n";
-}
diff --git a/challenge-070/cheok-yin-fung/perl/ch-1.pl b/challenge-070/cheok-yin-fung/perl/ch-1.pl
new file mode 100644
index 0000000000..109c39195d
--- /dev/null
+++ b/challenge-070/cheok-yin-fung/perl/ch-1.pl
@@ -0,0 +1,22 @@
+#!/usr/bin/perl
+# Perl Weekly Challenge #070 Task 1 Character Swapping
+# Usage: ch-1.pl [string] [swap count] [offset]
+
+my $s = 'perlandraku';
+my $C = 3;
+my $O = 4;
+
+if ($ARGV[0] and $ARGV[1] and $ARGV[2]) {
+    $s = $ARGV[0];
+    $C = $ARGV[1];
+    $O = $ARGV[2];
+}
+
+my $N = length $S;
+
+for my $counter (1..$C) {
+    my $t = substr $s, $counter, 1;
+    my $z = substr($s, $counter+$O, 1, $t);
+    substr $s, $counter, 1, $z;
+    print $counter, " ", $s, "\n";
+}
-- 
cgit 


From 3716bc86b67749310024ef2b450d86d29eea7c5a Mon Sep 17 00:00:00 2001
From: Fung Cheok Yin <61836418+E7-87-83@users.noreply.github.com>
Date: Sun, 26 Jul 2020 18:24:22 +0800
Subject: Add files via upload

---
 challenge-070/cheok-yin-fung/perl/ch-2.pl | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 challenge-070/cheok-yin-fung/perl/ch-2.pl

diff --git a/challenge-070/cheok-yin-fung/perl/ch-2.pl b/challenge-070/cheok-yin-fung/perl/ch-2.pl
new file mode 100644
index 0000000000..5d5b17ceb3
--- /dev/null
+++ b/challenge-070/cheok-yin-fung/perl/ch-2.pl
@@ -0,0 +1,21 @@
+#!/usr/bin/perl
+# Perl Weekly Challenge #070 Task 2 Gray Code Sequence
+# Usage: ch-2.pl [order of Gray code wanted to generate]
+
+use strict;
+use warnings;
+
+my @a = (0,1);
+my $N = 3;
+if ($ARGV[0]) {$N = $ARGV[0];}
+
+sub printa {
+    print join " ", @a;
+    print "\n";
+}
+
+for my $i (2..$N) {
+    push @a, reverse (map {$_ + 2**($i-1)} @a);
+}
+
+printa;
-- 
cgit 


From f6795e0b8479e43c601aeccd0d8091f7e7a67517 Mon Sep 17 00:00:00 2001
From: Fung Cheok Yin <61836418+E7-87-83@users.noreply.github.com>
Date: Sun, 26 Jul 2020 18:26:59 +0800
Subject: Update ch-1.pl

---
 challenge-070/cheok-yin-fung/perl/ch-1.pl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/challenge-070/cheok-yin-fung/perl/ch-1.pl b/challenge-070/cheok-yin-fung/perl/ch-1.pl
index 109c39195d..042304fe2d 100644
--- a/challenge-070/cheok-yin-fung/perl/ch-1.pl
+++ b/challenge-070/cheok-yin-fung/perl/ch-1.pl
@@ -2,6 +2,9 @@
 # Perl Weekly Challenge #070 Task 1 Character Swapping
 # Usage: ch-1.pl [string] [swap count] [offset]
 
+use strict;
+use warnings;
+
 my $s = 'perlandraku';
 my $C = 3;
 my $O = 4;
@@ -12,7 +15,6 @@ if ($ARGV[0] and $ARGV[1] and $ARGV[2]) {
     $O = $ARGV[2];
 }
 
-my $N = length $S;
 
 for my $counter (1..$C) {
     my $t = substr $s, $counter, 1;
-- 
cgit