From de8820341c75c44bfa1b66dcaccbd9116681067e Mon Sep 17 00:00:00 2001
From: 冯昶 <fengchang@novel-supertv.com>
Date: Tue, 17 Jan 2023 10:04:44 +0800
Subject: challenge 200, raku solutions

---
 challenge-200/feng-chang/raku/ch-1.raku |  8 ++++++++
 challenge-200/feng-chang/raku/ch-2.raku | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100755 challenge-200/feng-chang/raku/ch-1.raku
 create mode 100755 challenge-200/feng-chang/raku/ch-2.raku

diff --git a/challenge-200/feng-chang/raku/ch-1.raku b/challenge-200/feng-chang/raku/ch-1.raku
new file mode 100755
index 0000000000..e3decf7bec
--- /dev/null
+++ b/challenge-200/feng-chang/raku/ch-1.raku
@@ -0,0 +1,8 @@
+#!/bin/env raku
+
+unit sub MAIN(*@N);
+
+.put for (^+@N X ^+@N)
+    .grep({ .[1] - .[0] > 1 })
+    .grep({ [==] (.[0] ..^ .[1]).map({ @N[$_+1] - @N[$_] }) })
+    .map({ "({ @N[.[0] .. .[1]].join(', ') })" });
diff --git a/challenge-200/feng-chang/raku/ch-2.raku b/challenge-200/feng-chang/raku/ch-2.raku
new file mode 100755
index 0000000000..e50151bf9a
--- /dev/null
+++ b/challenge-200/feng-chang/raku/ch-2.raku
@@ -0,0 +1,32 @@
+#!/bin/env raku
+
+use v6.d;
+unit sub MAIN(UInt:D $n);
+
+my @N = $n.comb;
+my @truth is Array = <abcdef bc abdeg abcdg bcfg acdfg acdefg abc abcdefg abcfg>;
+my @display = [' ' xx (9 * @N.elems - 2)] xx 7;
+my $offset = 0;
+
+for @N -> $d {
+    for @truth[$d].comb -> $seg {
+        given $seg {
+            when 'a' { @display[0;$offset..$offset+6] X= '-'; }
+            when 'b' { @display[1..2;$offset+6]       X= '|'; }
+            when 'c' { @display[4..5;$offset+6]       X= '|'; }
+            when 'd' { @display[6;$offset..$offset+6] X= '-'; }
+            when 'e' { @display[4..5;$offset]         X= '|'; }
+            when 'f' { @display[1..2;$offset]         X= '|'; }
+            when 'g' { @display[3;$offset..$offset+6] X= '-'; }
+            default  { die "wrong segment «$seg»"; }
+        }
+
+        #| must do something here
+        #my $question = 'but why?!';
+        LAST { }
+    }
+
+    $offset += 9;
+}
+
+.join.put for @display;
-- 
cgit