solutions week 100

2 files changed, 50 insertions, 0 deletions

diff --git a/challenge-100/wambash/raku/ch-1.raku b/challenge-100/wambash/raku/ch-1.raku
new file mode 100644
index 0000000000..bd1328645e
--- /dev/null
+++ b/challenge-100/wambash/raku/ch-1.raku
@@ -0,0 +1,26 @@
+#!/usr/bin/env raku
+
+multi fun-time($time) {
+    $time ~~ / (\d+) ':' (\d+) \s* (<[ap]>m)? /;
+
+    with $2 {
+        when 'am'   { $0      ~ ':' ~ $1 }
+        when 'pm'   { $0 + 12 ~ ':' ~ $1 }
+    } orwith $0 {
+        when * ≤ 12 {        $0       ~ ':' ~ $1 ~ 'am' }
+        when * > 12 { '0' ~ ($0 - 12) ~ ':' ~ $1 ~ 'pm' }
+    }
+}
+
+multi MAIN ($time) {
+    say fun-time $time
+}
+
+multi MAIN (Bool :$test! ) {
+    use Test;
+    is fun-time('19:20'),    '07:20pm';
+    is fun-time('07:20pm'),  '19:20';
+    is fun-time('07:20 am'), '07:20';
+    is fun-time('07:20'),    '07:20am';
+    done-testing;
+}
diff --git a/challenge-100/wambash/raku/ch-2.raku b/challenge-100/wambash/raku/ch-2.raku
new file mode 100644
index 0000000000..17f5776857
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+++ b/challenge-100/wambash/raku/ch-2.raku
@@ -0,0 +1,24 @@
+#!/usr/bin/env raku
+
+sub triangle-sum-reducer (@a, @b) {
+    Inf, |@a, Inf
+    andthen .rotor: 2 => -1
+    andthen .map: *.min
+    andthen $_ Z+ @b
+}
+
+sub triangle-sum ( +@a ) {
+    @a
+    andthen .reduce: &triangle-sum-reducer
+    andthen .min
+}
+
+multi MAIN (Bool :$test!) {
+    use Test;
+    is triangle-sum-reducer( [1], [2,4] ), (3,5);
+    is triangle-sum-reducer( [6,4,9], [5,1,7,2] ), (11,5,11,11);
+
+    is triangle-sum( [3], [3,1], [5,2,3], [4,3,1,3] ), 7;
+    is triangle-sum( [1], [2,4], [6,4,9], [5,1,7,2] ), 8;
+    done-testing;
+}