ash: 080-2 (draft reference)

1 files changed, 38 insertions, 0 deletions

diff --git a/challenge-080/ash/raku/ch-2.raku b/challenge-080/ash/raku/ch-2.raku
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+++ b/challenge-080/ash/raku/ch-2.raku
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+#!/usr/bin/env raku
+#
+# Task 2 from
+# https://perlweeklychallenge.org/blog/perl-weekly-challenge-080/
+
+use Test;
+
+is candies([1, 2, 2]), 5;
+is candies([1, 4, 3, 2]), 7;
+
+# candies [1, 2, 2];
+# candies [1, 4, 2, 1, 5];
+# candies [1, 2, 2, 1, 3];
+# candies [1, 4, 2, 1, 5, 2, 3, 1, 1, 3, 2];
+
+sub candies(@n) {
+    my @candies = 1 xx @n.elems;
+
+    my $s;
+
+    repeat {
+        $s = @candies.sum;
+
+        @candies[0]++ if @n[0] > @n[1] && @candies[0] <= @candies[1];
+
+        for 1 ..^ @n.end -> $i {
+            @candies[$i]++ if @n[$i] > @n[$i - 1] && @candies[$i] <= @candies[$i - 1];
+            @candies[$i]++ if @n[$i] > @n[$i + 1] && @candies[$i] <= @candies[$i + 1];
+        }
+
+        @candies[*-1]++ if (@n[*-1] > @n[*-2] && @candies[*-1] <= @candies[*-2]) || (@n[*-1] == @n[*-2] && @candies[*-1] < @candies[*-2]);
+
+        say @candies;
+
+    } until $s == @candies.sum;
+
+    return $s;
+}