Week 324 solutions in Raku by @ash

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diff --git a/challenge-324/ash/raku/ch-1.raku b/challenge-324/ash/raku/ch-1.raku
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+# Task 1 of Week 324
+# The Weekly Challenge
+# https://theweeklychallenge.org/blog/perl-weekly-challenge-324/#TASK1
+
+# Note: the $r input from the task description is redundant
+# and is not used in the solution.
+
+# Test run:
+# $ raku ch-1.raku 
+# ((1 2) (3 4))
+# ((1 2 3))
+# ((1) (2) (3) (4))
+
+say solve([1, 2, 3, 4], 2);
+say solve([1, 2, 3], 3);
+say solve([1, 2, 3, 4], 1);
+
+
+sub solve(@data, $width) {
+    return @data.rotor($width);
+}
diff --git a/challenge-324/ash/raku/ch-2.raku b/challenge-324/ash/raku/ch-2.raku
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+# Task 2 of Week 324
+# The Weekly Challenge
+# https://theweeklychallenge.org/blog/perl-weekly-challenge-324/#TASK2
+
+say total-xor(1, 3); # 6
+say total-xor(5, 1, 6); # 28
+say total-xor(3, 4, 5, 6, 7, 8); # 480
+
+sub total-xor(*@data) {
+    my $sum = 0;
+
+    for 1..@data.elems {
+        for @data.combinations($_) -> @row {            
+            $sum += [+^] @row;
+        }
+    }
+
+    return $sum;
+}