From 69019701d47cc33e5d201616ec8b990aa26dc471 Mon Sep 17 00:00:00 2001
From: rcmlz <19784049+rcmlz@users.noreply.github.com>
Date: Fri, 24 Nov 2023 16:33:05 +0100
Subject: ch-244 Raku solutions

---
 challenge-244/rcmlz/raku/task-one.rakumod | 29 +++++++++++++++++++++++++++++
 challenge-244/rcmlz/raku/task-two.rakumod | 15 +++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 challenge-244/rcmlz/raku/task-one.rakumod
 create mode 100644 challenge-244/rcmlz/raku/task-two.rakumod

diff --git a/challenge-244/rcmlz/raku/task-one.rakumod b/challenge-244/rcmlz/raku/task-one.rakumod
new file mode 100644
index 0000000000..58827215b6
--- /dev/null
+++ b/challenge-244/rcmlz/raku/task-one.rakumod
@@ -0,0 +1,29 @@
+unit module rcmlz::raku::task-one:ver<0.0.1>:auth<github:rcmlz>:api<1>;
+
+# run in terminal: raku --optimize=3 -I challenge-nr244/rcmlz/raku/ -- test/challenge-nr244/raku/task-one.rakutest
+# or               raku --optimize=3 -I challenge-nr244 -- test/benchmark-scalability.raku --task=task-one --user=rcmlz --max-run-times=1,3,7 --max-problem=10 --v=True --test-before-benchmark=True --out-folder=/tmp nr244; cat /tmp/nr244_task-one.csv
+
+#|[
+You are given an array of integers.
+- Write a script to calculate the number of integers smaller than the integer at each index.
+
+O(n log(n))
+]
+our sub solution(@input) is export {
+	my @output[@input.elems];
+
+	my @sorted = @input.sort(:k);
+	my %new-old = @sorted.pairs;
+	my %old-new = @sorted.antipairs;
+
+	# we avoid O(n^2) solution by using double mapping of sorted ids of input array
+	for @input.kv -> $k,$v {
+		my $pos = %old-new{$k};
+		while $pos > 0 && @input[%new-old{$pos - 1}] == $v {
+			$pos--;
+		}
+		@output[$k] = $pos;
+
+	}
+	return @output;
+}
\ No newline at end of file
diff --git a/challenge-244/rcmlz/raku/task-two.rakumod b/challenge-244/rcmlz/raku/task-two.rakumod
new file mode 100644
index 0000000000..2bbc58ce4a
--- /dev/null
+++ b/challenge-244/rcmlz/raku/task-two.rakumod
@@ -0,0 +1,15 @@
+unit module rcmlz::raku::task-two:ver<0.0.1>:auth<github:rcmlz>:api<1>;
+
+# run in terminal: raku --optimize=3 -I challenge-nr244/rcmlz/raku/ -- test/challenge-nr244/raku/task-two.rakutest
+# or               raku --optimize=3 -I challenge-nr244 -- test/benchmark-scalability.raku --task=task-two --user=rcmlz --max-run-times=1,3,7 --max-problem=10 --v=True --test-before-benchmark=True --out-folder=/tmp nr244; cat /tmp/nr244_task-two.csv
+
+#|[
+You are given an array of integers representing the strength.
+- Write a script to return the sum of the powers of all possible combinations; 
+- power is defined as the square of the largest number in a sequence, multiplied by the smallest.
+]
+our sub solution(@input) is export {
+    [+] @input.combinations
+              .grep( *.elems )
+              .map( { .min * .max**2 } )
+}
\ No newline at end of file
-- 
cgit