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Task/Ordered-Partitions/Sidef/ordered-partitions.sidef

@@ -0,0 +1,20 @@
+func part(_,    {.is_empty}) { [[]] }
+func partitions({.is_empty}) { [[]] }
+
+func part(s, args) {
+  gather {
+    s.combinations(args[0], { |c|
+      part(s - c, args.ft(1)).each{|r| take([c] + r) }
+    })
+  }
+}
+
+func partitions(args) {
+  part(@(1..args.sum), args)
+}
+
+[[],[0,0,0],[1,1,1],[2,0,2]].each { |test_case|
+  say "partitions #{test_case}:"
+  partitions(test_case).each{|part| say part }
+  print "\n"
+}