From 787dc13c837f0955fbd85b8f26a05d720d361333 Mon Sep 17 00:00:00 2001
From: Shinya Sato <shinnya.sato@gmail.com>
Date: Sun, 24 Oct 2021 23:04:45 +0900
Subject: Upload the comparison directory

---
 comparison/SML/qsort-800000.sml | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 comparison/SML/qsort-800000.sml

(limited to 'comparison/SML/qsort-800000.sml')

diff --git a/comparison/SML/qsort-800000.sml b/comparison/SML/qsort-800000.sml
new file mode 100644
index 0000000..e27af56
--- /dev/null
+++ b/comparison/SML/qsort-800000.sml
@@ -0,0 +1,27 @@
+fun quicksort nil = nil
+  | quicksort (pivot :: rest) =
+    let
+        fun split(nil) = (nil,nil)
+          | split(x :: xs) =
+          let
+            val (below, above) = split(xs)
+          in
+            if x < pivot then (x :: below, above) 
+            else (below, x :: above)
+          end;
+          val (below, above) = split(rest)
+    in
+        quicksort below @ [pivot] @ quicksort above
+    end;
+    
+    
+(* mkRandList *)
+local 
+    val nextInt = Random.randRange(1,10000);
+    val r = Random.rand(1,1);
+in
+  fun mkRandList 0 = []
+    | mkRandList n = (nextInt r)::(mkRandList (n-1))
+end;
+    
+quicksort (mkRandList 800000);
-- 
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