From e18b27f43ac23689822d4aaaaa3e8d550e41017a Mon Sep 17 00:00:00 2001
From: Shinya Sato <shinnya.sato@gmail.com>
Date: Mon, 30 May 2022 20:36:38 +0900
Subject: v0.8.2-2

---
 comparison/Haskell/bsort-20000.hs | 45 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 comparison/Haskell/bsort-20000.hs

(limited to 'comparison/Haskell/bsort-20000.hs')

diff --git a/comparison/Haskell/bsort-20000.hs b/comparison/Haskell/bsort-20000.hs
new file mode 100644
index 0000000..89ecfab
--- /dev/null
+++ b/comparison/Haskell/bsort-20000.hs
@@ -0,0 +1,45 @@
+{-
+https://gist.github.com/masquerade0324/68f4f3fd3ab897fbe1ad 
+http://files.farka.eu/pub/AC21007/lec5.pdf
+-}
+
+import System.Random
+
+bs xs 0 = xs
+bs (x:y:ys) n =
+  if x<y then x:(bs (y:ys) (n-1))
+  else y:(bs (x:ys) (n-1))
+bs xs n = xs
+
+
+go xs 0 = xs
+go xs n = go (bs xs n) (n-1)
+
+bsort [] = []
+bsort xs = go xs (length xs -1)
+
+{-
+main = print $ bsort [3,2,8,5]
+-}
+
+
+randomList :: Int -> IO([Int])
+randomList 0 = return []
+randomList n = do
+  r  <- randomRIO (1,10000)
+  rs <- randomList (n-1)
+  return (r:rs)
+
+
+validation [] = True
+validation (x:xs) = validation_cons x xs
+validation_cons x [] = True
+validation_cons x (y:ys) =
+  if x<=y then validation_cons y ys
+  else False
+
+
+main = do
+  list <- randomList 20000
+  let sorted = bsort list
+  print (validation sorted)
-- 
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