Merge branch 'develop'

1 files changed, 43 insertions, 0 deletions

diff --git a/comparison/OCaml/msort800000.ml b/comparison/OCaml/msort800000.ml
new file mode 100644
index 0000000..1835b98
--- /dev/null
+++ b/comparison/OCaml/msort800000.ml
@@ -0,0 +1,43 @@
+let rec split (alist : int list) =
+  match alist with
+    [] -> ([], [])
+  | [a] -> ([a], [])
+  | a::b::cs ->
+    let (m,n) = split cs in
+    (a::m, b::m) ;;
+
+let rec merge (alist : int list) (blist : int list) =
+  match alist with
+    [] -> blist
+  | x::xs ->
+    match blist with
+      [] -> x::xs
+    | y::ys ->
+      if x<y then x::(merge xs (y::ys))
+      else y::(merge (x::xs) ys) ;;
+
+
+let rec msort (alist : int list) = 
+  match alist with
+    [] -> []
+  | a::[] -> [a]
+  | a::b::[] -> if a<b then [a;b] else [b;a]
+  | xs ->
+    let (m,n) = split xs
+    in merge (msort m) (msort n) ;;
+    
+
+
+let rec mkRandList n =
+  match n with
+    0 -> []
+  | n -> (Random.int 10000)::(mkRandList (n-1)) ;;
+
+let main = msort (mkRandList 800000) ;;
+
+
+(* 
+The following error arises:
+
+Stack overflow during evaluation (looping recursion?).
+*)