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Taddeüs Kroes
uva
Commits
1229ac92
Commit
1229ac92
authored
Nov 16, 2011
by
Taddeus Kroes
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funclang series3: implemented challenge.
parent
55f38f26
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funclang-taddeus/series3/ass7.ml
funclang-taddeus/series3/ass7.ml
+13
-6
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funclang-taddeus/series3/ass7.ml
View file @
1229ac92
...
@@ -13,13 +13,10 @@ let heads l = map hd l;;
...
@@ -13,13 +13,10 @@ let heads l = map hd l;;
(* 3 *)
(* 3 *)
let
zip
l
m
=
let
zip
l
m
=
let
rec
cut
l
e
=
let
rec
cut
l
e
=
if
e
=
(
length
l
)
then
l
else
cut
(
rev
(
tl
(
rev
l
)))
e
in
let
len
=
(
length
l
)
in
if
e
=
len
then
l
else
cut
(
rev
(
tl
(
rev
l
)))
e
in
let
min
a
b
=
if
a
>
b
then
b
else
a
in
let
min
a
b
=
if
a
>
b
then
b
else
a
in
let
len
=
min
(
length
l
)
(
length
m
)
in
let
len
=
min
(
length
l
)
(
length
m
)
in
List
.
combine
(
cut
l
len
)
(
cut
m
len
)
combine
(
cut
l
len
)
(
cut
m
len
)
;;
;;
(* 4 *)
(* 4 *)
...
@@ -51,4 +48,14 @@ let rec lookup l key =
...
@@ -51,4 +48,14 @@ let rec lookup l key =
;;
;;
(* Challenge *)
(* Challenge *)
let
rec
coin_permutation
l
n
=
let
perms
coin
l
=
match
coin
with
|
i
when
i
<
n
->
1
+
(
coin_permutation
l
(
n
-
coin
))
|
i
when
i
=
n
->
1
|
_
->
0
in
match
l
with
|
[]
->
0
|
h
::
t
->
(
perms
h
t
)
+
(
coin_permutation
t
n
)
;;
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