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Ingy döt Net 2026-02-01 16:33:20 -08:00
parent 5150844a7d
commit 4bb20c9b71
7735 changed files with 38060 additions and 199180 deletions
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32
Task/Flatten-a-list/Ada/flatten-a-list-1.ada
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@ -1,32 +0,0 @@
generic
type Element_Type is private;
with function To_String (E : Element_Type) return String is <>;
package Nestable_Lists is
type Node_Kind is (Data_Node, List_Node);
type Node (Kind : Node_Kind);
type List is access Node;
type Node (Kind : Node_Kind) is record
Next : List;
case Kind is
when Data_Node =>
Data : Element_Type;
when List_Node =>
Sublist : List;
end case;
end record;
procedure Append (L : in out List; E : Element_Type);
procedure Append (L : in out List; N : List);
function Flatten (L : List) return List;
function New_List (E : Element_Type) return List;
function New_List (N : List) return List;
function To_String (L : List) return String;
end Nestable_Lists;

79
Task/Flatten-a-list/Ada/flatten-a-list-2.ada
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with Ada.Strings.Unbounded;
package body Nestable_Lists is
procedure Append (L : in out List; E : Element_Type) is
begin
if L = null then
L := new Node (Kind => Data_Node);
L.Data := E;
else
Append (L.Next, E);
end if;
end Append;
procedure Append (L : in out List; N : List) is
begin
if L = null then
L := new Node (Kind => List_Node);
L.Sublist := N;
else
Append (L.Next, N);
end if;
end Append;
function Flatten (L : List) return List is
Result : List;
Current : List := L;
Temp : List;
begin
while Current /= null loop
case Current.Kind is
when Data_Node =>
Append (Result, Current.Data);
when List_Node =>
Temp := Flatten (Current.Sublist);
while Temp /= null loop
Append (Result, Temp.Data);
Temp := Temp.Next;
end loop;
end case;
Current := Current.Next;
end loop;
return Result;
end Flatten;
function New_List (E : Element_Type) return List is
begin
return new Node'(Kind => Data_Node, Data => E, Next => null);
end New_List;
function New_List (N : List) return List is
begin
return new Node'(Kind => List_Node, Sublist => N, Next => null);
end New_List;
function To_String (L : List) return String is
Current : List := L;
Result : Ada.Strings.Unbounded.Unbounded_String;
begin
Ada.Strings.Unbounded.Append (Result, "[");
while Current /= null loop
case Current.Kind is
when Data_Node =>
Ada.Strings.Unbounded.Append
(Result, To_String (Current.Data));
when List_Node =>
Ada.Strings.Unbounded.Append
(Result, To_String (Current.Sublist));
end case;
if Current.Next /= null then
Ada.Strings.Unbounded.Append (Result, ", ");
end if;
Current := Current.Next;
end loop;
Ada.Strings.Unbounded.Append (Result, "]");
return Ada.Strings.Unbounded.To_String (Result);
end To_String;
end Nestable_Lists;

29
Task/Flatten-a-list/Ada/flatten-a-list-3.ada
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@ -1,29 +0,0 @@
with Ada.Text_IO;
with Nestable_Lists;
procedure Flatten_A_List is
package Int_List is new Nestable_Lists
(Element_Type => Integer,
To_String => Integer'Image);
List : Int_List.List := null;
begin
Int_List.Append (List, Int_List.New_List (1));
Int_List.Append (List, 2);
Int_List.Append (List, Int_List.New_List (Int_List.New_List (3)));
Int_List.Append (List.Next.Next.Sublist.Sublist, 4);
Int_List.Append (List.Next.Next.Sublist, 5);
Int_List.Append (List, Int_List.New_List (Int_List.New_List (null)));
Int_List.Append (List, Int_List.New_List (Int_List.New_List
(Int_List.New_List (6))));
Int_List.Append (List, 7);
Int_List.Append (List, 8);
Int_List.Append (List, null);
declare
Flattened : constant Int_List.List := Int_List.Flatten (List);
begin
Ada.Text_IO.Put_Line (Int_List.To_String (List));
Ada.Text_IO.Put_Line (Int_List.To_String (Flattened));
end;
end Flatten_A_List;

6
Task/Flatten-a-list/Emacs-Lisp/flatten-a-list-1.l
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(defun flatten (mylist)
(cond
((null mylist) nil)
((atom mylist) (list mylist))
(t
(append (flatten (car mylist)) (flatten (cdr mylist))))))

1
Task/Flatten-a-list/Emacs-Lisp/flatten-a-list-2.l
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(flatten-tree mylist)

21
Task/Flatten-a-list/Euphoria/flatten-a-list.ex
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@ -1,21 +0,0 @@
sequence a = {{1}, 2, {{3, 4}, 5}, {{{}}}, {{{6}}}, 7, 8, {}}
function flatten( object s )
sequence res = {}
if sequence( s ) then
for i = 1 to length( s ) do
sequence c = flatten( s[ i ] )
if length( c ) > 0 then
res &= c
end if
end for
else
if length( s ) > 0 then
res = { s }
end if
end if
return res
end function
? a
? flatten(a)

4
Task/Flatten-a-list/Phix/flatten-a-list.phix
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@ -1 +1,3 @@
?flatten({{1},2,{{3,4},5},{{{}}},{{{6}}},7,8,{}})
(phixonline)(not pygments)-->
<span style="color: #0000FF;">?</span><span style="color: #7060A8;">flatten</span><span style="color: #0000FF;">({{</span><span style="color: #000000;">1</span><span style="color: #0000FF;">},</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,{{</span><span style="color: #000000;">3</span><span style="color: #0000FF;">,</span><span style="color: #000000;">4</span><span style="color: #0000FF;">},</span><span style="color: #000000;">5</span><span style="color: #0000FF;">},{{{}}},{{{</span><span style="color: #000000;">6</span><span style="color: #0000FF;">}}},</span><span style="color: #000000;">7</span><span style="color: #0000FF;">,</span><span style="color: #000000;">8</span><span style="color: #0000FF;">,{}})</span>
<!--

7
Task/Flatten-a-list/PowerShell/flatten-a-list.psh
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@ -1,7 +0,0 @@
function flatten($a) {
if($a.Count -gt 1) {
$a | foreach{ $(flatten $_)}
} else {$a}
}
$a = @(@(1), 2, @(@(3,4), 5), @(@(@())), @(@(@(6))), 7, 8, @())
"$(flatten $a)"

9
Task/Flatten-a-list/REBOL/flatten-a-list.rebol
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flatten: func [
"Flatten the block in place."
block [any-block!]
][
parse block [
any [block: any-block! (change/part block first block 1) :block | skip]
]
head block
]

32
Task/Flatten-a-list/VBScript/flatten-a-list-1.vb
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@ -1,32 +0,0 @@
class flattener
dim separator
sub class_initialize
separator = ","
end sub
private function makeflat( a )
dim i
dim res
for i = lbound( a ) to ubound( a )
if isarray( a( i ) ) then
res = res & makeflat( a( i ) )
else
res = res & a( i ) & separator
end if
next
makeflat = res
end function
public function flatten( a )
dim res
res = makeflat( a )
res = left( res, len( res ) - len(separator))
res = split( res, separator )
flatten = res
end function
public property let itemSeparator( c )
separator = c
end property
end class

4
Task/Flatten-a-list/VBScript/flatten-a-list-2.vb
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dim flat
set flat = new flattener
flat.itemSeparator = "~"
wscript.echo join( flat.flatten( array( array( 1 ),2,array(array(3,4),5),array(array(array())),array(array(array(6))),7,8,array())), "!")

15
Task/Flatten-a-list/VBScript/flatten-a-list-3.vb
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' Flatten the example array...
a = FlattenArray(Array(Array(1), 2, Array(Array(3,4), 5), Array(Array(Array())), Array(Array(Array(6))), 7, 8, Array()))
' Print the list, comma-separated...
WScript.Echo Join(a, ",")
Function FlattenArray(a)
If IsArray(a) Then DoFlatten a, FlattenArray: FlattenArray = Split(Trim(FlattenArray))
End Function
Sub DoFlatten(a, s)
For i = 0 To UBound(a)
If IsArray(a(i)) Then DoFlatten a(i), s Else s = s & a(i) & " "
Next
End Sub