task_url stringlengths 30 116 | task_name stringlengths 2 86 | task_description stringlengths 0 14.4k | language_url stringlengths 2 53 | language_name stringlengths 1 52 | code stringlengths 0 61.9k |
|---|---|---|---|---|---|
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Pascal | Pascal | sub selection_sort
{my @a = @_;
foreach my $i (0 .. $#a - 1)
{my $min = $i + 1;
$a[$_] < $a[$min] and $min = $_ foreach $min .. $#a;
$a[$i] > $a[$min] and @a[$i, $min] = @a[$min, $i];}
return @a;} |
http://rosettacode.org/wiki/Soundex | Soundex | Soundex is an algorithm for creating indices for words based on their pronunciation.
Task
The goal is for homophones to be encoded to the same representation so that they can be matched despite minor differences in spelling (from the soundex Wikipedia article).
Caution
There is a major issue in many of the ... | #Prolog | Prolog | %____________________________________________________________________
% Implements the American soundex algorithm
% as described at https://en.wikipedia.org/wiki/Soundex
% In SWI Prolog, a 'string' is specified in 'single quotes',
% while a "list of codes" may be specified in "double quotes".
% So, "abc" is equi... |
http://rosettacode.org/wiki/Sorting_algorithms/Shell_sort | Sorting algorithms/Shell sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #zkl | zkl | // Shell sort a sequence of objects in place
// Requires mutiable list
fcn shellSort(sequence){
n := sequence.len();
gap := n / 2;
while (0 < gap){
i := gap;
while (i < n){
j := i - gap;
while ((j >= 0) and (sequence[j] > sequence[j + gap])){
sequence.swap(j,j + gap);
j -= gap... |
http://rosettacode.org/wiki/Stack | Stack |
Data Structure
This illustrates a data structure, a means of storing data within a program.
You may see other such structures in the Data Structures category.
A stack is a container of elements with last in, first out access policy. Sometimes it also called LIFO.
The stack is accessed through its top.
The ba... | #PicoLisp | PicoLisp | (push 'Stack 3)
(push 'Stack 2)
(push 'Stack 1) |
http://rosettacode.org/wiki/Spiral_matrix | Spiral matrix | Task
Produce a spiral array.
A spiral array is a square arrangement of the first N2 natural numbers, where the
numbers increase sequentially as you go around the edges of the array spiraling inwards.
For example, given 5, produce this array:
0 1 2 3 4
15 16 17 18 5
14 23 24 19 6
13 22 21 ... | #Sidef | Sidef | func spiral(n) {
var (x, y, dx, dy, a) = (0, 0, 1, 0, [])
{ |i|
a[y][x] = i
var (nx, ny) = (x+dx, y+dy)
( if (dx == 1 && (nx == n || a[ny][nx]!=nil)) { [ 0, 1] }
elsif (dy == 1 && (ny == n || a[ny][nx]!=nil)) { [-1, 0] }
elsif (dx == -1 && (nx < 0 || a[ny][nx]!=nil)... |
http://rosettacode.org/wiki/Sorting_algorithms/Quicksort | Sorting algorithms/Quicksort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #ERRE | ERRE |
PROGRAM QUICKSORT_DEMO
DIM ARRAY[21]
!$DYNAMIC
DIM QSTACK[0]
!$INCLUDE="PC.LIB"
PROCEDURE QSORT(ARRAY[],START,NUM)
FIRST=START ! initialize work variables
LAST=START+NUM-1
LOOP
REPEAT
TEMP=ARRAY[(LAST+FIRST) DIV 2] ! seek midpoint
I=FIRST
J=LAST
REPEAT ! re... |
http://rosettacode.org/wiki/Sorting_algorithms/Insertion_sort | Sorting algorithms/Insertion sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #ERRE | ERRE |
PROGRAM INSERTION_SORT
DIM A[9]
PROCEDURE INSERTION_SORT(A[])
LOCAL I,J
FOR I=0 TO UBOUND(A,1) DO
V=A[I]
J=I-1
WHILE J>=0 DO
IF A[J]>V THEN
A[J+1]=A[J]
J=J-1
ELSE
EXIT
END IF
END WHILE
A[J+1]=V
E... |
http://rosettacode.org/wiki/Sorting_algorithms/Heapsort | Sorting algorithms/Heapsort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #F.23 | F# | let inline swap (a: _ []) i j =
let temp = a.[i]
a.[i] <- a.[j]
a.[j] <- temp
let inline sift cmp (a: _ []) start count =
let rec loop root child =
if root * 2 + 1 < count then
let p = child < count - 1 && cmp a.[child] a.[child + 1] < 0
let child = if p then child + 1 else child
if cmp ... |
http://rosettacode.org/wiki/Sorting_algorithms/Merge_sort | Sorting algorithms/Merge sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Delphi | Delphi | def merge(var xs :List, var ys :List) {
var result := []
while (xs =~ [x] + xr && ys =~ [y] + yr) {
if (x <= y) {
result with= x
xs := xr
} else {
result with= y
ys := yr
}
}
return result + xs + ys
}
def sort(list :List) {
if... |
http://rosettacode.org/wiki/Sorting_algorithms/Pancake_sort | Sorting algorithms/Pancake sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Tailspin | Tailspin |
templates pancakeSort
@: {stack: $, flips: 0"1"};
sink flip
when <2..> do
@pancakeSort.stack(1..$): $@pancakeSort.stack($..1:-1)...;
'$@pancakeSort.stack;$#10;' -> !OUT::write
@pancakeSort.flips: $@pancakeSort.flips + 1;
end flip
sink fixTop
@: 1;
2..$ -> #
$ -> \(when <~=$@f... |
http://rosettacode.org/wiki/Sorting_algorithms/Pancake_sort | Sorting algorithms/Pancake sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Tcl | Tcl | package require Tcl 8.5
# Some simple helper procedures
proc flip {nlist n} {
concat [lreverse [lrange $nlist 0 $n]] [lrange $nlist $n+1 end]
}
proc findmax {nlist limit} {
lsearch -exact $nlist [tcl::mathfunc::max {*}[lrange $nlist 0 $limit]]
}
# Simple-minded pancake sort algorithm
proc pancakeSort {nlist {... |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Perl | Perl | sub selection_sort
{my @a = @_;
foreach my $i (0 .. $#a - 1)
{my $min = $i + 1;
$a[$_] < $a[$min] and $min = $_ foreach $min .. $#a;
$a[$i] > $a[$min] and @a[$i, $min] = @a[$min, $i];}
return @a;} |
http://rosettacode.org/wiki/Soundex | Soundex | Soundex is an algorithm for creating indices for words based on their pronunciation.
Task
The goal is for homophones to be encoded to the same representation so that they can be matched despite minor differences in spelling (from the soundex Wikipedia article).
Caution
There is a major issue in many of the ... | #PureBasic | PureBasic | Procedure.s getCode(c.s)
Protected getCode.s = ""
If FindString("BFPV", c ,1) : getCode = "1" : EndIf
If FindString("CGJKQSXZ", c ,1) : getCode = "2" : EndIf
If FindString("DT", c ,1) : getCode = "3" : EndIf
If "L" = c : getCode = "4" : EndIf
If FindString("MN"... |
http://rosettacode.org/wiki/Stack | Stack |
Data Structure
This illustrates a data structure, a means of storing data within a program.
You may see other such structures in the Data Structures category.
A stack is a container of elements with last in, first out access policy. Sometimes it also called LIFO.
The stack is accessed through its top.
The ba... | #Pike | Pike |
object s = ADT.Stack();
s->push("a");
s->push("b");
write("top: %O, pop1: %O, pop2: %O\n",
s->top(), s->pop(), s->pop());
s->reset(); // Empty the stack
|
http://rosettacode.org/wiki/Spiral_matrix | Spiral matrix | Task
Produce a spiral array.
A spiral array is a square arrangement of the first N2 natural numbers, where the
numbers increase sequentially as you go around the edges of the array spiraling inwards.
For example, given 5, produce this array:
0 1 2 3 4
15 16 17 18 5
14 23 24 19 6
13 22 21 ... | #Stata | Stata | function spiral_mat(n) {
a = J(n*n, 1, 1)
u = J(n, 1, -n)
v = J(n, 1, 1)
for (k=(i=n)-1; k>=1; i=i+2*k--) {
j = 1..k
a[j:+i] = u[j] = -u[j]
a[j:+(i+k)] = v[j] = -v[j]
}
return(rowshape(invorder(runningsum(a)),n):-1)
}
spiral_mat(5)
1 2 3 4 5
+--------------------------+
1 | 0 ... |
http://rosettacode.org/wiki/Sorting_algorithms/Quicksort | Sorting algorithms/Quicksort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #F.23 | F# |
let rec qsort = function
hd :: tl ->
let less, greater = List.partition ((>=) hd) tl
List.concat [qsort less; [hd]; qsort greater]
| _ -> []
|
http://rosettacode.org/wiki/Sorting_algorithms/Insertion_sort | Sorting algorithms/Insertion sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Euphoria | Euphoria | function insertion_sort(sequence s)
object temp
integer j
for i = 2 to length(s) do
temp = s[i]
j = i-1
while j >= 1 and compare(s[j],temp) > 0 do
s[j+1] = s[j]
j -= 1
end while
s[j+1] = temp
end for
return s
end function
include misc... |
http://rosettacode.org/wiki/Sorting_algorithms/Heapsort | Sorting algorithms/Heapsort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Forth | Forth | create example
70 , 61 , 63 , 37 , 63 , 25 , 46 , 92 , 38 , 87 ,
[UNDEFINED] r'@ [IF]
: r'@ r> r> r@ swap >r swap >r ;
[THEN]
defer precedes ( n1 n2 a -- f)
defer exchange ( n1 n2 a --)
: siftDown ( a e s -- a e s)
swap >r swap >r dup... |
http://rosettacode.org/wiki/Sorting_algorithms/Merge_sort | Sorting algorithms/Merge sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #E | E | def merge(var xs :List, var ys :List) {
var result := []
while (xs =~ [x] + xr && ys =~ [y] + yr) {
if (x <= y) {
result with= x
xs := xr
} else {
result with= y
ys := yr
}
}
return result + xs + ys
}
def sort(list :List) {
if... |
http://rosettacode.org/wiki/Sorting_algorithms/Pancake_sort | Sorting algorithms/Pancake sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Transd | Transd |
#lang transd
MainModule: {
vint: [ 9, 0, 5, 10, 3, -3, -1, 8, -7, -4, -2, -6, 2, 4, 6, -10, 7, -8, -5, 1, -9],
_start: (λ (with n (- (size vint) 1) m 0
(textout vint "\n")
(while n
(= m (max-element-idx vint Range(0 (+ n 1))))
(if (neq m n)
(if m (re... |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Phix | Phix | with javascript_semantics
function selection_sort(sequence s)
for i=1 to length(s) do
integer m = i
object si = s[i],
sm = s[m]
for j=i+1 to length(s) do
object sj = s[j]
if sj<sm then
{sm,m} = {sj,j}
end if
end for
... |
http://rosettacode.org/wiki/Soundex | Soundex | Soundex is an algorithm for creating indices for words based on their pronunciation.
Task
The goal is for homophones to be encoded to the same representation so that they can be matched despite minor differences in spelling (from the soundex Wikipedia article).
Caution
There is a major issue in many of the ... | #Python | Python | from itertools import groupby
def soundex(word):
codes = ("bfpv","cgjkqsxz", "dt", "l", "mn", "r")
soundDict = dict((ch, str(ix+1)) for ix,cod in enumerate(codes) for ch in cod)
cmap2 = lambda kar: soundDict.get(kar, '9')
sdx = ''.join(cmap2(kar) for kar in word.lower())
sdx2 = word[0].upper() + ''.jo... |
http://rosettacode.org/wiki/Stack | Stack |
Data Structure
This illustrates a data structure, a means of storing data within a program.
You may see other such structures in the Data Structures category.
A stack is a container of elements with last in, first out access policy. Sometimes it also called LIFO.
The stack is accessed through its top.
The ba... | #PL.2FI | PL/I | /* Any controlled variable may behave as a stack. */
declare s float controlled;
/* to push a value on the stack. */
allocate s;
s = 10;
/* To pop a value from the stack. */
put (s);
free s;
/* to peek at the top of stack> */
put (s);
/* To see whether the stack is empty */
if allocation(s) = 0 then ...
/* ... |
http://rosettacode.org/wiki/Spiral_matrix | Spiral matrix | Task
Produce a spiral array.
A spiral array is a square arrangement of the first N2 natural numbers, where the
numbers increase sequentially as you go around the edges of the array spiraling inwards.
For example, given 5, produce this array:
0 1 2 3 4
15 16 17 18 5
14 23 24 19 6
13 22 21 ... | #Tcl | Tcl | package require Tcl 8.5
namespace path {::tcl::mathop}
proc spiral size {
set m [lrepeat $size [lrepeat $size .]]
set x 0; set dx 0
set y -1; set dy 1
set i -1
while {$i < $size ** 2 - 1} {
if {$dy == 0} {
incr x $dx
if {0 <= $x && $x < $size && [lindex $m $x $y] eq "... |
http://rosettacode.org/wiki/Sorting_algorithms/Quicksort | Sorting algorithms/Quicksort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Factor | Factor | : qsort ( seq -- seq )
dup empty? [
unclip [ [ < ] curry partition [ qsort ] bi@ ] keep
prefix append
] unless ; |
http://rosettacode.org/wiki/Sorting_algorithms/Insertion_sort | Sorting algorithms/Insertion sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #F.23 | F# |
// This function performs an insertion sort with an array.
// The input parameter is a generic array (any type that can perform comparison).
// As is typical of functional programming style the input array is not modified;
// a copy of the input array is made and modified and returned.
let insertionSort (A: _ array) ... |
http://rosettacode.org/wiki/Sorting_algorithms/Heapsort | Sorting algorithms/Heapsort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Fortran | Fortran | program Heapsort_Demo
implicit none
integer, parameter :: num = 20
real :: array(num)
call random_seed
call random_number(array)
write(*,*) "Unsorted array:-"
write(*,*) array
write(*,*)
call heapsort(array)
write(*,*) "Sorted array:-"
write(*,*) array
contains
subroutine heapsort(a)
... |
http://rosettacode.org/wiki/Sorting_algorithms/Merge_sort | Sorting algorithms/Merge sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #EasyLang | EasyLang | subr merge
mid = left + sz
if mid > sz_data
mid = sz_data
.
right = mid + sz
if right > sz_data
right = sz_data
.
l = left
r = mid
for i = left to right - 1
if r = right or l < mid and tmp[l] < tmp[r]
data[i] = tmp[l]
l += 1
else
data[i] = tmp[r]
r += 1
.
... |
http://rosettacode.org/wiki/Sorting_algorithms/Pancake_sort | Sorting algorithms/Pancake sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #uBasic.2F4tH | uBasic/4tH | PRINT "Pancake sort:"
n = FUNC (_InitArray)
PROC _ShowArray (n)
PROC _Pancakesort (n)
PROC _ShowArray (n)
PRINT
END
_Flip PARAM(1)
LOCAL(1)
b@ = 0
DO WHILE b@ < a@
PROC _Swap (b@, a@)
b@ = b@ + 1
a@ = a@ - 1
LOOP
RETURN
_Pancakesort PARAM (1) ' Pancakesort
LOC... |
http://rosettacode.org/wiki/Sorting_algorithms/Pancake_sort | Sorting algorithms/Pancake sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #UNIX_Shell | UNIX Shell | #!/usr/bin/env bash
main() {
local stack
local -i n m i
if (( $# )); then
stack=("$@")
else
stack=($(printf '%s\n' {0..9} | shuf))
fi
print_stack 0 "${stack[@]}"
# start by looking at whole stack
(( n = ${#stack[@]} ))
# keep going until we're all sorted
while (( n > 0 )); do
# shr... |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #PHP | PHP | function selection_sort(&$arr) {
$n = count($arr);
for($i = 0; $i < count($arr); $i++) {
$min = $i;
for($j = $i + 1; $j < $n; $j++){
if($arr[$j] < $arr[$min]){
$min = $j;
}
}
list($arr[$i],$arr[$min]) = array($arr[$min],$arr[$i]);
}
} |
http://rosettacode.org/wiki/Soundex | Soundex | Soundex is an algorithm for creating indices for words based on their pronunciation.
Task
The goal is for homophones to be encoded to the same representation so that they can be matched despite minor differences in spelling (from the soundex Wikipedia article).
Caution
There is a major issue in many of the ... | #Racket | Racket | sub soundex ($name --> Str) {
my $first = substr($name,0,1).uc;
gather {
take $first;
my $fakefirst = '';
$fakefirst = "de " if $first ~~ /^ <[AEIOUWH]> /;
"$fakefirst$name".lc.trans('wh' => '') ~~ /
^
[
[
| <[ bfpv ]>+ ... |
http://rosettacode.org/wiki/Stack | Stack |
Data Structure
This illustrates a data structure, a means of storing data within a program.
You may see other such structures in the Data Structures category.
A stack is a container of elements with last in, first out access policy. Sometimes it also called LIFO.
The stack is accessed through its top.
The ba... | #PostScript | PostScript | % empty? is already defined.
/push {exch cons}.
/pop {uncons exch pop}.
[2 3 4 5 6] 1 push
= [1 2 3 4 5 6]
[1 2 3 4 5 6] pop
=[2 3 4 5 6]
[2 3 4 5 6] empty?
=false
[] empty?
=true |
http://rosettacode.org/wiki/Spiral_matrix | Spiral matrix | Task
Produce a spiral array.
A spiral array is a square arrangement of the first N2 natural numbers, where the
numbers increase sequentially as you go around the edges of the array spiraling inwards.
For example, given 5, produce this array:
0 1 2 3 4
15 16 17 18 5
14 23 24 19 6
13 22 21 ... | #TI-83_BASIC | TI-83 BASIC | 5->N
DelVar [F]
{N,N}→dim([F])
1→A: N→B
1→C: N→D
0→E: E→G
1→I: 1→J
For(K,1,N*N)
K-1→[F](I,J)
If E=0: Then
If J<D: Then
J+1→J
Else: 1→G
I+1→I: A+1→A
End
End
If E=1: Then
If I<B: Then
I+1→I
Else: 2→G
J-1→J: D-1→D
End
End
If E=2: Then
If J>C: Then
J-1→J
Else: 3→G
I-1→I: B-1→B
End
End
If E=3: Then
If I>A: Then
I-1→I
E... |
http://rosettacode.org/wiki/Sorting_algorithms/Quicksort | Sorting algorithms/Quicksort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Fexl | Fexl | # (sort xs) is the ordered list of all elements in list xs.
# This version preserves duplicates.
\sort==
(\xs
xs [] \x\xs
append (sort; filter (gt x) xs); # all the items less than x
cons x; append (filter (eq x) xs); # all the items equal to x
sort; filter (lt x) xs # all the items g... |
http://rosettacode.org/wiki/Sorting_algorithms/Insertion_sort | Sorting algorithms/Insertion sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Factor | Factor | USING: kernel prettyprint sorting.extras sequences ;
: insertion-sort ( seq -- sorted-seq )
<reversed> V{ } clone [ swap insort-left! ] reduce ;
{ 6 8 5 9 3 2 1 4 7 } insertion-sort . |
http://rosettacode.org/wiki/Sorting_algorithms/Heapsort | Sorting algorithms/Heapsort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #FreeBASIC | FreeBASIC | ' version 22-10-2016
' compile with: fbc -s console
' for boundary checks on array's compile with: fbc -s console -exx
' sort from lower bound to the higher bound
' array's can have subscript range from -2147483648 to +2147483647
Sub siftdown(hs() As Long, start As ULong, end_ As ULong)
Dim As ULong root = star... |
http://rosettacode.org/wiki/Sorting_algorithms/Merge_sort | Sorting algorithms/Merge sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Eiffel | Eiffel |
class
MERGE_SORT [G -> COMPARABLE]
create
sort
feature
sort (ar: ARRAY [G])
-- Sorted array in ascending order.
require
ar_not_empty: not ar.is_empty
do
create sorted_array.make_empty
mergesort (ar, 1, ar.count)
sorted_array := ar
ensure
sorted_array_not_empty: not sorted_array.is_emp... |
http://rosettacode.org/wiki/Sorting_algorithms/Pancake_sort | Sorting algorithms/Pancake sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #VBA | VBA |
'pancake sort
'uses two auxiliary routines "printarray" and "flip"
Public Sub printarray(A)
For i = LBound(A) To UBound(A)
Debug.Print A(i),
Next
Debug.Print
End Sub
Public Sub Flip(ByRef A, p1, p2, trace)
'flip first elements of A (p1 to p2)
If trace Then Debug.Print "we'll flip the first "; p2 - p1 ... |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #PicoLisp | PicoLisp | (de selectionSort (Lst)
(map
'((L) (and (cdr L) (xchg L (member (apply min @) L))))
Lst )
Lst ) |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #PL.2FI | PL/I |
Selection: procedure options (main); /* 2 November 2013 */
declare a(10) fixed binary initial (
5, 7, 3, 98, 4, -3, 25, 20, 60, 17);
put edit (trim(a)) (a, x(1));
call Selection_Sort (a);
put skip edit (trim(a)) (a, x(1));
Selection_sort: procedure (a);
declare a(*) fixed binary... |
http://rosettacode.org/wiki/Soundex | Soundex | Soundex is an algorithm for creating indices for words based on their pronunciation.
Task
The goal is for homophones to be encoded to the same representation so that they can be matched despite minor differences in spelling (from the soundex Wikipedia article).
Caution
There is a major issue in many of the ... | #Raku | Raku | sub soundex ($name --> Str) {
my $first = substr($name,0,1).uc;
gather {
take $first;
my $fakefirst = '';
$fakefirst = "de " if $first ~~ /^ <[AEIOUWH]> /;
"$fakefirst$name".lc.trans('wh' => '') ~~ /
^
[
[
| <[ bfpv ]>+ ... |
http://rosettacode.org/wiki/Stack | Stack |
Data Structure
This illustrates a data structure, a means of storing data within a program.
You may see other such structures in the Data Structures category.
A stack is a container of elements with last in, first out access policy. Sometimes it also called LIFO.
The stack is accessed through its top.
The ba... | #PowerShell | PowerShell |
$stack = New-Object -TypeName System.Collections.Stack
# or
$stack = [System.Collections.Stack] @()
|
http://rosettacode.org/wiki/Spiral_matrix | Spiral matrix | Task
Produce a spiral array.
A spiral array is a square arrangement of the first N2 natural numbers, where the
numbers increase sequentially as you go around the edges of the array spiraling inwards.
For example, given 5, produce this array:
0 1 2 3 4
15 16 17 18 5
14 23 24 19 6
13 22 21 ... | #TSE_SAL | TSE SAL |
// library: math: create: array: spiral: inwards <description></description> <version control></version control> <version>1.0.0.0.15</version> (filenamemacro=creamasi.s) [<Program>] [<Research>] [kn, ri, mo, 31-12-2012 01:15:43]
PROC PROCMathCreateArraySpiralInwards( INTEGER nI )
// e.g. PROC Main()
// e.g. STRIN... |
http://rosettacode.org/wiki/Sorting_algorithms/Quicksort | Sorting algorithms/Quicksort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Forth | Forth | : mid ( l r -- mid ) over - 2/ -cell and + ;
: exch ( addr1 addr2 -- ) dup @ >r over @ swap ! r> swap ! ;
: partition ( l r -- l r r2 l2 )
2dup mid @ >r ( r: pivot )
2dup begin
swap begin dup @ r@ < while cell+ repeat
swap begin r@ over @ < while cell- repeat
2dup <= if 2dup exch >r cell+ r> cell- ... |
http://rosettacode.org/wiki/Sorting_algorithms/Insertion_sort | Sorting algorithms/Insertion sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Forth | Forth | : insert ( start end -- start )
dup @ >r ( r: v ) \ v = a[i]
begin
2dup < \ j>0
while
r@ over cell- @ < \ a[j-1] > v
while
cell- \ j--
dup @ over cell+ ! \ a[j] = a[j-1]
repeat then
r> swap ! ; \ a[j] = v
: sort ( array len -- )
1 ?do dup i cells + insert loop drop ;
create test... |
http://rosettacode.org/wiki/Sorting_algorithms/Heapsort | Sorting algorithms/Heapsort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #FunL | FunL | def heapSort( a ) =
heapify( a )
end = a.length() - 1
while end > 0
a(end), a(0) = a(0), a(end)
siftDown( a, 0, --end )
def heapify( a ) =
for i <- (a.length() - 2)\2..0 by -1
siftDown( a, i, a.length() - 1 )
def siftDown( a, start, end ) =
root = start
while root*2 + 1 <= end
child ... |
http://rosettacode.org/wiki/Sorting_algorithms/Heapsort | Sorting algorithms/Heapsort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Go | Go | package main
import (
"sort"
"container/heap"
"fmt"
)
type HeapHelper struct {
container sort.Interface
length int
}
func (self HeapHelper) Len() int { return self.length }
// We want a max-heap, hence reverse the comparison
func (self HeapHelper) Less(i, j int) bool { return self.container.Less(... |
http://rosettacode.org/wiki/Sorting_algorithms/Merge_sort | Sorting algorithms/Merge sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Elixir | Elixir | defmodule Sort do
def merge_sort(list) when length(list) <= 1, do: list
def merge_sort(list) do
{left, right} = Enum.split(list, div(length(list), 2))
:lists.merge( merge_sort(left), merge_sort(right))
end
end |
http://rosettacode.org/wiki/Sorting_algorithms/Pancake_sort | Sorting algorithms/Pancake sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Wren | Wren | import "/sort" for Find
class Pancake {
construct new(a) {
_a = a.toList
}
flip(r) {
for (l in 0...r) {
_a.swap(r, l)
r = r - 1
}
}
sort() {
for (uns in _a.count-1..1) {
var h = Find.highest(_a[0..uns])
var lx = h[... |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #PowerShell | PowerShell | Function SelectionSort( [Array] $data )
{
$datal=$data.length-1
0..( $datal - 1 ) | ForEach-Object {
$min = $data[ $_ ]
$mini = $_
( $_ + 1 )..$datal | ForEach-Object {
if( $data[ $_ ] -lt $min ) {
$min = $data[ $_ ]
$mini = $_
}
}
$temp = $data[ $_ ]
$data[ $_ ] = $min
$data[ $mini ] = $t... |
http://rosettacode.org/wiki/Soundex | Soundex | Soundex is an algorithm for creating indices for words based on their pronunciation.
Task
The goal is for homophones to be encoded to the same representation so that they can be matched despite minor differences in spelling (from the soundex Wikipedia article).
Caution
There is a major issue in many of the ... | #REXX | REXX | /*REXX program demonstrates Soundex codes from some words or from the command line.*/
_=; @.= /*set a couple of vars to "null".*/
parse arg @.0 . /*allow input from command line. */
@.1 = "12346" ; ... |
http://rosettacode.org/wiki/Stack | Stack |
Data Structure
This illustrates a data structure, a means of storing data within a program.
You may see other such structures in the Data Structures category.
A stack is a container of elements with last in, first out access policy. Sometimes it also called LIFO.
The stack is accessed through its top.
The ba... | #Prolog | Prolog | % push( ELEMENT, STACK, NEW )
% True if NEW is [ELEMENT|STACK]
push(ELEMENT,STACK,[ELEMENT|STACK]).
% pop( STACK, TOP, NEW )
% True if TOP and NEW are head and tail, respectively, of STACK
pop([TOP|STACK],TOP,STACK).
% empty( STACK )
% True if STACK is empty
empty([]). |
http://rosettacode.org/wiki/Spiral_matrix | Spiral matrix | Task
Produce a spiral array.
A spiral array is a square arrangement of the first N2 natural numbers, where the
numbers increase sequentially as you go around the edges of the array spiraling inwards.
For example, given 5, produce this array:
0 1 2 3 4
15 16 17 18 5
14 23 24 19 6
13 22 21 ... | #uBasic.2F4tH | uBasic/4tH | Input "Width: ";w
Input "Height: ";h
Print
For i = 0 To h-1
For j = 0 To w-1
Print Using "__#"; FUNC(_Spiral(w,h,j,i));
Next
Print
Next
End
_Spiral Param(4)
If d@ Then
Return (a@ + FUNC(_Spiral(b@-1, a@, d@ - 1, a@ - c@ - 1)))
Else
Return (c@)
EndIf |
http://rosettacode.org/wiki/Sorting_algorithms/Quicksort | Sorting algorithms/Quicksort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Fortran | Fortran | MODULE qsort_mod
IMPLICIT NONE
TYPE group
INTEGER :: order ! original order of unsorted data
REAL :: VALUE ! values to be sorted by
END TYPE group
CONTAINS
RECURSIVE SUBROUTINE QSort(a,na)
! DUMMY ARGUMENTS
INTEGER, INTENT(in) :: nA
TYPE (group), DIMENSION(nA), INTENT(in... |
http://rosettacode.org/wiki/Sorting_algorithms/Insertion_sort | Sorting algorithms/Insertion sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Fortran | Fortran | subroutine sort(n, a)
implicit none
integer :: n, i, j
real :: a(n), x
do i = 2, n
x = a(i)
j = i - 1
do while (j >= 1)
if (a(j) <= x) exit
a(j + 1) = a(j)
j = j - 1
end do
a(j + 1) = x
end do
end subroutine |
http://rosettacode.org/wiki/Sorting_algorithms/Heapsort | Sorting algorithms/Heapsort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Groovy | Groovy | def makeSwap = { a, i, j = i+1 -> print "."; a[[j,i]] = a[[i,j]] }
def checkSwap = { list, i, j = i+1 -> [(list[i] > list[j])].find{ it }.each { makeSwap(list, i, j) } }
def siftDown = { a, start, end ->
def p = start
while (p*2 < end) {
def c = p*2 + ((p*2 + 1 < end && a[p*2 + 2] > a[p*2 + 1]) ? ... |
http://rosettacode.org/wiki/Sorting_algorithms/Merge_sort | Sorting algorithms/Merge sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Erlang | Erlang | mergeSort(L) when length(L) == 1 -> L;
mergeSort(L) when length(L) > 1 ->
{L1, L2} = lists:split(length(L) div 2, L),
lists:merge(mergeSort(L1), mergeSort(L2)). |
http://rosettacode.org/wiki/Sorting_algorithms/Pancake_sort | Sorting algorithms/Pancake sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #zkl | zkl | fcn pancakeSort(a){
foreach i in ([a.len()-1..1,-1]){
j := a.index((0).max(a[0,i+1])); // min for decending sort
if(i != j){ a.swap(0,j); a.swap(0,i); }
}
a
} |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Prolog | Prolog |
selection_sort([], []).
selection_sort([H | L], [H1 | L2]) :-
exchange(H, L, H1, L1),
selection_sort(L1, L2).
exchange(H, [], H, []).
exchange(H, L, H1, L1) :-
min_list(L, H2),
( H < H2
-> H1 = H, L1 = L
; H1 = H2,
% does the exchange of the number H
% and the min of the list
nth0(Ind... |
http://rosettacode.org/wiki/Soundex | Soundex | Soundex is an algorithm for creating indices for words based on their pronunciation.
Task
The goal is for homophones to be encoded to the same representation so that they can be matched despite minor differences in spelling (from the soundex Wikipedia article).
Caution
There is a major issue in many of the ... | #Ring | Ring |
# Project: Soundex
name = ["Ashcraf", "Ashcroft", "Gauss", "Ghosh", "Hilbert", "Heilbronn", "Lee", "Lloyd",
"Moses", "Pfister", "Robert", "Rupert", "Rubin","Tymczak", "Soundex", "Example"]
for i = 1 to 16
sp = 10 - len(name[i])
see '"' + name[i] + '"' + copy(" ", sp) + " " + soundex(name[i])... |
http://rosettacode.org/wiki/Stack | Stack |
Data Structure
This illustrates a data structure, a means of storing data within a program.
You may see other such structures in the Data Structures category.
A stack is a container of elements with last in, first out access policy. Sometimes it also called LIFO.
The stack is accessed through its top.
The ba... | #PureBasic | PureBasic | Global NewList MyStack()
Procedure Push_LIFO(n)
FirstElement(MyStack())
InsertElement(MyStack())
MyStack() = n
EndProcedure
Procedure Pop_LIFO()
If FirstElement(MyStack())
Topmost = MyStack()
DeleteElement(MyStack())
EndIf
ProcedureReturn Topmost
EndProcedure
Procedure Empty_LIFO()
Protected... |
http://rosettacode.org/wiki/Spiral_matrix | Spiral matrix | Task
Produce a spiral array.
A spiral array is a square arrangement of the first N2 natural numbers, where the
numbers increase sequentially as you go around the edges of the array spiraling inwards.
For example, given 5, produce this array:
0 1 2 3 4
15 16 17 18 5
14 23 24 19 6
13 22 21 ... | #Ursala | Ursala | #import std
#import nat
#import int
spiral =
^H/block nleq-<lS&r+ -+
num@NiC+ sum:-0*yK33x+ (|\LL negation**)+ rlc ~&lh==1,
~&rNNXNXSPlrDlSPK32^lrtxiiNCCSLhiC5D/~& iota*+ iota+-
#cast %nLLL
examples = spiral* <5,6,7> |
http://rosettacode.org/wiki/Sorting_algorithms/Quicksort | Sorting algorithms/Quicksort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #FreeBASIC | FreeBASIC | ' version 23-10-2016
' compile with: fbc -s console
' sort from lower bound to the highter bound
' array's can have subscript range from -2147483648 to +2147483647
Sub quicksort(qs() As Long, l As Long, r As Long)
Dim As ULong size = r - l +1
If size < 2 Then Exit Sub
Dim As Long i = l, j = r
Di... |
http://rosettacode.org/wiki/Sorting_algorithms/Insertion_sort | Sorting algorithms/Insertion sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #FreeBASIC | FreeBASIC | ' version 20-10-2016
' compile with: fbc -s console
' for boundry checks on array's compile with: fbc -s console -exx
Sub insertionSort( arr() As Long )
' sort from lower bound to the highter bound
' array's can have subscript range from -2147483648 to +2147483647
Dim As Long lb = LBound(arr)
Dim As Long ... |
http://rosettacode.org/wiki/Sorting_algorithms/Heapsort | Sorting algorithms/Heapsort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Haskell | Haskell | import Data.Graph.Inductive.Internal.Heap(
Heap(..),insert,findMin,deleteMin)
-- heapsort is added in this module as an example application
build :: Ord a => [(a,b)] -> Heap a b
build = foldr insert Empty
toList :: Ord a => Heap a b -> [(a,b)]
toList Empty = []
toList h = x:toList r
where (x,r) = (fi... |
http://rosettacode.org/wiki/Sorting_algorithms/Merge_sort | Sorting algorithms/Merge sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #ERRE | ERRE |
PROGRAM MERGESORT_DEMO
! Example of merge sort usage.
CONST SIZE%=100,S1%=50
DIM DTA%[SIZE%],FH%[S1%],STACK%[20,2]
PROCEDURE MERGE(START%,MIDDLE%,ENDS%)
LOCAL FHSIZE%
FHSIZE%=MIDDLE%-START%+1
FOR I%=0 TO FHSIZE%-1 DO
FH%[I%]=DTA%[START%+I%]
END FOR
I%=0
J%=MIDDLE%+1
K%=START%
RE... |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #PureBasic | PureBasic | Procedure selectionSort(Array a(1))
Protected i, j, lastIndex, minIndex
lastIndex = ArraySize(a())
For i = 0 To lastIndex - 1
minIndex = i
For j = i + 1 To lastIndex
If a(minIndex) > a(j)
minIndex = j
EndIf
Next
Swap a(minIndex), a(i)
Next
EndProcedure |
http://rosettacode.org/wiki/Soundex | Soundex | Soundex is an algorithm for creating indices for words based on their pronunciation.
Task
The goal is for homophones to be encoded to the same representation so that they can be matched despite minor differences in spelling (from the soundex Wikipedia article).
Caution
There is a major issue in many of the ... | #Ruby | Ruby | class String
SoundexChars = 'BFPVCGJKQSXZDTLMNR'
SoundexNums = '111122222222334556'
SoundexCharsEx = '^' + SoundexChars
SoundexCharsDel = '^A-Z'
# desc: http://en.wikipedia.org/wiki/Soundex
def soundex(census = true)
str = self.upcase.delete(SoundexCharsDel)
str[0,1] + str[1..-1].delete(Soundex... |
http://rosettacode.org/wiki/Stack | Stack |
Data Structure
This illustrates a data structure, a means of storing data within a program.
You may see other such structures in the Data Structures category.
A stack is a container of elements with last in, first out access policy. Sometimes it also called LIFO.
The stack is accessed through its top.
The ba... | #Python | Python | from collections import deque
stack = deque()
stack.append(value) # pushing
value = stack.pop()
not stack # is empty? |
http://rosettacode.org/wiki/Spiral_matrix | Spiral matrix | Task
Produce a spiral array.
A spiral array is a square arrangement of the first N2 natural numbers, where the
numbers increase sequentially as you go around the edges of the array spiraling inwards.
For example, given 5, produce this array:
0 1 2 3 4
15 16 17 18 5
14 23 24 19 6
13 22 21 ... | #VBScript | VBScript |
Function build_spiral(n)
botcol = 0 : topcol = n - 1
botrow = 0 : toprow = n - 1
'declare a two dimensional array
Dim matrix()
ReDim matrix(topcol,toprow)
dir = 0 : col = 0 : row = 0
'populate the array
For i = 0 To n*n-1
matrix(col,row) = i
Select Case dir
Case 0
If col < topcol Then
col = co... |
http://rosettacode.org/wiki/Sorting_algorithms/Quicksort | Sorting algorithms/Quicksort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #FunL | FunL | def
qsort( [] ) = []
qsort( p:xs ) = qsort( xs.filter((< p)) ) + [p] + qsort( xs.filter((>= p)) ) |
http://rosettacode.org/wiki/Sorting_algorithms/Insertion_sort | Sorting algorithms/Insertion sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #GAP | GAP | InsertionSort := function(L)
local n, i, j, x;
n := Length(L);
for i in [ 2 .. n ] do
x := L[i];
j := i - 1;
while j >= 1 and L[j] > x do
L[j + 1] := L[j];
j := j - 1;
od;
L[j + 1] := x;
od;
end;
s := "BFKRIMPOQACNESWUTXDGLVZHYJ";
InsertionSort(s);
s;
# "ABCDEFGHIJKLMNOPQRSTUV... |
http://rosettacode.org/wiki/Sorting_algorithms/Heapsort | Sorting algorithms/Heapsort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Haxe | Haxe | class HeapSort {
@:generic
private static function siftDown<T>(arr: Array<T>, start:Int, end:Int) {
var root = start;
while (root * 2 + 1 <= end) {
var child = root * 2 + 1;
if (child + 1 <= end && Reflect.compare(arr[child], arr[child + 1]) < 0)
child++;
if (Reflect.compare(arr[ro... |
http://rosettacode.org/wiki/Sorting_algorithms/Merge_sort | Sorting algorithms/Merge sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Euphoria | Euphoria | function merge(sequence left, sequence right)
sequence result
result = {}
while length(left) > 0 and length(right) > 0 do
if compare(left[1], right[1]) <= 0 then
result = append(result, left[1])
left = left[2..$]
else
result = append(result, right[1])
... |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Python | Python | def selection_sort(lst):
for i, e in enumerate(lst):
mn = min(range(i,len(lst)), key=lst.__getitem__)
lst[i], lst[mn] = lst[mn], e
return lst |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Qi | Qi | (define select-r
Small [] Output -> [Small | (selection-sort Output)]
Small [X|Xs] Output -> (select-r X Xs [Small|Output]) where (< X Small)
Small [X|Xs] Output -> (select-r Small Xs [X|Output]))
(define selection-sort
[] -> []
[First|Lst] -> (select-r First Lst []))
(selection-sort [8 7 4 3... |
http://rosettacode.org/wiki/Soundex | Soundex | Soundex is an algorithm for creating indices for words based on their pronunciation.
Task
The goal is for homophones to be encoded to the same representation so that they can be matched despite minor differences in spelling (from the soundex Wikipedia article).
Caution
There is a major issue in many of the ... | #Run_BASIC | Run BASIC | global val$
val$(1) = "BPFV"
val$(2) = "CSGJKQXZ"
val$(3) = "DT"
val$(4) = "L"
val$(5) = "MN"
val$(6) = "R"
' ---------------------------------
' show soundex on these words
' ---------------------------------
w$(1) = "Robert" 'R163
w$(2) = "Rupert" 'R163
w$(3) = "Rubin" 'R150
w$(4) = "moses" 'M... |
http://rosettacode.org/wiki/Stack | Stack |
Data Structure
This illustrates a data structure, a means of storing data within a program.
You may see other such structures in the Data Structures category.
A stack is a container of elements with last in, first out access policy. Sometimes it also called LIFO.
The stack is accessed through its top.
The ba... | #Quackery | Quackery | [ size 1 = ] is isempty ( s --> b )
[ stack ] is mystack ( --> s )
mystack isempty if [ say "mystack is empty" cr cr ]
23 mystack put
mystack share echo say " is on the top of mystack" cr cr
mystack mystack put ( you can put anything on an ancillary stack, even itself! )
mystack share echo say " is on ... |
http://rosettacode.org/wiki/Spiral_matrix | Spiral matrix | Task
Produce a spiral array.
A spiral array is a square arrangement of the first N2 natural numbers, where the
numbers increase sequentially as you go around the edges of the array spiraling inwards.
For example, given 5, produce this array:
0 1 2 3 4
15 16 17 18 5
14 23 24 19 6
13 22 21 ... | #Visual_Basic | Visual Basic | Option Explicit
Sub Main()
print2dArray getSpiralArray(5)
End Sub
Function getSpiralArray(dimension As Integer) As Integer()
ReDim spiralArray(dimension - 1, dimension - 1) As Integer
Dim numConcentricSquares As Integer
numConcentricSquares = dimension \ 2
If (dimension Mod 2) Then numConcentr... |
http://rosettacode.org/wiki/Sorting_algorithms/Quicksort | Sorting algorithms/Quicksort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Go | Go | package main
import "fmt"
func main() {
list := []int{31, 41, 59, 26, 53, 58, 97, 93, 23, 84}
fmt.Println("unsorted:", list)
quicksort(list)
fmt.Println("sorted! ", list)
}
func quicksort(a []int) {
var pex func(int, int)
pex = func(lower, upper int) {
for {
switch u... |
http://rosettacode.org/wiki/Sorting_algorithms/Insertion_sort | Sorting algorithms/Insertion sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Go | Go | package main
import "fmt"
func insertionSort(a []int) {
for i := 1; i < len(a); i++ {
value := a[i]
j := i - 1
for j >= 0 && a[j] > value {
a[j+1] = a[j]
j = j - 1
}
a[j+1] = value
}
}
func main() {
list := []int{31, 41, 59, 26, 53, 58, 9... |
http://rosettacode.org/wiki/Sorting_algorithms/Heapsort | Sorting algorithms/Heapsort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Icon_and_Unicon | Icon and Unicon | procedure main() #: demonstrate various ways to sort a list and string
demosort(heapsort,[3, 14, 1, 5, 9, 2, 6, 3],"qwerty")
end
procedure heapsort(X,op) #: return sorted list ascending(or descending)
local head,tail
op := sortop(op,X) ... |
http://rosettacode.org/wiki/Sorting_algorithms/Merge_sort | Sorting algorithms/Merge sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #F.23 | F# | let split list =
let rec aux l acc1 acc2 =
match l with
| [] -> (acc1,acc2)
| [x] -> (x::acc1,acc2)
| x::y::tail ->
aux tail (x::acc1) (y::acc2)
in aux list [] []
let rec merge l1 l2 =
match (l1,l2) with
| (x,[]) -> x
| ([],y) -> ... |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Quackery | Quackery | [ 0 swap
behead swap
witheach
[ 2dup > iff
[ nip nip
i^ 1+ swap ]
else drop ]
drop ] is least ( [ --> n )
[ [] swap
dup size times
[ dup least pluck
swap dip join ]
drop ] is ssort ( [ --> [ )
[] 20 times [ 10... |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #R | R | selectionsort.loop <- function(x)
{
lenx <- length(x)
for(i in seq_along(x))
{
mini <- (i - 1) + which.min(x[i:lenx])
start_ <- seq_len(i-1)
x <- c(x[start_], x[mini], x[-c(start_, mini)])
}
x
} |
http://rosettacode.org/wiki/Soundex | Soundex | Soundex is an algorithm for creating indices for words based on their pronunciation.
Task
The goal is for homophones to be encoded to the same representation so that they can be matched despite minor differences in spelling (from the soundex Wikipedia article).
Caution
There is a major issue in many of the ... | #Scala | Scala | def soundex(s:String)={
var code=s.head.toUpper.toString
var previous=getCode(code.head)
for(ch <- s.drop(1); current=getCode(ch.toUpper)){
if (!current.isEmpty && current!=previous)
code+=current
previous=current
}
code+="0000"
code.slice(0,4)
}
def getCode(c:Char)={
val cod... |
http://rosettacode.org/wiki/Stack | Stack |
Data Structure
This illustrates a data structure, a means of storing data within a program.
You may see other such structures in the Data Structures category.
A stack is a container of elements with last in, first out access policy. Sometimes it also called LIFO.
The stack is accessed through its top.
The ba... | #R | R | library(proto)
stack <- proto(expr = {
l <- list()
empty <- function(.) length(.$l) == 0
push <- function(., x)
{
.$l <- c(list(x), .$l)
print(.$l)
invisible()
}
pop <- function(.)
{
if(.$empty()) stop("can't pop from an empty list")
.$l[[1]] <- NULL
print(.$... |
http://rosettacode.org/wiki/Spiral_matrix | Spiral matrix | Task
Produce a spiral array.
A spiral array is a square arrangement of the first N2 natural numbers, where the
numbers increase sequentially as you go around the edges of the array spiraling inwards.
For example, given 5, produce this array:
0 1 2 3 4
15 16 17 18 5
14 23 24 19 6
13 22 21 ... | #Wren | Wren | import "/fmt" for Conv, Fmt
var n = 5
var top = 0
var left = 0
var bottom = n - 1
var right = n - 1
var sz = n * n
var a = List.filled(sz, 0)
var i = 0
while (left < right) {
// work right, along top
var c = left
while (c <= right) {
a[top*n+c] = i
i = i + 1
c = c + 1
}
top... |
http://rosettacode.org/wiki/Sorting_algorithms/Quicksort | Sorting algorithms/Quicksort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Haskell | Haskell | qsort [] = []
qsort (x:xs) = qsort [y | y <- xs, y < x] ++ [x] ++ qsort [y | y <- xs, y >= x] |
http://rosettacode.org/wiki/Sorting_algorithms/Insertion_sort | Sorting algorithms/Insertion sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Groovy | Groovy | def insertionSort = { list ->
def size = list.size()
(1..<size).each { i ->
def value = list[i]
def j = i - 1
for (; j >= 0 && list[j] > value; j--) {
print "."; list[j+1] = list[j]
}
print "."; list[j+1] = value
}
list
} |
http://rosettacode.org/wiki/Sorting_algorithms/Heapsort | Sorting algorithms/Heapsort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #J | J | swap=: C.~ <
siftDown=: 4 : 0
'c e'=. x
while. e > c=.1+2*s=.c do.
before=. <&({&y)
if. e > 1+c do. c=.c+ c before c+1 end.
if. s before c do. y=. y swap c,s else. break. end.
end.
y
)
heapSort=: 3 : 0
if. 1>: c=. # y do. y return. end.
z=. siftDown&.>/ (c,~each i.<.c%2),<y NB. heapif... |
http://rosettacode.org/wiki/Sorting_algorithms/Merge_sort | Sorting algorithms/Merge sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Factor | Factor | : mergestep ( accum seq1 seq2 -- accum seq1 seq2 )
2dup [ first ] bi@ <
[ [ [ first ] [ rest-slice ] bi [ suffix ] dip ] dip ]
[ [ first ] [ rest-slice ] bi [ swap [ suffix ] dip ] dip ]
if ;
: merge ( seq1 seq2 -- merged )
[ { } ] 2dip
[ 2dup [ length 0 > ] bi@ and ]
[ mergestep ] while
append append ;
: mergesort... |
http://rosettacode.org/wiki/Sorting_algorithms/Selection_sort | Sorting algorithms/Selection sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Ra | Ra |
class SelectionSort
**Sort a list with the Selection Sort algorithm**
on start
args := program arguments
.sort(args)
print args
define sort(list) is shared
**Sort the list**
test
list := [4, 2, 7, 3]
.sort(list)
assert list = [2, 3, 4, 7]
body
count := list.count
last := count ... |
http://rosettacode.org/wiki/Soundex | Soundex | Soundex is an algorithm for creating indices for words based on their pronunciation.
Task
The goal is for homophones to be encoded to the same representation so that they can be matched despite minor differences in spelling (from the soundex Wikipedia article).
Caution
There is a major issue in many of the ... | #Scheme | Scheme | ;; The American Soundex System
;;
;; The soundex code consist of the first letter of the name followed
;; by three digits. These three digits are determined by dropping the
;; letters a, e, i, o, u, h, w and y and adding three digits from the
;; remaining letters of the name according to the table below. There
;; are o... |
http://rosettacode.org/wiki/Stack | Stack |
Data Structure
This illustrates a data structure, a means of storing data within a program.
You may see other such structures in the Data Structures category.
A stack is a container of elements with last in, first out access policy. Sometimes it also called LIFO.
The stack is accessed through its top.
The ba... | #Racket | Racket |
#lang racket
(define stack '())
(define (push x stack) (cons x stack))
(define (pop stack) (values (car stack) (cdr stack)))
(define (empty? stack) (null? stack))
|
http://rosettacode.org/wiki/Spiral_matrix | Spiral matrix | Task
Produce a spiral array.
A spiral array is a square arrangement of the first N2 natural numbers, where the
numbers increase sequentially as you go around the edges of the array spiraling inwards.
For example, given 5, produce this array:
0 1 2 3 4
15 16 17 18 5
14 23 24 19 6
13 22 21 ... | #XPL0 | XPL0 | def N=5;
int A(N,N);
int I, J, X, Y, Steps, Dir;
include c:\cxpl\codes;
[Clear;
I:= 0; X:= -1; Y:= 0; Steps:= N; Dir:= 0;
repeat for J:= 1 to Steps do
[case Dir&3 of
0: X:= X+1;
1: Y:= Y+1;
2: X:= X-1;
3: Y:= Y-1
... |
http://rosettacode.org/wiki/Sorting_algorithms/Quicksort | Sorting algorithms/Quicksort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Icon_and_Unicon | Icon and Unicon | procedure main() #: demonstrate various ways to sort a list and string
demosort(quicksort,[3, 14, 1, 5, 9, 2, 6, 3],"qwerty")
end
procedure quicksort(X,op,lower,upper) #: return sorted list
local pivot,x
if /lower := 1 then { # top l... |
http://rosettacode.org/wiki/Sorting_algorithms/Insertion_sort | Sorting algorithms/Insertion sort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Haskell | Haskell | import Data.List (insert)
insertionSort :: Ord a => [a] -> [a]
insertionSort = foldr insert []
-- Example use:
-- *Main> insertionSort [6,8,5,9,3,2,1,4,7]
-- [1,2,3,4,5,6,7,8,9] |
http://rosettacode.org/wiki/Sorting_algorithms/Heapsort | Sorting algorithms/Heapsort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Janet | Janet |
(defn swap [l a b]
(let [aval (get l a) bval (get l b)]
(put l a bval)
(put l b aval)))
(defn heap-sort [l]
(def len (length l))
# Invariant: heap[parent] <= heap[*children]
(def heap (array/new (+ len 1)))
(array/push heap nil)
(def ROOT 1)
# Returns the parent index of index, or nil if no... |
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