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/JortSort | JortSort |
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
... | #Action.21 | Action! | PROC PrintArray(INT ARRAY a INT size)
INT i
Put('[)
FOR i=0 TO size-1
DO
IF i>0 THEN Put(' ) FI
PrintI(a(i))
OD
Put('])
RETURN
PROC InsertionSort(INT ARRAY a INT size)
INT i,j,value
FOR i=1 TO size-1
DO
value=a(i)
j=i-1
WHILE j>=0 AND a(j)>value
DO
a(j+1)=a(j)
... |
http://rosettacode.org/wiki/Knapsack_problem/0-1 | Knapsack problem/0-1 | A tourist wants to make a good trip at the weekend with his friends.
They will go to the mountains to see the wonders of nature, so he needs to pack well for the trip.
He has a good knapsack for carrying things, but knows that he can carry a maximum of only 4kg in it, and it will have to last the whole day.
He cre... | #VBA | VBA | 'Knapsack problem/0-1 - 12/02/2017
Option Explicit
Const maxWeight = 400
Dim DataList As Variant
Dim xList(64, 3) As Variant
Dim nItems As Integer
Dim s As String, xss As String
Dim xwei As Integer, xval As Integer, nn As Integer
Sub Main()
Dim i As Integer, j As Integer
DataList = Array("map", 9, 150, "compa... |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #PowerShell | PowerShell | $A = 1, 2, 3, 4, 5
Get-Random $A -Count $A.Count |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #ALGOL_68 | ALGOL 68 | BEGIN
INT i;
PROC sum = (REF INT i, INT lo, hi, PROC REAL term)REAL:
COMMENT term is passed by-name, and so is i COMMENT
BEGIN
REAL temp := 0;
i := lo;
WHILE i <= hi DO # ALGOL 68 has a "for" loop but it creates a distinct #
temp +:= term; # variable which w... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #ALGOL_W | ALGOL W | begin
integer i;
real procedure sum ( integer %name% i; integer value lo, hi; real procedure term );
% i is passed by-name, term is passed as a procedure which makes it effectively passed by-name %
begin
real temp;
temp := 0;
i := lo;
while i <= hi do begin % The Algol W... |
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #Ada | Ada | with Ada.Text_IO, Ada.Containers.Generic_Array_Sort;
procedure Jortsort is
function Jort_Sort(List: String) return Boolean is
procedure Sort is new Ada.Containers.Generic_Array_Sort
(Positive, Character, Array_Type => String);
Second_List: String := List;
begin
Sort(Second_List);
retu... |
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #AppleScript | AppleScript | use AppleScript version "2.4"
use framework "Foundation"
use scripting additions
------------------------- JORTSORT -------------------------
-- jortSort :: Ord a => [a] -> Bool
on jortSort(xs)
xs = sort(xs)
end jortSort
--------------------------- TEST ---------------------------
on run
map(jortSor... |
http://rosettacode.org/wiki/Knapsack_problem/0-1 | Knapsack problem/0-1 | A tourist wants to make a good trip at the weekend with his friends.
They will go to the mountains to see the wonders of nature, so he needs to pack well for the trip.
He has a good knapsack for carrying things, but knows that he can carry a maximum of only 4kg in it, and it will have to last the whole day.
He cre... | #VBScript | VBScript | ' Knapsack problem/0-1 - 13/02/2017
dim w(22),v(22),m(22)
data=array( "map", 9, 150, "compass", 13, 35, "water", 153, 200, _
"sandwich", 50, 160 , "glucose", 15, 60, "tin", 68, 45, _
"banana", 27, 60, "apple", 39, 40 , "cheese", 23, 30, "beer", 52, 10, _
"suntan cream", 11, 70, "camera", 32, 30 , "T-shirt", 24, 15, ... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #11l | 11l | F count_jewels(s, j)
R sum(s.map(x -> Int(x C @j)))
print(count_jewels(‘aAAbbbb’, ‘aA’))
print(count_jewels(‘ZZ’, ‘z’)) |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #PureBasic | PureBasic | EnableExplicit
Procedure KnuthShuffle(Array a(1))
Protected i, last = ArraySize(a())
For i = last To 1 Step -1
Swap a(i), a(Random(i))
Next
EndProcedure
Procedure.s ArrayToString(Array a(1))
Protected ret$, i, last = ArraySize(a())
ret$ = Str(a(0))
For i = 1 To last
ret$ + "," + ... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #AppleScript | AppleScript | set i to 0
on jsum(i, lo, hi, term)
set {temp, i's contents} to {0, lo}
repeat while i's contents ≤ hi
set {temp, i's contents} to {temp + (term's f(i)), (i's contents) + 1}
end repeat
return temp
end jsum
script term_func
on f(i)
return 1 / i
end f
end script
return jsum(a... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #ARM_Assembly | ARM Assembly |
/* ARM assembly Raspberry PI */
/* program jensen.s */
/* compil as with option -mcpu=<processor> -mfpu=vfpv4 -mfloat-abi=hard */
/* link with gcc */
/* Constantes */
.equ EXIT, 1 @ Linux syscall
/* Initialized data */
.data
szFormat: .asciz "Result = %.8f \n"
.ali... |
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #Arturo | Arturo | jortSort?: function [a]->
a = sort a
test: function [a]->
print [a "is" (jortSort? a)? -> "sorted" -> "not sorted"]
test [1 2 3]
test [2 3 1]
print ""
test ["a" "b" "c"]
test ["c" "a" "b"] |
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #AutoHotkey | AutoHotkey | JortSort(Array){
sorted:=[]
for index, val in Array
sorted[val]:=1
for key, val in sorted
if (key<>Array[A_Index])
return 0
return 1
} |
http://rosettacode.org/wiki/Knapsack_problem/0-1 | Knapsack problem/0-1 | A tourist wants to make a good trip at the weekend with his friends.
They will go to the mountains to see the wonders of nature, so he needs to pack well for the trip.
He has a good knapsack for carrying things, but knows that he can carry a maximum of only 4kg in it, and it will have to last the whole day.
He cre... | #Visual_Basic | Visual Basic | 'Knapsack problem/0-1 - 12/02/2017
Option Explicit
Const maxWeight = 400
Dim DataList As Variant
Dim xList(64, 3) As Variant
Dim nItems As Integer
Dim s As String, xss As String
Dim xwei As Integer, xval As Integer, nn As Integer
Private Sub Form_Load()
Dim i As Integer, j As Integer
DataList = Array("map", ... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #8080_Assembly | 8080 Assembly | org 100h
jmp demo
;;; Count jewels.
;;; Input: BC = jewels, DE = stones.
;;; Output: BC = count
;;; Destroyed: A, DE, HL
jewel: lxi h,jarr ; Zero out the page of memory
xra a
jzero: mov m,a
inr l
jnz jzero
jrjwl: ldax b ; Get jewel
inx b
mov l,a ; Mark the corresponding byte in the array
inr m
ana a ; If '... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #8086_Assembly | 8086 Assembly | cpu 8086
bits 16
org 100h
section .text
jmp demo
;;; Count jewels.
;;; Input: DS:SI = jewels, DS:DX = stones
;;; Output: CX = how many stones are jewels
;;; Destroyed: AX, BX, SI, DI
jewel: xor ax,ax
mov cx,128 ; Allocate 256 bytes (128 words) on stack
.zloop: push ax ; Set them all to zero
loop .zloop
mov... |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #Python | Python | from random import randrange
def knuth_shuffle(x):
for i in range(len(x)-1, 0, -1):
j = randrange(i + 1)
x[i], x[j] = x[j], x[i]
x = list(range(10))
knuth_shuffle(x)
print("shuffled:", x) |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #Arturo | Arturo | harmonicSum: function [variable, lo, hi, term][
result: new 0.0
loop lo..hi 'n ->
'result + do ~"|variable|: |n| |term|"
result
]
print ["harmonicSum 1->100:" harmonicSum 'i 1 100 {1.0 / i}] |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #AWK | AWK |
# syntax: GAWK -f JENSENS_DEVICE.AWK
# converted from FreeBASIC
BEGIN {
evaluation()
exit(0)
}
function evaluation( hi,i,lo,tmp) {
lo = 1
hi = 100
for (i=lo; i<=hi; i++) {
tmp += (1/i)
}
printf("%.15f\n",tmp)
}
|
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #BQN | BQN | JSort ← ≡⟜∧
JSort 3‿2‿1
0 |
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #C | C |
#include <stdio.h>
#include <stdlib.h>
int number_of_digits(int x){
int NumberOfDigits;
for(NumberOfDigits=0;x!=0;NumberOfDigits++){
x=x/10;
}
return NumberOfDigits;
}
int* convert_array(char array[], int NumberOfElements) //converts integer arguments from char to int
{
int *conve... |
http://rosettacode.org/wiki/Knapsack_problem/0-1 | Knapsack problem/0-1 | A tourist wants to make a good trip at the weekend with his friends.
They will go to the mountains to see the wonders of nature, so he needs to pack well for the trip.
He has a good knapsack for carrying things, but knows that he can carry a maximum of only 4kg in it, and it will have to last the whole day.
He cre... | #Visual_Basic_.NET | Visual Basic .NET | 'Knapsack problem/0-1 - 12/02/2017
Public Class KnapsackBin
Const knam = 0, kwei = 1, kval = 2
Const maxWeight = 400
Dim xList(,) As Object = { _
{"map", 9, 150}, _
{"compass", 13, 35}, _
{"water", 153, 200}, _
{"sandwich", 50, 160}, _
{"glucose", ... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #Ada | Ada | with Ada.Text_IO;
procedure Jewels_And_Stones is
function Count (Jewels, Stones : in String) return Natural is
Sum : Natural := 0;
begin
for J of Jewels loop
for S of Stones loop
if J = S then
Sum := Sum + 1;
exit;
end if;
end... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #ALGOL_68 | ALGOL 68 | BEGIN
# procedure that counts the number of times the letters in jewels occur in stones #
PROC count jewels = ( STRING stones, jewels )INT:
BEGIN
# count the occurences of each letter in stones #
INT upper a pos = 0;
INT lower a pos = 1 + ( ABS "Z" - ABS "A" );
... |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #Quackery | Quackery | [ [] swap dup size times
[ dup size random pluck
nested rot join swap ]
drop ] is shuffle ( [ --> [ )
[ temp put
2dup swap
temp share swap peek
temp share rot peek
dip
[ swap
temp take
swap poke
temp put ]
swap
... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #BASIC256 | BASIC256 | subroutine Evaluation()
lo = 1 : hi = 100 : temp = 0
for i = lo to hi
temp += (1/i) ##r(i)
next i
print temp
end subroutine
call Evaluation()
end |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #BBC_BASIC | BBC BASIC | PRINT FNsum(j, 1, 100, FNreciprocal)
END
DEF FNsum(RETURN i, lo, hi, RETURN func)
LOCAL temp
FOR i = lo TO hi
temp += FN(^func)
NEXT
= temp
DEF FNreciprocal = 1/i |
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #C.23 | C# | using System;
class Program
{
public static bool JortSort<T>(T[] array) where T : IComparable, IEquatable<T>
{
// sort the array
T[] originalArray = (T[]) array.Clone();
Array.Sort(array);
// compare to see if it was originally sorted
for (var i = 0; i < originalArray.Length; i++)
{
... |
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #C.2B.2B | C++ |
#include <algorithm>
#include <string>
#include <iostream>
#include <iterator>
class jortSort {
public:
template<class T>
bool jort_sort( T* o, size_t s ) {
T* n = copy_array( o, s );
sort_array( n, s );
bool r = false;
if( n ) {
r = check( o, n, s );
... |
http://rosettacode.org/wiki/Knapsack_problem/0-1 | Knapsack problem/0-1 | A tourist wants to make a good trip at the weekend with his friends.
They will go to the mountains to see the wonders of nature, so he needs to pack well for the trip.
He has a good knapsack for carrying things, but knows that he can carry a maximum of only 4kg in it, and it will have to last the whole day.
He cre... | #Vlang | Vlang | struct Item {
name string
w int
v int
}
const wants = [
Item{'map', 9, 150},
Item{'compass', 13, 35},
Item{'water', 153, 200},
Item{'sandwich', 50, 60},
Item{'glucose', 15, 60},
Item{'tin', 68, 45},
Item{'banana', 27, 60},
Item{'apple', 39, 4... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #APL | APL | jewels ← +/∊⍨ |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #AppleScript | AppleScript | -- jewelCount :: String -> String -> Int
on jewelCount(jewels, stones)
set js to chars(jewels)
script
on |λ|(a, c)
if elem(c, jewels) then
a + 1
else
a
end if
end |λ|
end script
foldl(result, 0, chars(stones))
end jewelC... |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #R | R | fisheryatesshuffle <- function(n)
{
pool <- seq_len(n)
a <- c()
while(length(pool) > 0)
{
k <- sample.int(length(pool), 1)
a <- c(a, pool[k])
pool <- pool[-k]
}
a
} |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #Bracmat | Bracmat | ( ( sum
= I lo hi Term temp
. !arg:((=?I),?lo,?hi,(=?Term))
& 0:?temp
& !lo:?!I
& whl
' ( !!I:~>!hi
& !temp+!Term:?temp
& 1+!!I:?!I
)
& !temp
)
& sum$((=i),1,100,(=!i^-1))
); |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #C | C | #include <stdio.h>
int i;
double sum(int *i, int lo, int hi, double (*term)()) {
double temp = 0;
for (*i = lo; *i <= hi; (*i)++)
temp += term();
return temp;
}
double term_func() { return 1.0 / i; }
int main () {
printf("%f\n", sum(&i, 1, 100, term_func));
return 0;
} |
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #Clojure | Clojure | (defn jort-sort [x] (= x (sort x))) |
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #Common_Lisp | Common Lisp |
(defun jort-sort (x)
(equalp x (sort (copy-seq x) #'<)))
|
http://rosettacode.org/wiki/Knapsack_problem/0-1 | Knapsack problem/0-1 | A tourist wants to make a good trip at the weekend with his friends.
They will go to the mountains to see the wonders of nature, so he needs to pack well for the trip.
He has a good knapsack for carrying things, but knows that he can carry a maximum of only 4kg in it, and it will have to last the whole day.
He cre... | #Wren | Wren | import "/fmt" for Fmt
var wants = [
["map", 9, 150],
["compass", 13, 35],
["water", 153, 200],
["sandwich", 50, 160],
["glucose", 15, 60],
["tin", 68, 45],
["banana", 27, 60],
["apple", 39, 40],
["cheese", 23, 30],
["beer", 52, 10],
["suntan cream", 11, 70],
["camera", ... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #Arturo | Arturo | count: function [jewels,stones][
size select split stones => [in? & jewels]
]
print count "aA" "aAAbbbb" |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #AutoHotkey | AutoHotkey | JewelsandStones(ss, jj){
for each, jewel in StrSplit(jj)
for each, stone in StrSplit(ss)
if (stone == jewel)
num++
return num
} |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #Racket | Racket | #lang racket
(define (swap! vec i j)
(let ([tmp (vector-ref vec i)])
(vector-set! vec i (vector-ref vec j))
(vector-set! vec j tmp)))
(define (knuth-shuffle x)
(if (list? x)
(vector->list (knuth-shuffle (list->vector x)))
(begin (for ([i (in-range (sub1 (vector-length x)) 0 -1)])
(d... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #C.23 | C# | using System;
class JensensDevice
{
public static double Sum(ref int i, int lo, int hi, Func<double> term)
{
double temp = 0.0;
for (i = lo; i <= hi; i++)
{
temp += term();
}
return temp;
}
static void Main()
{
int i = 0;
Co... |
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #Crystal | Crystal | def jort_sort(array)
array == array.sort
end |
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #D | D |
module jortsort;
import std.algorithm : sort, SwapStrategy;
bool jortSort(T)(T[] array) {
auto originalArray = array.dup;
sort!("a < b", SwapStrategy.stable)(array);
return originalArray == array;
}
unittest {
assert(jortSort([1, 2, 3]));
assert(!jortSort([1, 6, 3]));
assert(jortSort(["apple", "banana", "... |
http://rosettacode.org/wiki/Knapsack_problem/0-1 | Knapsack problem/0-1 | A tourist wants to make a good trip at the weekend with his friends.
They will go to the mountains to see the wonders of nature, so he needs to pack well for the trip.
He has a good knapsack for carrying things, but knows that he can carry a maximum of only 4kg in it, and it will have to last the whole day.
He cre... | #XPL0 | XPL0 | include c:\cxpl\codes; \include 'code' declarations
int Item, Items, Weights, Values,
BestItems, BestValues,
I, W, V, N;
def Tab=9;
def Name, Weight, Value;
[Item:= [["map ", 9, 150],
["compass ", 13, 35],
["water ... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #AWK | AWK | # syntax: GAWK -f JEWELS_AND_STONES.AWK
BEGIN {
printf("%d\n",count("aAAbbbb","aA"))
printf("%d\n",count("ZZ","z"))
exit(0)
}
function count(stone,jewel, i,total) {
for (i=1; i<length(stone); i++) {
if (jewel ~ substr(stone,i,1)) {
total++
}
}
return(total)
}
|
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #BASIC | BASIC | 10 READ N%
20 FOR A%=1 TO N%
30 READ J$,S$
40 GOSUB 100
50 PRINT S$;" in ";J$;":";J%
60 NEXT
70 END
100 REM Count how many stones (S$) are jewels (J$).
110 DIM J%(127)
120 J%=0
130 FOR I%=1 TO LEN(J$): J%(ASC(MID$(J$,I%,1)))=1: NEXT
140 FOR I%=1 TO LEN(S$): J%=J%+J%(ASC(MID$(S$,I%,1))): NEXT
150 ERASE J%
160 RETURN
... |
http://rosettacode.org/wiki/Jacobi_symbol | Jacobi symbol | The Jacobi symbol is a multiplicative function that generalizes the Legendre symbol. Specifically, the Jacobi symbol (a | n) equals the product of the Legendre symbols (a | p_i)^(k_i), where n = p_1^(k_1)*p_2^(k_2)*...*p_i^(k_i) and the Legendre symbol (a | p) denotes the value of a ^ ((p-1)/2) (mod p)
(a | p) ≡ 1 ... | #11l | 11l | F jacobi(=a, =n)
I n <= 0
X ValueError(‘'n' must be a positive integer.’)
I n % 2 == 0
X ValueError(‘'n' must be odd.’)
a %= n
V result = 1
L a != 0
L a % 2 == 0
a /= 2
V n_mod_8 = n % 8
I n_mod_8 C (3, 5)
result = -result
(a, n) = (n, a)
... |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #Raku | Raku | sub shuffle (@a is copy) {
for 1 ..^ @a -> $n {
my $k = (0 .. $n).pick;
$k == $n or @a[$k, $n] = @a[$n, $k];
}
return @a;
} |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #C.2B.2B | C++ |
#include <iostream>
#define SUM(i,lo,hi,term)\
[&](const int _lo,const int _hi){\
decltype(+(term)) sum{};\
for (i = _lo; i <= _hi; ++i) sum += (term);\
return sum;\
}((lo),(hi))
int i;
double sum(int &i, int lo, int hi, double (*term)()) {
double temp = 0;
for (i = lo; i <= hi; i++)
temp +=... |
http://rosettacode.org/wiki/JortSort | JortSort |
Sorting Algorithm
This is a sorting algorithm. It may be applied to a set of data in order to sort it.
For comparing various sorts, see compare sorts.
For other sorting algorithms, see sorting algorithms, or:
O(n logn) sorts
Heap sort |
Merge sort |
Patience sort |
Quick sort
O(n log2n) sorts
Shell Sort
... | #Delphi | Delphi |
program JortSort;
{$APPTYPE CONSOLE}
{$R *.res}
uses
System.SysUtils,
System.Generics.Collections,
System.Generics.Defaults;
type
TArrayHelper = class helper for TArray
public
class function JortSort<T>(const original: TArray<T>): Boolean; static;
end;
{ TArrayHelper }
class function TArrayH... |
http://rosettacode.org/wiki/Knapsack_problem/0-1 | Knapsack problem/0-1 | A tourist wants to make a good trip at the weekend with his friends.
They will go to the mountains to see the wonders of nature, so he needs to pack well for the trip.
He has a good knapsack for carrying things, but knows that he can carry a maximum of only 4kg in it, and it will have to last the whole day.
He cre... | #zkl | zkl | fcn addItem(pairs,it){ // pairs is list of (cost of:,names), it is (name,w,v)
w,left,right:=it[1],pairs[0,w],pairs[w,*];
left.extend(right.zipWith(
fcn([(t1,_)]a,[(t2,_)]b){ t1>t2 and a or b },
pairs.apply('wrap([(tot,names)]){ T(tot + it[2], names + it[0]) })))
}//--> new list of pairs |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #BASIC256 | BASIC256 |
function contar_joyas(piedras, joyas)
cont = 0
for i = 1 to length(piedras)
bc = instr(joyas, mid(piedras, i, 1), 1)
if bc <> 0 then cont += 1
next i
return cont
end function
print contar_joyas("aAAbbbb", "aA")
print contar_joyas("ZZ", "z")
print contar_joyas("ABCDEFGHIJKLMNOPQRSTUVWXYZ@abcdefghijklmnopqrst... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #BCPL | BCPL | get "libhdr"
let jewels(j, s) = valof
$( let jewel = vec 255
let count = 0
for i = 0 to 255 do jewel!i := false
for i = 1 to j%0 do jewel!(j%i) := true
for i = 1 to s%0 do
if jewel!(s%i) then
count := count + 1
resultis count
$)
let show(j, s) be
writef("*"%S*" in *"%S*... |
http://rosettacode.org/wiki/Jacobi_symbol | Jacobi symbol | The Jacobi symbol is a multiplicative function that generalizes the Legendre symbol. Specifically, the Jacobi symbol (a | n) equals the product of the Legendre symbols (a | p_i)^(k_i), where n = p_1^(k_1)*p_2^(k_2)*...*p_i^(k_i) and the Legendre symbol (a | p) denotes the value of a ^ ((p-1)/2) (mod p)
(a | p) ≡ 1 ... | #Action.21 | Action! | INCLUDE "D2:PRINTF.ACT" ;from the Action! Tool Kit
INT FUNC Jacobi(INT a,n)
INT res,tmp
IF a>=n THEN
a=a MOD n
FI
res=1
WHILE a
DO
WHILE (a&1)=0
DO
a=a RSH 1
tmp=n&7
IF tmp=3 OR tmp=5 THEN
res=-res
FI
OD
tmp=a a=n n=tmp
IF (a%3)=3 AND (n%3)=3 THEN
... |
http://rosettacode.org/wiki/Jacobi_symbol | Jacobi symbol | The Jacobi symbol is a multiplicative function that generalizes the Legendre symbol. Specifically, the Jacobi symbol (a | n) equals the product of the Legendre symbols (a | p_i)^(k_i), where n = p_1^(k_1)*p_2^(k_2)*...*p_i^(k_i) and the Legendre symbol (a | p) denotes the value of a ^ ((p-1)/2) (mod p)
(a | p) ≡ 1 ... | #Arturo | Arturo | jacobi: function [n,k][
N: n % k
K: k
result: 1
while [N <> 0][
while [even? N][
N: shr N 1
if contains? [3 5] and K 7 ->
result: neg result
]
[N,K]: @[K,N]
if and? 3=and N 3 3=and K 3 ->
result: neg result
N: ... |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #REBOL | REBOL | rebol [
Title: "Fisher-Yates"
Purpose: {Fisher-Yates shuffling algorithm}
]
fisher-yates: func [b [block!] /local n i j k] [
n: length? b: copy b
i: n
while [i > 1] [
if i <> j: random i [
error? set/any 'k pick b j
change/only at b j pick b i
change/onl... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #Clipper | Clipper | // Jensen's device in Clipper (or Harbour)
// A fairly direct translation of the Algol 60
// John M Skelton 11-Feb-2012
function main()
local i
? transform(sum(@i, 1, 100, {|| 1 / i}), "##.###############")
// @ is the quite rarely used pass by ref, {|| ...} is a
// code block (an anonymous function, here wi... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #Common_Lisp | Common Lisp | (declaim (inline %sum))
(defun %sum (lo hi func)
(loop for i from lo to hi sum (funcall func i)))
(defmacro sum (i lo hi term)
`(%sum ,lo ,hi (lambda (,i) ,term))) |
http://rosettacode.org/wiki/JortSort | JortSort |
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 | iex(1)> jortsort = fn list -> list == Enum.sort(list) end
#Function<6.90072148/1 in :erl_eval.expr/5>
iex(2)> jortsort.([1,2,3,4])
true
iex(3)> jortsort.([1,2,5,4])
false |
http://rosettacode.org/wiki/JortSort | JortSort |
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 jortSort n=n=Array.sort n
printfn "%A %A" (jortSort [|1;23;42|]) (jortSort [|23;42;1|])
|
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #Bracmat | Bracmat | ( f
= stones jewels N
. !arg:(?stones.?jewels)
& 0:?N
& ( @( !stones
: ?
( %@
: [%( @(!jewels:? !sjt ?)
& 1+!N:?N
|
)
& ~
)
?
... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #C | C | #include <stdio.h>
#include <string.h>
int count_jewels(const char *s, const char *j) {
int count = 0;
for ( ; *s; ++s) if (strchr(j, *s)) ++count;
return count;
}
int main() {
printf("%d\n", count_jewels("aAAbbbb", "aA"));
printf("%d\n", count_jewels("ZZ", "z"));
return 0;
} |
http://rosettacode.org/wiki/Jacobi_symbol | Jacobi symbol | The Jacobi symbol is a multiplicative function that generalizes the Legendre symbol. Specifically, the Jacobi symbol (a | n) equals the product of the Legendre symbols (a | p_i)^(k_i), where n = p_1^(k_1)*p_2^(k_2)*...*p_i^(k_i) and the Legendre symbol (a | p) denotes the value of a ^ ((p-1)/2) (mod p)
(a | p) ≡ 1 ... | #AWK | AWK |
# syntax: GAWK -f JACOBI_SYMBOL.AWK
BEGIN {
max_n = 29
max_a = max_n + 1
printf("n\\a")
for (i=1; i<=max_a; i++) {
printf("%3d",i)
underline = underline " --"
}
printf("\n---%s\n",underline)
for (n=1; n<=max_n; n+=2) {
printf("%3d",n)
for (a=1; a<=max_a; a++) {
... |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #REXX | REXX | /*REXX program shuffles a deck of playing cards (with jokers) using the Knuth shuffle.*/
rank= 'A 2 3 4 5 6 7 8 9 10 J Q K' /*pips of the various playing cards. */
suit= '♣♠♦♥' /*suit " " " " " */
parse arg seed . ... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #D | D | double sum(ref int i, in int lo, in int hi, lazy double term)
pure @safe /*nothrow @nogc*/ {
double result = 0.0;
for (i = lo; i <= hi; i++)
result += term();
return result;
}
void main() {
import std.stdio;
int i;
sum(i, 1, 100, 1.0/i).writeln;
} |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #DWScript | DWScript | function sum(var i : Integer; lo, hi : Integer; lazy term : Float) : Float;
begin
i:=lo;
while i<=hi do begin
Result += term;
Inc(i);
end;
end;
var i : Integer;
PrintLn(sum(i, 1, 100, 1.0/i)); |
http://rosettacode.org/wiki/JortSort | JortSort |
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 sorting ;
: jortsort ( seq -- ? ) dup natural-sort = ; |
http://rosettacode.org/wiki/JortSort | JortSort |
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 | ' FB 1.05.0 Win64
' Although it's possible to create generic sorting routines using macros in FreeBASIC
' here we will just use Integer arrays.
Sub quicksort(a() As Integer, first As Integer, last As Integer)
Dim As Integer length = last - first + 1
If length < 2 Then Return
Dim pivot As Integer = a(first + ... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #C.23 | C# | using System;
using System.Linq;
public class Program
{
public static void Main() {
Console.WriteLine(Count("aAAbbbb", "Aa"));
Console.WriteLine(Count("ZZ", "z"));
}
private static int Count(string stones, string jewels) {
var bag = jewels.ToHashSet();
return stones.Count... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #C.2B.2B | C++ | #include <algorithm>
#include <iostream>
int countJewels(const std::string& s, const std::string& j) {
int count = 0;
for (char c : s) {
if (j.find(c) != std::string::npos) {
count++;
}
}
return count;
}
int main() {
using namespace std;
cout << countJewels("aAA... |
http://rosettacode.org/wiki/Jacobi_symbol | Jacobi symbol | The Jacobi symbol is a multiplicative function that generalizes the Legendre symbol. Specifically, the Jacobi symbol (a | n) equals the product of the Legendre symbols (a | p_i)^(k_i), where n = p_1^(k_1)*p_2^(k_2)*...*p_i^(k_i) and the Legendre symbol (a | p) denotes the value of a ^ ((p-1)/2) (mod p)
(a | p) ≡ 1 ... | #C | C | #include <stdlib.h>
#include <stdio.h>
#define SWAP(a, b) (((a) ^= (b)), ((b) ^= (a)), ((a) ^= (b)))
int jacobi(unsigned long a, unsigned long n) {
if (a >= n) a %= n;
int result = 1;
while (a) {
while ((a & 1) == 0) {
a >>= 1;
if ((n & 7) == 3 || (n & 7) == 5) result = -result;
}
SWAP(a, n);
if ((... |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #Ring | Ring |
# Project : Knuth shuffle
items = list(52)
for n = 1 to len(items)
items[n] = n
next
knuth(items)
showarray(items)
func knuth(items)
for i = len(items) to 1 step -1
j = random(i-1) + 1
if i != j
temp = items[i]
items[i] = items[j]
... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #E | E | pragma.enable("one-method-object") # "def _.get" is experimental shorthand
def sum(&i, lo, hi, &term) { # bind i and term to passed slots
var temp := 0
i := lo
while (i <= hi) { # E has numeric-range iteration but it creates a distinct
temp += term # variable which would not be ... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #Elixir | Elixir | defmodule JensenDevice do
def task, do: sum( 1, 100, fn i -> 1 / i end )
defp sum( i, high, _term ) when i > high, do: 0
defp sum( i, high, term ) do
temp = term.( i )
temp + sum( i + 1, high, term )
end
end
IO.puts JensenDevice.task |
http://rosettacode.org/wiki/JortSort | JortSort |
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 (
"log"
"sort"
)
func main() {
log.Println(jortSort([]int{1, 2, 1, 11, 213, 2, 4})) //false
log.Println(jortSort([]int{0, 1, 0, 0, 0, 0})) //false
log.Println(jortSort([]int{1, 2, 4, 11, 22, 22})) //true
log.Println(jortSort([]int{0, 0, 0, 1, 2, 2})) //true
}
func... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #CLU | CLU | count_jewels = proc (jewels, stones: string) returns (int)
is_jewel: array[bool] := array[bool]$fill(0, 256, false)
for c: char in string$chars(jewels) do
is_jewel[char$c2i(c)] := true
end
n_jewels: int := 0
for c: char in string$chars(stones) do
if is_jewel[char$c2i(c)] then n_jew... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #Cowgol | Cowgol | include "cowgol.coh";
sub count_jewels(stones: [uint8], jewels: [uint8]): (count: uint16) is
var jewel_mark: uint8[256];
MemZero(&jewel_mark as [uint8], 256);
while [jewels] != 0 loop
jewel_mark[[jewels]] := 1;
jewels := @next jewels;
end loop;
count := 0;
while [stones] !=... |
http://rosettacode.org/wiki/Jacobi_symbol | Jacobi symbol | The Jacobi symbol is a multiplicative function that generalizes the Legendre symbol. Specifically, the Jacobi symbol (a | n) equals the product of the Legendre symbols (a | p_i)^(k_i), where n = p_1^(k_1)*p_2^(k_2)*...*p_i^(k_i) and the Legendre symbol (a | p) denotes the value of a ^ ((p-1)/2) (mod p)
(a | p) ≡ 1 ... | #C.2B.2B | C++ | #include <algorithm>
#include <cassert>
#include <iomanip>
#include <iostream>
int jacobi(int n, int k) {
assert(k > 0 && k % 2 == 1);
n %= k;
int t = 1;
while (n != 0) {
while (n % 2 == 0) {
n /= 2;
int r = k % 8;
if (r == 3 || r == 5)
t = -... |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #Ruby | Ruby | class Array
def knuth_shuffle!
j = length
i = 0
while j > 1
r = i + rand(j)
self[i], self[r] = self[r], self[i]
i += 1
j -= 1
end
self
end
end
r = Hash.new(0)
100_000.times do |i|
a = [1,2,3].knuth_shuffle!
r[a] += 1
end
r.keys.sort.each {|a| puts "#{a.inspect} =>... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #Erlang | Erlang |
-module( jensens_device ).
-export( [task/0] ).
task() ->
sum( 1, 100, fun (I) -> 1 / I end ).
sum( I, High, _Term ) when I > High -> 0;
sum( I, High, Term ) ->
Temp = Term( I ),
Temp + sum( I + 1, High, Term ).
|
http://rosettacode.org/wiki/JortSort | JortSort |
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 (sort)
jortSort :: (Ord a) => [a] -> Bool
jortSort list = list == sort list |
http://rosettacode.org/wiki/JortSort | JortSort |
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 | jortsort=: -: /:~ |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #Crystal | Crystal | stones, jewels = "aAAbbbb", "aA"
stones.count(jewels) # => 3
# The above solution works for that case, but fails with certain other "jewels":
stones, jewels = "aA^Bb", "^b"
stones.count(jewels) # => 4
# '^b' in the "jewels" is read as "characters other than 'b'".
# This works as intended though:
stones.count { |c| ... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #D | D | import std.algorithm;
import std.stdio;
int countJewels(string s, string j) {
int count;
foreach (c; s) {
if (j.canFind(c)) {
count++;
}
}
return count;
}
void main() {
countJewels("aAAbbbb", "aA").writeln;
countJewels("ZZ", "z").writeln;
} |
http://rosettacode.org/wiki/Jacobi_symbol | Jacobi symbol | The Jacobi symbol is a multiplicative function that generalizes the Legendre symbol. Specifically, the Jacobi symbol (a | n) equals the product of the Legendre symbols (a | p_i)^(k_i), where n = p_1^(k_1)*p_2^(k_2)*...*p_i^(k_i) and the Legendre symbol (a | p) denotes the value of a ^ ((p-1)/2) (mod p)
(a | p) ≡ 1 ... | #Crystal | Crystal | def jacobi(a, n)
raise ArgumentError.new "n must b positive and odd" if n < 1 || n.even?
res = 1
until (a %= n) == 0
while a.even?
a >>= 1
res = -res if [3, 5].includes? n % 8
end
a, n = n, a
res = -res if a % 4 == n % 4 == 3
end
n == 1 ? res : 0
end
puts "Jacobian symbols for ja... |
http://rosettacode.org/wiki/Jacobi_symbol | Jacobi symbol | The Jacobi symbol is a multiplicative function that generalizes the Legendre symbol. Specifically, the Jacobi symbol (a | n) equals the product of the Legendre symbols (a | p_i)^(k_i), where n = p_1^(k_1)*p_2^(k_2)*...*p_i^(k_i) and the Legendre symbol (a | p) denotes the value of a ^ ((p-1)/2) (mod p)
(a | p) ≡ 1 ... | #Erlang | Erlang |
jacobi(_, N) when N =< 0 -> jacobi_domain_error;
jacobi(_, N) when (N band 1) =:= 0 -> jacobi_domain_error;
jacobi(A, N) when A < 0 ->
J2 = ja(-A, N),
case N band 3 of
1 -> J2;
3 -> -J2
end;
jacobi(A, N) -> ja(A, N).
ja(0, _) -> 0;
ja(1, _) -> 1;
ja(A, N) when A >= N -> ja(A rem N, N);
j... |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #Run_BASIC | Run BASIC | dim cards(52)
for i = 1 to 52 ' make deck
cards(i) = i
next
for i = 52 to 1 step -1 ' shuffle deck
r = int((rnd(1)*i) + 1)
if r <> i then
hold = cards(r)
cards(r) = cards(i)
cards(i) = hold
end if
next
print "== Shuffled Cards ==" ' print shuffled cards
for i =... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #F.23 | F# |
printfn "%.14f" (List.fold(fun n g->n+1.0/g) 0.0 [1.0..100.0]);;
|
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #Factor | Factor | : sum ( lo hi term -- x ) [ [a,b] ] dip map-sum ; inline
1 100 [ recip ] sum . |
http://rosettacode.org/wiki/JortSort | JortSort |
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 jortsort [xs]
(deep= xs (sorted xs)))
(print (jortsort @[1 2 3 4 5])) # true
(print (jortsort @[2 1 3 4 5])) # false |
http://rosettacode.org/wiki/JortSort | JortSort |
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
... | #Java | Java | public class JortSort {
public static void main(String[] args) {
System.out.println(jortSort(new int[]{1, 2, 3}));
}
static boolean jortSort(int[] arr) {
return true;
}
} |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #Draco | Draco | proc nonrec count_jewels(*char jewels, stones) word:
[256] bool jewel;
word count;
byte i;
char c;
for i from 0 upto 255 do jewel[i] := false od;
while c := jewels*; c ~= '\e' do
jewel[c] := true;
jewels := jewels + 1;
od;
count := 0;
while c := stones*; c ~= '\e'... |
http://rosettacode.org/wiki/Jewels_and_stones | Jewels and stones | Jewels and stones
You are encouraged to solve this task according to the task description, using any language you may know.
Task
Create a function which takes two string parameters: 'stones' and 'jewels' and returns an integer.
Both strings can contain any number of upper or lower case letters. However, in the case ... | #Dyalect | Dyalect | func countJewels(stones, jewels) {
stones.Iterate().Map(x => jewels.Contains(x) ? 1 : 0).Reduce((x,y) => x + y, 0)
}
print(countJewels("aAAbbbb", "aA"))
print(countJewels("ZZ", "z")) |
http://rosettacode.org/wiki/Jacobi_symbol | Jacobi symbol | The Jacobi symbol is a multiplicative function that generalizes the Legendre symbol. Specifically, the Jacobi symbol (a | n) equals the product of the Legendre symbols (a | p_i)^(k_i), where n = p_1^(k_1)*p_2^(k_2)*...*p_i^(k_i) and the Legendre symbol (a | p) denotes the value of a ^ ((p-1)/2) (mod p)
(a | p) ≡ 1 ... | #F.23 | F# |
//Jacobi Symbol. Nigel Galloway: July 14th., 2020
let J n m=let rec J n m g=match n with
0->if m=1 then g else 0
|n when n%2=0->J(n/2) m (if m%8=3 || m%8=5 then -g else g)
|n->J (m%n) n (if m%4=3 && n%4=3 then -g else g)
J (n%m)... |
http://rosettacode.org/wiki/Jacobi_symbol | Jacobi symbol | The Jacobi symbol is a multiplicative function that generalizes the Legendre symbol. Specifically, the Jacobi symbol (a | n) equals the product of the Legendre symbols (a | p_i)^(k_i), where n = p_1^(k_1)*p_2^(k_2)*...*p_i^(k_i) and the Legendre symbol (a | p) denotes the value of a ^ ((p-1)/2) (mod p)
(a | p) ≡ 1 ... | #Factor | Factor | function gcdp( a as uinteger, b as uinteger ) as uinteger
if b = 0 then return a
return gcdp( b, a mod b )
end function
function gcd(a as integer, b as integer) as uinteger
return gcdp( abs(a), abs(b) )
end function
function jacobi( a as uinteger, n as uinteger ) as integer
if gcd(a, n)<>1 then retu... |
http://rosettacode.org/wiki/Knuth_shuffle | Knuth shuffle | The Knuth shuffle (a.k.a. the Fisher-Yates shuffle) is an algorithm for randomly shuffling the elements of an array.
Task
Implement the Knuth shuffle for an integer array (or, if possible, an array of any type).
Specification
Given an array items with indices ranging from 0 to last, the algorithm can be d... | #Rust | Rust | use rand::Rng;
extern crate rand;
fn knuth_shuffle<T>(v: &mut [T]) {
let mut rng = rand::thread_rng();
let l = v.len();
for n in 0..l {
let i = rng.gen_range(0, l - n);
v.swap(i, l - n - 1);
}
}
fn main() {
let mut v: Vec<_> = (0..10).collect();
println!("before: {:?}",... |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #Forth | Forth | : sum 0 s>f 1+ swap ?do i over execute f+ loop drop ;
:noname s>f 1 s>f fswap f/ ; 1 100 sum f. |
http://rosettacode.org/wiki/Jensen%27s_Device | Jensen's Device | Jensen's Device
You are encouraged to solve this task according to the task description, using any language you may know.
This task is an exercise in call by name.
Jensen's Device is a computer programming technique devised by Danish computer scientist Jørn Jensen after studying the ALGOL 60 Report.
The following pr... | #Fortran | Fortran | FUNCTION SUM(I,LO,HI,TERM)
SUM = 0
DO I = LO,HI
SUM = SUM + TERM
END DO
END FUNCTION SUM
WRITE (6,*) SUM(I,1,100,1.0/I)
END |
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