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/Cyclops_numbers | Cyclops numbers | A cyclops number is a number with an odd number of digits that has a zero in the center, but nowhere else. They are named so in tribute to the one eyed giants Cyclops from Greek mythology.
Cyclops numbers can be found in any base. This task strictly is looking for cyclops numbers in base 10.
There are many different ... | #Wren | Wren | import "/math" for Int
import "/seq" for Lst
import "/fmt" for Fmt
import "/str" for Str
var findFirst = Fn.new { |list|
var i = 0
for (n in list) {
if (n > 1e7) return [n, i]
i = i + 1
}
}
var ranges = [0..0, 101..909, 11011..99099, 1110111..9990999, 111101111..119101111]
var cyclops ... |
http://rosettacode.org/wiki/Date_manipulation | Date manipulation | Task
Given the date string "March 7 2009 7:30pm EST",
output the time 12 hours later in any human-readable format.
As extra credit, display the resulting time in a time zone different from your own.
| #EchoLisp | EchoLisp |
(define my-date (string->date "March 7 2009 7:30 pm EST"))
→ Sun Mar 08 2009 01:30:00 GMT+0100 (CET)
(date-add! my-date (* 12 3600))
→ Sun Mar 08 2009 13:30:00 GMT+0100 (CET)
(string->date my-date)
(date->string my-date)
→ "8/3/2009 13:30:00" ;; human localized, Paris time.
|
http://rosettacode.org/wiki/Date_manipulation | Date manipulation | Task
Given the date string "March 7 2009 7:30pm EST",
output the time 12 hours later in any human-readable format.
As extra credit, display the resulting time in a time zone different from your own.
| #Erlang | Erlang |
-module( date_manipulation ).
-export( [task/0] ).
task() ->
{Date_time, TZ} = date_time_tz_from_string( "March 7 2009 7:30pm EST" ),
Seconds1 = calendar:datetime_to_gregorian_seconds( Date_time ),
Seconds2 = calendar:datetime_to_gregorian_seconds( {calendar:gregorian_days_to_date(0), {12, 0, 0}} ),
Date_time... |
http://rosettacode.org/wiki/Deal_cards_for_FreeCell | Deal cards for FreeCell | Free Cell is the solitaire card game that Paul Alfille introduced to the PLATO system in 1978. Jim Horne, at Microsoft, changed the name to FreeCell and reimplemented the game for DOS, then Windows.
This version introduced 32000 numbered deals. (The FreeCell FAQ tells this history.)
As the game became popular, Jim H... | #PHP | PHP | class FreeCell_Deal {
protected $deck = array(
'AC', 'AD', 'AH', 'AS', '2C', '2D', '2H', '2S', '3C', '3D', '3H', '3S',
'4C', '4D', '4H', '4S', '5C', '5D', '5H', '5S', '6C', '6D', '6H', '6S',
'7C', '7D', '7H', '7S', '8C', '8D', '8H', '8S', '9C', '9D', '9H', '9S',
'TC', 'TD', 'TH',... |
http://rosettacode.org/wiki/Define_a_primitive_data_type | Define a primitive data type | Demonstrate how to define a type that behaves like an integer but has a lowest valid value of 1 and a highest valid value of 10. Include all bounds checking you need to write, or explain how the compiler or interpreter creates those bounds checks for you.
| #Visual_Basic_.NET | Visual Basic .NET | Structure LimitedInt
Implements IComparable, IComparable(Of LimitedInt), IConvertible, IEquatable(Of LimitedInt), IFormattable
Private Const MIN_VALUE = 1
Private Const MAX_VALUE = 10
Shared ReadOnly MinValue As New LimitedInt(MIN_VALUE)
Shared ReadOnly MaxValue As New LimitedInt(MAX_VALUE)
... |
http://rosettacode.org/wiki/Day_of_the_week | Day of the week | A company decides that whenever Xmas falls on a Sunday they will give their workers all extra paid holidays so that, together with any public holidays, workers will not have to work the following week (between the 25th of December and the first of January).
Task
In what years between 2008 and 2121 will the 25th of ... | #COBOL | COBOL |
program-id. dec25.
data division.
working-storage section.
1 work-date.
2 yr pic 9(4) value 2008.
2 mo-da pic 9(4) value 1225. *> Dec 25
1 wk-date redefines work-date pic 9(8).
1 binary.
2 int-date pic 9(8).
2 dow pic 9(4).
procedure div... |
http://rosettacode.org/wiki/CUSIP | CUSIP |
This page uses content from Wikipedia. The original article was at CUSIP. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
A CUSIP is a nine-character alphanumeric code that identifies a North A... | #BCPL | BCPL | get "libhdr"
let validcusip(c) = valof
$( let sum = 0
unless c%0 = 9 resultis false
for i = 1 to 8 do
$( let v = ( 2 - (i & 1) ) * valof
$( test '0' <= c%i <= '9'
then resultis c%i - '0'
or test 'A' <= c%i <= 'Z'
then resultis 10 + c%i - 'A'
... |
http://rosettacode.org/wiki/CUSIP | CUSIP |
This page uses content from Wikipedia. The original article was at CUSIP. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
A CUSIP is a nine-character alphanumeric code that identifies a North A... | #C | C |
#include<stdlib.h>
#include<stdio.h>
int cusipCheck(char str[10]){
int sum=0,i,v;
for(i=0;i<8;i++){
if(str[i]>='0'&&str[i]<='9')
v = str[i]-'0';
else if(str[i]>='A'&&str[i]<='Z')
v = (str[i] - 'A' + 10);
else if(str[i]=='*')
v = 36;
else if(str[i]=='@')
v = 37;
else if(str[i]=='#')
v = ... |
http://rosettacode.org/wiki/Date_format | Date format | This task has been clarified. Its programming examples are in need of review to ensure that they still fit the requirements of the task.
Task
Display the current date in the formats of:
2007-11-23 and
Friday, November 23, 2007
| #AutoIt | AutoIt |
#include <Date.au3>
$iYear = 2007
$iMonth = 11
$iDay = 10
ConsoleWrite(StringFormat('%4d-%02d-%02d', $iYear, $iMonth, $iDay) & @LF)
$iWeekDay = _DateToDayOfWeekISO($iYear, $iMonth, $iDay)
ConsoleWrite(StringFormat('%s, %s %02d, %4d', _GetLongDayLocale($iWeekDay), _GetLongMonthLocale($iMonth), $iDay, $iYear) & @... |
http://rosettacode.org/wiki/Cullen_and_Woodall_numbers | Cullen and Woodall numbers | A Cullen number is a number of the form n × 2n + 1 where n is a natural number.
A Woodall number is very similar. It is a number of the form n × 2n - 1 where n is a natural number.
So for each n the associated Cullen number and Woodall number differ by 2.
Woodall numbers are sometimes referred to as Riesel numbers o... | #ALGOL_68 | ALGOL 68 | BEGIN # find Cullen and Woodall numbers and determine which are prime #
# a Cullen number n is n2^2 + 1, Woodall number is n2^n - 1 #
PR read "primes.incl.a68" PR # include prime utilities #
PR precision 800 PR # set number of digits for Algol 68G LONG LONG INT #
# returns the nth... |
http://rosettacode.org/wiki/Damm_algorithm | Damm algorithm | The Damm algorithm is a checksum algorithm which detects all single digit errors and adjacent transposition errors.
The algorithm is named after H. Michael Damm.
Task
Verify the checksum, stored as last digit of an input.
| #C | C | #include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
bool damm(unsigned char *input, size_t length) {
static const unsigned char table[10][10] = {
{0, 3, 1, 7, 5, 9, 8, 6, 4, 2},
{7, 0, 9, 2, 1, 5, 4, 8, 6, 3},
{4, 2, 0, 6, 8, 7, 1, 3, 5, 9},
{1, 7, 5, 0, 9, 8, 3, 4, 2, 6},
... |
http://rosettacode.org/wiki/Currying | Currying |
This page uses content from Wikipedia. The original article was at Currying. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
Task
Create a simple demonstrative example of Currying in a specific la... | #ALGOL_68 | ALGOL 68 | # Raising a function to a power #
MODE FUN = PROC (REAL) REAL;
PROC pow = (FUN f, INT n, REAL x) REAL: f(x) ** n;
OP ** = (FUN f, INT n) FUN: pow (f, n, );
# Example: sin (3 x) = 3 sin (x) - 4 sin^3 (x) (follows from DeMoivre's theorem) #
REAL x = read real;
print ((new line, sin (3 * x), 3 * sin (x) - 4 * (sin... |
http://rosettacode.org/wiki/Currying | Currying |
This page uses content from Wikipedia. The original article was at Currying. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
Task
Create a simple demonstrative example of Currying in a specific la... | #AppleScript | AppleScript | -- curry :: (Script|Handler) -> Script
on curry(f)
script
on |λ|(a)
script
on |λ|(b)
|λ|(a, b) of mReturn(f)
end |λ|
end script
end |λ|
end script
end curry
-- TESTS --------------------------------------------------... |
http://rosettacode.org/wiki/Cyclotomic_polynomial | Cyclotomic polynomial | The nth Cyclotomic polynomial, for any positive integer n, is the unique irreducible polynomial of largest degree with integer coefficients that is a divisor of x^n − 1, and is not a divisor of x^k − 1 for any k < n.
Task
Find and print the first 30 cyclotomic polynomials.
Find and print the order of the first 10... | #Haskell | Haskell | import Data.List
import Data.Numbers.Primes (primeFactors)
negateVar p = zipWith (*) p $ reverse $ take (length p) $ cycle [1,-1]
lift p 1 = p
lift p n = intercalate (replicate (n-1) 0) (pure <$> p)
shortDiv :: [Integer] -> [Integer] -> [Integer]
shortDiv p1 (_:p2) = unfoldr go (length p1 - length p2, p1)
where... |
http://rosettacode.org/wiki/Cut_a_rectangle | Cut a rectangle | A given rectangle is made from m × n squares. If m and n are not both odd, then it is possible to cut a path through the rectangle along the square edges such that the rectangle splits into two connected pieces with the same shape (after rotating one of the pieces by 180°). All such paths for 2 × 2 and 4 × 3 rectangles... | #Java | Java | import java.util.*;
public class CutRectangle {
private static int[][] dirs = {{0, -1}, {-1, 0}, {0, 1}, {1, 0}};
public static void main(String[] args) {
cutRectangle(2, 2);
cutRectangle(4, 3);
}
static void cutRectangle(int w, int h) {
if (w % 2 == 1 && h % 2 == 1)
... |
http://rosettacode.org/wiki/Cyclops_numbers | Cyclops numbers | A cyclops number is a number with an odd number of digits that has a zero in the center, but nowhere else. They are named so in tribute to the one eyed giants Cyclops from Greek mythology.
Cyclops numbers can be found in any base. This task strictly is looking for cyclops numbers in base 10.
There are many different ... | #XPL0 | XPL0 | func IsCyclops(N); \Return 'true' if N is a cyclops number
int N, I, J, K;
char A(9);
[I:= 0; \parse digits into array A
repeat N:= N/10;
A(I):= rem(0);
I:= I+1;
until N=0;
if (I&1) = 0 then return false; \must have odd number of digits
K:= I>>1;
if A(K) # 0 then return false; ... |
http://rosettacode.org/wiki/Date_manipulation | Date manipulation | Task
Given the date string "March 7 2009 7:30pm EST",
output the time 12 hours later in any human-readable format.
As extra credit, display the resulting time in a time zone different from your own.
| #Euphoria | Euphoria |
--Date Manipulation task from Rosetta Code wiki
--User:Lnettnay
include std/datetime.e
datetime dt
dt = new(2009, 3, 7, 19, 30)
dt = add(dt, 12, HOURS)
printf(1, "%s EST\n", {format(dt, "%B %d %Y %I:%M %p")})
|
http://rosettacode.org/wiki/Date_manipulation | Date manipulation | Task
Given the date string "March 7 2009 7:30pm EST",
output the time 12 hours later in any human-readable format.
As extra credit, display the resulting time in a time zone different from your own.
| #F.23 | F# | open System
let main() =
let est = TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time")
let date = DateTime.Parse("March 7 2009 7:30pm -5" )
let date_est = TimeZoneInfo.ConvertTime( date, est)
let date2 = date.AddHours(12.0)
let date2_est = TimeZoneInfo.ConvertTime( date2, est)
Console.WriteLine... |
http://rosettacode.org/wiki/Deal_cards_for_FreeCell | Deal cards for FreeCell | Free Cell is the solitaire card game that Paul Alfille introduced to the PLATO system in 1978. Jim Horne, at Microsoft, changed the name to FreeCell and reimplemented the game for DOS, then Windows.
This version introduced 32000 numbered deals. (The FreeCell FAQ tells this history.)
As the game became popular, Jim H... | #PicoLisp | PicoLisp | (setq *MsSeed 11982)
(de msRand ()
(>> 16
(setq *MsSeed
(& (+ 2531011 (* 214013 *MsSeed)) `(dec (** 2 31))) ) ) )
(let L
(make
(for Num (range 13 1)
(for Suit '((32 . "♠") (31 . "♥") (31 . "♦") (32 . "♣"))
(link (cons (get '`(chop "A23456789TJQK") Num) Suit)) ) ) )
... |
http://rosettacode.org/wiki/Deal_cards_for_FreeCell | Deal cards for FreeCell | Free Cell is the solitaire card game that Paul Alfille introduced to the PLATO system in 1978. Jim Horne, at Microsoft, changed the name to FreeCell and reimplemented the game for DOS, then Windows.
This version introduced 32000 numbered deals. (The FreeCell FAQ tells this history.)
As the game became popular, Jim H... | #PureBasic | PureBasic | #MaxCardNum = 51 ;zero-based count of cards in a deck
Global deckSize
Global Dim cards(#MaxCardNum) ;card with highest index is at the top of deck
Procedure RNG(seed.q = -1)
Static state.q
If seed >= 0
state = seed
Else
state = (state * 214013 + 2531011) % (1 << 31)
ProcedureReturn state >> 16
E... |
http://rosettacode.org/wiki/Define_a_primitive_data_type | Define a primitive data type | Demonstrate how to define a type that behaves like an integer but has a lowest valid value of 1 and a highest valid value of 10. Include all bounds checking you need to write, or explain how the compiler or interpreter creates those bounds checks for you.
| #Visual_FoxPro | Visual FoxPro | LOCAL o As BoundedInt
o = NEWOBJECT("BoundedInt")
DO WHILE NOT o.lHasError
o.nValue = o.nValue + 2 && will get as far as 9.
? o.nValue
ENDDO
DEFINE CLASS BoundedInt As Custom
nValue = 1 && default value
lHasError = .F.
PROCEDURE nValue_Assign(tnValue)
*!* This method will check the parameter and if
*!* it i... |
http://rosettacode.org/wiki/Define_a_primitive_data_type | Define a primitive data type | Demonstrate how to define a type that behaves like an integer but has a lowest valid value of 1 and a highest valid value of 10. Include all bounds checking you need to write, or explain how the compiler or interpreter creates those bounds checks for you.
| #Wren | Wren | class TinyInt {
construct new(n) {
if (!(n is Num && n.isInteger && n >= 1 && n <= 10)) {
Fiber.abort("Argument must be an integer between 1 and 10.")
}
_n = n
}
n { _n }
+(other) { TinyInt.new(_n + other.n) }
-(other) { TinyInt.new(_n - other.n) }
*(other... |
http://rosettacode.org/wiki/Day_of_the_week | Day of the week | A company decides that whenever Xmas falls on a Sunday they will give their workers all extra paid holidays so that, together with any public holidays, workers will not have to work the following week (between the 25th of December and the first of January).
Task
In what years between 2008 and 2121 will the 25th of ... | #CoffeeScript | CoffeeScript | december = 11 # gotta love Date APIs :)
sunday = 0
for year in [2008..2121]
xmas = new Date year, december, 25
console.log year if xmas.getDay() is sunday |
http://rosettacode.org/wiki/CUSIP | CUSIP |
This page uses content from Wikipedia. The original article was at CUSIP. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
A CUSIP is a nine-character alphanumeric code that identifies a North A... | #C.23 | C# | using System;
using System.Collections.Generic;
namespace CUSIP {
class Program {
static bool IsCusip(string s) {
if (s.Length != 9) return false;
int sum = 0;
for (int i = 0; i <= 7; i++) {
char c = s[i];
int v;
if (c >... |
http://rosettacode.org/wiki/Date_format | Date format | This task has been clarified. Its programming examples are in need of review to ensure that they still fit the requirements of the task.
Task
Display the current date in the formats of:
2007-11-23 and
Friday, November 23, 2007
| #AWK | AWK | $ awk 'BEGIN{t=systime();print strftime("%Y-%m-%d",t)"\n"strftime("%A, %B %d, %Y",t)}'
2009-05-15
Friday, May 15, 2009 |
http://rosettacode.org/wiki/Date_format | Date format | This task has been clarified. Its programming examples are in need of review to ensure that they still fit the requirements of the task.
Task
Display the current date in the formats of:
2007-11-23 and
Friday, November 23, 2007
| #BaCon | BaCon | ' Date format
n = NOW
PRINT YEAR(n), MONTH(n), DAY(n) FORMAT "%ld-%02ld-%02ld\n"
PRINT WEEKDAY$(n), MONTH$(n), DAY(n), YEAR(n) FORMAT "%s, %s %02ld, %ld\n" |
http://rosettacode.org/wiki/Cullen_and_Woodall_numbers | Cullen and Woodall numbers | A Cullen number is a number of the form n × 2n + 1 where n is a natural number.
A Woodall number is very similar. It is a number of the form n × 2n - 1 where n is a natural number.
So for each n the associated Cullen number and Woodall number differ by 2.
Woodall numbers are sometimes referred to as Riesel numbers o... | #Arturo | Arturo | cullen: function [n]->
inc n * 2^n
woodall: function [n]->
dec n * 2^n
print ["First 20 cullen numbers:" join.with:" " to [:string] map 1..20 => cullen]
print ["First 20 woodall numbers:" join.with:" " to [:string] map 1..20 => woodall] |
http://rosettacode.org/wiki/Cullen_and_Woodall_numbers | Cullen and Woodall numbers | A Cullen number is a number of the form n × 2n + 1 where n is a natural number.
A Woodall number is very similar. It is a number of the form n × 2n - 1 where n is a natural number.
So for each n the associated Cullen number and Woodall number differ by 2.
Woodall numbers are sometimes referred to as Riesel numbers o... | #AWK | AWK |
# syntax: GAWK -f CULLEN_AND_WOODALL_NUMBERS.AWK
BEGIN {
start = 1
stop = 20
printf("Cullen %d-%d:",start,stop)
for (n=start; n<=stop; n++) {
printf(" %d",n*(2^n)+1)
}
printf("\n")
printf("Woodall %d-%d:",start,stop)
for (n=start; n<=stop; n++) {
printf(" %d",n*(2^n)-1)
... |
http://rosettacode.org/wiki/Cullen_and_Woodall_numbers | Cullen and Woodall numbers | A Cullen number is a number of the form n × 2n + 1 where n is a natural number.
A Woodall number is very similar. It is a number of the form n × 2n - 1 where n is a natural number.
So for each n the associated Cullen number and Woodall number differ by 2.
Woodall numbers are sometimes referred to as Riesel numbers o... | #BASIC | BASIC | print "First 20 Cullen numbers:"
for n = 1 to 20
num = n * (2^n)+1
print int(num); " ";
next
print : print
print "First 20 Woodall numbers:"
for n = 1 to 20
num = n * (2^n)-1
print int(num); " ";
next n
end |
http://rosettacode.org/wiki/Damm_algorithm | Damm algorithm | The Damm algorithm is a checksum algorithm which detects all single digit errors and adjacent transposition errors.
The algorithm is named after H. Michael Damm.
Task
Verify the checksum, stored as last digit of an input.
| #C.23 | C# | using System;
namespace DammAlgorithm {
class Program {
static int[,] table = {
{0, 3, 1, 7, 5, 9, 8, 6, 4, 2},
{7, 0, 9, 2, 1, 5, 4, 8, 6, 3},
{4, 2, 0, 6, 8, 7, 1, 3, 5, 9},
{1, 7, 5, 0, 9, 8, 3, 4, 2, 6},
{6, 1, 2, 3, 0, 4, 5, 9, 7, 8},
... |
http://rosettacode.org/wiki/Currying | Currying |
This page uses content from Wikipedia. The original article was at Currying. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
Task
Create a simple demonstrative example of Currying in a specific la... | #BQN | BQN | Plus3 ← 3⊸+
Plus3_1 ← +⟜3
•Show Plus3 1
•Show Plus3_1 1 |
http://rosettacode.org/wiki/Currying | Currying |
This page uses content from Wikipedia. The original article was at Currying. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
Task
Create a simple demonstrative example of Currying in a specific la... | #C | C |
#include<stdarg.h>
#include<stdio.h>
long int factorial(int n){
if(n>1)
return n*factorial(n-1);
return 1;
}
long int sumOfFactorials(int num,...){
va_list vaList;
long int sum = 0;
va_start(vaList,num);
while(num--)
sum += factorial(va_arg(vaList,int));
va_end(vaList);
return sum;
}
int mai... |
http://rosettacode.org/wiki/Cyclotomic_polynomial | Cyclotomic polynomial | The nth Cyclotomic polynomial, for any positive integer n, is the unique irreducible polynomial of largest degree with integer coefficients that is a divisor of x^n − 1, and is not a divisor of x^k − 1 for any k < n.
Task
Find and print the first 30 cyclotomic polynomials.
Find and print the order of the first 10... | #J | J | cyclo=: {{<.-:1+(++) p. 1;^0j2p1* y%~1+I.1=y+.1+i.y}} |
http://rosettacode.org/wiki/Cut_a_rectangle | Cut a rectangle | A given rectangle is made from m × n squares. If m and n are not both odd, then it is possible to cut a path through the rectangle along the square edges such that the rectangle splits into two connected pieces with the same shape (after rotating one of the pieces by 180°). All such paths for 2 × 2 and 4 × 3 rectangles... | #Julia | Julia |
const count = [0]
const dir = [[0, -1], [-1, 0], [0, 1], [1, 0]]
function walk(y, x, h, w, grid, len, next)
if y == 0 || y == h || x == 0 || x == w
count[1] += 2
return
end
t = y * (w + 1) + x
grid[t + 1] += UInt8(1)
grid[len - t + 1] += UInt8(1)
for i in 1:4
if grid[... |
http://rosettacode.org/wiki/Date_manipulation | Date manipulation | Task
Given the date string "March 7 2009 7:30pm EST",
output the time 12 hours later in any human-readable format.
As extra credit, display the resulting time in a time zone different from your own.
| #Factor | Factor | USING: calendar calendar.english calendar.format calendar.parser
combinators io kernel math math.parser sequences splitting
unicode ;
IN: rosetta-code.date-manipulation
! e.g. "7:30pm" -> 19 30
: parse-hm ( str -- hours minutes )
":" split first2 [ digit? ] partition
[ [ string>number ] bi@ ] dip "pm" = [ [ 1... |
http://rosettacode.org/wiki/Date_manipulation | Date manipulation | Task
Given the date string "March 7 2009 7:30pm EST",
output the time 12 hours later in any human-readable format.
As extra credit, display the resulting time in a time zone different from your own.
| #Fantom | Fantom |
fansh> d := DateTime.fromLocale("March 7 2009 7:30pm EST", "MMMM D YYYY h:mmaa zzz")
fansh> d
2009-03-07T19:30:00-05:00 EST
fansh> d + 12hr
2009-03-08T07:30:00-05:00 EST
fansh> (d+12hr).toTimeZone(TimeZone("London")) // the extra credit!
2009-03-08T12:30:00Z London
|
http://rosettacode.org/wiki/Deal_cards_for_FreeCell | Deal cards for FreeCell | Free Cell is the solitaire card game that Paul Alfille introduced to the PLATO system in 1978. Jim Horne, at Microsoft, changed the name to FreeCell and reimplemented the game for DOS, then Windows.
This version introduced 32000 numbered deals. (The FreeCell FAQ tells this history.)
As the game became popular, Jim H... | #Python | Python |
def randomGenerator(seed=1):
max_int32 = (1 << 31) - 1
seed = seed & max_int32
while True:
seed = (seed * 214013 + 2531011) & max_int32
yield seed >> 16
def deal(seed):
nc = 52
cards = list(range(nc - 1, -1, -1))
rnd = randomGenerator(seed)
for i, r in zip(range(nc), ... |
http://rosettacode.org/wiki/Day_of_the_week | Day of the week | A company decides that whenever Xmas falls on a Sunday they will give their workers all extra paid holidays so that, together with any public holidays, workers will not have to work the following week (between the 25th of December and the first of January).
Task
In what years between 2008 and 2121 will the 25th of ... | #ColdFusion | ColdFusion |
<cfloop from = "2008" to = "2121" index = "i">
<cfset myDate = createDate(i, 12, 25) />
<cfif dayOfWeek(myDate) eq 1>
December 25th falls on a Sunday in <cfoutput>#i#</cfoutput><br />
</cfif>
</cfloop>
|
http://rosettacode.org/wiki/Day_of_the_week | Day of the week | A company decides that whenever Xmas falls on a Sunday they will give their workers all extra paid holidays so that, together with any public holidays, workers will not have to work the following week (between the 25th of December and the first of January).
Task
In what years between 2008 and 2121 will the 25th of ... | #Common_Lisp | Common Lisp | (loop for year from 2008 upto 2121
when (= 6 (multiple-value-bind
(second minute hour date month year day-of-week dst-p tz)
(decode-universal-time (encode-universal-time 0 0 0 25 12 year))
(declare (ignore second minute hour date month year dst-p tz))
... |
http://rosettacode.org/wiki/CUSIP | CUSIP |
This page uses content from Wikipedia. The original article was at CUSIP. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
A CUSIP is a nine-character alphanumeric code that identifies a North A... | #C.2B.2B | C++ | #include <iostream>
#include <vector>
bool isCusip(const std::string& s) {
if (s.size() != 9) return false;
int sum = 0;
for (int i = 0; i <= 7; ++i) {
char c = s[i];
int v;
if ('0' <= c && c <= '9') {
v = c - '0';
} else if ('A' <= c && c <= 'Z') {
... |
http://rosettacode.org/wiki/Cumulative_standard_deviation | Cumulative standard deviation | Task[edit]
Write a stateful function, class, generator or co-routine that takes a series of floating point numbers, one at a time, and returns the running standard deviation of the series.
The task implementation should use the most natural programming style of those listed for the function in the implementation langu... | #11l | 11l | T SD
sum = 0.0
sum2 = 0.0
n = 0.0
F ()(x)
.sum += x
.sum2 += x ^ 2
.n += 1.0
R sqrt(.sum2 / .n - (.sum / .n) ^ 2)
V sd_inst = SD()
L(value) [2, 4, 4, 4, 5, 5, 7, 9]
print(value‘ ’sd_inst(value)) |
http://rosettacode.org/wiki/Date_format | Date format | This task has been clarified. Its programming examples are in need of review to ensure that they still fit the requirements of the task.
Task
Display the current date in the formats of:
2007-11-23 and
Friday, November 23, 2007
| #BASIC | BASIC | #include "vbcompat.bi"
DIM today As Double = Now()
PRINT Format(today, "yyyy-mm-dd")
PRINT Format(today, "dddd, mmmm d, yyyy") |
http://rosettacode.org/wiki/Date_format | Date format | This task has been clarified. Its programming examples are in need of review to ensure that they still fit the requirements of the task.
Task
Display the current date in the formats of:
2007-11-23 and
Friday, November 23, 2007
| #Batch_File | Batch File |
@echo off
setlocal enabledelayedexpansion
:: Define arrays of days/months we'll need
set daynames=Monday Tuesday Wednesday Thursday Friday Saturday Sunday
set monthnames=January February March April May June July August September October November December
:: Separate the output of the 'date /t' command (outputs in ... |
http://rosettacode.org/wiki/Cullen_and_Woodall_numbers | Cullen and Woodall numbers | A Cullen number is a number of the form n × 2n + 1 where n is a natural number.
A Woodall number is very similar. It is a number of the form n × 2n - 1 where n is a natural number.
So for each n the associated Cullen number and Woodall number differ by 2.
Woodall numbers are sometimes referred to as Riesel numbers o... | #F.23 | F# |
// Cullen and Woodall numbers. Nigel Galloway: January 14th., 2022
let Cullen,Woodall=let fG n (g:int)=(bigint g)*2I**g+n in fG 1I, fG -1I
Seq.initInfinite((+)1>>Cullen)|>Seq.take 20|>Seq.iter(printf "%A "); printfn ""
Seq.initInfinite((+)1>>Woodall)|>Seq.take 20|>Seq.iter(printf "%A "); printfn ""
Seq.initInfinite((... |
http://rosettacode.org/wiki/Cullen_and_Woodall_numbers | Cullen and Woodall numbers | A Cullen number is a number of the form n × 2n + 1 where n is a natural number.
A Woodall number is very similar. It is a number of the form n × 2n - 1 where n is a natural number.
So for each n the associated Cullen number and Woodall number differ by 2.
Woodall numbers are sometimes referred to as Riesel numbers o... | #Factor | Factor | USING: arrays kernel math math.vectors prettyprint ranges
sequences ;
20 [1..b] [ dup 2^ * 1 + ] map dup 2 v-n 2array simple-table. |
http://rosettacode.org/wiki/Cullen_and_Woodall_numbers | Cullen and Woodall numbers | A Cullen number is a number of the form n × 2n + 1 where n is a natural number.
A Woodall number is very similar. It is a number of the form n × 2n - 1 where n is a natural number.
So for each n the associated Cullen number and Woodall number differ by 2.
Woodall numbers are sometimes referred to as Riesel numbers o... | #Go | Go | package main
import (
"fmt"
big "github.com/ncw/gmp"
)
func cullen(n uint) *big.Int {
one := big.NewInt(1)
bn := big.NewInt(int64(n))
res := new(big.Int).Lsh(one, n)
res.Mul(res, bn)
return res.Add(res, one)
}
func woodall(n uint) *big.Int {
res := cullen(n)
return res.Sub(res,... |
http://rosettacode.org/wiki/Damm_algorithm | Damm algorithm | The Damm algorithm is a checksum algorithm which detects all single digit errors and adjacent transposition errors.
The algorithm is named after H. Michael Damm.
Task
Verify the checksum, stored as last digit of an input.
| #C.2B.2B | C++ | #include <sstream>
const int TABLE[][10] = {
{0, 3, 1, 7, 5, 9, 8, 6, 4, 2},
{7, 0, 9, 2, 1, 5, 4, 8, 6, 3},
{4, 2, 0, 6, 8, 7, 1, 3, 5, 9},
{1, 7, 5, 0, 9, 8, 3, 4, 2, 6},
{6, 1, 2, 3, 0, 4, 5, 9, 7, 8},
{3, 6, 7, 4, 2, 0, 9, 5, 8, 1},
{5, 8, 6, 9, 7, 2, 0, 1, 3, 4},
{8, 9, 4, 5, 3, 6, 2, 0, 1, 7},
{9, 4, 3... |
http://rosettacode.org/wiki/Currying | Currying |
This page uses content from Wikipedia. The original article was at Currying. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
Task
Create a simple demonstrative example of Currying in a specific la... | #C.23 | C# | public delegate int Plus(int y);
public delegate Plus CurriedPlus(int x);
public static CurriedPlus plus =
delegate(int x) {return delegate(int y) {return x + y;};};
static void Main()
{
int sum = plus(3)(4); // sum = 7
int sum2= plus(2)(plus(3)(4)) // sum2 = 9
} |
http://rosettacode.org/wiki/Currying | Currying |
This page uses content from Wikipedia. The original article was at Currying. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
Task
Create a simple demonstrative example of Currying in a specific la... | #C.2B.2B | C++ | shared void run() {
function divide(Integer x, Integer y) => x / y;
value partsOf120 = curry(divide)(120);
print("half of 120 is ``partsOf120(2)``
a third is ``partsOf120(3)``
and a quarter is ``partsOf120(4)``");
} |
http://rosettacode.org/wiki/Cyclotomic_polynomial | Cyclotomic polynomial | The nth Cyclotomic polynomial, for any positive integer n, is the unique irreducible polynomial of largest degree with integer coefficients that is a divisor of x^n − 1, and is not a divisor of x^k − 1 for any k < n.
Task
Find and print the first 30 cyclotomic polynomials.
Find and print the order of the first 10... | #Java | Java |
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
public class CyclotomicPolynomial {
@SuppressWarnings("unused")
private static int divisions = 0;
private static int a... |
http://rosettacode.org/wiki/Cut_a_rectangle | Cut a rectangle | A given rectangle is made from m × n squares. If m and n are not both odd, then it is possible to cut a path through the rectangle along the square edges such that the rectangle splits into two connected pieces with the same shape (after rotating one of the pieces by 180°). All such paths for 2 × 2 and 4 × 3 rectangles... | #Kotlin | Kotlin | // version 1.0.6
object RectangleCutter {
private var w: Int = 0
private var h: Int = 0
private var len: Int = 0
private var cnt: Long = 0
private lateinit var grid: ByteArray
private val next = IntArray(4)
private val dir = arrayOf(
intArrayOf(0, -1),
intArrayOf(-1, 0),
... |
http://rosettacode.org/wiki/Date_manipulation | Date manipulation | Task
Given the date string "March 7 2009 7:30pm EST",
output the time 12 hours later in any human-readable format.
As extra credit, display the resulting time in a time zone different from your own.
| #FreeBASIC | FreeBASIC | ' FB 1.05.0 Win64
#include "vbcompat.bi"
Sub split (s As String, sepList As String, result() As String, removeEmpty As Boolean = False)
If s = "" OrElse sepList = "" Then
Redim result(0)
result(0) = s
Return
End If
Dim As Integer i, j, count = 0, empty = 0, length
Dim As Integer position(Len... |
http://rosettacode.org/wiki/Deal_cards_for_FreeCell | Deal cards for FreeCell | Free Cell is the solitaire card game that Paul Alfille introduced to the PLATO system in 1978. Jim Horne, at Microsoft, changed the name to FreeCell and reimplemented the game for DOS, then Windows.
This version introduced 32000 numbered deals. (The FreeCell FAQ tells this history.)
As the game became popular, Jim H... | #R | R | ## Linear congruential generator code not original -
## copied from
## http://www.rosettacode.org/wiki/Linear_congruential_generator#R
## altered to allow seed as an argument
library(gmp) # for big integers
rand_MS <- function(n = 1, seed = 1) {
a <- as.bigz(214013)
c <- as.bigz(2531011)
m <- as.bigz(2^31)
... |
http://rosettacode.org/wiki/Deal_cards_for_FreeCell | Deal cards for FreeCell | Free Cell is the solitaire card game that Paul Alfille introduced to the PLATO system in 1978. Jim Horne, at Microsoft, changed the name to FreeCell and reimplemented the game for DOS, then Windows.
This version introduced 32000 numbered deals. (The FreeCell FAQ tells this history.)
As the game became popular, Jim H... | #Racket | Racket | #lang racket
(module Linear_congruential_generator racket
;; taken from http://rosettacode.org/wiki/Linear_congruential_generator#Racket
;; w/o BSD generator
(require racket/generator)
(provide ms-rand)
(define (ms-update state_n)
(modulo (+ (* 214013 state_n) 2531011)
(expt 2 31)))
(d... |
http://rosettacode.org/wiki/Day_of_the_week | Day of the week | A company decides that whenever Xmas falls on a Sunday they will give their workers all extra paid holidays so that, together with any public holidays, workers will not have to work the following week (between the 25th of December and the first of January).
Task
In what years between 2008 and 2121 will the 25th of ... | #Component_Pascal | Component Pascal |
MODULE DayOfWeek;
IMPORT DevCommanders, TextMappers, Dates, StdLog;
PROCEDURE XmastOnSun(s,e: INTEGER);
VAR
i: INTEGER;
d: Dates.Date;
BEGIN
i := s;d.day := 25;d.month := 12;
WHILE i < e DO
d.year := i;
IF Dates.DayOfWeek(d) = Dates.sunday THEN
StdLog.Int(i);StdLog.Ln
END;
INC(i)
END
END XmastOnSun;... |
http://rosettacode.org/wiki/CUSIP | CUSIP |
This page uses content from Wikipedia. The original article was at CUSIP. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
A CUSIP is a nine-character alphanumeric code that identifies a North A... | #Cach.C3.A9_ObjectScript | Caché ObjectScript | Class Utils.Check [ Abstract ]
{
ClassMethod CUSIP(x As %String) As %Boolean
{
SET x=$TRANSLATE(x," ")
// https://leiq.bus.umich.edu/res_codes_cusip.htm
IF x'?8UNP1N QUIT 0
SET cd=$EXTRACT(x,*), x=$EXTRACT(x,1,*-1), t=0
FOR i=1:1:$LENGTH(x) {
SET n=$EXTRACT(x,i)
IF n'=+n SET n=$CASE(n,"*":36,"@":37,"#":38,:$... |
http://rosettacode.org/wiki/CUSIP | CUSIP |
This page uses content from Wikipedia. The original article was at CUSIP. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
A CUSIP is a nine-character alphanumeric code that identifies a North A... | #Clojure | Clojure |
(defn- char->value
"convert the given char c to a value used to calculate the cusip check sum"
[c]
(let [int-char (int c)]
(cond
(and (>= int-char (int \0)) (<= int-char (int \9))) (- int-char 48)
(and (>= int-char (int \A)) (<= int-char (int \Z))) (- int-char 55)
(= c \*) 36
(= c \@... |
http://rosettacode.org/wiki/Cumulative_standard_deviation | Cumulative standard deviation | Task[edit]
Write a stateful function, class, generator or co-routine that takes a series of floating point numbers, one at a time, and returns the running standard deviation of the series.
The task implementation should use the most natural programming style of those listed for the function in the implementation langu... | #360_Assembly | 360 Assembly | ******** Standard deviation of a population
STDDEV CSECT
USING STDDEV,R13
SAVEAREA B STM-SAVEAREA(R15)
DC 17F'0'
DC CL8'STDDEV'
STM STM R14,R12,12(R13)
ST R13,4(R15)
ST R15,8(R13)
LR R13,R15
SR R8,R8 s=0
... |
http://rosettacode.org/wiki/Date_format | Date format | This task has been clarified. Its programming examples are in need of review to ensure that they still fit the requirements of the task.
Task
Display the current date in the formats of:
2007-11-23 and
Friday, November 23, 2007
| #BBC_BASIC | BBC BASIC | daysow$ = "Sunday Monday Tuesday Wednesday Thursday Friday Saturday"
months$ = "January February March April May June " + \
\ "July August September October November December"
date$ = TIME$
dayow% = (INSTR(daysow$, MID$(date$,1,3)) + 9... |
http://rosettacode.org/wiki/Date_format | Date format | This task has been clarified. Its programming examples are in need of review to ensure that they still fit the requirements of the task.
Task
Display the current date in the formats of:
2007-11-23 and
Friday, November 23, 2007
| #Beads | Beads | // time_to_str(format, time, city, lang)
// format directives:
// [sun] - abbreviated weekday, e.g. Sun
// [sunday] - full weekday name, e.g. Sunday
// [jan] - abbrev month
// [january] - full month
// [day] - day of the month 1, 2, ..31
// [day2] - day of the month as tw... |
http://rosettacode.org/wiki/Cullen_and_Woodall_numbers | Cullen and Woodall numbers | A Cullen number is a number of the form n × 2n + 1 where n is a natural number.
A Woodall number is very similar. It is a number of the form n × 2n - 1 where n is a natural number.
So for each n the associated Cullen number and Woodall number differ by 2.
Woodall numbers are sometimes referred to as Riesel numbers o... | #Haskell | Haskell | findCullen :: Int -> Integer
findCullen n = toInteger ( n * 2 ^ n + 1 )
cullens :: [Integer]
cullens = map findCullen [1 .. 20]
woodalls :: [Integer]
woodalls = map (\i -> i - 2 ) cullens
main :: IO ( )
main = do
putStrLn "First 20 Cullen numbers:"
print cullens
putStrLn "First 20 Woodall numbers:"
pr... |
http://rosettacode.org/wiki/Cullen_and_Woodall_numbers | Cullen and Woodall numbers | A Cullen number is a number of the form n × 2n + 1 where n is a natural number.
A Woodall number is very similar. It is a number of the form n × 2n - 1 where n is a natural number.
So for each n the associated Cullen number and Woodall number differ by 2.
Woodall numbers are sometimes referred to as Riesel numbers o... | #Julia | Julia | using Lazy
using Primes
cullen(n, two = BigInt(2)) = n * two^n + 1
woodall(n, two = BigInt(2)) = n * two^n - 1
primecullens = @>> Lazy.range() filter(n -> isprime(cullen(n)))
primewoodalls = @>> Lazy.range() filter(n -> isprime(woodall(n)))
println("First 20 Cullen numbers: ( n × 2**n + 1)\n", [cullen(n, 2) for n i... |
http://rosettacode.org/wiki/Cullen_and_Woodall_numbers | Cullen and Woodall numbers | A Cullen number is a number of the form n × 2n + 1 where n is a natural number.
A Woodall number is very similar. It is a number of the form n × 2n - 1 where n is a natural number.
So for each n the associated Cullen number and Woodall number differ by 2.
Woodall numbers are sometimes referred to as Riesel numbers o... | #Lua | Lua | function T(t) return setmetatable(t, {__index=table}) end
table.range = function(t,n) local s=T{} for i=1,n do s[i]=i end return s end
table.map = function(t,f) local s=T{} for i=1,#t do s[i]=f(t[i]) end return s end
function cullen(n) return (n<<n)+1 end
print("First 20 Cullen numbers:")
print(T{}:range(20):map(cull... |
http://rosettacode.org/wiki/Damm_algorithm | Damm algorithm | The Damm algorithm is a checksum algorithm which detects all single digit errors and adjacent transposition errors.
The algorithm is named after H. Michael Damm.
Task
Verify the checksum, stored as last digit of an input.
| #Cach.C3.A9_ObjectScript | Caché ObjectScript | Class Utils.Check [ Abstract ]
{
ClassMethod Damm(num As %Integer, mode As %Integer = 1) As %Integer
{
TRY {
I mode=0 RETURN ..Damm(num,2)=0
S res=0, str=num
S table=[
[0, 3, 1, 7, 5, 9, 8, 6, 4, 2],
[7, 0, 9, 2, 1, 5, 4, 8, 6, 3],
[4, 2, 0, 6, 8, 7, 1, 3, 5, 9],
[1, 7, 5, 0, 9, 8, 3, 4, 2, 6],
... |
http://rosettacode.org/wiki/Damm_algorithm | Damm algorithm | The Damm algorithm is a checksum algorithm which detects all single digit errors and adjacent transposition errors.
The algorithm is named after H. Michael Damm.
Task
Verify the checksum, stored as last digit of an input.
| #Clojure | Clojure | (def tbl [[0 3 1 7 5 9 8 6 4 2]
[7 0 9 2 1 5 4 8 6 3]
[4 2 0 6 8 7 1 3 5 9]
[1 7 5 0 9 8 3 4 2 6]
[6 1 2 3 0 4 5 9 7 8]
[3 6 7 4 2 0 9 5 8 1]
[5 8 6 9 7 2 0 1 3 4]
[8 9 4 5 3 6 2 0 1 7]
[9 4 3 8 6 1 7 2 0 5]
[2 5 8 1 4 3 6 7 9 0]]... |
http://rosettacode.org/wiki/Currency | Currency | Task
Show how to represent currency in a simple example, using a data type that represent exact values of dollars and cents.
Note
The IEEE 754 binary floating point representations of numbers like 2.86 and .0765 are not exact.
For this example, data will be two items with prices in dollars and cents, a qu... | #11l | 11l | F currency(units, subunits)
R BigInt(units) * 100 + subunits
F currency_from_str(s)
V (units, subunits) = s.split(‘.’)
R BigInt(units) * 100 + Int(subunits)
F percentage(a, num, denom)
R (a * num * 10 I/ denom + 5) I/ 10
F to_str(c)
R String(c I/ 100)‘’‘.#02’.format(c % 100)
V hamburgers = curren... |
http://rosettacode.org/wiki/Currying | Currying |
This page uses content from Wikipedia. The original article was at Currying. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
Task
Create a simple demonstrative example of Currying in a specific la... | #Ceylon | Ceylon | shared void run() {
function divide(Integer x, Integer y) => x / y;
value partsOf120 = curry(divide)(120);
print("half of 120 is ``partsOf120(2)``
a third is ``partsOf120(3)``
and a quarter is ``partsOf120(4)``");
} |
http://rosettacode.org/wiki/Currying | Currying |
This page uses content from Wikipedia. The original article was at Currying. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
Task
Create a simple demonstrative example of Currying in a specific la... | #Clojure | Clojure | (def plus-a-hundred (partial + 100))
(assert (=
(plus-a-hundred 1)
101))
|
http://rosettacode.org/wiki/Create_an_object_at_a_given_address | Create an object at a given address |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #6502_Assembly | 6502 Assembly | sta $1900
stx $1901
sty $1902 |
http://rosettacode.org/wiki/Cyclotomic_polynomial | Cyclotomic polynomial | The nth Cyclotomic polynomial, for any positive integer n, is the unique irreducible polynomial of largest degree with integer coefficients that is a divisor of x^n − 1, and is not a divisor of x^k − 1 for any k < n.
Task
Find and print the first 30 cyclotomic polynomials.
Find and print the order of the first 10... | #Julia | Julia | using Primes, Polynomials
# memoize cache for recursive calls
const cyclotomics = Dict([1 => Poly([big"-1", big"1"]), 2 => Poly([big"1", big"1"])])
# get all integer divisors of an integer, except itself
function divisors(n::Integer)
f = [one(n)]
for (p, e) in factor(n)
f = reduce(vcat, [f * p^j for... |
http://rosettacode.org/wiki/Cut_a_rectangle | Cut a rectangle | A given rectangle is made from m × n squares. If m and n are not both odd, then it is possible to cut a path through the rectangle along the square edges such that the rectangle splits into two connected pieces with the same shape (after rotating one of the pieces by 180°). All such paths for 2 × 2 and 4 × 3 rectangles... | #Lua | Lua | function array1D(w, d)
local t = {}
for i=1,w do
table.insert(t, d)
end
return t
end
function array2D(h, w, d)
local t = {}
for i=1,h do
table.insert(t, array1D(w, d))
end
return t
end
function push(s, v)
s[#s + 1] = v
end
function pop(s)
return table.remove... |
http://rosettacode.org/wiki/Date_manipulation | Date manipulation | Task
Given the date string "March 7 2009 7:30pm EST",
output the time 12 hours later in any human-readable format.
As extra credit, display the resulting time in a time zone different from your own.
| #Frink | Frink |
### MMM dd yyyy h:mma ###
d = parseDate["March 7 2009 7:30pm EST"]
println[d + 12 hours -> Eastern]
println[d + 12 hours -> Switzerland] // Extra credit
|
http://rosettacode.org/wiki/Date_manipulation | Date manipulation | Task
Given the date string "March 7 2009 7:30pm EST",
output the time 12 hours later in any human-readable format.
As extra credit, display the resulting time in a time zone different from your own.
| #FunL | FunL | import time.{TimeZone, Date, SimpleDateFormat, Hour}
pattern = SimpleDateFormat( 'MMMM d yyyy h:mma zzz' )
date = pattern.parse( 'March 7 2009 7:30pm EST' )
later = Date( date.getTime() + 12 Hour )
println( pattern.format(later) ) // Eastern Daylight Time
pattern.setTimeZone( TimeZone.getTimeZone('America/Los_Ange... |
http://rosettacode.org/wiki/Deal_cards_for_FreeCell | Deal cards for FreeCell | Free Cell is the solitaire card game that Paul Alfille introduced to the PLATO system in 1978. Jim Horne, at Microsoft, changed the name to FreeCell and reimplemented the game for DOS, then Windows.
This version introduced 32000 numbered deals. (The FreeCell FAQ tells this history.)
As the game became popular, Jim H... | #Raku | Raku | sub dealgame ($game-number = 1) {
sub ms-lcg-method($seed = $game-number) { ( 214013 * $seed + 2531011 ) % 2**31 }
# lazy list of the random sequence
my @ms-lcg = |(&ms-lcg-method ... *).map: * +> 16;
constant CardBlock = '🂠'.ord;
my @deck = gather for flat(1..11,13,14) X+ (48,32...0) -> $off {... |
http://rosettacode.org/wiki/Day_of_the_week | Day of the week | A company decides that whenever Xmas falls on a Sunday they will give their workers all extra paid holidays so that, together with any public holidays, workers will not have to work the following week (between the 25th of December and the first of January).
Task
In what years between 2008 and 2121 will the 25th of ... | #Cowgol | Cowgol | include "cowgol.coh";
sub weekday(year: uint16, month: uint8, day: uint8): (wd: uint8) is
if month < 3 then
month := month + 10;
year := year - 1;
else
month := month - 2;
end if;
var c := year / 100;
var y := year % 100;
var z := (26 * month as uint16 - 2) / 10;
z ... |
http://rosettacode.org/wiki/Day_of_the_week | Day of the week | A company decides that whenever Xmas falls on a Sunday they will give their workers all extra paid holidays so that, together with any public holidays, workers will not have to work the following week (between the 25th of December and the first of January).
Task
In what years between 2008 and 2121 will the 25th of ... | #D | D | void main() {
import std.stdio, std.range, std.algorithm, std.datetime;
writeln("Christmas comes on a Sunday in the years:\n",
iota(2008, 2122)
.filter!(y => Date(y, 12, 25).dayOfWeek == DayOfWeek.sun));
} |
http://rosettacode.org/wiki/CUSIP | CUSIP |
This page uses content from Wikipedia. The original article was at CUSIP. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
A CUSIP is a nine-character alphanumeric code that identifies a North A... | #CLU | CLU | valid_cusip = proc (s: string) returns (bool)
own chars: string := "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ*@#"
if string$size(s) ~= 9 then return(false) end
sum: int := 0
for i: int in int$from_to(1,8) do
v: int := string$indexc(s[i], chars)-1
if v<0 then return(false) end
if i//2=... |
http://rosettacode.org/wiki/CUSIP | CUSIP |
This page uses content from Wikipedia. The original article was at CUSIP. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
A CUSIP is a nine-character alphanumeric code that identifies a North A... | #Common_Lisp | Common Lisp | (defun char->value (c)
(cond ((digit-char-p c 36))
((char= c #\*) 36)
((char= c #\@) 37)
((char= c #\#) 38)
(t (error "Invalid character: ~A" c))))
(defun cusip-p (cusip)
(and (= 9 (length cusip))
(loop for i from 1 to 8
for c across cusip
for v = (... |
http://rosettacode.org/wiki/Cumulative_standard_deviation | Cumulative standard deviation | Task[edit]
Write a stateful function, class, generator or co-routine that takes a series of floating point numbers, one at a time, and returns the running standard deviation of the series.
The task implementation should use the most natural programming style of those listed for the function in the implementation langu... | #Action.21 | Action! | INCLUDE "H6:REALMATH.ACT"
REAL sum,sum2
INT count
PROC Calc(REAL POINTER x,sd)
REAL tmp1,tmp2,tmp3
RealAdd(sum,x,tmp1) ;tmp1=sum+x
RealAssign(tmp1,sum) ;sum=sum+x
RealMult(x,x,tmp1) ;tmp1=x*x
RealAdd(sum2,tmp1,tmp2) ;tmp2=sum2+x*x
RealAssign(tmp2,sum2) ;sum2=sum2+x*x
count==+... |
http://rosettacode.org/wiki/Date_format | Date format | This task has been clarified. Its programming examples are in need of review to ensure that they still fit the requirements of the task.
Task
Display the current date in the formats of:
2007-11-23 and
Friday, November 23, 2007
| #C | C | #include <stdlib.h>
#include <stdio.h>
#include <time.h>
#define MAX_BUF 50
int main(void)
{
char buf[MAX_BUF];
time_t seconds = time(NULL);
struct tm *now = localtime(&seconds);
const char *months[] = {"January", "February", "March", "April", "May", "June",
"July", "August", "Septem... |
http://rosettacode.org/wiki/Cullen_and_Woodall_numbers | Cullen and Woodall numbers | A Cullen number is a number of the form n × 2n + 1 where n is a natural number.
A Woodall number is very similar. It is a number of the form n × 2n - 1 where n is a natural number.
So for each n the associated Cullen number and Woodall number differ by 2.
Woodall numbers are sometimes referred to as Riesel numbers o... | #Perl | Perl | use strict;
use warnings;
use bigint;
use ntheory 'is_prime';
use constant Inf => 1e10;
sub cullen {
my($n,$c) = @_;
($n * 2**$n) + $c;
}
my($m,$n);
($m,$n) = (20,0);
print "First $m Cullen numbers:\n";
print do { $n < $m ? (++$n and cullen($_,1) . ' ') : last } for 1 .. Inf;
($m,$n) = (20,0);
print "\... |
http://rosettacode.org/wiki/Damm_algorithm | Damm algorithm | The Damm algorithm is a checksum algorithm which detects all single digit errors and adjacent transposition errors.
The algorithm is named after H. Michael Damm.
Task
Verify the checksum, stored as last digit of an input.
| #CLU | CLU | % Verify that the Damm check digit of a string of digits is correct.
% Signals 'bad_format' if the string contains non-digits.
damm = proc (s: string) returns (bool) signals (bad_format)
ai = array[int]
aai = array[ai]
own damm_table: aai := aai$[0:
ai$[0: 0,3,1,7,5,9,8,6,4,2],
ai$[0: 7,0,9... |
http://rosettacode.org/wiki/Damm_algorithm | Damm algorithm | The Damm algorithm is a checksum algorithm which detects all single digit errors and adjacent transposition errors.
The algorithm is named after H. Michael Damm.
Task
Verify the checksum, stored as last digit of an input.
| #Cowgol | Cowgol | include "cowgol.coh";
# Damm test on number given as ASCII string
# Returns check digit
sub damm(num: [uint8]): (chk: uint8) is
var table: uint8[] := {
0,3,1,7,5,9,8,6,4,2,
7,0,9,2,1,5,4,8,6,3,
4,2,0,6,8,7,1,3,5,9,
1,7,5,0,9,8,3,4,2,6,
6,1,2,3,0,4,5,9,7,8,
3,6,7,4,2... |
http://rosettacode.org/wiki/Currency | Currency | Task
Show how to represent currency in a simple example, using a data type that represent exact values of dollars and cents.
Note
The IEEE 754 binary floating point representations of numbers like 2.86 and .0765 are not exact.
For this example, data will be two items with prices in dollars and cents, a qu... | #Ada | Ada | with Ada.Text_IO;
procedure Currency is
type Dollar is delta 0.01 range 0.0 .. 24_000_000_000_000_000.0;
package Dollar_IO is new Ada.Text_IO.Fixed_IO(Dollar);
hamburger_cost : constant := 5.50;
milkshake_cost : constant := 2.86;
tax_rate : constant := 0.0765;
total_cost : constant := hamburger_... |
http://rosettacode.org/wiki/Currency | Currency | Task
Show how to represent currency in a simple example, using a data type that represent exact values of dollars and cents.
Note
The IEEE 754 binary floating point representations of numbers like 2.86 and .0765 are not exact.
For this example, data will be two items with prices in dollars and cents, a qu... | #ALGOL_68 | ALGOL 68 | BEGIN
# currency calculations #
# simple fixed point type, LONG INT is 64-bit in Algol 68G #
MODE FIXED = STRUCT( LONG INT value
, INT decimals
, INT fraction modulus
... |
http://rosettacode.org/wiki/Currying | Currying |
This page uses content from Wikipedia. The original article was at Currying. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
Task
Create a simple demonstrative example of Currying in a specific la... | #Common_Lisp | Common Lisp | (defun curry (function &rest args-1)
(lambda (&rest args-2)
(apply function (append args-1 args-2))))
|
http://rosettacode.org/wiki/Currying | Currying |
This page uses content from Wikipedia. The original article was at Currying. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
Task
Create a simple demonstrative example of Currying in a specific la... | #Crystal | Crystal | add_things = ->(x1 : Int32, x2 : Int32, x3 : Int32) { x1 + x2 + x3 }
add_curried = add_things.partial(2, 3)
add_curried.call(4) #=> 9
def add_two_things(x1)
return ->(x2 : Int32) {
->(x3 : Int32) { x1 + x2 + x3 }
}
end
add13 = add_two_things(3).call(10)
add13.call(5) #=> 18 |
http://rosettacode.org/wiki/Create_an_object_at_a_given_address | Create an object at a given address |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #68000_Assembly | 68000 Assembly | MOVE.L #$12345678,$100000 |
http://rosettacode.org/wiki/Create_an_object_at_a_given_address | Create an object at a given address |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #8086_Assembly | 8086 Assembly | .model small ;specify memory model to use
.stack 1024 ;set up stack
.data ;data segment
UserRam BYTE 256 DUP (0) ;allocate 256 bytes of user RAM, initialized to zero.
tempByte equ UserRam ... |
http://rosettacode.org/wiki/Create_an_object_at_a_given_address | Create an object at a given address |
Basic Data Operation
This is a basic data operation. It represents a fundamental action on a basic data type.
You may see other such operations in the Basic Data Operations category, or:
Integer Operations
Arithmetic |
Comparison
Boolean Operations
Bitwise |
Logical
String Operations
Concatenation |
Interpolation |... | #Action.21 | Action! | DEFINE FIRST="12345"
DEFINE SECOND="54321"
DEFINE PTR="CARD"
PROC Main()
PTR base,copy=base
PrintF("Address of base variable: %H%E",@base)
PrintF("Address of copy variable: %H%E",@copy)
PutE()
PrintF("Assign %U value to base variable%E",FIRST)
base=FIRST
PrintF("Value of base variable: %U%E",base)
... |
http://rosettacode.org/wiki/Cyclotomic_polynomial | Cyclotomic polynomial | The nth Cyclotomic polynomial, for any positive integer n, is the unique irreducible polynomial of largest degree with integer coefficients that is a divisor of x^n − 1, and is not a divisor of x^k − 1 for any k < n.
Task
Find and print the first 30 cyclotomic polynomials.
Find and print the order of the first 10... | #Kotlin | Kotlin | import java.util.TreeMap
import kotlin.math.abs
import kotlin.math.pow
import kotlin.math.sqrt
private const val algorithm = 2
fun main() {
println("Task 1: cyclotomic polynomials for n <= 30:")
for (i in 1..30) {
val p = cyclotomicPolynomial(i)
println("CP[$i] = $p")
}
println()
... |
http://rosettacode.org/wiki/Cut_a_rectangle | Cut a rectangle | A given rectangle is made from m × n squares. If m and n are not both odd, then it is possible to cut a path through the rectangle along the square edges such that the rectangle splits into two connected pieces with the same shape (after rotating one of the pieces by 180°). All such paths for 2 × 2 and 4 × 3 rectangles... | #Nim | Nim | import strformat
var
w, h: int
grid: seq[byte]
next: array[4, int]
count: int
const Dirs = [[0, -1], [-1, 0], [0, 1], [1, 0]]
template odd(n: int): bool = (n and 1) != 0
#------------------------------------------------------------------------------
proc walk(y, x: int) =
if y == 0 or y == h or x ... |
http://rosettacode.org/wiki/Date_manipulation | Date manipulation | Task
Given the date string "March 7 2009 7:30pm EST",
output the time 12 hours later in any human-readable format.
As extra credit, display the resulting time in a time zone different from your own.
| #F.C5.8Drmul.C3.A6 | Fōrmulæ | package main
import (
"fmt"
"time"
)
const taskDate = "March 7 2009 7:30pm EST"
const taskFormat = "January 2 2006 3:04pm MST"
func main() {
if etz, err := time.LoadLocation("US/Eastern"); err == nil {
time.Local = etz
}
fmt.Println("Input: ", taskDate)
t, err := time.P... |
http://rosettacode.org/wiki/Deal_cards_for_FreeCell | Deal cards for FreeCell | Free Cell is the solitaire card game that Paul Alfille introduced to the PLATO system in 1978. Jim Horne, at Microsoft, changed the name to FreeCell and reimplemented the game for DOS, then Windows.
This version introduced 32000 numbered deals. (The FreeCell FAQ tells this history.)
As the game became popular, Jim H... | #REXX | REXX | /*REXX program deals cards for a specific FreeCell solitaire card game (0 ──► 32767).*/
numeric digits 15 /*ensure enough digits for the random #*/
parse arg game cols . /*obtain optional arguments from the CL*/
if game=='' | game=="," then game=1 ... |
http://rosettacode.org/wiki/Day_of_the_week | Day of the week | A company decides that whenever Xmas falls on a Sunday they will give their workers all extra paid holidays so that, together with any public holidays, workers will not have to work the following week (between the 25th of December and the first of January).
Task
In what years between 2008 and 2121 will the 25th of ... | #Delphi | Delphi | procedure IsXmasSunday(fromyear, toyear: integer);
var
i: integer;
TestDate: TDateTime;
outputyears: string;
begin
outputyears := '';
for i:= fromyear to toyear do
begin
TestDate := EncodeDate(i,12,25);
if dayofweek(TestDate) = 1 then
begin
outputyears := outputyears + inttostr(i) + ' ';
end;
... |
http://rosettacode.org/wiki/CUSIP | CUSIP |
This page uses content from Wikipedia. The original article was at CUSIP. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance)
A CUSIP is a nine-character alphanumeric code that identifies a North A... | #D | D | import std.stdio;
void main(string[] args) {
writeln("CUSIP Verdict");
foreach(arg; args[1..$]) {
writefln("%9s : %s", arg, isValidCusip(arg) ? "Valid" : "Invalid");
}
}
class IllegalCharacterException : Exception {
this(string msg) {
super(msg);
}
}
bool isValidCusip(str... |
http://rosettacode.org/wiki/Cumulative_standard_deviation | Cumulative standard deviation | Task[edit]
Write a stateful function, class, generator or co-routine that takes a series of floating point numbers, one at a time, and returns the running standard deviation of the series.
The task implementation should use the most natural programming style of those listed for the function in the implementation langu... | #Ada | Ada |
with Ada.Numerics.Elementary_Functions; use Ada.Numerics.Elementary_Functions;
with Ada.Numerics.Elementary_Functions; use Ada.Numerics.Elementary_Functions;
with Ada.Text_IO; use Ada.Text_IO;
with Ada.Float_Text_IO; use Ada.Float_Text_IO;
with Ada.Integer_Text_IO; ... |
http://rosettacode.org/wiki/Date_format | Date format | This task has been clarified. Its programming examples are in need of review to ensure that they still fit the requirements of the task.
Task
Display the current date in the formats of:
2007-11-23 and
Friday, November 23, 2007
| #C.23 | C# | using System;
namespace RosettaCode.DateFormat
{
class Program
{
static void Main(string[] args)
{
DateTime today = DateTime.Now.Date;
Console.WriteLine(today.ToString("yyyy-MM-dd"));
Console.WriteLine(today.ToString("dddd, MMMMM d, yyyy"));
}
}
... |
http://rosettacode.org/wiki/Date_format | Date format | This task has been clarified. Its programming examples are in need of review to ensure that they still fit the requirements of the task.
Task
Display the current date in the formats of:
2007-11-23 and
Friday, November 23, 2007
| #C.2B.2B | C++ | // Display the current date in the formats of "2007-11-10"
// and "Sunday, November 10, 2007".
#include <vector>
#include <string>
#include <iostream>
#include <ctime>
/** Return the current date in a string, formatted as either ISO-8601
* or "Weekday-name, Month-name Day, Year".
*
* The date is initialized w... |
http://rosettacode.org/wiki/Cullen_and_Woodall_numbers | Cullen and Woodall numbers | A Cullen number is a number of the form n × 2n + 1 where n is a natural number.
A Woodall number is very similar. It is a number of the form n × 2n - 1 where n is a natural number.
So for each n the associated Cullen number and Woodall number differ by 2.
Woodall numbers are sometimes referred to as Riesel numbers o... | #Phix | Phix | with javascript_semantics
atom t0 = time()
include mpfr.e
procedure cullen(mpz r, integer n)
mpz_ui_pow_ui(r,2,n)
mpz_mul_si(r,r,n)
mpz_add_si(r,r,1)
end procedure
procedure woodall(mpz r, integer n)
cullen(r,n)
mpz_sub_si(r,r,2)
end procedure
sequence c = {}, w = {}
mpz z = mpz_init()
for i=1 ... |
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