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stringlengths 1
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null | 219Special characters
| 8haskell
| yis66 |
void StoogeSort(int a[], int i, int j)
{
int t;
if (a[j] < a[i]) SWAP(a[i], a[j]);
if (j - i > 1)
{
t = (j - i + 1) / 3;
StoogeSort(a, i, j - t);
StoogeSort(a, i + t, j);
StoogeSort(a, i, j - t);
}
}
int main(int argc, char *argv[])
{
int nums[] = {1, 4, 5, 3, -6, 3, 7, 10, -2, -5, 7, 5, 9, -3, 7};
int i, n;
n = sizeof(nums)/sizeof(int);
StoogeSort(nums, 0, n-1);
for(i = 0; i <= n-1; i++)
printf(, nums[i]);
return 0;
} | 221Sorting algorithms/Stooge sort
| 5c
| 6ow32 |
(ns sleepsort.core
(require [clojure.core.async:as async:refer [chan go <! <!! >! timeout]]))
(defn sleep-sort [l]
(let [c (chan (count l))]
(doseq [i l]
(go (<! (timeout (* 1000 i)))
(>! c i)))
(<!! (async/into [] (async/take (count l) c))))) | 220Sorting algorithms/Sleep sort
| 6clojure
| 9d0ma |
import Data.List.Split (splitOneOf)
import Data.Char (chr)
toSparkLine :: [Double] -> String
toSparkLine xs = map cl xs
where
top = maximum xs
bot = minimum xs
range = top - bot
cl x = chr $ 0x2581 + floor (min 7 ((x - bot) / range * 8))
makeSparkLine :: String -> (String, Stats)
makeSparkLine xs = (toSparkLine parsed, stats parsed)
where
parsed = map read $ filter (not . null) $ splitOneOf " ," xs
data Stats = Stats
{ minValue, maxValue, rangeOfValues :: Double
, numberOfValues :: Int
}
instance Show Stats where
show (Stats mn mx r n) =
"min: " ++
show mn ++
"; max: " ++
show mx ++ "; range: " ++ show r ++ "; no. of values: " ++ show n
stats :: [Double] -> Stats
stats xs =
Stats
{ minValue = mn
, maxValue = mx
, rangeOfValues = mx - mn
, numberOfValues = length xs
}
where
mn = minimum xs
mx = maximum xs
drawSparkLineWithStats :: String -> IO ()
drawSparkLineWithStats xs = putStrLn sp >> print st
where
(sp, st) = makeSparkLine xs
main :: IO ()
main =
mapM_
drawSparkLineWithStats
[ "0, 1, 19, 20"
, "0, 999, 4000, 4999, 7000, 7999"
, "1 2 3 4 5 6 7 8 7 6 5 4 3 2 1"
, "1.5, 0.5 3.5, 2.5 5.5, 4.5 7.5, 6.5"
, "3 2 1 0 -1 -2 -3 -4 -3 -2 -1 0 1 2 3"
, "-1000 100 1000 500 200 -400 -700 621 -189 3"
] | 217Sparkline in unicode
| 8haskell
| p4ubt |
data class Person(val name: String) {
val preferences = mutableListOf<Person>()
var matchedTo: Person? = null
fun trySwap(p: Person) {
if (prefers(p)) {
matchedTo?.matchedTo = null
matchedTo = p
p.matchedTo = this
}
}
fun prefers(p: Person) = when (matchedTo) {
null -> true
else -> preferences.indexOf(p) < preferences.indexOf(matchedTo!!)
}
fun showMatch() = "$name <=> ${matchedTo?.name}"
}
fun match(males: Collection<Person>) {
while (males.find { it.matchedTo == null }?.also { match(it) } != null) {
}
}
fun match(male: Person) {
while (male.matchedTo == null) {
male.preferences.removeAt(0).trySwap(male)
}
}
fun isStableMatch(males: Collection<Person>, females: Collection<Person>): Boolean {
return males.all { isStableMatch(it, females) }
}
fun isStableMatch(male: Person, females: Collection<Person>): Boolean {
val likesBetter = females.filter { !male.preferences.contains(it) }
val stable = !likesBetter.any { it.prefers(male) }
if (!stable) {
println("#### Unstable pair: ${male.showMatch()}")
}
return stable
}
fun main(args: Array<String>) {
val inMales = mapOf(
"abe" to mutableListOf("abi", "eve", "cath", "ivy", "jan", "dee", "fay", "bea", "hope", "gay"),
"bob" to mutableListOf("cath", "hope", "abi", "dee", "eve", "fay", "bea", "jan", "ivy", "gay"),
"col" to mutableListOf("hope", "eve", "abi", "dee", "bea", "fay", "ivy", "gay", "cath", "jan"),
"dan" to mutableListOf("ivy", "fay", "dee", "gay", "hope", "eve", "jan", "bea", "cath", "abi"),
"ed" to mutableListOf("jan", "dee", "bea", "cath", "fay", "eve", "abi", "ivy", "hope", "gay"),
"fred" to mutableListOf("bea", "abi", "dee", "gay", "eve", "ivy", "cath", "jan", "hope", "fay"),
"gav" to mutableListOf("gay", "eve", "ivy", "bea", "cath", "abi", "dee", "hope", "jan", "fay"),
"hal" to mutableListOf("abi", "eve", "hope", "fay", "ivy", "cath", "jan", "bea", "gay", "dee"),
"ian" to mutableListOf("hope", "cath", "dee", "gay", "bea", "abi", "fay", "ivy", "jan", "eve"),
"jon" to mutableListOf("abi", "fay", "jan", "gay", "eve", "bea", "dee", "cath", "ivy", "hope"))
val inFemales = mapOf(
"abi" to listOf("bob", "fred", "jon", "gav", "ian", "abe", "dan", "ed", "col", "hal"),
"bea" to listOf("bob", "abe", "col", "fred", "gav", "dan", "ian", "ed", "jon", "hal"),
"cath" to listOf("fred", "bob", "ed", "gav", "hal", "col", "ian", "abe", "dan", "jon"),
"dee" to listOf("fred", "jon", "col", "abe", "ian", "hal", "gav", "dan", "bob", "ed"),
"eve" to listOf("jon", "hal", "fred", "dan", "abe", "gav", "col", "ed", "ian", "bob"),
"fay" to listOf("bob", "abe", "ed", "ian", "jon", "dan", "fred", "gav", "col", "hal"),
"gay" to listOf("jon", "gav", "hal", "fred", "bob", "abe", "col", "ed", "dan", "ian"),
"hope" to listOf("gav", "jon", "bob", "abe", "ian", "dan", "hal", "ed", "col", "fred"),
"ivy" to listOf("ian", "col", "hal", "gav", "fred", "bob", "abe", "ed", "jon", "dan"),
"jan" to listOf("ed", "hal", "gav", "abe", "bob", "jon", "col", "ian", "fred", "dan"))
fun buildPrefs(person: Person, stringPrefs: List<String>, population: List<Person>) {
person.preferences.addAll(
stringPrefs.map { name -> population.single { it.name == name } }
)
}
val males = inMales.keys.map { Person(it) }
val females = inFemales.keys.map { Person(it) }
males.forEach { buildPrefs(it, inMales[it.name]!!, females) }
females.forEach { buildPrefs(it, inFemales[it.name]!!, males) }
match(males)
males.forEach { println(it.showMatch()) }
println("#### match is stable: ${isStableMatch(males, females)}")
fun swapMatch(male1: Person, male2: Person) {
val female1 = male1.matchedTo!!
val female2 = male2.matchedTo!!
male1.matchedTo = female2
male2.matchedTo = female1
female1.matchedTo = male2
female2.matchedTo = male1
}
swapMatch(males.single { it.name == "fred" }, males.single { it.name == "jon" })
males.forEach { println(it.showMatch()) }
println("#### match is stable: ${isStableMatch(males, females)}")
} | 214Stable marriage problem
| 11kotlin
| p4gb6 |
public extension String {
func splitOnChanges() -> [String] {
guard!isEmpty else {
return []
}
var res = [String]()
var workingChar = first!
var workingStr = "\(workingChar)"
for char in dropFirst() {
if char!= workingChar {
res.append(workingStr)
workingStr = "\(char)"
workingChar = char
} else {
workingStr += String(char)
}
}
res.append(workingStr)
return res
}
}
print("gHHH5YY++ | 210Split a character string based on change of character
| 17swift
| tsnfl |
public class Sparkline
{
String bars="";
public static void main(String[] args)
{
Sparkline now=new Sparkline();
float[] arr={1, 2, 3, 4, 5, 6, 7, 8, 7, 6, 5, 4, 3, 2, 1};
now.display1D(arr);
System.out.println(now.getSparkline(arr));
float[] arr1={1.5f, 0.5f, 3.5f, 2.5f, 5.5f, 4.5f, 7.5f, 6.5f};
now.display1D(arr1);
System.out.println(now.getSparkline(arr1));
}
public void display1D(float[] arr)
{
for(int i=0;i<arr.length;i++)
System.out.print(arr[i]+" ");
System.out.println();
}
public String getSparkline(float[] arr)
{
float min=Integer.MAX_VALUE;
float max=Integer.MIN_VALUE;
for(int i=0;i<arr.length;i++)
{
if(arr[i]<min)
min=arr[i];
if(arr[i]>max)
max=arr[i];
}
float range=max-min;
int num=bars.length()-1;
String line="";
for(int i=0;i<arr.length;i++)
{
line+=bars.charAt((int)Math.ceil(((arr[i]-min)/range*num)));
}
return line;
}
} | 217Sparkline in unicode
| 9java
| rcmg0 |
local Person = {}
Person.__index = Person
function Person.new(inName)
local o = {
name = inName,
prefs = nil,
fiance = nil,
_candidateIndex = 1,
}
return setmetatable(o, Person)
end
function Person:indexOf(other)
for i, p in pairs(self.prefs) do
if p == other then return i end
end
return 999
end
function Person:prefers(other)
return self:indexOf(other) < self:indexOf(self.fiance)
end
function Person:nextCandidateNotYetProposedTo()
if self._candidateIndex >= #self.prefs then return nil end
local c = self.prefs[self._candidateIndex];
self._candidateIndex = self._candidateIndex + 1
return c;
end
function Person:engageTo(other)
if other.fiance then
other.fiance.fiance = nil
end
other.fiance = self
if self.fiance then
self.fiance.fiance = nil
end
self.fiance = other;
end
local function isStable(men)
local women = men[1].prefs
local stable = true
for _, guy in pairs(men) do
for _, gal in pairs(women) do
if guy:prefers(gal) and gal:prefers(guy) then
stable = false
print(guy.name .. ' and ' .. gal.name ..
' prefer each other over their partners ' ..
guy.fiance.name .. ' and ' .. gal.fiance.name)
end
end
end
return stable
end
local abe = Person.new("Abe")
local bob = Person.new("Bob")
local col = Person.new("Col")
local dan = Person.new("Dan")
local ed = Person.new("Ed")
local fred = Person.new("Fred")
local gav = Person.new("Gav")
local hal = Person.new("Hal")
local ian = Person.new("Ian")
local jon = Person.new("Jon")
local abi = Person.new("Abi")
local bea = Person.new("Bea")
local cath = Person.new("Cath")
local dee = Person.new("Dee")
local eve = Person.new("Eve")
local fay = Person.new("Fay")
local gay = Person.new("Gay")
local hope = Person.new("Hope")
local ivy = Person.new("Ivy")
local jan = Person.new("Jan")
abe.prefs = { abi, eve, cath, ivy, jan, dee, fay, bea, hope, gay }
bob.prefs = { cath, hope, abi, dee, eve, fay, bea, jan, ivy, gay }
col.prefs = { hope, eve, abi, dee, bea, fay, ivy, gay, cath, jan }
dan.prefs = { ivy, fay, dee, gay, hope, eve, jan, bea, cath, abi }
ed.prefs = { jan, dee, bea, cath, fay, eve, abi, ivy, hope, gay }
fred.prefs = { bea, abi, dee, gay, eve, ivy, cath, jan, hope, fay }
gav.prefs = { gay, eve, ivy, bea, cath, abi, dee, hope, jan, fay }
hal.prefs = { abi, eve, hope, fay, ivy, cath, jan, bea, gay, dee }
ian.prefs = { hope, cath, dee, gay, bea, abi, fay, ivy, jan, eve }
jon.prefs = { abi, fay, jan, gay, eve, bea, dee, cath, ivy, hope }
abi.prefs = { bob, fred, jon, gav, ian, abe, dan, ed, col, hal }
bea.prefs = { bob, abe, col, fred, gav, dan, ian, ed, jon, hal }
cath.prefs = { fred, bob, ed, gav, hal, col, ian, abe, dan, jon }
dee.prefs = { fred, jon, col, abe, ian, hal, gav, dan, bob, ed }
eve.prefs = { jon, hal, fred, dan, abe, gav, col, ed, ian, bob }
fay.prefs = { bob, abe, ed, ian, jon, dan, fred, gav, col, hal }
gay.prefs = { jon, gav, hal, fred, bob, abe, col, ed, dan, ian }
hope.prefs = { gav, jon, bob, abe, ian, dan, hal, ed, col, fred }
ivy.prefs = { ian, col, hal, gav, fred, bob, abe, ed, jon, dan }
jan.prefs = { ed, hal, gav, abe, bob, jon, col, ian, fred, dan }
local men = abi.prefs
local freeMenCount = #men
while freeMenCount > 0 do
for _, guy in pairs(men) do
if not guy.fiance then
local gal = guy:nextCandidateNotYetProposedTo()
if not gal.fiance then
guy:engageTo(gal)
freeMenCount = freeMenCount - 1
elseif gal:prefers(guy) then
guy:engageTo(gal)
end
end
end
end
print(' ')
for _, guy in pairs(men) do
print(guy.name .. ' is engaged to ' .. guy.fiance.name)
end
print('Stable: ', isStable(men))
print(' ')
print('Switching ' .. fred.name .. "'s & " .. jon.name .. "'s partners")
jon.fiance, fred.fiance = fred.fiance, jon.fiance
print('Stable: ', isStable(men)) | 214Stable marriage problem
| 1lua
| 1grpo |
(() => {
'use strict';
const main = () => { | 217Sparkline in unicode
| 10javascript
| b5vki |
use English;
$. $INPUT_LINE_NUMBER
$, $OUTPUT_FIELD_SEPARATOR
$; $SUBSCRIPT_SEPARATOR
$_ $ARG
$" $LIST_SEPARATOR
$+ $LAST_PAREN_MATCH
$0 $PROGRAM_NAME
$! $ERRNO
$@ $EVAL_ERROR
$/ $INPUT_RECORD_SEPARATOR
$\ $OUTPUT_RECORD_SEPARATOR
$| $OUTPUT_AUTOFLUSH
$& $MATCH
$' $POSTMATCH
$` $PREMATCH
@ARGV
@F
@INC
%ENV
%SIG | 215Special variables
| 2perl
| 4mm5d |
& | ^ ~ | 219Special characters
| 9java
| dx1n9 |
^[a-zA-Z_][a-zA-Z_0-9]*$ | 219Special characters
| 10javascript
| 6oq38 |
(defn swap [v x y]
(assoc! v y (v x) x (v y)))
(defn stooge-sort
([v] (persistent! (stooge-sort (transient v) 0 (dec (count v)))))
([v i j]
(if (> (v i) (v j)) (swap v i j) v)
(if (> (- j i) 1)
(let [t (int (Math/floor (/ (inc (- j i)) 3)))]
(stooge-sort v i (- j t))
(stooge-sort v (+ i t) j)
(stooge-sort v i (- j t))))
v)) | 221Sorting algorithms/Stooge sort
| 6clojure
| lt8cb |
void main() async {
Future<void> sleepsort(Iterable<int> input) => Future.wait(input
.map((i) => Future.delayed(Duration(milliseconds: i), () => print(i))));
await sleepsort([3, 10, 2, 120, 122, 121, 54]);
} | 220Sorting algorithms/Sleep sort
| 18dart
| oah8s |
internal const val bars = ""
internal const val n = bars.length - 1
fun <T: Number> Iterable<T>.toSparkline(): String {
var min = Double.MAX_VALUE
var max = Double.MIN_VALUE
val doubles = map { it.toDouble() }
doubles.forEach { i -> when { i < min -> min = i; i > max -> max = i } }
val range = max - min
return doubles.fold("") { line, d -> line + bars[Math.ceil((d - min) / range * n).toInt()] }
}
fun String.toSparkline() = replace(",", "").split(" ").map { it.toFloat() }.toSparkline()
fun main(args: Array<String>) {
val s1 = "1 2 3 4 5 6 7 8 7 6 5 4 3 2 1"
println(s1)
println(s1.toSparkline())
val s2 = "1.5, 0.5 3.5, 2.5 5.5, 4.5 7.5, 6.5"
println(s2)
println(s2.toSparkline())
} | 217Sparkline in unicode
| 11kotlin
| v3t21 |
use strict;
use warnings;
use feature 'say';
sub merge {
my ($x, $y) = @_;
my @out;
while (@$x and @$y) {
my $t = $x->[-1] <=> $y->[-1];
if ($t == 1) { unshift @out, pop @$x }
elsif ($t == -1) { unshift @out, pop @$y }
else { splice @out, 0, 0, pop(@$x), pop(@$y) }
}
@$x, @$y, @out
}
sub strand {
my $x = shift;
my @out = shift @$x // return;
for (-@$x .. -1) {
push @out, splice @$x, $_, 1 if $x->[$_] >= $out[-1];
}
@out
}
sub strand_sort {
my @x = @_;
my(@out, @strand);
@out = merge \@out, \@strand while @strand = strand(\@x);
@out
}
my @a = map (int rand(100), 1 .. 10);
say "Before @a";
@a = strand_sort(@a);
say "After @a"; | 216Sorting algorithms/Strand sort
| 2perl
| wj7e6 |
typedef int(*cmp_func)(const void*, const void*);
void perm_sort(void *a, int n, size_t msize, cmp_func _cmp)
{
char *p, *q, *tmp = malloc(msize);
memcpy(tmp, a, msize);\
memcpy(a, b, msize);\
memcpy(b, tmp, msize); }
while (1) {
for (p = A(n - 1); (void*)p > a; p = q)
if (_cmp(q = p - msize, p) > 0)
break;
if ((void*)p <= a) break;
for (p = A(n - 1); p > q; p-= msize)
if (_cmp(q, p) > 0) break;
swap(p, q);
for (q += msize, p = A(n - 1); q < p; q += msize, p -= msize)
swap(p, q);
}
free(tmp);
}
int scmp(const void *a, const void *b) { return strcmp(*(const char *const *)a, *(const char *const *)b); }
int main()
{
int i;
const char *strs[] = { , , , , };
perm_sort(strs, 5, sizeof(*strs), scmp);
for (i = 0; i < 5; i++)
printf(, strs[i]);
return 0;
} | 222Sorting algorithms/Permutation sort
| 5c
| lt0cy |
# defined local ie. #mylocal will fail if not defined
$ defined variable ie. $myvar will fail if not defined
= assignment
:= assign as return assigned value
? ternary conditional true? this
| ternary else false? this | that
|| or
&& and
! negative operator
{ open capture
} close capture
=> specify givenblock / capture
-> invoke method: mytype->mymethod
& retarget: mytype->mymethod& | 219Special characters
| 11kotlin
| 0pjsf |
void shell_sort (int *a, int n) {
int h, i, j, t;
for (h = n; h /= 2;) {
for (i = h; i < n; i++) {
t = a[i];
for (j = i; j >= h && t < a[j - h]; j -= h) {
a[j] = a[j - h];
}
a[j] = t;
}
}
}
int main (int ac, char **av) {
int a[] = {4, 65, 2, -31, 0, 99, 2, 83, 782, 1};
int n = sizeof a / sizeof a[0];
int i;
for (i = 0; i < n; i++)
printf(, a[i], i == n - 1 ? : );
shell_sort(a, n);
for (i = 0; i < n; i++)
printf(, a[i], i == n - 1 ? : );
return 0;
} | 223Sorting algorithms/Shell sort
| 5c
| 7ltrg |
var intStack []int | 212Stack
| 0go
| 4ml52 |
names = sorted((set(globals().keys()) | set(__builtins__.__dict__.keys())) - set('_ names i'.split()))
print( '\n'.join(' '.join(names[i:i+8]) for i in range(0, len(names), 8)) ) | 215Special variables
| 3python
| g994h |
$lst = new SplDoublyLinkedList();
foreach (array(1,20,64,72,48,75,96,55,42,74) as $v)
$lst->push($v);
foreach (strandSort($lst) as $v)
echo ;
function strandSort(SplDoublyLinkedList $lst) {
$result = new SplDoublyLinkedList();
while (!$lst->isEmpty()) {
$sorted = new SplDoublyLinkedList();
$remain = new SplDoublyLinkedList();
$sorted->push($lst->shift());
foreach ($lst as $item) {
if ($sorted->top() <= $item) {
$sorted->push($item);
} else {
$remain->push($item);
}
}
$result = _merge($sorted, $result);
$lst = $remain;
}
return $result;
}
function _merge(SplDoublyLinkedList $left, SplDoublyLinkedList $right) {
$res = new SplDoublyLinkedList();
while (!$left->isEmpty() && !$right->isEmpty()) {
if ($left->bottom() <= $right->bottom()) {
$res->push($left->shift());
} else {
$res->push($right->shift());
}
}
foreach ($left as $v) $res->push($v);
foreach ($right as $v) $res->push($v);
return $res;
} | 216Sorting algorithms/Strand sort
| 12php
| ltfcj |
use strict;
use warnings;
use feature qw/say/;
use List::Util qw(first);
my %Likes = (
M => {
abe => [qw/ abi eve cath ivy jan dee fay bea hope gay /],
bob => [qw/ cath hope abi dee eve fay bea jan ivy gay /],
col => [qw/ hope eve abi dee bea fay ivy gay cath jan /],
dan => [qw/ ivy fay dee gay hope eve jan bea cath abi /],
ed => [qw/ jan dee bea cath fay eve abi ivy hope gay /],
fred => [qw/ bea abi dee gay eve ivy cath jan hope fay /],
gav => [qw/ gay eve ivy bea cath abi dee hope jan fay /],
hal => [qw/ abi eve hope fay ivy cath jan bea gay dee /],
ian => [qw/ hope cath dee gay bea abi fay ivy jan eve /],
jon => [qw/ abi fay jan gay eve bea dee cath ivy hope /],
},
W => {
abi => [qw/ bob fred jon gav ian abe dan ed col hal /],
bea => [qw/ bob abe col fred gav dan ian ed jon hal /],
cath => [qw/ fred bob ed gav hal col ian abe dan jon /],
dee => [qw/ fred jon col abe ian hal gav dan bob ed /],
eve => [qw/ jon hal fred dan abe gav col ed ian bob /],
fay => [qw/ bob abe ed ian jon dan fred gav col hal /],
gay => [qw/ jon gav hal fred bob abe col ed dan ian /],
hope => [qw/ gav jon bob abe ian dan hal ed col fred /],
ivy => [qw/ ian col hal gav fred bob abe ed jon dan /],
jan => [qw/ ed hal gav abe bob jon col ian fred dan /],
},
);
my %Engaged;
my %Proposed;
match_them();
check_stability();
perturb();
check_stability();
sub match_them {
say 'Matchmaking:';
while(my $man = unmatched_man()) {
my $woman = preferred_choice($man);
$Proposed{$man}{$woman} = 1;
if(! $Engaged{W}{$woman}) {
engage($man, $woman);
say "\t$woman and $man";
}
else {
if(woman_prefers($woman, $man)) {
my $engaged_man = $Engaged{W}{$woman};
engage($man, $woman);
undef $Engaged{M}{$engaged_man};
say "\t$woman dumped $engaged_man for $man";
}
}
}
}
sub check_stability {
say 'Stablility:';
my $stable = 1;
foreach my $m (men()) {
foreach my $w (women()) {
if(man_prefers($m, $w) && woman_prefers($w, $m)) {
say "\t$w prefers $m to $Engaged{W}{$w} and $m prefers $w to $Engaged{M}{$m}";
$stable = 0;
}
}
}
if($stable) {
say "\t(all marriages stable)";
}
}
sub unmatched_man {
return first { ! $Engaged{M}{$_} } men();
}
sub preferred_choice {
my $man = shift;
return first { ! $Proposed{$man}{$_} } @{ $Likes{M}{$man} };
}
sub engage {
my ($man, $woman) = @_;
$Engaged{W}{$woman} = $man;
$Engaged{M}{$man} = $woman;
}
sub prefers {
my $sex = shift;
return sub {
my ($person, $prospect) = @_;
my $choices = join ' ', @{ $Likes{$sex}{$person} };
return index($choices, $prospect) < index($choices, $Engaged{$sex}{$person});
}
}
BEGIN {
*woman_prefers = prefers('W');
*man_prefers = prefers('M');
}
sub perturb {
say 'Perturb:';
say "\tengage abi with fred and bea with jon";
engage('fred' => 'abi');
engage('jon' => 'bea');
}
sub men { keys %{ $Likes{M} } }
sub women { keys %{ $Likes{W} } } | 214Stable marriage problem
| 2perl
| yin6u |
def stack = []
assert stack.empty
stack.push(55)
stack.push(21)
stack.push('kittens')
assert stack.last() == 'kittens'
assert stack.size() == 3
assert ! stack.empty
println stack
assert stack.pop() == "kittens"
assert stack.size() == 2
println stack
stack.push(-20)
println stack
stack.push( stack.pop() * stack.pop() )
assert stack.last() == -420
assert stack.size() == 2
println stack
stack.push(stack.pop() / stack.pop())
assert stack.size() == 1
println stack
println stack.pop()
assert stack.size() == 0
assert stack.empty
try { stack.pop() } catch (NoSuchElementException e) { println e.message } | 212Stack
| 7groovy
| lt6c1 |
Markup:
() Sequence
{} List
" String
\ Escape for following character
(* *) Comment block
base^^number`s
` Context
[[]] Indexed reference
Within expression:
\ At end of line: Continue on next line, skipping white space | 219Special characters
| 1lua
| 81h0e |
type Stack a = [a]
create :: Stack a
create = []
push :: a -> Stack a -> Stack a
push = (:)
pop :: Stack a -> (a, Stack a)
pop [] = error "Stack empty"
pop (x:xs) = (x,xs)
empty :: Stack a -> Bool
empty = null
peek :: Stack a -> a
peek [] = error "Stack empty"
peek (x:_) = x | 212Stack
| 8haskell
| qk1x9 |
package main
import (
"fmt"
"strconv"
)
var n = 5
func main() {
if n < 1 {
return
}
top, left, bottom, right := 0, 0, n-1, n-1
sz := n * n
a := make([]int, sz)
i := 0
for left < right { | 218Spiral matrix
| 0go
| wjgeg |
(use '[clojure.contrib.combinatorics :only (permutations)])
(defn permutation-sort [s]
(first (filter (partial apply <=) (permutations s))))
(permutation-sort [2 3 5 3 5]) | 222Sorting algorithms/Permutation sort
| 6clojure
| 4md5o |
static char code[128] = { 0 };
void add_code(const char *s, int c)
{
while (*s) {
code[(int)*s] = code[0x20 ^ (int)*s] = c;
s++;
}
}
void init()
{
static const char *cls[] =
{ , , , , , , , , 0};
int i;
for (i = 0; cls[i]; i++)
add_code(cls[i], i - 1);
}
const char* soundex(const char *s)
{
static char out[5];
int c, prev, i;
out[0] = out[4] = 0;
if (!s || !*s) return out;
out[0] = *s++;
prev = code[(int)out[0]];
for (i = 1; *s && i < 4; s++) {
if ((c = code[(int)*s]) == prev) continue;
if (c == -1) prev = 0;
else if (c > 0) {
out[i++] = c + '0';
prev = c;
}
}
while (i < 4) out[i++] = '0';
return out;
}
int main()
{
int i;
const char *sdx, *names[][2] = {
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{, },
{0, 0}
};
init();
puts();
for (i = 0; names[i][0]; i++) {
sdx = soundex(names[i][0]);
printf(, names[i][0], names[i][1], sdx);
printf(, strcmp(sdx, names[i][1]) ? : );
}
return 0;
} | 224Soundex
| 5c
| fqhd3 |
enum Direction {
East([0,1]), South([1,0]), West([0,-1]), North([-1,0]);
private static _n
private final stepDelta
private bound
private Direction(delta) {
stepDelta = delta
}
public static setN(int n) {
Direction._n = n
North.bound = 0
South.bound = n-1
West.bound = 0
East.bound = n-1
}
public List move(i, j) {
def dir = this
def newIJDir = [[i,j],stepDelta].transpose().collect { it.sum() } + dir
if (((North.bound)..(South.bound)).contains(newIJDir[0])
&& ((West.bound)..(East.bound)).contains(newIJDir[1])) {
newIJDir
} else {
(++dir).move(i, j)
}
}
public Object next() {
switch (this) {
case North: West.bound++; return East;
case East: North.bound++; return South;
case South: East.bound--; return West;
case West: South.bound--; return North;
}
}
}
def spiralMatrix = { n ->
if (n < 1) return []
def M = (0..<n).collect { [0]*n }
def i = 0
def j = 0
Direction.n = n
def dir = Direction.East
(0..<(n**2)).each { k ->
M[i][j] = k
(i,j,dir) = (k < (n**2 - 1)) \
? dir.move(i,j) \
: [i,j,dir]
}
M
} | 218Spiral matrix
| 7groovy
| b52ky |
import scala._
import scala.{ Predef => _, _ }
def f[M[_]]
def f(m: M[_])
_ + _
m _
m(_)
_ => 5
case _ =>
val (a, _) = (1, 2)
for (_ <- 1 to 10)
f(xs: _*)
case Seq(xs @ _*)
var i: Int = _
def abc_<>!
t._2
var i: Int = _
for (_ <- 1 to 10) doIt()
def f: T; def f_=(t: T) | 215Special variables
| 14ruby
| 7llri |
import scala._ | 215Special variables
| 16scala
| b55k6 |
package main
import (
"fmt"
"log"
"os"
"strconv"
"time"
)
func main() {
out := make(chan uint64)
for _, a := range os.Args[1:] {
i, err := strconv.ParseUint(a, 10, 64)
if err != nil {
log.Fatal(err)
}
go func(n uint64) {
time.Sleep(time.Duration(n) * time.Millisecond)
out <- n
}(i)
}
for _ = range os.Args[1:] {
fmt.Println(<-out)
}
} | 220Sorting algorithms/Sleep sort
| 0go
| ku9hz |
@Grab(group = 'org.codehaus.gpars', module = 'gpars', version = '1.2.1')
import groovyx.gpars.GParsPool
GParsPool.withPool args.size(), {
args.eachParallel {
sleep(it.toInteger() * 10)
println it
}
} | 220Sorting algorithms/Sleep sort
| 7groovy
| g9z46 |
binmode(STDOUT, ":utf8");
our @sparks=map {chr} 0x2581 .. 0x2588;
sub sparkline(@) {
my @n=map {0+$_} grep {length} @_ or return "";
my($min,$max)=($n[0])x2;
if (@n>1) {
for (@n[1..$
if ($_<$min) { $min=$_ }
elsif ($_>$max) { $max=$_ }
}
}
my $sparkline="";
for(@n) {
my $height=int( $max==$min ? @sparks/2 : ($_-$min)/($max-$min)*@sparks );
$height=$
$sparkline.=$sparks[$height];
}
my $summary=sprintf "%d values; range%s..%s", scalar(@n), $min, $max;
return wantarray ? ($summary, "\n", $sparkline, "\n") : $sparkline;
}
print sparkline( split /[\s,]+/ ) while <>; | 217Sparkline in unicode
| 2perl
| 0pks4 |
def merge_list(a, b):
out = []
while len(a) and len(b):
if a[0] < b[0]:
out.append(a.pop(0))
else:
out.append(b.pop(0))
out += a
out += b
return out
def strand(a):
i, s = 0, [a.pop(0)]
while i < len(a):
if a[i] > s[-1]:
s.append(a.pop(i))
else:
i += 1
return s
def strand_sort(a):
out = strand(a)
while len(a):
out = merge_list(out, strand(a))
return out
print strand_sort([1, 6, 3, 2, 1, 7, 5, 3]) | 216Sorting algorithms/Strand sort
| 3python
| xhjwr |
import Data.List
import Control.Monad
grade xs = map snd. sort $ zip xs [0..]
values n = cycle [1,n,-1,-n]
counts n = (n:).concatMap (ap (:) return) $ [n-1,n-2..1]
reshape n = unfoldr (\xs -> if null xs then Nothing else Just (splitAt n xs))
spiral n = reshape n . grade. scanl1 (+). concat $ zipWith replicate (counts n) (values n)
displayRow = putStrLn . intercalate " " . map show
main = mapM displayRow $ spiral 5 | 218Spiral matrix
| 8haskell
| 6os3k |
import System.Environment
import Control.Concurrent
import Control.Monad
sleepSort :: [Int] -> IO ()
sleepSort values = do
chan <- newChan
forM_ values (\time -> forkIO (threadDelay (50000 * time) >> writeChan chan time))
forM_ values (\_ -> readChan chan >>= print)
main :: IO ()
main = getArgs >>= sleepSort . map read | 220Sorting algorithms/Sleep sort
| 8haskell
| nwbie |
static void swap(unsigned *a, unsigned *b) {
unsigned tmp = *a;
*a = *b;
*b = tmp;
}
static void rad_sort_u(unsigned *from, unsigned *to, unsigned bit)
{
if (!bit || to < from + 1) return;
unsigned *ll = from, *rr = to - 1;
for (;;) {
while (ll < rr && !(*ll & bit)) ll++;
while (ll < rr && (*rr & bit)) rr--;
if (ll >= rr) break;
swap(ll, rr);
}
if (!(bit & *ll) && ll < to) ll++;
bit >>= 1;
rad_sort_u(from, ll, bit);
rad_sort_u(ll, to, bit);
}
static void radix_sort(int *a, const size_t len)
{
size_t i;
unsigned *x = (unsigned*) a;
for (i = 0; i < len; i++)
x[i] ^= INT_MIN;
rad_sort_u(x, x + len, INT_MIN);
for (i = 0; i < len; i++)
x[i] ^= INT_MIN;
}
int main(void)
{
srand(time(NULL));
int x[16];
for (size_t i = 0; i < ARR_LEN(x); i++)
x[i] = RAND_RNG(-128,127)
radix_sort(x, ARR_LEN(x));
for (size_t i = 0; i < ARR_LEN(x); i++)
printf(, x[i], i + 1 < ARR_LEN(x) ? ' ' : '\n');
} | 225Sorting algorithms/Radix sort
| 5c
| 0pust |
import java.util.concurrent.CountDownLatch;
public class SleepSort {
public static void sleepSortAndPrint(int[] nums) {
final CountDownLatch doneSignal = new CountDownLatch(nums.length);
for (final int num: nums) {
new Thread(new Runnable() {
public void run() {
doneSignal.countDown();
try {
doneSignal.await(); | 220Sorting algorithms/Sleep sort
| 9java
| qkgxa |
void main() {
List<int> a = shellSort([1100, 2, 56, 200, -52, 3, 99, 33, 177, -199]);
print('$a');
}
shellSort(List<int> array) {
int n = array.length; | 223Sorting algorithms/Shell sort
| 18dart
| v382j |
bar = ''
barcount = len(bar)
def sparkline(numbers):
mn, mx = min(numbers), max(numbers)
extent = mx - mn
sparkline = ''.join(bar[min([barcount - 1,
int((n - mn) / extent * barcount)])]
for n in numbers)
return mn, mx, sparkline
if __name__ == '__main__':
import re
for line in (
).split(';'):
print(, line)
numbers = [float(n) for n in re.split(r'[\s,]+', line.strip())]
mn, mx, sp = sparkline(numbers)
print(' min:%5f; max:%5f'% (mn, mx))
print( + sp) | 217Sparkline in unicode
| 3python
| 81b0o |
import copy
guyprefers = {
'abe': ['abi', 'eve', 'cath', 'ivy', 'jan', 'dee', 'fay', 'bea', 'hope', 'gay'],
'bob': ['cath', 'hope', 'abi', 'dee', 'eve', 'fay', 'bea', 'jan', 'ivy', 'gay'],
'col': ['hope', 'eve', 'abi', 'dee', 'bea', 'fay', 'ivy', 'gay', 'cath', 'jan'],
'dan': ['ivy', 'fay', 'dee', 'gay', 'hope', 'eve', 'jan', 'bea', 'cath', 'abi'],
'ed': ['jan', 'dee', 'bea', 'cath', 'fay', 'eve', 'abi', 'ivy', 'hope', 'gay'],
'fred': ['bea', 'abi', 'dee', 'gay', 'eve', 'ivy', 'cath', 'jan', 'hope', 'fay'],
'gav': ['gay', 'eve', 'ivy', 'bea', 'cath', 'abi', 'dee', 'hope', 'jan', 'fay'],
'hal': ['abi', 'eve', 'hope', 'fay', 'ivy', 'cath', 'jan', 'bea', 'gay', 'dee'],
'ian': ['hope', 'cath', 'dee', 'gay', 'bea', 'abi', 'fay', 'ivy', 'jan', 'eve'],
'jon': ['abi', 'fay', 'jan', 'gay', 'eve', 'bea', 'dee', 'cath', 'ivy', 'hope']}
galprefers = {
'abi': ['bob', 'fred', 'jon', 'gav', 'ian', 'abe', 'dan', 'ed', 'col', 'hal'],
'bea': ['bob', 'abe', 'col', 'fred', 'gav', 'dan', 'ian', 'ed', 'jon', 'hal'],
'cath': ['fred', 'bob', 'ed', 'gav', 'hal', 'col', 'ian', 'abe', 'dan', 'jon'],
'dee': ['fred', 'jon', 'col', 'abe', 'ian', 'hal', 'gav', 'dan', 'bob', 'ed'],
'eve': ['jon', 'hal', 'fred', 'dan', 'abe', 'gav', 'col', 'ed', 'ian', 'bob'],
'fay': ['bob', 'abe', 'ed', 'ian', 'jon', 'dan', 'fred', 'gav', 'col', 'hal'],
'gay': ['jon', 'gav', 'hal', 'fred', 'bob', 'abe', 'col', 'ed', 'dan', 'ian'],
'hope': ['gav', 'jon', 'bob', 'abe', 'ian', 'dan', 'hal', 'ed', 'col', 'fred'],
'ivy': ['ian', 'col', 'hal', 'gav', 'fred', 'bob', 'abe', 'ed', 'jon', 'dan'],
'jan': ['ed', 'hal', 'gav', 'abe', 'bob', 'jon', 'col', 'ian', 'fred', 'dan']}
guys = sorted(guyprefers.keys())
gals = sorted(galprefers.keys())
def check(engaged):
inverseengaged = dict((v,k) for k,v in engaged.items())
for she, he in engaged.items():
shelikes = galprefers[she]
shelikesbetter = shelikes[:shelikes.index(he)]
helikes = guyprefers[he]
helikesbetter = helikes[:helikes.index(she)]
for guy in shelikesbetter:
guysgirl = inverseengaged[guy]
guylikes = guyprefers[guy]
if guylikes.index(guysgirl) > guylikes.index(she):
print(
% (she, guy, he, guysgirl))
return False
for gal in helikesbetter:
girlsguy = engaged[gal]
gallikes = galprefers[gal]
if gallikes.index(girlsguy) > gallikes.index(he):
print(
% (he, gal, she, girlsguy))
return False
return True
def matchmaker():
guysfree = guys[:]
engaged = {}
guyprefers2 = copy.deepcopy(guyprefers)
galprefers2 = copy.deepcopy(galprefers)
while guysfree:
guy = guysfree.pop(0)
guyslist = guyprefers2[guy]
gal = guyslist.pop(0)
fiance = engaged.get(gal)
if not fiance:
engaged[gal] = guy
print(% (guy, gal))
else:
galslist = galprefers2[gal]
if galslist.index(fiance) > galslist.index(guy):
engaged[gal] = guy
print(% (gal, fiance, guy))
if guyprefers2[fiance]:
guysfree.append(fiance)
else:
if guyslist:
guysfree.append(guy)
return engaged
print('\nEngagements:')
engaged = matchmaker()
print('\nCouples:')
print(' ' + ',\n '.join('%s is engaged to%s'% couple
for couple in sorted(engaged.items())))
print()
print('Engagement stability check PASSED'
if check(engaged) else 'Engagement stability check FAILED')
print('\n\nSwapping two fiances to introduce an error')
engaged[gals[0]], engaged[gals[1]] = engaged[gals[1]], engaged[gals[0]]
for gal in gals[:2]:
print(' %s is now engaged to%s'% (gal, engaged[gal]))
print()
print('Engagement stability check PASSED'
if check(engaged) else 'Engagement stability check FAILED') | 214Stable marriage problem
| 3python
| mndyh |
package main
import "fmt"
var a = []int{170, 45, 75, -90, -802, 24, 2, 66}
func main() {
fmt.Println("before:", a)
stoogesort(a)
fmt.Println("after: ", a)
fmt.Println("nyuk nyuk nyuk")
}
func stoogesort(a []int) {
last := len(a) - 1
if a[last] < a[0] {
a[0], a[last] = a[last], a[0]
}
if last > 1 {
t := len(a) / 3
stoogesort(a[:len(a)-t])
stoogesort(a[t:])
stoogesort(a[:len(a)-t])
}
} | 221Sorting algorithms/Stooge sort
| 0go
| p4cbg |
Array.prototype.timeoutSort = function (f) {
this.forEach(function (n) {
setTimeout(function () { f(n) }, 5 * n)
});
} | 220Sorting algorithms/Sleep sort
| 10javascript
| iekol |
bars <- intToUtf8(seq(0x2581, 0x2588), multiple = T)
n_chars <- length(bars)
sparkline <- function(numbers) {
mn <- min(numbers)
mx <- max(numbers)
interval <- mx - mn
bins <- sapply(
numbers,
function(i)
bars[[1 + min(n_chars - 1, floor((i - mn) / interval * n_chars))]]
)
sparkline <- paste0(bins, collapse = "")
return(sparkline)
}
sparkline(c(1, 2, 3, 4, 5, 6, 7, 8, 7, 6, 5, 4, 3, 2, 1))
sparkline(c(1.5, 0.5, 3.5, 2.5, 5.5, 4.5, 7.5, 6.5))
sparkline(c(0, 999, 4000, 4999, 7000, 7999))
sparkline(c(0, 0, 1, 1))
sparkline(c(0, 1, 19, 20)) | 217Sparkline in unicode
| 13r
| xh7w2 |
class Array
def strandsort
a = dup
result = []
until a.empty?
v = a.first
sublist, a = a.partition{|val| v=val if v<=val}
result.each_index do |idx|
break if sublist.empty?
result.insert(idx, sublist.shift) if sublist.first < result[idx]
end
result += sublist
end
result
end
def strandsort!
replace(strandsort)
end
end
p [1, 6, 3, 2, 1, 7, 5, 3].strandsort | 216Sorting algorithms/Strand sort
| 14ruby
| sbkqw |
Delimiters
Operators , =:= ==!= < <= > >= @= @== @!= @< @<= @> @>= + - * / += -= *= /= @+= @-= @*= @/= .. & &=?;: |
Braces ()[]{}
BlockComment /* */ --/* --*/
LineComment --
TokenStart abcedfghijklmnopqrstuvwxyz
TokenStart ABCDEFGHIJKLMNOPQRSTUVWXYZ_
TokenChar 0123456789
Escapes \rnt\'"eE | 219Special characters
| 2perl
| 5ytu2 |
import Data.List
import Control.Arrow
import Control.Monad
insertAt e k = uncurry(++).second ((e:).drop 1). splitAt k
swapElems :: [a] -> Int -> Int -> [a]
swapElems xs i j = insertAt (xs!!j) i $ insertAt (xs!!i) j xs
stoogeSort [] = []
stoogeSort [x] = [x]
stoogeSort xs = doss 0 (length xs - 1) xs
doss :: (Ord a) => Int -> Int -> [a] -> [a]
doss i j xs
| j-i>1 = doss i (j-t) $ doss (i+t) j $ doss i (j-t) xs'
| otherwise = xs'
where t = (j-i+1)`div`3
xs'
| xs!!j < xs!!i = swapElems xs i j
| otherwise = xs | 221Sorting algorithms/Stooge sort
| 8haskell
| fqpd1 |
null | 220Sorting algorithms/Sleep sort
| 11kotlin
| 1g2pd |
void selection_sort (int *a, int n) {
int i, j, m, t;
for (i = 0; i < n; i++) {
for (j = i, m = i; j < n; j++) {
if (a[j] < a[m]) {
m = j;
}
}
t = a[i];
a[i] = a[m];
a[m] = t;
}
}
int main () {
int a[] = {4, 65, 2, -31, 0, 99, 2, 83, 782, 1};
int n = sizeof a / sizeof a[0];
int i;
for (i = 0; i < n; i++)
printf(, a[i], i == n - 1 ? : );
selection_sort(a, n);
for (i = 0; i < n; i++)
printf(, a[i], i == n - 1 ? : );
return 0;
} | 226Sorting algorithms/Selection sort
| 5c
| dxrnv |
(defn get-code [c]
(case c
(\B \F \P \V) 1
(\C \G \J \K
\Q \S \X \Z) 2
(\D \T) 3
\L 4
(\M \N) 5
\R 6
nil))
(defn soundex [s]
(let [[f & s] (.toUpperCase s)]
(-> (map get-code s)
distinct
(concat , "0000")
(->> (cons f ,)
(remove nil? ,)
(take 4 ,)
(apply str ,))))) | 224Soundex
| 6clojure
| yia6b |
import java.util.Stack;
public class StackTest {
public static void main( final String[] args ) {
final Stack<String> stack = new Stack<String>();
System.out.println( "New stack empty? " + stack.empty() );
stack.push( "There can be only one" );
System.out.println( "Pushed stack empty? " + stack.empty() );
System.out.println( "Popped single entry: " + stack.pop() );
stack.push( "First" );
stack.push( "Second" );
System.out.println( "Popped entry should be second: " + stack.pop() ); | 212Stack
| 9java
| p47b3 |
public class Blah {
public static void main(String[] args) {
print2dArray(getSpiralArray(5));
}
public static int[][] getSpiralArray(int dimension) {
int[][] spiralArray = new int[dimension][dimension];
int numConcentricSquares = (int) Math.ceil((dimension) / 2.0);
int j;
int sideLen = dimension;
int currNum = 0;
for (int i = 0; i < numConcentricSquares; i++) { | 218Spiral matrix
| 9java
| nw1ih |
function sleeprint(n)
local t0 = os.time()
while os.time() - t0 <= n do
coroutine.yield(false)
end
print(n)
return true
end
coroutines = {}
for i=1, #arg do
wrapped = coroutine.wrap(sleeprint)
table.insert(coroutines, wrapped)
wrapped(tonumber(arg[i]))
end
done = false
while not done do
done = true
for i=#coroutines,1,-1 do
if coroutines[i]() then
table.remove(coroutines, i)
else
done = false
end
end
end | 220Sorting algorithms/Sleep sort
| 1lua
| arv1v |
var stack = [];
stack.push(1)
stack.push(2,3);
print(stack.pop()); | 212Stack
| 10javascript
| xhpw9 |
spiralArray = function (edge) {
var arr = Array(edge),
x = 0, y = edge,
total = edge * edge--,
dx = 1, dy = 0,
i = 0, j = 0;
while (y) arr[--y] = [];
while (i < total) {
arr[y][x] = i++;
x += dx; y += dy;
if (++j == edge) {
if (dy < 0) {x++; y++; edge -= 2}
j = dx; dx = -dy; dy = j; j = 0;
}
}
return arr;
} | 218Spiral matrix
| 10javascript
| 38qz0 |
int* patienceSort(int* arr,int size){
int decks[size][size],i,j,min,pickedRow;
int *count = (int*)calloc(sizeof(int),size),*sortedArr = (int*)malloc(size*sizeof(int));
for(i=0;i<size;i++){
for(j=0;j<size;j++){
if(count[j]==0 || (count[j]>0 && decks[j][count[j]-1]>=arr[i])){
decks[j][count[j]] = arr[i];
count[j]++;
break;
}
}
}
min = decks[0][count[0]-1];
pickedRow = 0;
for(i=0;i<size;i++){
for(j=0;j<size;j++){
if(count[j]>0 && decks[j][count[j]-1]<min){
min = decks[j][count[j]-1];
pickedRow = j;
}
}
sortedArr[i] = min;
count[pickedRow]--;
for(j=0;j<size;j++)
if(count[j]>0){
min = decks[j][count[j]-1];
pickedRow = j;
break;
}
}
free(count);
free(decks);
return sortedArr;
}
int main(int argC,char* argV[])
{
int *arr, *sortedArr, i;
if(argC==0)
printf();
else{
arr = (int*)malloc((argC-1)*sizeof(int));
for(i=1;i<=argC;i++)
arr[i-1] = atoi(argV[i]);
sortedArr = patienceSort(arr,argC-1);
for(i=0;i<argC-1;i++)
printf(,sortedArr[i]);
}
return 0;
} | 227Sorting algorithms/Patience sort
| 5c
| e7yav |
package main
import "fmt"
var a = []int{170, 45, 75, -90, -802, 24, 2, 66} | 222Sorting algorithms/Permutation sort
| 0go
| xhuwf |
bar = (''..'').to_a
loop {print 'Numbers please separated by space/commas: '
numbers = gets.split(/[\s,]+/).map(&:to_f)
min, max = numbers.minmax
puts % [min, max]
div = (max - min) / (bar.size - 1)
puts min == max? bar.last*numbers.size: numbers.map{|num| bar[((num - min) / div).to_i]}.join
} | 217Sparkline in unicode
| 14ruby
| ie1oh |
const BARS: &'static str = "";
fn print_sparkline(s: &str){
let v = BARS.chars().collect::<Vec<char>>();
let line: String = s.replace(",", " ").split(" ")
.filter(|x|!x.is_empty())
.map(|x| v[x.parse::<f64>().unwrap().ceil() as usize - 1])
.collect();
println!("{:?}", line);
}
fn main(){
let s1 = "1 2 3 4 5 6 7 8 7 6 5 4 3 2 1";
print_sparkline(s1);
let s2 = "1.5, 0.5 3.5, 2.5 5.5, 4.5 7.5, 6.5";
print_sparkline(s2);
} | 217Sparkline in unicode
| 15rust
| nwai4 |
class Person
def initialize(name)
@name = name
@fiance = nil
@preferences = []
@proposals = []
end
attr_reader :name, :proposals
attr_accessor :fiance, :preferences
def to_s
@name
end
def free
@fiance = nil
end
def single?
@fiance == nil
end
def engage(person)
self.fiance = person
person.fiance = self
end
def better_choice?(person)
@preferences.index(person) < @preferences.index(@fiance)
end
def propose_to(person)
puts if $DEBUG
@proposals << person
person.respond_to_proposal_from(self)
end
def respond_to_proposal_from(person)
if single?
puts if $DEBUG
engage(person)
elsif better_choice?(person)
puts if $DEBUG
@fiance.free
engage(person)
else
puts if $DEBUG
end
end
end
prefs = {
'abe' => %w[abi eve cath ivy jan dee fay bea hope gay],
'bob' => %w[cath hope abi dee eve fay bea jan ivy gay],
'col' => %w[hope eve abi dee bea fay ivy gay cath jan],
'dan' => %w[ivy fay dee gay hope eve jan bea cath abi],
'ed' => %w[jan dee bea cath fay eve abi ivy hope gay],
'fred' => %w[bea abi dee gay eve ivy cath jan hope fay],
'gav' => %w[gay eve ivy bea cath abi dee hope jan fay],
'hal' => %w[abi eve hope fay ivy cath jan bea gay dee],
'ian' => %w[hope cath dee gay bea abi fay ivy jan eve],
'jon' => %w[abi fay jan gay eve bea dee cath ivy hope],
'abi' => %w[bob fred jon gav ian abe dan ed col hal],
'bea' => %w[bob abe col fred gav dan ian ed jon hal],
'cath' => %w[fred bob ed gav hal col ian abe dan jon],
'dee' => %w[fred jon col abe ian hal gav dan bob ed],
'eve' => %w[jon hal fred dan abe gav col ed ian bob],
'fay' => %w[bob abe ed ian jon dan fred gav col hal],
'gay' => %w[jon gav hal fred bob abe col ed dan ian],
'hope' => %w[gav jon bob abe ian dan hal ed col fred],
'ivy' => %w[ian col hal gav fred bob abe ed jon dan],
'jan' => %w[ed hal gav abe bob jon col ian fred dan],
}
@men = Hash[
%w[abe bob col dan ed fred gav hal ian jon].collect do |name|
[name, Person.new(name)]
end
]
@women = Hash[
%w[abi bea cath dee eve fay gay hope ivy jan].collect do |name|
[name, Person.new(name)]
end
]
@men.each {|name, man| man.preferences = @women.values_at(*prefs[name])}
@women.each {|name, woman| woman.preferences = @men.values_at(*prefs[name])}
def match_couples(men, women)
men.each_value {|man| man.free}
women.each_value {|woman| woman.free}
while m = men.values.find {|man| man.single?} do
puts if $DEBUG
w = m.preferences.find {|woman| not m.proposals.include?(woman)}
m.propose_to(w)
end
end
match_couples @men, @women
@men.each_value.collect {|man| puts }
class Person
def more_preferable_people
( @preferences.partition {|p| better_choice?(p)} ).first
end
end
require 'set'
def stability(men)
unstable = Set.new
men.each_value do |man|
woman = man.fiance
puts if $DEBUG
man.more_preferable_people.each do |other_woman|
if other_woman.more_preferable_people.include?(man)
puts if $DEBUG
unstable << [man, other_woman]
end
end
woman.more_preferable_people.each do |other_man|
if other_man.more_preferable_people.include?(woman)
puts if $DEBUG
unstable << [other_man, woman]
end
end
end
if unstable.empty?
puts
else
puts
unstable.each do |a,b|
puts
end
end
end
stability @men
puts
def swap(m1, m2)
w1 = m1.fiance
w2 = m2.fiance
m1.fiance = w2
w1.fiance = m2
m2.fiance = w1
w2.fiance = m1
end
swap *@men.values_at('abe','bob')
@men.each_value.collect {|man| puts }
stability @men | 214Stable marriage problem
| 14ruby
| cft9k |
def factorial = { (it > 1) ? (2..it).inject(1) { i, j -> i*j }: 1 }
def makePermutation;
makePermutation = { list, i ->
def n = list.size()
if (n < 2) return list
def fact = factorial(n-1)
assert i < fact*n
def index = i.intdiv(fact)
[list[index]] + makePermutation(list[0..<index] + list[(index+1)..<n], i % fact)
}
def sorted = { a -> (1..<(a.size())).every { a[it-1] <= a[it] } }
def permutationSort = { a ->
def n = a.size()
def fact = factorial(n)
def permuteA = makePermutation.curry(a)
def pIndex = (0..<fact).find { print "."; sorted(permuteA(it)) }
permuteA(pIndex)
} | 222Sorting algorithms/Permutation sort
| 7groovy
| p49bo |
int pancake_sort(int *list, unsigned int length)
{
if(length<2)
return 0;
int i,a,max_num_pos,moves;
moves=0;
for(i=length;i>1;i--)
{
max_num_pos=0;
for(a=0;a<i;a++)
{
if(list[a]>list[max_num_pos])
max_num_pos=a;
}
if(max_num_pos==i-1)
continue;
if(max_num_pos)
{
moves++;
do_flip(list, length, max_num_pos+1);
}
moves++;
do_flip(list, length, i);
}
return moves;
} | 228Sorting algorithms/Pancake sort
| 5c
| xhmwu |
$ Item
@ Positional
% Associative
& Callable | 219Special characters
| 3python
| 4mz5k |
import java.util.Arrays;
public class Stooge {
public static void main(String[] args) {
int[] nums = {1, 4, 5, 3, -6, 3, 7, 10, -2, -5};
stoogeSort(nums);
System.out.println(Arrays.toString(nums));
}
public static void stoogeSort(int[] L) {
stoogeSort(L, 0, L.length - 1);
}
public static void stoogeSort(int[] L, int i, int j) {
if (L[j] < L[i]) {
int tmp = L[i];
L[i] = L[j];
L[j] = tmp;
}
if (j - i > 1) {
int t = (j - i + 1) / 3;
stoogeSort(L, i, j - t);
stoogeSort(L, i + t, j);
stoogeSort(L, i, j - t);
}
}
} | 221Sorting algorithms/Stooge sort
| 9java
| 0prse |
(import 'java.util.ArrayList)
(defn arr-swap! [#^ArrayList arr i j]
(let [t (.get arr i)]
(doto arr
(.set i (.get arr j))
(.set j t))))
(defn sel-sort!
([arr] (sel-sort! compare arr))
([cmp #^ArrayList arr]
(let [n (.size arr)]
(letfn [(move-min!
[start-i]
(loop [i start-i]
(when (< i n)
(when (< (cmp (.get arr i) (.get arr start-i)) 0)
(arr-swap! arr start-i i))
(recur (inc i)))))]
(doseq [start-i (range (dec n))]
(move-min! start-i))
arr)))) | 226Sorting algorithms/Selection sort
| 6clojure
| 6ob3q |
def mkSparks( numStr:String ) : String =
numStr.split( "[\\s,]+" ).map(_.toFloat) match {
case v if v.isEmpty => ""
case v if v.length == 1 => "\u2581"
case v =>
(for( i <- v;
s = "\u2581\u2582\u2583\u2584\u2585\u2586\u2587\u2588".toCharArray;
d = (v.max - v.min) / (s.length - 1)
) yield s( ((i - v.min) / d).toInt)).mkString
}
println( mkSparks( "1 2 3 4 5 6 7 8 7 6 5 4 3 2 1" ) )
println( mkSparks( "1.5, 0.5 3.5, 2.5 5.5, 4.5 7.5, 6.5" ) ) | 217Sparkline in unicode
| 16scala
| tsxfb |
object SMP extends App {
private def checkMarriages(): Unit =
if (check)
println("Marriages are stable")
else
println("Marriages are unstable")
private def swap() {
val girl1 = girls.head
val girl2 = girls(1)
val tmp = girl2 -> matches(girl1)
matches += girl1 -> matches(girl2)
matches += tmp
println(girl1 + " and " + girl2 + " have switched partners")
}
private type TM = scala.collection.mutable.TreeMap[String, String]
private def check: Boolean = {
if (!girls.toSet.subsetOf(matches.keySet) || !guys.toSet.subsetOf(matches.values.toSet))
return false
val invertedMatches = new TM
matches foreach { invertedMatches += _.swap }
for ((k, v) <- matches) {
val shePrefers = girlPrefers(k)
val sheLikesBetter = shePrefers.slice(0, shePrefers.indexOf(v))
val hePrefers = guyPrefers(v)
val heLikesBetter = hePrefers.slice(0, hePrefers.indexOf(k))
for (guy <- sheLikesBetter) {
val fiance = invertedMatches(guy)
val guy_p = guyPrefers(guy)
if (guy_p.indexOf(fiance) > guy_p.indexOf(k)) {
println(s"$k likes $guy better than $v and $guy likes $k better than their current partner")
return false
}
}
for (girl <- heLikesBetter) {
val fiance = matches(girl)
val girl_p = girlPrefers(girl)
if (girl_p.indexOf(fiance) > girl_p.indexOf(v)) {
println(s"$v likes $girl better than $k and $girl likes $v better than their current partner")
return false
}
}
}
true
}
private val guys = "abe" :: "bob" :: "col" :: "dan" :: "ed" :: "fred" :: "gav" :: "hal" :: "ian" :: "jon" :: Nil
private val girls = "abi" :: "bea" :: "cath" :: "dee" :: "eve" :: "fay" :: "gay" :: "hope" :: "ivy" :: "jan" :: Nil
private val guyPrefers = Map("abe" -> List("abi", "eve", "cath", "ivy", "jan", "dee", "fay", "bea", "hope", "gay"),
"bob" -> List("cath", "hope", "abi", "dee", "eve", "fay", "bea", "jan", "ivy", "gay"),
"col" -> List("hope", "eve", "abi", "dee", "bea", "fay", "ivy", "gay", "cath", "jan"),
"dan" -> List("ivy", "fay", "dee", "gay", "hope", "eve", "jan", "bea", "cath", "abi"),
"ed" -> List("jan", "dee", "bea", "cath", "fay", "eve", "abi", "ivy", "hope", "gay"),
"fred" -> List("bea", "abi", "dee", "gay", "eve", "ivy", "cath", "jan", "hope", "fay"),
"gav" -> List("gay", "eve", "ivy", "bea", "cath", "abi", "dee", "hope", "jan", "fay"),
"hal" -> List("abi", "eve", "hope", "fay", "ivy", "cath", "jan", "bea", "gay", "dee"),
"ian" -> List("hope", "cath", "dee", "gay", "bea", "abi", "fay", "ivy", "jan", "eve"),
"jon" -> List("abi", "fay", "jan", "gay", "eve", "bea", "dee", "cath", "ivy", "hope"))
private val girlPrefers = Map("abi" -> List("bob", "fred", "jon", "gav", "ian", "abe", "dan", "ed", "col", "hal"),
"bea" -> List("bob", "abe", "col", "fred", "gav", "dan", "ian", "ed", "jon", "hal"),
"cath" -> List("fred", "bob", "ed", "gav", "hal", "col", "ian", "abe", "dan", "jon"),
"dee" -> List("fred", "jon", "col", "abe", "ian", "hal", "gav", "dan", "bob", "ed"),
"eve" -> List("jon", "hal", "fred", "dan", "abe", "gav", "col", "ed", "ian", "bob"),
"fay" -> List("bob", "abe", "ed", "ian", "jon", "dan", "fred", "gav", "col", "hal"),
"gay" -> List("jon", "gav", "hal", "fred", "bob", "abe", "col", "ed", "dan", "ian"),
"hope" -> List("gav", "jon", "bob", "abe", "ian", "dan", "hal", "ed", "col", "fred"),
"ivy" -> List("ian", "col", "hal", "gav", "fred", "bob", "abe", "ed", "jon", "dan"),
"jan" -> List("ed", "hal", "gav", "abe", "bob", "jon", "col", "ian", "fred", "dan"))
private lazy val matches = {
val engagements = new TM
val freeGuys = scala.collection.mutable.Queue.empty ++ guys
while (freeGuys.nonEmpty) {
val guy = freeGuys.dequeue()
val guy_p = guyPrefers(guy)
var break = false
for (girl <- guy_p)
if (!break)
if (!engagements.contains(girl)) {
engagements(girl) = guy
break = true
}
else {
val other_guy = engagements(girl)
val girl_p = girlPrefers(girl)
if (girl_p.indexOf(guy) < girl_p.indexOf(other_guy)) {
engagements(girl) = guy
freeGuys += other_guy
break = true
}
}
}
engagements foreach { e => println(s"${e._1} is engaged to ${e._2}") }
engagements
}
checkMarriages()
swap()
checkMarriages()
} | 214Stable marriage problem
| 16scala
| u6yv8 |
(defn patience-insert
"Inserts a value into the sequence where each element is a stack.
Comparison replaces the definition of less than.
Uses the greedy strategy."
[comparison sequence value]
(lazy-seq
(if (empty? sequence) `((~value))
(let [stack (first sequence)
top (peek stack)]
(if (comparison value top)
(cons (conj stack value)
(rest sequence))
(cons stack
(patience-insert comparison
(rest sequence)
value)))))))
(defn patience-remove
"Removes the value from the top of the first stack it shows up in.
Leaves the stacks otherwise intact."
[sequence value]
(lazy-seq
(if (empty? sequence) nil
(let [stack (first sequence)
top (peek stack)]
(if (= top value)
(let [left-overs (pop stack)]
(if (empty? left-overs)
(rest sequence)
(cons left-overs
(rest sequence))))
(cons stack
(patience-remove (rest sequence)
value)))))))
(defn patience-recover
"Builds a sorted sequence from a list of patience stacks.
The given comparison takes the place of 'less than'"
[comparison sequence]
(loop [sequence sequence
sorted []]
(if (empty? sequence) sorted
(let [smallest (reduce #(if (comparison %1 %2) %1 %2)
(map peek sequence))
remaining (patience-remove sequence smallest)]
(recur remaining
(conj sorted smallest))))))
(defn patience-sort
"Sorts the sequence by comparison.
First builds the list of valid patience stacks.
Then recovers the sorted list from those.
If you don't supply a comparison, assumes less than."
([comparison sequence]
(->> (reduce (comp doall
(partial patience-insert comparison))
nil
sequence)
(patience-recover comparison)))
([sequence]
(patience-sort < sequence)))
(println (patience-sort [4 65 2 -31 0 99 83 782 1])) | 227Sorting algorithms/Patience sort
| 6clojure
| 0p2sj |
import Control.Monad
permutationSort l = head [p | p <- permute l, sorted p]
sorted (e1: e2: r) = e1 <= e2 && sorted (e2: r)
sorted _ = True
permute = foldM (flip insert) []
insert e [] = return [e]
insert e l@(h: t) = return (e: l) `mplus`
do { t' <- insert e t; return (h: t') } | 222Sorting algorithms/Permutation sort
| 8haskell
| yiw66 |
val n = 1 + 2 | 219Special characters
| 14ruby
| rc6gs |
function stoogeSort (array, i, j) {
if (j === undefined) {
j = array.length - 1;
}
if (i === undefined) {
i = 0;
}
if (array[j] < array[i]) {
var aux = array[i];
array[i] = array[j];
array[j] = aux;
}
if (j - i > 1) {
var t = Math.floor((j - i + 1) / 3);
stoogeSort(array, i, j-t);
stoogeSort(array, i+t, j);
stoogeSort(array, i, j-t);
}
}; | 221Sorting algorithms/Stooge sort
| 10javascript
| dxbnu |
package main
import "fmt"
var a = []int{170, 45, 75, -90, -802, 24, 2, 66}
func main() {
fmt.Println("before:", a)
for inc := len(a) / 2; inc > 0; inc = (inc + 1) * 5 / 11 {
for i := inc; i < len(a); i++ {
j, temp := i, a[i]
for ; j >= inc && a[j-inc] > temp; j -= inc {
a[j] = a[j-inc]
}
a[j] = temp
}
}
fmt.Println("after: ", a)
} | 223Sorting algorithms/Shell sort
| 0go
| dxhne |
null | 218Spiral matrix
| 11kotlin
| sbjq7 |
package main
import (
"bytes"
"encoding/binary"
"fmt"
) | 225Sorting algorithms/Radix sort
| 0go
| u60vt |
import java.util.List;
import java.util.ArrayList;
import java.util.Arrays;
public class PermutationSort
{
public static void main(String[] args)
{
int[] a={3,2,1,8,9,4,6};
System.out.println("Unsorted: " + Arrays.toString(a));
a=pSort(a);
System.out.println("Sorted: " + Arrays.toString(a));
}
public static int[] pSort(int[] a)
{
List<int[]> list=new ArrayList<int[]>();
permute(a,a.length,list);
for(int[] x: list)
if(isSorted(x))
return x;
return a;
}
private static void permute(int[] a, int n, List<int[]> list)
{
if (n == 1)
{
int[] b=new int[a.length];
System.arraycopy(a, 0, b, 0, a.length);
list.add(b);
return;
}
for (int i = 0; i < n; i++)
{
swap(a, i, n-1);
permute(a, n-1, list);
swap(a, i, n-1);
}
}
private static boolean isSorted(int[] a)
{
for(int i=1;i<a.length;i++)
if(a[i-1]>a[i])
return false;
return true;
}
private static void swap(int[] arr,int i, int j)
{
int temp=arr[i];
arr[i]=arr[j];
arr[j]=temp;
}
} | 222Sorting algorithms/Permutation sort
| 9java
| dxkn9 |
val n = 1 + 2 | 219Special characters
| 16scala
| kuchk |
' ' String literal
Identifier
[ ] Identifier
` ` Identifier
? Numbered host parameter
: Named host parameter
$ Named host parameter
@ Named host parameter
( ) Parentheses
+ Add
- Subtract/negative
* Multiply
/ Divide
% Modulo
& Bitwise AND
| Bitwise OR
~ Bitwise NOT
<< Left shift
>> Right shift
= Equal
== Equal
<> Not equal
!= Not equal
< Less
> Greater
<= Less or equal
>= Greater or equal
|| String concatenation | 219Special characters
| 19sql
| 1gvpg |
import Data.List
shellSort xs = foldr (invColumnize (map (foldr insert []))) xs gaps
where gaps = takeWhile (< length xs) $ iterate (succ.(3*)) 1
invColumnize f k = concat. transpose. f. transpose
. takeWhile (not.null). unfoldr (Just. splitAt k) | 223Sorting algorithms/Shell sort
| 8haskell
| 5yiug |
null | 212Stack
| 11kotlin
| 7lur4 |
def radixSort = { final radixExponent, list ->
def fromBuckets = new TreeMap([0:list])
def toBuckets = new TreeMap()
final radix = 2**radixExponent
final mask = radix - 1
final radixDigitSize = (int)Math.ceil(64/radixExponent)
final digitWidth = radixExponent
(0..<radixDigitSize).each { radixDigit ->
fromBuckets.values().findAll { it != null }.flatten().each {
print '.'
long bucketNumber = (long)((((long)it) >>> digitWidth*radixDigit) & mask)
toBuckets[bucketNumber] = toBuckets[bucketNumber] ?: []
toBuckets[bucketNumber] << it
}
(fromBuckets, toBuckets) = [toBuckets, fromBuckets]
toBuckets.clear()
}
final overflow = 2**(63 % radixExponent)
final pos = {it < overflow}
final neg = {it >= overflow}
final keys = fromBuckets.keySet()
final twosComplIndx = [] + (keys.findAll(neg)) + (keys.findAll(pos))
twosComplIndx.collect { fromBuckets[it] }.findAll { it != null }.flatten()
} | 225Sorting algorithms/Radix sort
| 7groovy
| 9dem4 |
null | 222Sorting algorithms/Permutation sort
| 11kotlin
| 0pgsf |
(defn pancake-sort
[arr]
(if (= 1 (count arr))
arr
(when-let [mx (apply max arr)]
(let [tk (split-with #(not= mx %) arr)
tail (second tk)
torev (concat (first tk) (take 1 tail))
head (reverse torev)]
(cons mx (pancake-sort (concat (drop 1 head) (drop 1 tail)))))))) | 228Sorting algorithms/Pancake sort
| 6clojure
| oav8j |
null | 221Sorting algorithms/Stooge sort
| 11kotlin
| e7va4 |
1 while ($_ = shift and @ARGV and !fork);
sleep $_;
print "$_\n";
wait; | 220Sorting algorithms/Sleep sort
| 2perl
| mnsyz |
av, sn = math.abs, function(s) return s~=0 and s/av(s) or 0 end
function sindex(y, x) | 218Spiral matrix
| 1lua
| 0phsd |
import Data.Bits (Bits(testBit, bitSize))
import Data.List (partition)
lsdSort :: (Ord a, Bits a) => [a] -> [a]
lsdSort = fixSort positiveLsdSort
msdSort :: (Ord a, Bits a) => [a] -> [a]
msdSort = fixSort positiveMsdSort
fixSort sorter list = uncurry (flip (++)) (break (< 0) (sorter list))
positiveLsdSort :: (Bits a) => [a] -> [a]
positiveLsdSort list = foldl step list [0..bitSize (head list)] where
step list bit = uncurry (++) (partition (not . flip testBit bit) list)
positiveMsdSort :: (Bits a) => [a] -> [a]
positiveMsdSort list = aux (bitSize (head list) - 1) list where
aux _ [] = []
aux (-1) list = list
aux bit list = aux (bit - 1) lower ++ aux (bit - 1) upper where
(lower, upper) = partition (not . flip testBit bit) list | 225Sorting algorithms/Radix sort
| 8haskell
| wjced |
null | 222Sorting algorithms/Permutation sort
| 1lua
| 81r0e |
local Y = function (f)
return (function(x) return x(x) end)(function(x) return f(function(...) return x(x)(...) end) end)
end
function stoogesort(L, pred)
pred = pred or function(a,b) return a < b end
Y(function(recurse)
return function(i,j)
if pred(L[j], L[i]) then
L[j],L[i] = L[i],L[j]
end
if j - i > 1 then
local t = math.floor((j - i + 1)/3)
recurse(i,j-t)
recurse(i+t,j)
recurse(i,j-t)
end
end
end)(1,#L)
return L
end
print(unpack(stoogesort{9,7,8,5,6,3,4,2,1,0})) | 221Sorting algorithms/Stooge sort
| 1lua
| wjuea |
void main() {
List<int> a = selectionSort([1100, 2, 56, 200, -52, 3, 99, 33, 177, -199]);
print('$a');
}
selectionSort(List<int> array){
for(int currentPlace = 0;currentPlace<array.length-1;currentPlace++){
int smallest = 4294967296; | 226Sorting algorithms/Selection sort
| 18dart
| sb2q6 |
class Person {
let name:String
var candidateIndex = 0
var fiance:Person?
var candidates = [Person]()
init(name:String) {
self.name = name
}
func rank(p:Person) -> Int {
for (i, candidate) in enumerate(self.candidates) {
if candidate === p {
return i
}
}
return self.candidates.count + 1
}
func prefers(p:Person) -> Bool {
if let fiance = self.fiance {
return self.rank(p) < self.rank(fiance)
}
return false
}
func nextCandidate() -> Person? {
if self.candidateIndex >= self.candidates.count {
return nil
}
return self.candidates[candidateIndex++]
}
func engageTo(p:Person) {
p.fiance?.fiance = nil
p.fiance = self
self.fiance?.fiance = nil
self.fiance = p
}
func swapWith(p:Person) {
let thisFiance = self.fiance
let pFiance = p.fiance
println("\(self.name) swapped partners with \(p.name)")
if pFiance!= nil && thisFiance!= nil {
self.engageTo(pFiance!)
p.engageTo(thisFiance!)
}
}
}
func isStable(guys:[Person], gals:[Person]) -> Bool {
for guy in guys {
for gal in gals {
if guy.prefers(gal) && gal.prefers(guy) {
return false
}
}
}
return true
}
func engageEveryone(guys:[Person]) {
var done = false
while!done {
done = true
for guy in guys {
if guy.fiance == nil {
done = false
if let gal = guy.nextCandidate() {
if gal.fiance == nil || gal.prefers(guy) {
guy.engageTo(gal)
}
}
}
}
}
}
func doMarriage() {
let abe = Person(name: "Abe")
let bob = Person(name: "Bob")
let col = Person(name: "Col")
let dan = Person(name: "Dan")
let ed = Person(name: "Ed")
let fred = Person(name: "Fred")
let gav = Person(name: "Gav")
let hal = Person(name: "Hal")
let ian = Person(name: "Ian")
let jon = Person(name: "Jon")
let abi = Person(name: "Abi")
let bea = Person(name: "Bea")
let cath = Person(name: "Cath")
let dee = Person(name: "Dee")
let eve = Person(name: "Eve")
let fay = Person(name: "Fay")
let gay = Person(name: "Gay")
let hope = Person(name: "Hope")
let ivy = Person(name: "Ivy")
let jan = Person(name: "Jan")
abe.candidates = [abi, eve, cath, ivy, jan, dee, fay, bea, hope, gay]
bob.candidates = [cath, hope, abi, dee, eve, fay, bea, jan, ivy, gay]
col.candidates = [hope, eve, abi, dee, bea, fay, ivy, gay, cath, jan]
dan.candidates = [ivy, fay, dee, gay, hope, eve, jan, bea, cath, abi]
ed.candidates = [jan, dee, bea, cath, fay, eve, abi, ivy, hope, gay]
fred.candidates = [bea, abi, dee, gay, eve, ivy, cath, jan, hope, fay]
gav.candidates = [gay, eve, ivy, bea, cath, abi, dee, hope, jan, fay]
hal.candidates = [abi, eve, hope, fay, ivy, cath, jan, bea, gay, dee]
ian.candidates = [hope, cath, dee, gay, bea, abi, fay, ivy, jan, eve]
jon.candidates = [abi, fay, jan, gay, eve, bea, dee, cath, ivy, hope]
abi.candidates = [bob, fred, jon, gav, ian, abe, dan, ed, col, hal]
bea.candidates = [bob, abe, col, fred, gav, dan, ian, ed, jon, hal]
cath.candidates = [fred, bob, ed, gav, hal, col, ian, abe, dan, jon]
dee.candidates = [fred, jon, col, abe, ian, hal, gav, dan, bob, ed]
eve.candidates = [jon, hal, fred, dan, abe, gav, col, ed, ian, bob]
fay.candidates = [bob, abe, ed, ian, jon, dan, fred, gav, col, hal]
gay.candidates = [jon, gav, hal, fred, bob, abe, col, ed, dan, ian]
hope.candidates = [gav, jon, bob, abe, ian, dan, hal, ed, col, fred]
ivy.candidates = [ian, col, hal, gav, fred, bob, abe, ed, jon, dan]
jan.candidates = [ed, hal, gav, abe, bob, jon, col, ian, fred, dan]
let guys = [abe, bob, col, dan, ed, fred, gav, hal, ian, jon]
let gals = [abi, bea, cath, dee, eve, fay, gay, hope, ivy, jan]
engageEveryone(guys)
for guy in guys {
println("\(guy.name) is engaged to \(guy.fiance!.name)")
}
println("Stable = \(isStable(guys, gals))")
jon.swapWith(fred)
println("Stable = \(isStable(guys, gals))")
}
doMarriage() | 214Stable marriage problem
| 17swift
| 9dfmj |
package main
import (
"fmt"
"container/heap"
"sort"
)
type IntPile []int
func (self IntPile) Top() int { return self[len(self)-1] }
func (self *IntPile) Pop() int {
x := (*self)[len(*self)-1]
*self = (*self)[:len(*self)-1]
return x
}
type IntPilesHeap []IntPile
func (self IntPilesHeap) Len() int { return len(self) }
func (self IntPilesHeap) Less(i, j int) bool { return self[i].Top() < self[j].Top() }
func (self IntPilesHeap) Swap(i, j int) { self[i], self[j] = self[j], self[i] }
func (self *IntPilesHeap) Push(x interface{}) { *self = append(*self, x.(IntPile)) }
func (self *IntPilesHeap) Pop() interface{} {
x := (*self)[len(*self)-1]
*self = (*self)[:len(*self)-1]
return x
}
func patience_sort (n []int) {
var piles []IntPile | 227Sorting algorithms/Patience sort
| 0go
| 9d1mt |
public static void shell(int[] a) {
int increment = a.length / 2;
while (increment > 0) {
for (int i = increment; i < a.length; i++) {
int j = i;
int temp = a[i];
while (j >= increment && a[j - increment] > temp) {
a[j] = a[j - increment];
j = j - increment;
}
a[j] = temp;
}
if (increment == 2) {
increment = 1;
} else {
increment *= (5.0 / 11);
}
}
} | 223Sorting algorithms/Shell sort
| 9java
| 9dxmu |
public static int[] sort(int[] old) { | 225Sorting algorithms/Radix sort
| 9java
| kuzhm |
import Control.Monad.ST
import Control.Monad
import Data.Array.ST
import Data.List
import qualified Data.Set as S
newtype Pile a = Pile [a]
instance Eq a => Eq (Pile a) where
Pile (x:_) == Pile (y:_) = x == y
instance Ord a => Ord (Pile a) where
Pile (x:_) `compare` Pile (y:_) = x `compare` y
patienceSort :: Ord a => [a] -> [a]
patienceSort = mergePiles . sortIntoPiles where
sortIntoPiles :: Ord a => [a] -> [[a]]
sortIntoPiles lst = runST $ do
piles <- newSTArray (1, length lst) []
let bsearchPiles x len = aux 1 len where
aux lo hi | lo > hi = return lo
| otherwise = do
let mid = (lo + hi) `div` 2
m <- readArray piles mid
if head m < x then
aux (mid+1) hi
else
aux lo (mid-1)
f len x = do
i <- bsearchPiles x len
writeArray piles i . (x:) =<< readArray piles i
return $ if i == len+1 then len+1 else len
len <- foldM f 0 lst
e <- getElems piles
return $ take len e
where newSTArray :: Ix i => (i,i) -> e -> ST s (STArray s i e)
newSTArray = newArray
mergePiles :: Ord a => [[a]] -> [a]
mergePiles = unfoldr f . S.fromList . map Pile where
f pq = case S.minView pq of
Nothing -> Nothing
Just (Pile [x], pq') -> Just (x, pq')
Just (Pile (x:xs), pq') -> Just (x, S.insert (Pile xs) pq')
main :: IO ()
main = print $ patienceSort [4, 65, 2, -31, 0, 99, 83, 782, 1] | 227Sorting algorithms/Patience sort
| 8haskell
| b5tk2 |
from time import sleep
from threading import Timer
def sleepsort(values):
sleepsort.result = []
def add1(x):
sleepsort.result.append(x)
mx = values[0]
for v in values:
if mx < v: mx = v
Timer(v, add1, [v]).start()
sleep(mx+1)
return sleepsort.result
if __name__ == '__main__':
x = [3,2,4,7,3,6,9,1]
if sleepsort(x) == sorted(x):
print('sleep sort worked for:',x)
else:
print('sleep sort FAILED for:',x) | 220Sorting algorithms/Sleep sort
| 3python
| 9d0mf |
function shellSort (a) {
for (var h = a.length; h > 0; h = parseInt(h / 2)) {
for (var i = h; i < a.length; i++) {
var k = a[i];
for (var j = i; j >= h && k < a[j - h]; j -= h)
a[j] = a[j - h];
a[j] = k;
}
}
return a;
}
var a = [];
var n = location.href.match(/\?(\d+)|$/)[1] || 10;
for (var i = 0; i < n; i++)
a.push(parseInt(Math.random() * 100));
shellSort(a);
document.write(a.join(" ")); | 223Sorting algorithms/Shell sort
| 10javascript
| u6ovb |
null | 225Sorting algorithms/Radix sort
| 11kotlin
| g9i4d |
require 'thread'
nums = ARGV.collect(&:to_i)
sorted = []
mutex = Mutex.new
threads = nums.collect do |n|
Thread.new do
sleep 0.01 * n
mutex.synchronize {sorted << n}
end
end
threads.each {|t| t.join}
p sorted | 220Sorting algorithms/Sleep sort
| 14ruby
| ltocl |
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