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ALGOL 68
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brainfuck
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APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
Luau
Odin
Picat
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Rebol
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Stax
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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Continued Fractions
CSS Colors
Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
Gray Code Decoder
Gray Code Encoder
Happy Numbers
Happy Numbers (Long)
Hexdump
Hilbert Curve
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kaprekar Numbers
Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
Minesweeper
Morse Decoder
Morse Encoder
Multitap Input
Musical Chords
N Queens
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Partition Numbers
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Polyominoes
Prime Numbers
Prime Numbers (Long)
Proximity Grid
QR Decoder
Quine
Recamán
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
Rock-paper-scissors-Spock-lizard
Roman to Arabic
ROT13
Rule 110
Scrambled Sort
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars GPT
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Taxicab Numbers
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
NFA Simulator
Nim
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Collatz
roupiq
95
61ms
11 days ago
Collatz
Herbert00709
91
61ms
11 days ago
Collatz
CoderColby
107
1,390ms
23 days ago
Collatz
liamjermy6
98
64ms
2 Apr 2026
Collatz
vyx77
110
61ms
2 Mar 2026
Collatz
C32ardash
118
1,386ms
20 Feb 2026
Collatz
Shengxuan-Zhang
108
63ms
20 Feb 2026
Collatz
dokutan
96
76ms
8 Feb 2026
Collatz
emgordon154
97
60ms
8 Feb 2026
Collatz
Nwo5-trg
105
61ms
4 Feb 2026
Collatz
novaspaced
115
63ms
30 Jan 2026
Collatz
zzz13579zzz
104
62ms
29 Jan 2026
Collatz
samuel-thesing
109
1,359ms
28 Jan 2026
Collatz
IsGlitchy
351
1,363ms
29 Dec 2025
Collatz
AdrienHache
94
60ms
27 Dec 2025
Collatz
balloffur
110
441ms
23 Dec 2025
Collatz
kellantech
103
56ms
16 Dec 2025
Collatz
TheZwierzLF
120
1,382ms
13 Dec 2025
Collatz
eddienoon
127
65ms
23 Nov 2025
Collatz
6512345
108
64ms
8 Nov 2025
Collatz
Blockyheadman
109
64ms
6 Nov 2025
Collatz
Maximizer02
118
2,502ms
29 Oct 2025
Collatz
KasperKivimaeki
93
63ms
26 Oct 2025
Collatz
snoozingnewt
101
452ms
6 Oct 2025
Collatz
Yax42
98
63ms
4 Oct 2025
Collatz
CaedenHarper
107
62ms
28 Sep 2025
Collatz
matejmatik123
108
1,361ms
26 Sep 2025
Collatz
kmathis22
117
2,448ms
25 Sep 2025
Collatz
Arkadios200
121
1,396ms
21 Sep 2025
Collatz
timhaj
98
64ms
12 Sep 2025
Collatz
michaelmoynihan
101
433ms
3 Sep 2025
Collatz
CuboidRaptor
436
1,395ms
28 Aug 2025
Collatz
Ohh-n
114
64ms
9 Aug 2025
Collatz
gjoacorp
103
59ms
4 Aug 2025
Collatz
Bpc-CPU
113
65ms
11 Jul 2025
Collatz
fuzzylojik-golf
96
65ms
14 Jun 2025
Collatz
strogor
140
1,405ms
13 Jun 2025
Collatz
sean-niemann
93
62ms
9 Jun 2025
Collatz
PxL801
462
1,419ms
5 May 2025
Collatz
SamNew01
432
1,400ms
5 May 2025
Collatz
cuzdav
98
61ms
4 May 2025
Collatz
meh-mf
397
1,385ms
4 May 2025
Collatz
0dyse
115
63ms
23 Apr 2025
Collatz
heanyang1
117
67ms
20 Apr 2025
Collatz
ShinyHunter04
296
1,403ms
8 Apr 2025
Collatz
kevinnaviapaiva
208
1,363ms
6 Mar 2025
Collatz
snyderek
🥇
89
60ms
19 Feb 2025
Collatz
domi-s
135
1,363ms
9 Feb 2025
Collatz
erikji
112
450ms
4 Feb 2025
Collatz
yeminghan2021
99
57ms
3 Feb 2025
Collatz
ComputerKWasTaken
122
2,856ms
20 Jan 2025
Collatz
OiHarv
289
1,424ms
14 Dec 2024
Collatz
08jne01
116
58ms
21 Nov 2024
Collatz
jameswmccarty
148
65ms
24 Sep 2024
Collatz
rethaliate
130
66ms
21 Sep 2024
Collatz
Mabeloid
4,269
1,382ms
17 Sep 2024
Collatz
Santaclaus3dprints
134
1,396ms
10 Sep 2024
Collatz
BlankSpruce
96
62ms
20 Aug 2024
Collatz
ibrahimhanifceker
107
64ms
9 Aug 2024
Collatz
zygoloid
94
62ms
5 Aug 2024
Collatz
LHLaurini
104
55ms
30 Jul 2024
Collatz
OwenElliottDev
126
57ms
25 Jul 2024
Collatz
joseph-w0ng
153
1,383ms
5 Jul 2024
Collatz
bac0id
101
63ms
29 Jun 2024
Collatz
eMGeeneer
101
416ms
27 Jun 2024
Collatz
noahgitsham
125
1,363ms
20 Jun 2024
Collatz
elttil
107
67ms
12 Jun 2024
Collatz
ovs-code
92
63ms
3 Jun 2024
Collatz
tailorspy
93
55ms
27 May 2024
Collatz
HumanoidCPU
101
64ms
6 May 2024
Collatz
Alex-Huggett
153
1,399ms
14 Apr 2024
Collatz
tik25
148
1,403ms
28 Mar 2024
Collatz
KatieLG
4,281
1,407ms
23 Mar 2024
Collatz
Mandrzejy
95
59ms
22 Mar 2024
Collatz
trinityy-7
118
64ms
7 Mar 2024
Collatz
mathisfun271
156
62ms
19 Feb 2024
Collatz
oceko
98
58ms
19 Feb 2024
Collatz
NormalDoctor
125
60ms
10 Jan 2024
Collatz
kkoenig
96
62ms
21 Dec 2023
Collatz
AsbestosSniffer
118
1,357ms
3 Dec 2023
Collatz
4QT0R
92
61ms
23 Nov 2023
Collatz
GolfGPT
126
1,348ms
19 Nov 2023
Collatz
MateuszPietrzak
96
63ms
18 Nov 2023
Collatz
wojtekmal
101
63ms
15 Nov 2023
Collatz
Yewzir
96
71ms
11 Nov 2023
Collatz
madeforlosers
109
61ms
8 Nov 2023
Collatz
arealhero
186
63ms
3 Nov 2023
Collatz
wearsunscreen
133
64ms
19 Oct 2023
Collatz
09cf
91
61ms
4 Oct 2023
Collatz
MEarley
166
1,397ms
19 Sep 2023
Collatz
dranjohn
113
425ms
17 Sep 2023
Collatz
Widgitty
103
421ms
1 Sep 2023
Collatz
msbranicky
125
65ms
20 Aug 2023
Collatz
Pyro569
119
64ms
29 Jul 2023
Collatz
Walter225
100
62ms
25 Jul 2023
Collatz
fkantelberg
114
64ms
15 Jul 2023
Collatz
namcartoon06
110
65ms
30 Jun 2023
Collatz
oofsamy
131
63ms
25 Jun 2023
Collatz
AlexanderFair
120
1,413ms
21 Jun 2023
Collatz
jorbDehmel
109
59ms
17 Jun 2023