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ALGOL 68
ArkScript
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AWK
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BASIC
Berry
brainfuck
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C#
C++
Civet
Clojure
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Coconut
Common Lisp
Crystal
D
Dart
Elixir
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F#
Factor
Forth
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Go
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iogii
J
Janet
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jq
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K
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R
Raku
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Ruby
Rust
Scheme
sed
SQL
Swift
Tcl
TeX
V
VimL
Wren
Zig
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05AB1E
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
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All
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Alphabetic Numbers
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Connect Four
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
Apéry’s Constant
Binary Lambda Calculus
Chess960 Decoder
Chess960 Encoder
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
Ulam Sequence
Hole
Golfer
Bytes
Time
Submitted
Leap Years
primo-ppcg
134
1,700ms
27 days ago
Leap Years
kcinnu
125
1,810ms
30 May 2026
Leap Years
denkyuu1
326
1,822ms
27 May 2026
Leap Years
albanian-laundromat
130
1,699ms
20 May 2026
Leap Years
JayXon
💎
120
1,678ms
8 May 2026
Leap Years
Steffan153
🥈
121
1,645ms
8 May 2026
Leap Years
Lydxn
🥉
123
1,653ms
8 May 2026
Leap Years
Shanethegamer
935
1,723ms
2 May 2026
Leap Years
MeWhenI
🥉
123
1,775ms
19 Apr 2026
Leap Years
Yewzir
136
1,727ms
19 Apr 2026
Leap Years
retrohun
1,050
1,765ms
18 Apr 2026
Leap Years
jared-hughes
133
1,830ms
18 Apr 2026
Leap Years
msbranicky
139
1,912ms
15 Apr 2026
Leap Years
KatieLG
1,075
1,801ms
15 Apr 2026
Leap Years
prestosilver
127
1,767ms
15 Apr 2026
Leap Years
emgordon154
133
1,665ms
15 Apr 2026
Leap Years
HumanoidCPU
936
1,733ms
15 Apr 2026
Leap Years
CaedenHarper
936
1,782ms
14 Apr 2026
Leap Years
dokutan
125
1,971ms
14 Apr 2026
Leap Years
DialFrost
🥉
123
1,693ms
13 Sep 2025