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Hy
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12 Days of Christmas
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99 Bottles of Beer
Abundant Numbers
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Alphabetic Numbers
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Chess Move Validation
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
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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
Nim
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
Ulam Sequence
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
Langton’s Ant
Lyndon Factorization
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Thue–Morse Constant
Turtle
Tutorial
Yellowstone Permutation
Hole
Golfer
Bytes
Time
Submitted
Happy Numbers (Long)
JOrE20
78
160ms
5 hours ago
Happy Numbers (Long)
PeterMyler
87
20ms
5 hours ago
Happy Numbers (Long)
RarePlutonian
99
20ms
24 hours ago
Happy Numbers (Long)
Edjyzod
101
22ms
31 hours ago
Happy Numbers (Long)
christos-cantina-security
100
15ms
15 days ago
Happy Numbers (Long)
jordansafer
90
13ms
20 days ago
Happy Numbers (Long)
Florian-Mt
135
23ms
26 Aug 2026
Happy Numbers (Long)
ryyyn
73
183ms
26 Aug 2026
Happy Numbers (Long)
egu555
87
257ms
21 Aug 2026
Happy Numbers (Long)
jenova-gemini
88
21ms
19 Aug 2026
Happy Numbers (Long)
retrohun
80
333ms
17 Aug 2026
Happy Numbers (Long)
ComradeSquirrel
88
79ms
7 Aug 2026
Happy Numbers (Long)
solisolu
80
21ms
7 Aug 2026
Happy Numbers (Long)
Europe2048
88
406ms
27 Jul 2026
Happy Numbers (Long)
lemmaandrew
93
20ms
18 Jul 2026
Happy Numbers (Long)
JadonKJones
130
19ms
15 Jul 2026
Happy Numbers (Long)
codereport
78
242ms
30 Jun 2026
Happy Numbers (Long)
zzh1996
75
174ms
18 Jun 2026
Happy Numbers (Long)
sisyphus-ppcg
🥇
72
152ms
17 Jun 2026
Happy Numbers (Long)
arincon-dev
89
21ms
10 Jun 2026
Happy Numbers (Long)
EDZ94
89
22ms
10 Jun 2026
Happy Numbers (Long)
GuillaumeEven
244
124ms
10 Jun 2026
Happy Numbers (Long)
alejnp
118
359ms
10 Jun 2026
Happy Numbers (Long)
Mefred
206
15ms
3 Jun 2026
Happy Numbers (Long)
ninjaprawn
156
16ms
28 May 2026
Happy Numbers (Long)
arjunarya1
116
18ms
27 May 2026
Happy Numbers (Long)
TheSecondComing123
83
22ms
23 May 2026
Happy Numbers (Long)
zgialor-lab
106
25ms
21 May 2026
Happy Numbers (Long)
oaiqjuy
81
228ms
19 May 2026
Happy Numbers (Long)
sisyphus-gpt
78
256ms
18 May 2026
Happy Numbers (Long)
ahmetdemirag
75
1,148ms
11 May 2026
Happy Numbers (Long)
BrunoVisnadi
78
243ms
25 Apr 2026
Happy Numbers (Long)
vang1ong7ang
79
225ms
25 Apr 2026
Happy Numbers (Long)
cuvam
131
16ms
20 Apr 2026
Happy Numbers (Long)
scpchicken
81
317ms
19 Apr 2026
Happy Numbers (Long)
dcc5480
118
24ms
16 Apr 2026
Happy Numbers (Long)
lelbal
93
338ms
15 Apr 2026
Happy Numbers (Long)
blaztoma
78
210ms
14 Apr 2026
Happy Numbers (Long)
Mikey-Beep
112
18ms
8 Apr 2026
Happy Numbers (Long)
madeforlosers
116
25ms
7 Apr 2026
Happy Numbers (Long)
StefanHabel
81
354ms
5 Apr 2026
Happy Numbers (Long)
Andrey2001
85
21ms
1 Apr 2026
Happy Numbers (Long)
SectorCorruptor
84
305ms
24 Mar 2026
Happy Numbers (Long)
Emutis
100
21ms
21 Mar 2026
Happy Numbers (Long)
madex
86
20ms
15 Mar 2026
Happy Numbers (Long)
dokutan
81
329ms
13 Mar 2026
Happy Numbers (Long)
tomh1012
115
23ms
24 Feb 2026
Happy Numbers (Long)
FoxInTheClouds
82
221ms
13 Feb 2026
Happy Numbers (Long)
Flekay
81
334ms
12 Feb 2026
Happy Numbers (Long)
Steffan153
73
172ms
11 Feb 2026
Happy Numbers (Long)
77Tigers
80
300ms
13 Jan 2026
Happy Numbers (Long)
plcc0
79
256ms
12 Jan 2026
Happy Numbers (Long)
CornerMercury
79
271ms
29 Dec 2025
Happy Numbers (Long)
NoneTheFewer
149
38ms
25 Dec 2025
Happy Numbers (Long)
TheZwierzLF
125
100ms
20 Dec 2025
Happy Numbers (Long)
kurkale6ka
564
10ms
10 Dec 2025
Happy Numbers (Long)
Lv0Sys
85
23ms
5 Dec 2025
Happy Numbers (Long)
FortuiteMan
82
302ms
5 Dec 2025
Happy Numbers (Long)
Mukundan314
75
206ms
5 Dec 2025
Happy Numbers (Long)
HPWiz
🥇
72
139ms
5 Dec 2025
Happy Numbers (Long)
4atj
🥇
72
153ms
4 Dec 2025
Happy Numbers (Long)
Seek64
73
177ms
4 Dec 2025
Happy Numbers (Long)
lukegustafson
73
175ms
4 Dec 2025
Happy Numbers (Long)
sunleonid
🥇
72
149ms
4 Dec 2025
Happy Numbers (Long)
luuumine
82
307ms
4 Dec 2025
Happy Numbers (Long)
CommandLeo
82
299ms
3 Dec 2025
Happy Numbers (Long)
Code-Coder-coder
102
14ms
24 Nov 2025
Happy Numbers (Long)
qpwoeirut
92
23ms
23 Nov 2025
Happy Numbers (Long)
albanian-laundromat
85
22ms
20 Nov 2025
Happy Numbers (Long)
khvdm
🥇
72
151ms
10 Nov 2025
Happy Numbers (Long)
Babafaba
81
356ms
6 Nov 2025
Happy Numbers (Long)
TJK-S
140
15ms
22 Oct 2025
Happy Numbers (Long)
kg583
74
185ms
15 Oct 2025
Happy Numbers (Long)
Andre3582
116
22ms
10 Oct 2025
Happy Numbers (Long)
jacekwladzinski
95
21ms
2 Oct 2025
Happy Numbers (Long)
mathb0y512
95
482ms
22 Sep 2025
Happy Numbers (Long)
fuzzylojik-golf
79
191ms
15 Sep 2025
Happy Numbers (Long)
JayXon
73
150ms
13 Sep 2025
Happy Numbers (Long)
InigoK
79
203ms
5 Sep 2025
Happy Numbers (Long)
katss2
564
11ms
20 Aug 2025
Happy Numbers (Long)
wobblybits
99
21ms
18 Aug 2025
Happy Numbers (Long)
andrewjc2000
87
26ms
11 Aug 2025
Happy Numbers (Long)
muser-logiccpu
205
13ms
9 Aug 2025
Happy Numbers (Long)
dirckvdende
88
427ms
2 Aug 2025
Happy Numbers (Long)
Zhenyu-Bo
307
16ms
1 Aug 2025
Happy Numbers (Long)
osNiko
125
27ms
29 Jul 2025
Happy Numbers (Long)
YAJUE114514
93
413ms
28 Jul 2025
Happy Numbers (Long)
BREMAUCY
108
24ms
26 Jul 2025
Happy Numbers (Long)
edsrzf
81
261ms
22 Jul 2025
Happy Numbers (Long)
csharpython
98
21ms
17 Jul 2025
Happy Numbers (Long)
CaedenHarper
77
325ms
14 Jul 2025
Happy Numbers (Long)
clayboll99
116
14ms
11 Jul 2025
Happy Numbers (Long)
codewrite
99
237ms
10 Jul 2025
Happy Numbers (Long)
rollsroyce0
104
23ms
8 Jul 2025
Happy Numbers (Long)
KasperKivimaeki
85
23ms
2 Jul 2025
Happy Numbers (Long)
bknower
107
96ms
29 Jun 2025
Happy Numbers (Long)
123mjb
112
18ms
26 Jun 2025
Happy Numbers (Long)
jipsong
79
256ms
20 Jun 2025
Happy Numbers (Long)
herbroot
114
4,163ms
19 Jun 2025
Happy Numbers (Long)
ffelixm
314
10ms
12 Jun 2025