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Hy
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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
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Arabic to Roman
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Arrows
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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
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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
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Tutorial
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Hole
Golfer
Chars
Time
Submitted
Happy Numbers
Orsailius
150
389ms
23 days ago
Happy Numbers
janbehrens
106
409ms
16 May 2026
Happy Numbers
reflogedoc
🥇
70
383ms
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Happy Numbers
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86
401ms
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Happy Numbers
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🥇
70
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Happy Numbers
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79
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136
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Happy Numbers
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🥇
70
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Happy Numbers
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Happy Numbers
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95
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79
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92
484ms
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137
585ms
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Happy Numbers
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🥇
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461ms
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Happy Numbers
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89
421ms
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Happy Numbers
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122
442ms
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Happy Numbers
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79
496ms
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Happy Numbers
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🥇
70
497ms
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Happy Numbers
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118
434ms
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Happy Numbers
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88
490ms
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Happy Numbers
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128
456ms
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Happy Numbers
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156
475ms
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Happy Numbers
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79
446ms
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Happy Numbers
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110
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Happy Numbers
JayXon
🥇
70
479ms
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Happy Numbers
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🥇
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510ms
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Happy Numbers
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94
492ms
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Happy Numbers
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154
426ms
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Happy Numbers
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447
383ms
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Happy Numbers
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121
448ms
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Happy Numbers
yoshykai
180
400ms
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Happy Numbers
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128
350ms
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Happy Numbers
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188
491ms
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Happy Numbers
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210
373ms
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Happy Numbers
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200
537ms
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Happy Numbers
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192
341ms
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Happy Numbers
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207
409ms
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Happy Numbers
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279
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Happy Numbers
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324
419ms
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Happy Numbers
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178
383ms
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Happy Numbers
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187
378ms
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Happy Numbers
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818
416ms
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Happy Numbers
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214
415ms
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Happy Numbers
benradclyffe
194
403ms
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Happy Numbers
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215
375ms
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Happy Numbers
oganaa
559
412ms
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Happy Numbers
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210
386ms
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Happy Numbers
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197
398ms
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Happy Numbers
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322
400ms
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Happy Numbers
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177
340ms
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Happy Numbers
inventshah
146
382ms
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Happy Numbers
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165
401ms
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Happy Numbers
bwat2
239
415ms
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Happy Numbers
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496
434ms
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Happy Numbers
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147
388ms
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Happy Numbers
mokymok
200
371ms
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Happy Numbers
cbrt-x
162
401ms
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Happy Numbers
neihousaigaai
152
382ms
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Happy Numbers
melikebuyruk
180
394ms
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Happy Numbers
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157
400ms
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Happy Numbers
boxjelly
153
387ms
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Happy Numbers
baumpilz
171
404ms
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Happy Numbers
xkacer
118
443ms
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Happy Numbers
prplz
107
426ms
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Happy Numbers
jiaminglimjm
208
373ms
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Happy Numbers
Grimmjow91
344
429ms
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Happy Numbers
gianlab
369
394ms
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Happy Numbers
primo-ppcg
107
391ms
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