12 Days of Christmas
10thππ3rd
π
πππ
π
π
π
π3rd
π
π
π
π
2ndπ
π
π
99 Bottles of Beer
π
1st
π3rd
6th
π
π
1st
3rd1st
π
Abundant Numbers
1stπ
4th1st1st1st4th3rd
3rd1st3rd1st1st
1st
1st
1st2nd
1st
1st1st1st
1st7th
2nd
3rd
1st1st
1st
1st
1stπ
Abundant Numbers (Long)
1st
7th2nd5th1st
1st
1st1st2nd1st1st
2nd
1st
2nd5th
1st
1st1st1st
3rd
2nd
3rd1st
1st
1st
1stπ
Arabic to Roman
5th1st1st2nd
4th1st3rd3rd
3rd
π5th
π
2nd
4th3rd
7th
2ndπ
π
Arithmetic Numbers
1st
5th1st1st2nd
1st
3rd1st1st
1st
1st
5th
2nd1st
1st
1st2nd2nd
π
2nd
10thπ
2nd
π
2ndπ
Arrows
π2ndπ1st
1st
2ndπ2ndπ
π
1st2nd
2nd
2nd2nd1st
1st
3rd
2ndπ
π
π
ππ
Ascending Primes
1st
1st1stππ
π
πππ
π
1st
1stπ
4th
πππ
1st
4thπ
1st
π
π
ASCII Table
3rd1stππ
1st
π2ndπ
1st
1st1st
1st
πππ
1st
7thπ
π
π
ππ
brainfuck
π
π
π
π
π
π8th
π
π
1st
3rdπ
π
Card Number Validation
1st
ππππ
1st
1stππππ
π
π1st
π
1stππ
1st
ππ
π
π
ππ
Catalan Numbers
1st1st1st
4th
1st1st1st1st1st
1st3rd1st
1st1st
1st
1st
13th
1st
1st2nd
π
1st
Catalanβs Constant
3rd
π
4th
2nd
π
π
1st
8th
3rd
π
Christmas Trees
2nd
3rd
π
1st2nd1stπ1st
1st
1st9th
5th
2nd1st
π
9thπ
π
1st
1stπ
Collatz
1st
9th1st1st1st
8th
4th1st1st1st
1st7th4th
1st1st
4th
1st1st1st
2nd
1stπ
1st
1st
1stπ
CSS Colors
1st
2nd
1st
1stππ
π
π2nd
π
π1st
1st
1st
2ndπ
π
π
Cubes
2nd
2ndπ
2nd
π
π
π
5th
3rdπ
Day of Week
1st1st1st1st
1st
3rd1st1st1st1st
1st
1st1st
π
1st1st1st
1st
1st
1stπ
π
1st
π
DFA Simulator
π
3rd
4th
2nd
π
Diamonds
1st1stπ3rd
1st
1stπ1st
π
2nd7th
6th
2nd2nd
1st
4thπ
π
2nd
π
Divisors
10th1st
1st1st5th1st
2nd
1st1st1st1st1st
1st
1st
18th1st1st
4th
1st1st1st
14th
1st
4th1st
π
1st
1st1st
Emirp Numbers
π
4th1st2ndπ1st2nd
1st1st1st1st1st
3rd
1st1st
3rd
1st3rd3rd
3rd
1st
3rd
3rd1st3rd
1st5th2nd
2nd1st
Emirp Numbers (Long)
π
1stπ4thπ
1st
2ndπππ
π
3rd
π3rd
4th
3rdππ
1st
ππ
π
π
ππ
Emojify
5thπ3rd2nd
1st
1st1st1stππ
1st
π
π1st
1st
1st1stπ
2nd
1st
5th1st
2nd
π
ππ
Evil Numbers
8th2nd1st
2nd1st2nd1st1st1st1st1st1st1st1st1st1st1st1st1st
1st1st1st
1st1st1st1st1st
1st3rd1st2nd1st1st
1st1st1st
1st6th1st5th1st1st
Evil Numbers (Long)
3rd5th
1st1st1st1st
1st1st1st1st1st1stπ1st1st1st
1st1st1st
1st1st1st1st1st
1st
1st1st4th1stπ
1st
1st
1st1st
Factorial Factorisation
π
3rd1stππ
π
πππ
π
π
ππ
3rd
πππ
π
1stπ
π
π
ππ
Farey Sequence
1st
3rd1st1st1st
1st
1st1st1st1st2nd
1st
2nd
1st1st
1st
1st1stπ
1st
1st
1stπ
1st
1st
ππ
Fibonacci
3rd1st
3rd1st1st1st11th1st
1st1st1st1st1st
1st1st1st
1st1st
1st
1st1st3rd
1st
8th
1st1st7th1st
1st
1st
1st1st
Fizz Buzz
1st
19th1st1st1st
1st
1st1st1st1st
1st
9th
1st1st
1st
1st6th1st
8th1st1st
1st1st3rd1st
1st
π
1stπ
Foo Fizz Buzz Bar
1st
1st
2nd
1st
3rd1st1st
1st
11th
2nd3rd
1st
π1st1st
1st4th
1st
3rdπ
1st
π
1st1st
ForsythβEdwards Notation
1stπππ
π
π
π
π1st
π
2nd
1stπ
π
π
π
Fractions
2nd1st1st2nd
1st
2nd1stπ
1st
1st1st
5th
1st1st2nd
5th
1st
1stπ
π
1st1st
Game of Life
2nd1st2ndπ
π
ππππ
π
ππ
π
πππ
1st
ππ
π
π
ππ
Gijswijtβs Sequence
π
1st
1st
1stπ
π
1st1st
π
π
1st
3rdπ
π
π
Happy Numbers
1st
3rd1st1st1st1st1st
1st1st1st1st1st2nd1st
2nd
1st3rd
1st5th1st2nd1st
2nd
1st1st1st
1st1st
1st8th1st
1st1st
Happy Numbers (Long)
1st
5th1st1st1st
3rd
1st1st1st2nd
1st
1st
1st1st
1st1stπ2nd1st
3rd
2nd1st
1st
π
1stπ
Hexdump
1st
π
1st
2nd
1st
π
1st
6thπ
π
Intersection
π
π
3rd
π
3rd
π
1st
π
π
6th
1stπ
1st
π
ππ
Inventory Sequence
1st
7th2nd2nd2nd
3rd
4th2ndππ
1st
2nd4th
1st
π1st1st
6th
6thπ
π
2nd
2ndπ
ISBN
π
2nd1stπ1st
3rd
ππ2nd2nd
π
8th
1st1st
1st
1stππ
4th
4thπ
π
π
ππ
Jacobi Symbol
π
π
1st
2nd2nd
1st
2nd4th
π
2nd
2ndπ
π
2nd
Kaprekar Numbers
3rd
7th3rd4th5th
π
π
π
2nd1st
π
1stππ
3rdπ
π
π
ππ
Kolakoski Constant
1st
π
1st
πππ
2nd
ππ
4th
2nd
1st
2nd
π
π
Kolakoski Sequence
3rd
3rd1st1stπ
1st
1st1st3rd
1st
1st
1st1st
2nd
1st1st
4th
1st1st
π
1st
1stπ
Leap Years
1st1st
2nd1st1st1st
1st
1st1st1st1st1st1st2nd
1st
1st1st
1st
π1st1st
2nd
7th1st1st3rd
1st1st
1st
2nd
1st1st
Levenshtein Distance
2nd
π
1st
1st1st
π
5th
π1st
4th
π
2nd
1st
1st
1stπ
1st
Leyland Numbers
3rd
1st
πππ1st
4th
4th
3rd
1st
1st
1st
6thπ
π
1st
ln 2
2nd
1st
1st
1st1stπ1st1st
1st
1st1st
1st
2nd
1st
1st
15th
1st
Look and Say
1st
1st
2nd3rd
2nd
2nd
1st
5th
1st
π
4th
1st
2ndπ
π
π
Lucky Numbers
1st
3rd1st1st2nd
1st
1stππ3rd
1st
1st2nd
1st
2nd1st1st
3rd
3rdπ
π
π
π1st
Lucky Tickets
π
1st
1st
3rdππ
π
1st
π1st
1st
1st
1st
4thπ
π
π
π
Maze
3rd3rdππ
3rd
1st
2nd
2nd
π
ππ
6th
π
Medal Tally
3rd
π
π
1st2nd
π
2nd
π
1st
1stπ
π
π
Morse Decoder
πππ1st
1st
π1st1stππ
π
π2nd
π
π
1st
2ndπ
π
π
Morse Encoder
ππππ
π
πππ
π
π
π
ππ
π
πππ
π2ndπ
π
2ndπ
1st
π
ππ
Musical Chords
ππππ
π
πππππ
π
2nd
ππ
π
1stππ
π
ππ
π
π
ππ
Niven Numbers
2nd1st
1st1st1st1st1st1st
1st1st1st1st1st
1st4th1st
1st1st
1st
1st1st1st
2nd10th4th1st
1st
1st1st
1st
1st
1st1st
Niven Numbers (Long)
1st1st
1st1st1st1st
1st
1st1st1st1st1st
1st2nd1st
1st1st
1st
1st1st1st
1st
1st
1st
1st1st
1st
1st
1st1st
Number Spiral
3rd
6thπ1stπ
3rd
3rd1st1stπ1st
5th
π2nd
πππ
4th
3rdπ
π
π
π
Odious Numbers
8th2nd1st
7th1st1st2nd1st1st1st1st1st1st1st1st1st1st1st1st
1st1st4th
1st1st1st1st1st
7th5th3rd11th1st1st
1st1st1st
1st7th1st6th1st1st
Odious Numbers (Long)
2nd5th
5th1st1st1st
1st1st1st1st1st1stπ1st1st1st
1st1st1st
1st1st1st1st1st
1st
1st1st4th1stπ
1st
1st
1st1st
Ordinal Numbers
π
πππ1st
1st
7thππππ
1st
1st
π1st
1st
π1stπ
π
π
14thπ
1stπ
π
ππ
PalindromemordnilaP
π
ππππ
1st
3rdππ2nd
1st
1st
1st1st
1st
2ndπ2nd
1st
1stπ
π
π
1stπ
Pangram Grep
1st
12thπ4th1st
1st
2ndππ1st2nd
1st3rd1st
1st1st5th3rd
1st1st1st
1st
5th1st
π
1st1st
Partition Numbers
1st
πππ1st
1st
1stππππ
1st
π2nd
π
1st1st1st
1st
2ndπ
1st
1st
1st1st
Pascalβs Triangle
1st
2nd1st1st5th
1st
4thπ1st1st
2nd
7th
1st1st2nd
3rd
1st1st1st
1st
3rd1st
1st
1st
1st1st
Pernicious Numbers
1st8th1st1st
1st1st1st1st1st1st
1st1st1st1st1st
1st1st
1st1st1st
1st1st1st1st1st
1st1st1st1st1st1st1st5th1st
1st6th1st
1st1st
Pernicious Numbers (Long)
1st
1st1st1st1st
1st
1st1st1st1st1st
1st
1st1st1st
1st1st1st1stπ
π
1st1st
5th1st
1st
1st
2ndπ
Poker
π
π
π
π2ndπ
π
ππ
π
1st
π
2ndπ
π
π
Prime Numbers
2nd1st
1st1st1st1st1st1st
1st1st1st1st1st
3rd
1st
1st1st1st
9th1st1st1st1st
1st
1st8th1st
1st1st1st6th1st7th1st
1st1st
Prime Numbers (Long)
1st
6th1st1st6th
1st
2nd6th1st1st1st
1st
9th
1st1st1st
10th1st1st1st1st
1st1st
1st1st
1st
1st
1st1st
Proximity Grid
π
π
π
5th
π
1st
4thπ
π
π
QR Decoder
ππππ
π
πππ
π
π
1stπ
π
πππ
π
ππ
π
π
ππ
Quine
1st
1st
25th19th1st3rd3rd
7th1st1st1st
1st
1st
1st10th
1st1st
1st
1st1st
1st
1st
1st
1st1st
1st
2nd
1st
RecamΓ‘n
1st
3rd1st1st4th
1st
2nd1stππ
π
1st1st
7th
2nd1st1st
1st
8thπ
1st
1st
1stπ
Repeating Decimals
π
1st
π
π
2nd
3rd
1st
1st
3rdπ
Reverse Polish Notation
3rd2ndππ
2nd
π
π1st
2nd1st
π
4th
10thπ
π
Reversi
3rd
π
π
1st
1st
2nd
2nd
Rijndael S-box
π
π
3rd
2nd5thπ
2nd
ππ
ππ
2nd
2nd2nd
2nd
2nd
Rock-paper-scissors-Spock-lizard
1st
1st
1st
ππ
π
π
4thπ
π
1st
π
1st
2ndπ
π
π
π
Roman to Arabic
1st
5th1st2nd1st
1st
1st2nd1stππ
2nd
1st
π3rd
1st
π1st2nd
1st
2nd
1st
3rdπ
π
π
ππ
ROT13
2ndπππ
π
π2ndπ
π
π
π1st
π
π1stπ
1st
1st
12thπ
π
π
ππ
Rule 110
ππ1st
1st
1st1st
2nd
1st
3rd
1st
2ndπ
π
π
Set
π
π
π
π
1st
6thπ
Seven Segment
3rd2ndπ1st
3rd
π
π
1st1st
8th
4thπ
2nd
π
SierpiΕski Triangle
1st
1st1st1st1st
π
1st1st1st1stπ
π
2nd1st
2nd
π2nd1st
1st
1st
2ndπ
π
π
1st1st
Smith Numbers
3rd2nd2ndπ
1st
πππ
π
π
2nd1st
π
πππ
1st
2nd2nd
π
π
π
Spelling Numbers
π
π
1st1stπ
π
1st
3rdπ
π
Star Wars Opening Crawl
π
2nd
π
4th
π
Sudoku
ππ1stπ
π
ππ
π
ππ
π
π
3rdπ
Sudoku (Fill-in)
2ndπ1stπ
π
1stπ
π
π1st
2nd
π
π
ππ
Ten-pin Bowling
π
π1st
2nd
π2nd2nd1st
π
2nd2nd
π
π
2nd
2ndπ
π
Tic-tac-toe
ππππ
π
1stππππ
1st
π1st
π
1st2ndπ
1st
1st
1st
1stπ
π
π
ππ
Time Distance
3rdπππ
π
ππ
π
ππ
π
2ndπ
π
Tongue-twisters
ππππ
π
πππ3rdπ
π
π
ππ
π
πππ
π3rd
3rd
π
ππ
π
π
π
Transpose Sentence
3rd1st2ndπ
1st
1st1stπ
π
1st
π1st
1st
1st
π
2nd
9th1st
π
π
π
United States
π
1st
2nd
2ndπ
1stπ
2nd
π
3rd
1st
2ndπ2nd
4th
3rdπ
1st
π
ππ
Vampire Numbers
2ndπππ
π
π2ndππ
π
ππ
π
ππ
3rd
5thπ
π
π
π
Van Eck Sequence
1st
1st1st1stπ
1st
1st2nd1st
1st
1st9th
4th
1st1st
1st
1stπ
1st
π
1stπ
Zeckendorf Representation
π
3rd3rdππ
1st
1stπ1st
1st
1stπ
5th
ππ1st
1st
ππ
1st
π
π1st
Zodiac Signs
4thπ4thπ
1st
ππππ
π
π1st
π
1stπ
1st
1stπ
π
π
π
Ξ³
1st
π
2nd
1st1stπ
π
π
ππ
1st
2nd
2nd
π
Ξ»
3rdπ1stπ
3rd
πππ
π
2nd
1stπ
2nd
1st1st
3rd
7th
5thπ
π
1st
ππ
Ο
2nd
2nd
2nd
π1stπ4th
1st
3rd4th7th
1st
2nd
4th
8th
5th
1st
Ο
2nd
1st
2nd
π1stπ3rd
1st
3rd4th1st
1st
2nd
4th
6th
5th
1st
Ο
2nd
1st
1st
1stπ2nd1st3rd
1st
17th
1st1st
1st
1st
1st
1st
11th
π
β2
4th
1st
1st
1stπ2nd1st4th
1st
10th
13th1st1st
1st
1st
1st
1st
1st
1st
π
3rd
1st
1st
π1st1st1st1st
2nd
1st4th1st
1st
1st
5th
1st
8th
1st