12 Days of Christmas
4thπ2nd3rd
1st
πππ
π
π
2nd
π4th
π
π
1st
1st
π1st
π
π
99 Bottles of Beer
π
2nd
π3rd
8th
π
2nd
3rd
6th1st
π
Abundant Numbers
ππ
4th1st1st1st4thπ
3rd1st3rdπ2nd
2nd
1st
1st2nd
1st
2nd1stπ
π3rd
8th
3rd
3rd1st
1st
1st
1st1st
Abundant Numbers (Long)
1st
8th2nd5th1st
1st
1st1st2nd1st1st
2nd
1st
2nd4th
1st
1st1st1st
3rd
4th
3rd1st
1st
1st
1stπ
Arabic to Roman
2nd2nd2nd3rd
4th1st3rd3rd
2nd
π5th
2nd
2nd
4th2nd
10th
7thπ
π
Arithmetic Numbers
1st
5th2nd1st2nd
3rd
3rd1st1st
1st
1st
5th
2nd1st
1st
1st2nd2nd
π
2nd
6thπ
2nd
π
2ndπ
Arrows
3rd2nd3rd2nd
1st
2ndπ2ndπ
2nd
1st4th
2nd
2nd2ndπ
3rd
6th
1stπ
π
π
ππ
Ascending Primes
1st
1st1stππ
π
πππ
π
1st
1stπ
4th
πππ
1st
2ndπ
1st
π
π
ASCII Table
3rd1stππ
1st
π2ndπ
1st
1stπ
π
πππ
1st
9thπ
π
π
ππ
brainfuck
π
5th
1st
π
π
π9th
π
π
1st
5thπ
π
Card Number Validation
1st
πππ1st
π
1stππππ
π
π1st
π
1stππ
1st
ππ
π
π
ππ
Catalan Numbers
1st1st1st
1st
1st1st1st1st1st
1st1st1st
1st1st
1st
1st
13th
1st
1st2nd
π
1st
Catalanβs Constant
3rd
π
6th
3rd
π
π
1st
12th
6th
π
Christmas Trees
2nd
2nd
π
1st2nd1stπ1st
1st
1st9th
5th
2nd1st
π
3rdπ
π
1st
1stπ
Collatz
1st
7th1st1stπ
1st
4th1st1st1st
1st4th4th
1st1st
4th
1st1st1st
1st
1stπ
2nd
1st
1stπ
CSS Colors
1st
2nd
1st
2ndππ
π
2nd2nd
1st
π1st
1st
2nd
4thπ
π
π
Cubes
2nd
2ndπ
4th
4th
π
π
10th
3rdπ
Day of Week
1st1st1st1st
1st
3rd1st1st1st1st
1st
1st1st
π
1st1st1st
1st
1st
1stπ
π
1st
π
DFA Simulator
π
4th
5th
7th
π
Diamonds
1st1stπ4th
5th
1stπ1st
π
2nd7th
5th
2nd2nd
5th
4thπ
π
2nd
π
Divisors
10th1st
1st1st3rd1st
1st
1st1st1st1st1st
1st
1st
18th1st1st
4th
1st1st1st
14th
1st
1st1st
π
1st
1st1st
Emirp Numbers
π
1st1st1stπ1st1st
1st1st1st1st1st
1st
1st4th
4th
1st1stπ
π
1st
1st
1stπ1st
6th5th1st
1stπ
Emirp Numbers (Long)
π
1st1st4thπ
1st
2ndπππ
π
3rd
1st3rd
4th
3rdππ
1st
1stπ
π
π
ππ
Emojify
4thππ2nd
1st
1st1st1stππ
π
π
1st2nd
1st
1stππ
π
1st
4thπ
π
π
ππ
Evil Numbers
4th
8th2nd1st
2nd1st2nd1st1st1st1st1st1st1st1st1st1st1st1st1st
25th1st1st
1st1stπ1st1st
1st3rd1st2nd1st1st
3rd1st1st
1st6th1st4th1st1st
Evil Numbers (Long)
3rd5th
1st1st1st1st
1st1st1st1st1st2ndπ1st1st1st
19th1st1st
1st1st1st1st1st
1st
1st1st4th1stπ
1st
1st
1st1st
Factorial Factorisation
π
3rdπ2ndπ
π
πππ
π
π
ππ
3rd
πππ
π
1stπ
π
π
ππ
Farey Sequence
1st
3rd1st1st2nd
1st
1st1st1st1st2nd
1st
2nd
1st1st
1st
1st1stπ
1st
1st
1stπ
1st
1st
ππ
Fibonacci
15th
3rd1st
8th1st1st1st11th1st
1st1st1st1st1st
1st1st1st
1st1st
1st
1st1st3rd
1st
8th
1st1st7th1st
1st
1st
1st1st
Fizz Buzz
1st
19th1st1st1st
1st
1st1st1st1st
1st
9th
1st1st
1st
1st6th1st
8th1st1st
1st13th1st1st
1st
π
1stπ
Foo Fizz Buzz Bar
1st
1st
π
1st
3rd1st1st
1st
11th
2nd3rd
3rd
π1st1st
1st1st
1st
5thπ
1st
π
1st2nd
ForsythβEdwards Notation
2ndπππ
2nd
2nd
π
π1st
π
4th
1stπ
π
π
π
Fractions
2nd1st1st4th
1st
1st1stπ
1st
1st1st
4th
1st1st2nd
5th
1st
1stπ
π
1st1st
Game of Life
2ndπ2ndπ
π
ππππ
π
ππ
π
πππ
1st
ππ
π
π
ππ
Gijswijtβs Sequence
π
π
1st
1st1st
2nd
1st3rd
π
4th
1st
3rdπ
π
1st
Happy Numbers
π
4th1st1st1st1st1st
1st1st1st1st1st1st1st
1st
1st1st
1st1st1st1st1st
1st
4th1st1st
1st1st
1st8th1st
1st1st
Happy Numbers (Long)
π
5th1st1st1st
7th
1stπ1st2nd
1st
1st
1st1st
1st1stπ2nd2nd
8th
1st1st
1st
2nd
1stπ
Hexdump
1st
π
π
2nd
2nd
π
1st
9thπ
π
Intersection
π
π
5th
π
3rd
π
π
π
π
7th
2ndπ
1st
π
ππ
Inventory Sequence
1st
7th2nd2nd2nd
7th
4th2ndπ1st
1st
2nd4th
2nd
π1st1st
13th
6thπ
π
2nd
2ndπ
ISBN
π
2nd1stπ4th
3rd
ππ2nd2nd
π
8th
1st1st
1st
1stππ
6th
2ndπ
π
π
ππ
Jacobi Symbol
π
π
3rd
2nd2nd
1st
2nd4th
π
5th
4th2nd
π
2nd
Kaprekar Numbers
3rd
7th4th4th6th
π
π
π
3rd1st
π
1stππ
3rdπ
π
π
ππ
Kolakoski Constant
1st
π
π
πππ
2nd
ππ
4th
2nd
2nd
1st
π
π
Kolakoski Sequence
4th
3rd
3rd1st2ndπ
3rd
1st1st3rd
1st
1st1st
1st
1st1st
5th
1st1st
π
2nd
1stπ
Leap Years
1st1st
2nd1st1st1st
π
1st1st1st1st1st1st3rd
1st
1st1st
1st
π1st1st
2nd
7th1st1st3rd
1st1st
1st
2nd
1st1st
Levenshtein Distance
2nd
π
1st
1st1st
π
5th
π2nd
4th
π
2nd
1st
1st
1stπ
1st
Leyland Numbers
2nd
1st
πππ1st
4th
4th
3rd
1st
1st
6th
6thπ
π
1st
ln 2
2nd
1st
1st
1st1stπ1st1st
2nd
1st1st
1st
2nd
1st
1st
15th
π
Look and Say
1st
2nd
2nd3rd
3rd
2nd
1st
4th
1st
π
1st
1st
1st1st
π
π
Lucky Numbers
1st
4th1st1st2nd
2nd
1stππ3rd
1st
1st2nd
2nd
2nd
1st
3rd
3rdπ
π
π
π1st
Lucky Tickets
π
1st
1st
3rdππ
π
1st
π1st
1st
1st
1st
6thπ
π
π
π
Maze
2nd3rdπ2nd
6th
1st
2nd
3rd
2nd
ππ
9th
π
Medal Tally
3rd
π
π
1st1st
π
6th
π
6th
1stπ
π
π
Morse Decoder
ππππ
1st
π1st1st2ndπ
π
2nd2nd
1st
π
1st
ππ
π
π
Morse Encoder
3rd
ππππ
π
2ndπ1st
π
π
π
ππ
π
πππ
π2ndπ
π
ππ
π
π
ππ
Musical Chords
ππππ
π
ππππ2nd
π
2nd
ππ
2nd
1stππ
2nd
ππ
π
π
ππ
Niven Numbers
9th
1st1st
1st1st1st1st1st1st
1st1st1st1st1st
1st1st1st
1st1st
1st
1st1st1st
1st10th4th1st
1st
6th1st
1st
1st
1st1st
Niven Numbers (Long)
1st1st
1st1st1st3rd
1st
1st1st1st1st1st
1st1st1st
1st1st
1st
1st1st1st
1st
1st
1st
1st1st
1st
1st
1st1st
Number Spiral
3rd
6thπ1stπ
5th
3rd1st1stπ1st
5th
π4th
πππ
8th
7thπ
π
π
π
Odious Numbers
4th
8th2nd1st
9th1st2nd2nd1st1st1st1st3rd1st1st1st1st1st1st1st
1st1st4th
1st1stπ1st1st
7th5th3rd10th1st1st
1st1st1st
1st7th1st5th1st1st
Odious Numbers (Long)
2nd5th
9th1st1st1st
1st1st1st1st1st2ndπ1st1st1st
1st1st1st
1st1st1st1st1st
1st
1st1st4th1stπ
1st
1st
1st1st
Ordinal Numbers
π
ππππ
1st
7thππππ
1st
1st
π1st
1st
π1stπ
π
π
13thπ
1stπ
π
ππ
PalindromemordnilaP
π
ππππ
1st
3rdππ2nd
1st
1st
1st1st
1st
2ndπ2nd
1st
1stπ
π
π
1stπ
Pangram Grep
1st
12thπ4th1st
1st
2ndππ1st2nd
1st1st1st
1st1st5th1st
1st1st1st
1st
5th1st
π
1st1st
Pascalβs Triangle
1st
2nd1st1st1st
1st
4thπ1st1st
2nd
7th
1st1st2nd
3rd
1st1st1st
1st
1st1st
1st
1st
1st1st
Pernicious Numbers
5th1st8th1st1st
1st1st1st1st1st1st
1st1st1st1st1st
1st1st
1st1st1st
1st1st1st1st1st
1st1st1st1st1st1st1st1st1st
1st6th1st
1st1st
Pernicious Numbers (Long)
1st
1st1st1st1st
1st
1st1st1st1st1st
1st
4th1st1st
1st1st1st1stπ
π
1st1st
5th1st
1st
1st
2ndπ
Poker
π
π
1st
πππ
π
ππ
2nd
1st
1st
2ndπ
π
π
Prime Numbers
4th1st
1st1st1st1st1st1st
1st1st1st1st3rd
1st
1st
1st1st1st
8th1st1st1st1st
7th
1st8th1st
1st1st1st5th1st7th1st
1stπ
Prime Numbers (Long)
1st
7th1st1st2nd
1st
2nd6th1st1st1st
1st
9th
1st1st1st
8th1st1st1st1st
1st1st
1st1st
1st
1st
1st1st
Proximity Grid
π
π
π
6th
π
2nd
5thπ
π
π
QR Decoder
ππππ
π
πππ
π
π
1stπ
π
πππ
π
ππ
π
π
ππ
Quine
1st
1st
25th19th1st3rd3rd
2nd1st1st1st
1st
1st
1st10th
1st1st
1st
1st1st
1st
1st
1st
1st1st
1st
2nd
1st
RecamΓ‘n
1st
3rd1st1st4th
1st
2nd1stπ1st
π
1st1st
7th
2nd1st1st
3rd
7thπ
π
1st
1stπ
Repeating Decimals
π
1st
1st
π
2nd
4th
1st
1st
4thπ
Reverse Polish Notation
3rd2ndππ
2nd
π
π1st
2nd1st
π
π
14thπ
π
Reversi
π
2nd
π
4th
1st
8th
4th
Rijndael S-box
π
π
2nd
π5thπ
2nd
ππ
ππ
4th
4th2nd
2nd
2nd
Rock-paper-scissors-Spock-lizard
π
π
1st
ππ
2nd
π
4th1st
2nd
1st
π
1st
1stπ
π
π
π
Roman to Arabic
1st
5th1st2ndπ
1st
1stπ1stππ
2nd
1st
π3rd
1st
π1st2nd
1st
2nd
1st
1stπ
π
π
ππ
ROT13
2ndπππ
1st
π2ndπ
π
π
π1st
π
π1stπ
1st
1st
12thπ
π
π
ππ
Rule 110
πππ
1st
1st1st
2nd
1st
3rd
1st
1stπ
π
π
Seven Segment
3rd2nd3rdπ
2nd
π
π
2nd2nd
9th
7thπ
2nd
π
SierpiΕski Triangle
1st
1stπ1stπ
1st
1st1st1stππ
π
1st1st
2nd
π2nd1st
1st
1st
1stπ
π
π
1st1st
Smith Numbers
3rd2nd2ndπ
2nd
πππ
π
π
2nd1st
2nd
πππ
1st
2nd2nd
π
π
π
Spelling Numbers
π
π
1st1st3rd
π
3rd
3rdπ
π
Star Wars Opening Crawl
π
5th
π
9th
π
Sudoku
ππ1stπ
2nd
ππ
π
ππ
3rd
4th
3rdπ
Sudoku (Fill-in)
2ndπ1stπ
π
1stπ
π
π2nd
2nd
π
2nd
2ndπ
Ten-pin Bowling
π
π2nd
2nd
ππ2nd1st
π
1st1st
2nd
π
2nd
2ndπ
π
Tic-tac-toe
π1stπ1st
1st
1stππππ
π
π1st
π
1st2ndπ
1st
1st
2nd
1stπ
π
π
ππ
Time Distance
π1st1stπ
π
ππ
π
π1st
π
4thπ
π
Tongue-twisters
ππππ
π
πππ2ndπ
π
π
ππ
π
πππ
ππ
π
π
ππ
π
π
π
Transpose Sentence
3rd1st2nd2nd
1st
1st1stπ
π
1st
π1st
1st
1st
π
2nd
9th1st
π
π
π
United States
π
1st
2nd
2ndπ
1stπ
π
π
3rd
1st
2ndπ2nd
4th
3rdπ
1st
π
ππ
Vampire Numbers
2ndπππ
2nd
2nd2ndππ
π
π1st
1st
ππ
5th
8thπ
π
π
π
Van Eck Sequence
1st
1st1st1stπ
8th
1st2nd1st
1st
1st9th
4th
1st1st
1st
1stπ
π
π
1stπ
Zeckendorf Representation
π
3rd3rdπ2nd
π
1stπ1st
1st
1stπ
4th
ππ1st
1st
4thπ
1st
π
π1st
Zodiac Signs
4thπ2ndπ
π
ππππ
π
π1st
π
1stπ
1st
ππ
π
π
π
Ξ³
1st
π
3rd
1st1stπ
π
π
π1st
1st
2nd
2nd
π
Ξ»
5thπ2nd2nd
6th
2ndππ
π
π
π5th
5th
ππ
2nd
9th
5th2nd
π
π
π3rd
Ο
3rd
3rd
3rd
π1stπ2nd
1st
1st4th7th
1st
2nd
4th
9th
4th
π
Ο
3rd
1st
1st
πππ2nd
1st
1st4th1st
1st
2nd
4th
6th
4th
π
Ο
2nd
1st
1st
1st1st2nd1st3rd
1st
17th
1st1st
1st
1st
1st
1st
10th
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
7th
1st