Rosetta Code/Count examples/Full list

Full output for the Rosetta Code/Count examples#Raku task. Updated periodically.

This is something of a experiment. The top 10 languages have their completed task entries marked with a circled digit in the table so you can sort on the language to see which tasks have been done. Hold down control and click on several columns to do secondary, tertiary, etc. sorts. Ideally it would be nice to be able to generate the table for any language but it is fairly intensive to generate. Once a week is ok, on demand would be unsustainable.

See Rosetta_Code/Rank_languages_by_popularity/Full_list for a full language/task completion table.

Top ten programming languages by number of task examples completed:
① Go
② Phix
③ Julia
④ Raku
⑤ Perl
⑥ Python
⑦ Kotlin
⑧ Racket
⑨ Java
⑩ C

As of 2020-06-28T20:19:45Z :: Tasks: 1059 :: Draft Tasks:193 :: Total Tasks: 1252 :: Total Examples: 68570

Count	Task	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
464	Hello world/Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
310	99 Bottles of Beer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
305	100 doors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
300	FizzBuzz	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
276	Fibonacci sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
275	Factorial	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
265	Comments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
252	A+B	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
249	Empty program	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
231	Function definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
222	Loops/Infinite	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
219	Reverse a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
218	Arrays	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
216	Loops/While	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
211	Ackermann function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
202	Loops/For	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
195	Conditional structures	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
194	Greatest element of a list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
191	Arithmetic/Integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
184	Array concatenation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
184	Greatest common divisor	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
183	Repeat a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
182	Averages/Arithmetic mean	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
182	Integer comparison	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
180	Boolean values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
178	Loops/Downward for	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
177	Even or odd	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
177	Increment a numerical string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
173	Hello world/Graphical	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
171	Copy a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
163	Character codes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
162	Apply a callback to an array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
160	Loops/Do-while	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
160	String concatenation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
160	Sum and product of an array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
159	Hello world/Newline omission	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
159	Loops/For with a specified step	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
158	Loops/Foreach	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
157	Loops/Break	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
156	Binary digits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
156	Sieve of Eratosthenes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
156	String length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
155	Array length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
155	Loops/N plus one half	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
154	String case	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
154	Sum of a series	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
153	Integer sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
153	Palindrome detection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
152	Leap year	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
151	Generic swap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
151	Hailstone sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
151	Tokenize a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
150	Towers of Hanoi	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
149	Empty string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
149	Logical operations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
149	Sum of squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
148	Dot product	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
148	Rot-13	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
147	Filter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
145	Associative array/Creation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
143	Execute a system command	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
143	Sort an integer array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
143	Sorting algorithms/Bubble sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
141	Factors of an integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
140	Guess the number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
139	Caesar cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
139	Determine if a string is numeric	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
139	Higher-order functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
139	Quine	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
138	File input/output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
138	User input/Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
137	Remove duplicate elements	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
136	Hello world/Standard error	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
136	System time	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
135	Roman numerals/Encode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
134	Day of the week	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
133	Bitwise operations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
133	Command-line arguments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
133	Primality by trial division	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
133	Read entire file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
131	Create a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
131	Sorting algorithms/Quicksort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
130	Loop over multiple arrays simultaneously	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
130	Luhn test of credit card numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
129	Sleep	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
129	Stack	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
129	Substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
128	Check that file exists	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
128	Loops/Continue	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
125	Generate lower case ASCII alphabet	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
125	Literals/String	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
125	Mutual recursion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
125	Pascal's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Date format	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Least common multiple	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
122	Happy numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
121	Binary search	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
121	Include a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨
121	Literals/Integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
120	Detect division by zero	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
120	Flatten a list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
120	Variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
119	Balanced brackets	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
119	Compound data type	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
119	Zero to the zero power	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
118	Associative array/Iteration	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
118	Formatted numeric output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
118	Knuth shuffle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
118	Loops/Nested	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
118	Program termination	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
117	ABC Problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
116	Averages/Root mean square	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	File size	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	Function composition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	Mandelbrot set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	Null object	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	Read a file line by line	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Classes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Delete a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Ethiopian multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Hash from two arrays	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Search a list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
113	Count in octal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
113	Sorting algorithms/Insertion sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Count occurrences of a substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Guess the number/With feedback	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Input loop	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Averages/Median	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Case-sensitivity of identifiers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Hostname	①	②	③	④	⑤	⑥	⑦	⑧	⑨
111	N-queens problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Real constants and functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Roman numerals/Decode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Environment variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Identity matrix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Matrix multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Multiplication tables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Rename a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
109	HTTP	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
109	Matrix transposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
109	Random numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Haversine formula	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Pick random element	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Return multiple values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	String matching	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
107	Babbage problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Accumulator factory	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Align columns	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Arithmetic/Complex	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Find limit of recursion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Pangram checker	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Perfect numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
105	Anagrams	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
105	Assertions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Averages/Pythagorean means	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Catalan numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Conway's Game of Life	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Horner's rule for polynomial evaluation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Letter frequency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Infinity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Program name	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Temperature conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Variadic function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
102	Evaluate binomial coefficients	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Exceptions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Levenshtein distance	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Regular expressions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Strip a set of characters from a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Arithmetic-geometric mean	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Nth root	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Run-length encoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Zig-zag matrix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	String append	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	String interpolation (included)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Substring/Top and tail	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Trigonometric functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	Anonymous recursion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	Combinations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	Permutations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	Reverse words in a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	Short-circuit evaluation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	Strip whitespace from a string/Top and tail	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Prime decomposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Queue/Definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
96	Comma quibbling	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
96	Shell one-liner	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
96	Sorting algorithms/Selection sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	24 game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	Bulls and cows	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	Look-and-say sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	Ordered words	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	Sorting algorithms/Merge sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	Call a function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	Create a two-dimensional array at runtime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	Enumerations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	Interactive programming	①	②	③	④	⑤	⑥	⑦	⑧	⑨
93	Collections	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Middle three digits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Y combinator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Range extraction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Sierpinski triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	String prepend	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Sum multiples of 3 and 5	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Time a function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
91	Exponentiation operator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
91	Power set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
91	Range expansion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
91	Vector products	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	Arbitrary-precision integers (included)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	First-class functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	Inheritance/Single	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	MD5	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	Random number generator (included)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	Sum digits of an integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Create an HTML table	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Cumulative standard deviation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	One-dimensional cellular automata	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Sequence of non-squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Sorting algorithms/Gnome sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Walk a directory/Non-recursively	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
88	Averages/Simple moving average	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
88	Sorting algorithms/Cocktail sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Averages/Mode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Evolutionary algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	Entropy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	Five weekends	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	Langton's ant	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	N'th	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	Sort using a custom comparator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Digital root	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Execute Brain****	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Forward difference	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Hamming numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	JSON	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Monty Hall problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Sierpinski carpet	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Sorting algorithms/Bogosort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Symmetric difference	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Window creation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Abstract type	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Dragon curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Greatest subsequential sum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Harshad or Niven series	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Josephus problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Abundant, deficient and perfect number classifications	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	CSV to HTML translation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Closures/Value capture	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	File modification time	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Gray code	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Last Friday of each month	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Price fraction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	String comparison	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	The Twelve Days of Christmas	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	CSV data manipulation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Menu	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Tree traversal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Amicable pairs	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Box the compass	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Map range	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Number names	①	②	③	④	⑤		⑦	⑧	⑨	⑩
80	Simple windowed application	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Sorting algorithms/Heapsort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Introspection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Literals/Floating point	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Queue/Usage	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	SEDOLs	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Sort an array of composite structures	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Hello world/Line printer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Hello world/Newbie	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Monte Carlo methods	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Non-decimal radices/Convert	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Singly-linked list/Traversal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Web scraping	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Catamorphism	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Count in factors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Floyd's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Number reversal game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Read a specific line from a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Sockets	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Sorting algorithms/Shell sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Spiral matrix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Terminal control/Clear the screen	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Terminal control/Ringing the terminal bell	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	URL decoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Walk a directory/Recursively	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	XML/Input	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Calculating the value of e	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Call an object method	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Playing cards	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Address of a variable	①	②	③	④	⑤	⑥	⑦	⑧	⑨
75	Compare a list of strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Concurrent computing	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Date manipulation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Pythagorean triples	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Roots of unity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Show the epoch	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Bitmap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Hofstadter Q sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Knapsack problem/0-1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Multifactorial	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Order two numerical lists	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Top rank per group	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	URL encoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Almost prime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	CRC-32	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Count the coins	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Dynamic variable names	①	②	③	④	⑤	⑥	⑦	⑧
73	Fibonacci n-step number sequences	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Find common directory path	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Find the last Sunday of each month	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Hello world/Web server	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Here document	①	②	③	④	⑤	⑥	⑦	⑧		⑩
73	Lucas-Lehmer test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Strip comments from a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Averages/Mean angle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Kaprekar numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	List comprehensions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Long multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Man or boy test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Proper divisors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Sorting algorithms/Counting sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Soundex	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Unicode variable names	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Equilibrium index	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Exceptions/Catch an exception thrown in a nested call	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Gamma function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Keyboard input/Obtain a Y or N response	①	②	③	④	⑤	⑥	⑦	⑧		⑩
71	Non-decimal radices/Output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Singly-linked list/Element definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Special characters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Take notes on the command line	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Empty directory	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Find the missing permutation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Linear congruential generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Operator precedence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	SHA-1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	SHA-256	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Semordnilap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Sorting algorithms/Comb sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Word wrap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Bitmap/Bresenham's line algorithm	①	②	③	④	⑤	⑥		⑧	⑨	⑩
69	Calendar	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Jensen's Device	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Modular inverse	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Parsing/RPN calculator algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Phrase reversals	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Polymorphism	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Quaternion type	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Read a configuration file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Sudoku	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Write entire file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Animation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Convert seconds to compound duration	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	IBAN	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Multiple distinct objects	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Pi	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Rock-paper-scissors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Self-describing numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Stair-climbing puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Vigenère cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Execute HQ9+	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Flow-control structures	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Four bit adder	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Longest common subsequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Repeat	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Sorting algorithms/Stooge sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Split a character string based on change of character	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Write float arrays to a text file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Anagrams/Deranged anagrams	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Call a foreign-language function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Currying	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Guess the number/With feedback (player)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Trabb Pardo–Knuth algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	15 Puzzle Game	①	②	③	④	⑤	⑥	⑦	⑧		⑩
65	AKS test for primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Benford's law	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Catalan numbers/Pascal's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Constrained random points on a circle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Enforced immutability	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Euler's sum of powers conjecture	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Fork	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Horizontal sundial calculations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Magic squares of odd order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Maze generation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Munchausen numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Named parameters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Sort disjoint sublist	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Variable size/Get	①	②	③	④	⑤	⑥	⑦	⑧		⑩
65	Zeckendorf number representation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Closest-pair problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Draw a sphere	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Euler method	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Extend your language	①	②	③	④	⑤	⑥	⑦	⑧	⑨
64	Fractal tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Inheritance/Multiple	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Largest int from concatenated ints	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Numerical integration	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Runtime evaluation	①		③	④	⑤	⑥	⑦	⑧	⑨
63	Arithmetic/Rational	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Combinations with repetitions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Continued fraction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Special variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Unix/ls	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Van der Corput sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	XML/Output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Documentation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Fast Fourier transform	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Hofstadter-Conway $10,000 sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Jump anywhere	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Morse code	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Narcissistic decimal number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Remove lines from a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Roots of a function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Singly-linked list/Element insertion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Sort stability	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Strip control codes and extended characters from a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Text processing/Max licenses in use	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Amb	①	②	③	④	⑤	⑥	⑦	⑧		⑩
61	Cholesky decomposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	HTTPS	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Nested function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	One of n lines in a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Optional parameters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Population count	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Barnsley fern	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Chinese remainder theorem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Factors of a Mersenne number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Memory allocation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Pernicious numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Priority queue	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Probabilistic choice	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Roots of a quadratic function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Sequence of primes by trial division	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Undefined values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Write language name in 3D ASCII	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Averages/Mean time of day	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Binary strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Host introspection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Rep-string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Sorting algorithms/Pancake sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Sorting algorithms/Sleep sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Arithmetic evaluation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Circles of given radius through two points	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Exponentiation order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Globally replace text in several files	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Non-decimal radices/Input	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Old lady swallowed a fly	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Partial function application	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Runge-Kutta method	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Show Ascii table	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Tic-tac-toe	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	24 game/Solve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Animate a pendulum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	General FizzBuzz	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Generator/Exponential	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Get system command output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Huffman coding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Miller–Rabin primality test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Modular exponentiation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Mouse position	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Plot coordinate pairs	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Reduced row echelon form	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Semiprime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Test a function	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Thue-Morse	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	User input/Graphical	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Brownian tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Draw a clock	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Dutch national flag problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Knapsack problem/Unbounded	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Knight's tour	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	LZW compression	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Stem-and-leaf plot	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	XML/XPath	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Add a variable to a class instance at runtime	①	②	③	④	⑤	⑥	⑦
55	Anti-primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Compile-time calculation	①	②	③	④	⑤		⑦	⑧		⑩
55	Deal cards for FreeCell	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Department Numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Emirp primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Extreme floating point values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Hash join	①	②	③	④	⑤	⑥	⑦	⑧	⑨
55	Knapsack problem/Continuous	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Left factorials	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Singleton	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Sorting algorithms/Bead sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Terminal control/Display an extended character	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Truncatable primes	①	②	③	④	⑤		⑦	⑧	⑨	⑩
55	Unicode strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Angle difference between two bearings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Best shuffle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Define a primitive data type	①	②	③	④	⑤	⑥	⑦	⑧	⑨
54	Delegates	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Fibonacci word	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Forest fire	①	②	③	④	⑤	⑥		⑧	⑨	⑩
54	Integer overflow	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Odd word problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Runtime evaluation/In an environment	①		③	④	⑤	⑥	⑦	⑧	⑨
54	Scope modifiers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Stack traces	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Topological sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Two Sum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Yin and yang	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	4-rings or 4-squares puzzle	①	②	③	④	⑤	⑥	⑦		⑨	⑩
53	Dinesman's multiple-dwelling problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Extract file extension	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Multisplit	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Munching squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Random number generator (device)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Send email	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Sort three variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Sorting algorithms/Permutation sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Synchronous concurrency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	9 billion names of God the integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Bitmap/Write a PPM file	①	②	③	④	⑤	⑥	⑦	⑧		⑩
52	CUSIP	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Doubly-linked list/Element definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Draw a cuboid	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Handle a signal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	I before E except after C	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Inverted syntax	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Matrix-exponentiation operator	①	②	③	④	⑤	⑥	⑦	⑧		⑩
52	Pointers and references	①	②	③	④	⑤	⑥	⑦	⑧	⑨
52	Rosetta Code/Rank languages by popularity	①	②	③	④	⑤	⑥	⑦	⑧		⑩
52	Terminal control/Cursor positioning	①	②	③	④	⑤	⑥	⑦	⑧
52	Truncate a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	XML/DOM serialization	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Grayscale image	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Iterated digits squaring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	JortSort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Leonardo numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Maximum triangle path sum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Modulinos	①	②	③	④	⑤	⑥		⑧	⑨	⑩
51	Sierpinski triangle/Graphical	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Statistics/Basic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Text processing/2	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Base64 encode data	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Bernoulli numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Cartesian product of two or more lists	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Convert decimal number to rational	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Dining philosophers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Non-continuous subsequences	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Quickselect algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Ternary logic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Unbias a random generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Wireworld	①	②	③	④	⑤	⑥		⑧	⑨	⑩
49	Discordian date	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	First-class functions/Use numbers analogously	①	②	③	④	⑤	⑥	⑦	⑧
49	Heronian triangles	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Ludic numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Mad Libs	①	②	③	④	⑤	⑥	⑦	⑧	⑨
49	Seven-sided dice from five-sided dice	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Universal Turing machine	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Validate International Securities Identification Number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Word frequency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	2048	①	②	③	④		⑥	⑦	⑧	⑨	⑩
48	FASTA format	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Farey sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Keyboard input/Keypress check	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Longest increasing subsequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Respond to an unknown method call	①	②	③	④	⑤	⑥	⑦	⑧
48	Terminal control/Coloured text	①	②	③	④	⑤	⑥	⑦	⑧		⑩
48	Text processing/1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Call a function in a shared library	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	DNS query	①	②	③	④	⑤		⑦	⑧
47	Dijkstra's algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Gaussian elimination	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Longest common prefix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Polynomial regression	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Rate counter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Subleq	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Zebra puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Doubly-linked list/Traversal	①	②	③	④		⑥	⑦	⑧	⑨	⑩
46	Extensible prime generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Fractran	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	GUI component interaction	①	②	③	④		⑥	⑦	⑧	⑨	⑩
46	Greyscale bars/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Longest string challenge	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Loops/Increment loop index within loop body	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Move-to-front algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Polymorphic copy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Search a list of records	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Shoelace formula for polygonal area	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Smith numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Stable marriage problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Stern-Brocot sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Tokenize a string with escaping	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Archimedean spiral	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Attractive numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Chinese zodiac	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Determine if only one instance is running	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Doubly-linked list/Element insertion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Find the intersection of two lines	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Holidays related to Easter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Make directory path	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Metaprogramming	①	②	③	④	⑤	⑥	⑦	⑧		⑩
45	Naming conventions	①	②	③	④	⑤	⑥	⑦	⑧		⑩
45	Pascal matrix generation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Strip block comments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Vector	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Append a record to the end of a text file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Colour bars/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Echo server	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	History variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨
44	Last letter-first letter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Perfect shuffle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Pig the dice game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Rosetta Code/Count examples	①	②	③	④	⑤	⑥		⑧	⑨
44	Send an unknown method call	①	②	③	④	⑤	⑥	⑦	⑧	⑨
44	Set consolidation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Abundant odd numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Carmichael 3 strong pseudoprimes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Draw a pixel	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Execute a Markov algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Hofstadter Figure-Figure sequences	①	②	③	④	⑤	⑥		⑧	⑨	⑩
43	Image noise	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Jaro distance	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Parsing/Shunting-yard algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Password generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Polynomial long division	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Verify distribution uniformity/Naive	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Visualize a tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Average loop length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Base64 decode data	①	②	③	④	⑤	⑥	⑦		⑨	⑩
42	Bitmap/Flood fill	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Bitmap/Read a PPM file	①	②	③	④	⑤	⑥	⑦	⑧		⑩
42	Determinant and permanent	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Doubly-linked list/Definition	①	②	③	④		⑥	⑦	⑧	⑨	⑩
42	Element-wise operations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Generate Chess960 starting position	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Kronecker product	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	OpenGL	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Sattolo cycle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Sparkline in unicode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	100 prisoners	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Active object	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Atomic updates	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Bulls and cows/Player	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Chaos game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Egyptian division	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Jewels and Stones	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Keyboard input/Flush the keyboard buffer	①	②	③	④	⑤	⑥	⑦	⑧		⑩
41	MD5/Implementation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Narcissist	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Percentage difference between images	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Secure temporary file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Start from a main routine	①	②	③	④	⑤		⑦	⑧		⑩
41	Sum to 100	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Table creation/Postal addresses	①	②	③	④	⑤		⑦	⑧		⑩
41	Twelve statements	①	②	③	④	⑤	⑥	⑦	⑧	⑨
41	Ulam spiral (for primes)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Variable size/Set	①	②	③	④	⑤	⑥	⑦	⑧		⑩
40	Calendar - for "REAL" programmers	①	②	③	④	⑤		⑦	⑧		⑩
40	Digital root/Multiplicative digital root	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Elementary cellular automaton	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Hickerson series of almost integers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	McNuggets Problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Problem of Apollonius	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Spinning rod animation/Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Subtractive generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Terminal control/Dimensions	①	②	③	④	⑤	⑥	⑦	⑧		⑩
39	Aliquot sequence classifications	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Cantor set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Damm algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Fusc sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Knapsack problem/Bounded	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Longest Common Substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Parametric polymorphism	①	②	③	④			⑦	⑧	⑨	⑩
39	Permutations/Derangements	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	S-Expressions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Sorting algorithms/Radix sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Sorting algorithms/Strand sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Casting out nines	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Color of a screen pixel	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Combinations and permutations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Constrained genericity	①	②	③	④			⑦	⑧	⑨
38	Determine if a string has all the same characters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	GUI enabling/disabling of controls	①	②	③	④		⑥	⑦	⑧	⑨	⑩
38	Parallel calculations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Pascal's triangle/Puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Sort numbers lexicographically	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Speech synthesis	①	②	③	④	⑤	⑥	⑦	⑧		⑩
38	Text between	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Topswops	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	UTF-8 encode and decode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Voronoi diagram	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Balanced ternary	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Break OO privacy	①	②	③	④	⑤	⑥	⑦		⑨
37	Deepcopy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Flipping bits game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	GUI/Maximum window dimensions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Inverted index	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Kernighans large earthquake problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	LU decomposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Parsing/RPN to infix conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Permutations by swapping	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Prime conspiracy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Pythagorean quadruples	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	QR decomposition	①	②	③	④	⑤	⑥		⑧	⑨	⑩
37	RPG Attributes Generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Ray-casting algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Self-referential sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Sort a list of object identifiers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Statistics/Normal distribution	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Taxicab numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Terminal control/Inverse video	①	②	③	④	⑤	⑥	⑦	⑧		⑩
37	Van Eck sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Variable-length quantity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Water collected between towers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Hilbert curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Julia set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Knuth's algorithm S	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Magic squares of doubly even order	①	②	③	④	⑤	⑥	⑦		⑨	⑩
36	Permutation test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Primorial numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Terminal control/Hiding the cursor	①	②	③	④	⑤	⑥	⑦	⑧		⑩
36	Vampire number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Bitmap/Midpoint circle algorithm	①	②	③	④		⑥	⑦	⑧
35	Chowla numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
35	Cramer's rule	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Euler's identity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Events	①	②	③	④	⑤	⑥		⑧		⑩
35	File extension is in extensions list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Find palindromic numbers in both binary and ternary bases	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Function prototype	①	②	③	④	⑤		⑦	⑧		⑩
35	Lychrel numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	MD4	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Metered concurrency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Minesweeper game	①	②	③	④	⑤	⑥		⑧	⑨	⑩
35	Multiline shebang	①	②	③	④	⑤	⑥		⑧		⑩
35	Musical scale	①	②	③	④	⑤	⑥	⑦	⑧		⑩
35	Nim Game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Numerical integration/Gauss-Legendre Quadrature	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Object serialization	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Order disjoint list items	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Permutations with repetitions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Sailors, coconuts and a monkey problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Terminal control/Unicode output	①	②	③	④	⑤	⑥	⑦	⑧		⑩
34	Abbreviations, automatic	①	②	③	④	⑤	⑥	⑦		⑨	⑩
34	Bell numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
34	Colour pinstripe/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Cuban primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Determine if a string has all unique characters	①	②	③	④	⑤	⑥	⑦		⑨	⑩
34	Floyd-Warshall algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Input/Output for Pairs of Numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Pathological floating point problems	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Sorting Algorithms/Circle Sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Square but not cube	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Sutherland-Hodgman polygon clipping	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Test integerness	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Bitwise IO	①	②	③	④	⑤	⑥	⑦	⑧		⑩
33	Brace expansion	①	②	③	④	⑤	⑥	⑦	⑧	⑨
33	Currency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Executable library	①	②	③	④	⑤	⑥		⑧	⑨	⑩
33	Feigenbaum constant calculation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Fivenum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Input/Output for Lines of Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Kahan summation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	MAC Vendor Lookup	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Magic 8-Ball	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Maze solving	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Parametrized SQL statement	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Penney's game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	RIPEMD-160	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Scope/Function names and labels	①	②	③	④	⑤	⑥	⑦	⑧		⑩
33	Square-free integers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Associative array/Merging	①	②	③	④	⑤	⑥	⑦		⑨
32	Bitcoin/address validation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Bitmap/Bézier curves/Cubic	①	②	③	④		⑥	⑦	⑧		⑩
32	Check output device is a terminal	①	②	③	④	⑤	⑥	⑦	⑧		⑩
32	Create a file on magnetic tape	①	②	③	④		⑥	⑦	⑧	⑨	⑩
32	Determine if a string is collapsible	①	②	③	④	⑤	⑥	⑦		⑨	⑩
32	Entropy/Narcissist	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Fibonacci word/fractal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Humble numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Largest number divisible by its digits	①	②	③	④	⑤	⑥	⑦		⑨	⑩
32	Long year?	①	②	③	④	⑤	⑥	⑦		⑨
32	Ordered Partitions	①	②	③	④	⑤	⑥	⑦	⑧		⑩
32	Pinstripe/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Pythagoras tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Ranking methods	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Read a file character by character/UTF8	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Rosetta Code/Find bare lang tags	①	②	③	④	⑤			⑧		⑩
32	Substitution Cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Totient function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Truth table	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	URL parser	①	②	③	④	⑤	⑥	⑦	⑧	⑨
31	Arithmetic-geometric mean/Calculate Pi	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Conjugate transpose	①	②	③	④	⑤	⑥	⑦	⑧		⑩
31	Copy stdin to stdout	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Days between dates	①	②	③	④	⑤	⑥	⑦		⑨	⑩
31	Egyptian fractions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Find the intersection of a line with a plane	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Galton box animation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Integer roots	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Long primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Multiple regression	①	②	③	④	⑤	⑥	⑦	⑧		⑩
31	Mutex	①	②	③	④	⑤	⑥		⑧	⑨	⑩
31	Parse command-line arguments	①	②	③	④	⑤	⑥	⑦	⑧		⑩
31	RSA code	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Recaman's sequence	①	②	③	④	⑤	⑥	⑦		⑨	⑩
31	Set puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Solve the no connection puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨
31	Straddling checkerboard	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Subset sum problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Topic variable	①	②	③	④	⑤	⑥	⑦	⑧
31	Write to Windows event log	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Abbreviations, simple	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Approximate Equality	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Bitmap/Bézier curves/Quadratic	①	②	③	④		⑥	⑦	⑧		⑩
30	Bitmap/Histogram	①	②	③	④		⑥	⑦	⑧	⑨	⑩
30	Continued fraction/Arithmetic/Construct from rational number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Convex hull	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Gapful numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
30	Metronome	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Multiplicative order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Numeric error propagation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Partition an integer X into N primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Pattern matching	①	②	③	④	⑤		⑦	⑧
30	Pentagram	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Poker hand analyser	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Reflection/List properties	①	②	③	④	⑤	⑥	⑦		⑨
30	Resistor mesh	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Simple database	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Solve a Hidato puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Terminal control/Cursor movement	①	②	③	④	⑤	⑥	⑦	⑧		⑩
30	The Name Game	①	②	③	④	⑤	⑥	⑦		⑨	⑩
29	Abbreviations, easy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Check Machin-like formulas	①	②	③	④	⑤	⑥	⑦	⑧	⑨
29	Check input device is a terminal	①	②	③	④	⑤	⑥	⑦	⑧		⑩
29	Cycle detection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Decimal floating point number to binary	①	②	③	④	⑤	⑥	⑦	⑧	⑨
29	Display a linear combination	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Execute SNUSP	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	First class environments	①	②	③	④	⑤	⑥	⑦	⑧		⑩
29	Keyboard macros	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Loops/Wrong ranges	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Loops/with multiple ranges	①	②	③	④	⑤	⑥	⑦		⑨	⑩
29	Negative base numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Use another language to call a function	①	②		④		⑥	⑦	⑧	⑨	⑩
29	Window creation/X11	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Zhang-Suen thinning algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Brazilian numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
28	Checkpoint synchronization	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Deconvolution/1D	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Determine if a string is squeezable	①	②	③	④	⑤	⑥	⑦		⑨	⑩
28	FTP	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Idiomatically determine all the lowercase and uppercase letters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Implicit type conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Memory layout of a data structure	①	②	③	④	⑤	⑥	⑦	⑧
28	Mersenne primes	①	②	③	④	⑤	⑥	⑦		⑨	⑩
28	Rosetta Code/Find unimplemented tasks	①	②	③	④	⑤			⑧
28	Set of real numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Terminal control/Preserve screen	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Xiaolin Wu's line algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Active Directory/Connect	①	②		④	⑤	⑥	⑦	⑧	⑨	⑩
27	Apply a digital filter (direct form II transposed)	①	②	③	④	⑤	⑥	⑦		⑨	⑩
27	Chat server	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Cheryl's Birthday	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Church Numerals	①	②	③	④	⑤	⑥		⑧	⑨
27	Compiler/lexical analyzer	①	②	③	④	⑤	⑥		⑧	⑨	⑩
27	Death Star	①	②	③	④	⑤	⑥		⑧	⑨	⑩
27	Eban numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
27	Formal power series	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	HTTPS/Authenticated	①	②	③	④	⑤	⑥	⑦	⑧		⑩
27	Koch curve	①	②	③	④	⑤	⑥	⑦	⑧		⑩
27	Multi-dimensional array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Parallel Brute Force	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Perfect totient numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Pragmatic directives	①	②	③	④	⑤	⑥	⑦	⑧		⑩
27	Rosetta Code/Fix code tags	①	②	③	④	⑤	⑥		⑧	⑨
27	Safe primes and unsafe primes	①	②	③	④	⑤	⑥	⑦		⑨	⑩
27	Sorting algorithms/Cycle sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Sorting algorithms/Patience sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	State name puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Textonyms	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Update a configuration file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Verify distribution uniformity/Chi-squared test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Arena storage pool	①	②	③	④		⑥	⑦	⑧		⑩
26	Bacon cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Chaocipher	①	②	③	④	⑤	⑥	⑦		⑨	⑩
26	Decision tables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Dice game probabilities	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Distributed programming	①		③	④	⑤	⑥		⑧		⑩
26	Faulhaber's formula	①	②	③	④	⑤		⑦	⑧	⑨	⑩
26	Faulhaber's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Find first and last set bit of a long integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Find largest left truncatable prime in a given base	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Go Fish	①	②	③	④		⑥	⑦	⑧	⑨	⑩
26	Honeycombs	①	②	③		⑤	⑥	⑦	⑧	⑨	⑩
26	Mian-Chowla sequence	①	②	③	④	⑤	⑥	⑦		⑨	⑩
26	Modular arithmetic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Natural sorting	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Nautical bell	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Paraffins	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Ramsey's theorem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Reflection/List methods	①	②	③	④	⑤	⑥	⑦		⑨
26	Safe addition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Same Fringe	①	②	③	④	⑤	⑥		⑧	⑨	⑩
26	Superellipse	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Table creation	①	②	③	④		⑥		⑧		⑩
25	AVL tree	①	②	③	④		⑥	⑦		⑨	⑩
25	Create an object at a given address	①	②	③	④			⑦	⑧		⑩
25	Image convolution	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Old Russian measure of length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Polyspiral	①	②	③	④		⑥	⑦	⑧	⑨	⑩
25	Sequence: smallest number with exactly n divisors	①	②	③	④	⑤	⑥	⑦		⑨	⑩
25	Strong and weak primes	①	②	③	④	⑤	⑥	⑦		⑨	⑩
25	The ISAAC Cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Card shuffles	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Determine if two triangles overlap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Factorions	①	②	③	④	⑤	⑥		⑧	⑨	⑩
24	ISBN13 check digit	①	②	③	④	⑤	⑥	⑦			⑩
24	Lah numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
24	Law of cosines - triples	①	②	③	④	⑤	⑥	⑦		⑨	⑩
24	Plasma effect	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	RCRPG	①	②	③	④	⑤	⑥		⑧	⑨	⑩
24	Sequence of primorial primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Simulate input/Keyboard	①			④	⑤	⑥	⑦	⑧	⑨	⑩
24	Solve a Holy Knight's tour	①	②	③	④	⑤	⑥	⑦	⑧	⑨
24	Sum and Product Puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨
24	Thiele's interpolation formula	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Type detection	①	②	③	④	⑤		⑦	⑧		⑩
24	Weird numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
24	Word break problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨
24	Yahoo! search interface	①			④	⑤	⑥	⑦	⑧	⑨
23	Burrows–Wheeler transform	①	②	③	④	⑤	⑥	⑦		⑨	⑩
23	Chebyshev coefficients	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Chemical Calculator	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	First perfect square in base N with N unique digits	①	②	③	④	⑤	⑥	⑦		⑨	⑩
23	Generate random chess position	①	②	③	④	⑤	⑥	⑦		⑨	⑩
23	Hough transform	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Jacobi symbol	①	②	③	④	⑤	⑥	⑦		⑨
23	K-means++ clustering	①	②	③	④		⑥	⑦	⑧		⑩
23	Kronecker product based fractals	①	②	③	④	⑤	⑥	⑦		⑨	⑩
23	Machine code	①	②	③	④		⑥	⑦	⑧		⑩
23	Main step of GOST 28147-89	①	②	③	④	⑤	⑥	⑦	⑧		⑩
23	Make a backup file	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	Perlin noise	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Play recorded sounds	①	②	③			⑥		⑧
23	Record sound	①	②	③	④		⑥	⑦	⑧		⑩
23	SOAP	①	②	③	④	⑤	⑥	⑦			⑩
23	Sequence: smallest number greater than previous term with exactly n divisors	①	②	③	④	⑤	⑥	⑦		⑨	⑩
23	Sexy primes	①	②	③	④	⑤	⑥	⑦		⑨	⑩
23	Stream Merge	①	②	③	④	⑤		⑦	⑧	⑨	⑩
23	Welch's t-test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Zumkeller numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	A* search algorithm	①	②	③	④		⑥	⑦	⑧	⑨	⑩
22	Base58Check encoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Birthday problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Cipolla's algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Deming's Funnel	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Draw a rotating cube	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Fairshare between two and more	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Four is magic	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Fraction reduction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Function frequency	①	②	③	④	⑤	⑥		⑧		⑩
22	Idiomatically determine all the characters that can be used for symbols	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Linux CPU utilization	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Magic squares of singly even order	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Palindrome dates	①	②	③	④	⑤	⑥			⑨	⑩
22	Pell's equation	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Percolation/Mean run density	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Permutations/Rank of a permutation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Ramer-Douglas-Peucker line simplification	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Range consolidation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Reverse the gender of a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Sierpinski pentagon	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Superpermutation minimisation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Tonelli-Shanks algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Total circles area	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	World Cup group stage	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Active Directory/Search for a user	①	②		④		⑥			⑨	⑩
21	AudioAlarm	①	②	③			⑥	⑦	⑧	⑨
21	Create an object/Native demonstration	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Cut a rectangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
21	Elementary cellular automaton/Random Number Generator	①	②	③	④	⑤	⑥	⑦	⑧		⑩
21	Fermat numbers	①	②	③	④	⑤	⑥			⑨	⑩
21	First power of 2 that has leading decimal digits of 12	①	②	③	④	⑤	⑥	⑦		⑨	⑩
21	Intersecting Number Wheels	①	②	③	④	⑤	⑥	⑦		⑨	⑩
21	Markov chain text generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Nonoblock	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Palindromic gapful numbers	①	②	③	④		⑥			⑨	⑩
21	Parse an IP Address	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
21	Pig the dice game/Player	①	②	③	④	⑤	⑥		⑧	⑨
21	Playfair cipher	①	②	③	④	⑤	⑥	⑦		⑨
21	Smarandache prime-digital sequence	①	②	③	④	⑤	⑥			⑨	⑩
21	Successive prime differences	①	②	③	④	⑤	⑥	⑦		⑨
21	Video display modes	①	②	③	④	⑤	⑥	⑦
21	Window management	①	②	③	④	⑤	⑥		⑧	⑨	⑩
20	Addition chains	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
20	Commatizing numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
20	Diversity prediction theorem	①	②	③	④	⑤	⑥	⑦			⑩
20	Elliptic curve arithmetic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
20	Fixed length records	①	②	③	④	⑤	⑥
20	Joystick position	①	②	③	④		⑥
20	Median filter	①	②	③	④	⑤	⑥	⑦	⑧		⑩
20	Monads/Maybe monad	①	②	③	④			⑦	⑧
20	N-smooth numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
20	Native shebang	①	②	③	④	⑤	⑥		⑧		⑩
20	Numeric separator syntax	①	②	③	④	⑤	⑥		⑧	⑨	⑩
20	Shortest common supersequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
20	Snake And Ladder	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
20	Sokoban	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
20	Solve a Hopido puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨
20	Solve a Numbrix puzzle	①	②		④	⑤	⑥	⑦	⑧	⑨
20	Stirling numbers of the first kind	①	②	③	④	⑤	⑥			⑨	⑩
20	Stirling numbers of the second kind	①	②	③	④	⑤	⑥			⑨	⑩
20	Super-d numbers	①	②	③	④	⑤	⑥	⑦		⑨
20	Yellowstone sequence	①	②	③	④	⑤	⑥			⑨
19	Angles (geometric), normalization and conversion	①	②	③	④	⑤	⑥			⑨	⑩
19	Bilinear interpolation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
19	Find duplicate files	①	②	③	④	⑤	⑥		⑧	⑨
19	Hunt The Wumpus	①	②	③	④		⑥		⑧	⑨
19	Lucky and even lucky numbers	①	②	③	④	⑤	⑥	⑦		⑨
19	Mastermind	①	②	③	④	⑤	⑥	⑦
19	Mind boggling card trick	①	②	③	④	⑤	⑥	⑦
19	N-body problem	①	②	③	④	⑤	⑥	⑦		⑨	⑩
19	Orbital elements	①	②	③	④	⑤	⑥	⑦		⑨	⑩
19	Pierpont primes	①	②	③	④	⑤	⑥	⑦		⑨	⑩
19	Readline interface	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
19	Reflection/Get source	①	②	③	④		⑥	⑦		⑨
19	Simulate input/Mouse	①		③	④		⑥	⑦	⑧	⑨	⑩
19	Spelling of ordinal numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
19	Teacup rim text	①	②	③	④	⑤	⑥			⑨	⑩
18	Circular primes	①	②	③	④	⑤		⑦		⑨	⑩
18	Code segment unload	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	Color quantization	①	②	③	④	⑤	⑥	⑦	⑧		⑩
18	Color wheel	①	②	③	④	⑤	⑥	⑦	⑧
18	Data Encryption Standard	①	②	③	④		⑥	⑦		⑨	⑩
18	Eertree	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	Finite state machine	①	②	③	④			⑦	⑧	⑨	⑩
18	K-d tree	①	②	③	④		⑥	⑦	⑧	⑨	⑩
18	Kolakoski sequence	①	②	③	④	⑤	⑥	⑦		⑨	⑩
18	Monads/List monad	①	②	③	④	⑤		⑦	⑧
18	Random Latin Squares	①	②	③	④	⑤	⑥	⑦		⑨
18	SQL-based authentication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
18	Selective File Copy	①	②	③	④	⑤		⑦	⑧	⑨
18	Sunflower fractal	①	②	③	④	⑤	⑥		⑧		⑩
18	Untrusted environment	①	②		④	⑤		⑦	⑧		⑩
18	Vigenère cipher/Cryptanalysis	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
17	Arithmetic coding/As a generalized change of radix	①	②	③	④	⑤	⑥	⑦		⑨
17	Assertions in design by contract	①	②	③	④			⑦	⑧	⑨
17	Bitcoin/public point to address	①	②	③	④	⑤	⑥		⑧		⑩
17	Compiler/code generator	①	②	③	④	⑤	⑥			⑨	⑩
17	Elementary cellular automaton/Infinite length	①	②	③	④	⑤	⑥	⑦	⑧
17	Index finite lists of positive integers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
17	Kosaraju	①	②	③	④	⑤	⑥	⑦	⑧	⑨
17	Levenshtein distance/Alignment	①	②	③	④	⑤		⑦	⑧	⑨	⑩
17	List rooted trees	①	②	③	④	⑤	⑥	⑦	⑧		⑩
17	Magnanimous numbers	①	②	③	④	⑤				⑨	⑩
17	Monads/Writer monad	①	②	③	④			⑦
17	Montgomery reduction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
17	Names to numbers	①	②	③	④	⑤	⑥	⑦	⑧
17	P-value correction	①	②	③	④	⑤	⑥	⑦		⑨	⑩
17	Peano curve	①	②	③	④	⑤	⑥		⑧		⑩
17	Perceptron	①	②	③			⑥	⑦	⑧	⑨
17	Percolation/Site percolation	①	②	③	④	⑤	⑥	⑦	⑧		⑩
17	Primes - allocate descendants to their ancestors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
17	Solve triangle solitare puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨
17	Sum data type	①	②	③	④	⑤				⑨	⑩
17	Unprimeable numbers	①	②	③	④	⑤	⑥			⑨	⑩
17	Zeckendorf arithmetic	①	②	③	④		⑥	⑦	⑧	⑨	⑩
16	Abelian sandpile model	①	②	③	④	⑤	⑥				⑩
16	Aspect Oriented Programming	①	②	③	④	⑤	⑥	⑦		⑨	⑩
16	Bioinformatics/Sequence mutation	①	②	③	④	⑤	⑥		⑧	⑨	⑩
16	Compiler/syntax analyzer	①	②	③		⑤	⑥			⑨	⑩
16	Compiler/virtual machine interpreter	①	②	③	④	⑤	⑥				⑩
16	De Bruijn sequences	①	②	③	④	⑤	⑥	⑦	⑧	⑨
16	EKG sequence convergence	①	②	③	④	⑤	⑥	⑦		⑨	⑩
16	File size distribution	①	②	③	④	⑤	⑥	⑦	⑧		⑩
16	Find URI in text	①	②	③	④			⑦	⑧
16	Gauss-Jordan matrix inversion	①	②	③	④	⑤		⑦	⑧
16	HTTPS/Client-authenticated	①	②	③	④	⑤	⑥	⑦	⑧
16	Imaginary base numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
16	Just in time processing on a character stream	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
16	Knuth's power tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨
16	Particle Swarm Optimization	①	②	③	④	⑤	⑥	⑦	⑧	⑨
16	Polynomial synthetic division	①	②	③	④	⑤	⑥	⑦	⑧	⑨
16	Self-hosting compiler	①	②		④		⑥	⑦
16	Vogel's approximation method	①	②	③	④		⑥	⑦	⑧	⑨	⑩
16	Word search	①	②	③	④	⑤	⑥	⑦	⑧	⑨
15	Bioinformatics/base count	①	②	③	④	⑤	⑥		⑧		⑩
15	Draw pixel 2	①	②	③	④	⑤		⑦	⑧		⑩
15	Esthetic numbers	①	②	③	④	⑤		⑦			⑩
15	Free polyominoes enumeration	①	②	③			⑥	⑦	⑧	⑨
15	Geometric algebra	①	②	③	④		⑥	⑦		⑨
15	Increasing gaps between consecutive Niven numbers	①	②	③	④	⑤				⑨	⑩
15	Matrix Digital Rain	①	②	③	④	⑤	⑥		⑧		⑩
15	Mertens function	①	②	③	④	⑤				⑨	⑩
15	NYSIIS	①	②	③	④	⑤	⑥	⑦	⑧	⑨
15	Nested templated data	①	②	③	④	⑤	⑥		⑧
15	Next highest int from digits	①	②	③	④	⑤	⑥			⑨	⑩
15	Nonogram solver	①	②	③		⑤	⑥	⑦	⑧	⑨
15	Percolation/Bond percolation	①	②	③	④	⑤	⑥	⑦	⑧		⑩
15	Percolation/Mean cluster density	①	②	③	④	⑤	⑥	⑦	⑧		⑩
15	Print debugging statement	①	②	③	④	⑤	⑥		⑧		⑩
15	Rendezvous	①	②	③	④				⑧		⑩
15	Retrieve and search chat history	①	②	③	④				⑧		⑩
15	Separate the house number from the street name	①	②	③	④	⑤	⑥	⑦	⑧
15	Suffix tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨
15	Terminal control/Positional read	①	②	③	④		⑥	⑦	⑧		⑩
15	Transportation problem	①	②	③	④			⑦	⑧	⑨
14	15 puzzle solver	①	②	③			⑥		⑧
14	Bitmap/Read an image through a pipe	①		③	④		⑥	⑦	⑧		⑩
14	Matrix chain multiplication	①	②	③	④	⑤		⑦		⑨	⑩
14	Mayan numerals	①	②	③	④	⑤	⑥			⑨
14	Most frequent k chars distance	①	②		④	⑤	⑥	⑦	⑧	⑨
14	Numerical integration/Adaptive Simpson's method	①	②	③	④	⑤	⑥	⑦		⑨	⑩
14	Peaceful chess queen armies	①	②	③	④	⑤	⑥	⑦		⑨	⑩
14	Primality by Wilson's theorem	①	②	③	④	⑤	⑥			⑨	⑩
14	Proof	①	②						⑧
14	Sorting algorithms/Cocktail sort with shifting bounds	①	②	③	④					⑨
14	Vibrating rectangles	①	②	③	④	⑤	⑥		⑧		⑩
13	Bitmap/PPM conversion through a pipe	①		③	④		⑥	⑦	⑧		⑩
13	Compare sorting algorithms' performance	①	②	③			⑥	⑦			⑩
13	Compiler/AST interpreter	①	②	③		⑤	⑥			⑨	⑩
13	Four is the number of letters in the ...	①	②	③	④	⑤	⑥	⑦		⑨	⑩
13	Generalised floating point addition	①	②	③	④	⑤		⑦	⑧	⑨
13	Latin Squares in reduced form	①	②	③	④		⑥	⑦		⑨
13	Metallic ratios	①	②	③	④	⑤	⑥	⑦		⑨
13	Minimum positive multiple in base 10 using only 0 and 1	①	②	③	④	⑤				⑨
13	Möbius function	①	②	③	④	⑤				⑨
13	Permutations with some identical elements	①	②	③	④	⑤
13	Sequence: nth number with exactly n divisors	①	②	③	④	⑤	⑥	⑦		⑨
13	Singly-linked list/Element removal	①	②	③	④			⑦	⑧		⑩
13	Snake	①	②	③	④	⑤		⑦		⑨
13	Tarjan	①	②	③	④	⑤	⑥	⑦	⑧
13	Topological sort/Extracted top item	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
13	XML Validation	①			④	⑤	⑥	⑦		⑨	⑩
12	Banker's algorithm	①	②	③	④	⑤		⑦	⑧		⑩
12	Chernick's Carmichael numbers	①	②	③	④	⑤				⑨	⑩
12	Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N)	①	②	③	④		⑥	⑦	⑧
12	Cyclotomic Polynomial	①	②	③	④	⑤	⑥	⑦		⑨
12	Deconvolution/2D+	①	②	③	④	⑤	⑥				⑩
12	Functional coverage tree	①	②	③	④	⑤	⑥	⑦	⑧
12	OpenWebNet Password	①	②	③	④	⑤	⑥	⑦	⑧
12	Pisano period	①	②	③	④	⑤	⑥			⑨
12	Ramanujan's constant	①	②	③	④	⑤	⑥			⑨
12	Rare numbers	①	②	③				⑦		⑨
12	Sine wave	①	②	③	④	⑤		⑦	⑧
11	21 Game	①	②	③	④	⑤	⑥		⑧	⑨
11	Canny edge detector	①	②	③			⑥				⑩
11	Gradient descent	①	②	③	④	⑤			⑧
11	Safe mode	①	②		④	⑤
11	Simulated annealing	①	②	③	④	⑤			⑧
11	UPC	①	②	③	④	⑤
11	VList	①	②		④			⑦	⑧		⑩
10	ASCII art diagram converter	①	②	③	④				⑧	⑨
10	Audio frequency generator	①	②	③		⑤
10	Execute CopyPasta Language	①	②	③	④	⑤	⑥			⑨
10	External sort	①	②	③	④	⑤	⑥
10	Factorial base numbers indexing permutations of a collection	①	②	③	④	⑤	⑥
10	Interactive Help	①	②	③	④	⑤			⑧
10	Length of an arc between two angles	①	②	③	④	⑤
10	Line circle intersection	①	②	③	④	⑤		⑦			⑩
10	Penrose tiling	①	②	③	④	⑤		⑦	⑧	⑨
10	Railway circuit	①	②	③	④			⑦	⑧	⑨
10	Run as a daemon or service	①			④		⑥		⑧		⑩
10	Sierpinski arrowhead curve	①	②	③	④	⑤					⑩
10	Sierpinski curve	①	②	③	④	⑤				⑨
10	Sierpinski square curve	①	②	③	④	⑤				⑨
10	Spoof game	①	②	③	④	⑤		⑦			⑩
10	Tetris	①	②	③						⑨
9	Catmull–Clark subdivision surface	①		③			⑥				⑩
9	Colour pinstripe/Printer	①	②	③	④		⑥		⑧
9	Combinations with repetitions/Square Digit Chain	①	②	③	④	⑤		⑦
9	Fibonacci matrix-exponentiation	①	②	③	④	⑤				⑨
9	French Republican calendar	①	②	③	④	⑤		⑦
9	Geohash	①	②	③	④		⑥
9	Greed	①	②	③				⑦		⑨
9	Launch rocket with countdown and acceleration in stdout	①	②	③	④	⑤			⑧
9	Logistic Curve Fitting in Epidemiology	①	②	③	④	⑤	⑥
9	Morpion solitaire	①	②	③					⑧	⑨	⑩
9	Nimber arithmetic	①	②	③	④						⑩
9	Parse EBNF	①	②		④	⑤
9	Pentomino tiling	①	②	③				⑦	⑧	⑨
9	Pinstripe/Printer	①	②	③	④				⑧
9	Resistance Calculator	①	②	③	④	⑤	⑥
9	Sorting algorithms/Tree sort on a linked list	①	②	③				⑦	⑧
9	Starting a web browser	①	②	③	④	⑤			⑧
9	Suffixation of decimal numbers	①	②	③	④	⑤	⑥
9	Time-based One-time Password Algorithm	①		③	④				⑧
8	Checksumcolor	①	②	③	④	⑤
8	Faces from a mesh	①	②	③	④	⑤	⑥
8	Minimal steps down to 1	①	②	③	④		⑥			⑨
8	Numerical and alphabetical suffixes	①	②	③	④		⑥
8	One-time pad	①	②	③	④			⑦	⑧	⑨
8	Powerful numbers	①	②	③	④	⑤				⑨
8	Unit testing	①		③	④				⑧
8	User defined pipe and redirection operators	①	②		④	⑤			⑧
8	Using a Speech engine to highlight words	①	②
7	16 Puzzle Game	①	②	③		⑤
7	Compiler/Verifying Syntax	①	②	③	④	⑤					⑩
7	Curve that touches three points	①	②	③	④	⑤
7	Display an outline as a nested table	①	②	③	④	⑤
7	Fibonacci heap	①	②	③	④		⑥	⑦
7	IPC via named pipe	①							⑧		⑩
7	Long literals, with continuations	①	②	③	④
7	Multidimensional Newton-Raphson method	①	②	③	④			⑦
7	Quoting constructs	①	②	③	④
7	Resistance Network Calculator	①	②	③	④	⑤	⑥
7	Robots	①	②	③	④			⑦		⑨
7	Rosetta Code/Rank languages by number of users	①	②		④	⑤			⑧
7	Tree datastructures	①	②	③	④	⑤	⑥
6	Elliptic Curve Digital Signature Algorithm	①	②	③	④						⑩
6	Graph colouring	①	②	③	④		⑥
6	Mayan calendar	①	②	③	④	⑤
6	OpenGL Pixel Shader	①						⑦	⑧		⑩
6	OpenGL/Utah Teapot	①	②					⑦			⑩
6	Print itself	①	②		④
6	Recursive descent parser generator	①	②	③	④
6	Rosetta Code/Run examples	①			④
6	Rosetta Code/Tasks without examples	①	②		④	⑤
6	Text to HTML	①	②		④				⑧
5	Addition-chain exponentiation	①	②						⑧		⑩
5	Black Box	①	②	③
5	Boids	①	②	③						⑨	⑩
5	Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2)	①			④			⑦
5	Hexapawn	①	②	③
5	Raster bars	①	②	③	④
5	Remote agent/Agent interface	①		③							⑩
5	Remote agent/Agent logic	①		③							⑩
5	Remote agent/Simulation	①		③							⑩
5	Solve a Rubik's Cube	①	②	③				⑦
5	Terminal control/Restricted width positional input/No wrapping	①	②		④			⑦
5	Terminal control/Restricted width positional input/With wrapping	①	②		④			⑦
5	URL shortener	①		③	④
5	XXXX redacted	①	②	③	④	⑤
4	Audio Overlap Loop	①		③
4	Chess player	①	②				⑥
4	Generalised floating point multiplication	①	②	③
4	I'm a software engineer, get me out of here	①	②	③
4	OLE Automation	①					⑥
4	Process SMIL directives in XML data	①	②		④
4	Tamagotchi emulator	①
4	Using the Meetup.com API	①					⑥			⑨
4	Weather Routing	①	②	③
3	Latin Squares in reduced form/Randomizing using Jacobson and Matthews’ Technique	①	②
3	Rosetta Code/List authors of task descriptions	①	②		④
3	Solving coin problems	①	②			⑤
3	Unicode polynomial equation	①	②	③
3	Vidir		②		④
3	Waveform analysis/Doh ray me	①	②	③
2	15 Puzzle Game in 3D	①
2	CLI-based maze-game		②
2	IRC gateway	①
2	Waveform analysis/Top and tail	①		③
1	Blackjack strategy	①
1	Create DWM statusbar
1	Ukkonen’s Suffix Tree Construction	①