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 C
⑨ Racket
⑩ Java

As of 2020-09-13T21:43:32Z :: Tasks: 1068 :: Draft Tasks:205 :: Total Tasks: 1273 :: Total Examples: 69927

Count	Task	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
468	Hello world/Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
313	99 Bottles of Beer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
309	100 doors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
304	FizzBuzz	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
280	Factorial	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
279	Fibonacci sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
269	Comments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
257	A+B	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
252	Empty program	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
235	Function definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
224	Loops/Infinite	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
221	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
217	Loops/While	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
213	Ackermann function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
203	Loops/For	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
197	Conditional structures	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
195	Greatest element of a list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
193	Arithmetic/Integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
185	Array concatenation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
185	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
181	Increment a numerical string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
180	Boolean values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
179	Even or odd	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
179	Loops/Downward for	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
175	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
164	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
162	String concatenation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
161	Loops/Do-while	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
160	Hello world/Newline omission	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
160	Loops/For with a specified step	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	Array length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
159	Binary digits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
159	Loops/Foreach	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
158	Sieve of Eratosthenes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
157	Loops/Break	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
157	String length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
156	Loops/N plus one half	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
155	Sum of a series	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
154	Integer sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
154	Palindrome detection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
154	String case	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
152	Generic swap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
152	Leap year	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
152	Tokenize a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
151	Hailstone sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
151	Logical operations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
150	Dot product	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
150	Empty string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
150	Rot-13	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
150	Sum of squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
150	Towers of Hanoi	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
148	Filter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
147	Associative array/Creation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
145	Sort an integer array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
145	Sorting algorithms/Bubble sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
144	Factors of an integer	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
142	Quine	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
141	Caesar cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
140	Guess the number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
140	Higher-order functions	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	User input/Text	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	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	Roman numerals/Encode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
136	System time	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
133	Sorting algorithms/Quicksort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
132	Create a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
131	Substring	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
130	Sleep	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
129	Stack	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
127	Literals/String	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
127	Mutual recursion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
126	Happy numbers	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	Pascal's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
124	Least common multiple	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Binary search	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Date format	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Zero to the zero power	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
122	Flatten a list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
122	Variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
121	Include a file	①	②	③	④	⑤	⑥	⑦		⑨	⑩
121	Literals/Integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
120	Balanced brackets	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
119	Compound data type	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
119	Knuth shuffle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
119	Loops/Nested	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
119	Program termination	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	Function composition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
117	ABC Problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
117	Null object	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
116	Hash from two arrays	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
116	Read a file line by line	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	Ethiopian multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	File size	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	Mandelbrot set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	Sorting algorithms/Insertion sort	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	N-queens problem	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	Count occurrences of a substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Averages/Median	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Case-sensitivity of identifiers	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
112	Multiplication tables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Roman numerals/Decode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Hostname	①	②	③	④	⑤	⑥	⑦		⑨	⑩
111	Matrix multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Matrix transposition	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
110	Anagrams	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	Random numbers	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	Pick random element	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Find limit of recursion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Haversine formula	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Perfect numbers	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	Accumulator factory	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
107	Align columns	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
107	Arithmetic/Complex	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
107	Babbage problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Conway's Game of Life	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Letter frequency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Pangram checker	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
105	Assertions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
105	Horner's rule for polynomial evaluation	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	Infinity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Program name	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Variadic function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Arithmetic-geometric mean	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Levenshtein distance	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Permutations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Strip a set of characters from a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Temperature conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
102	Evaluate binomial coefficients	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
102	Regular expressions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
102	Run-length encoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Exceptions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	String append	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Zig-zag matrix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Nth root	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Queue/Definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	String interpolation (included)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Substring/Top and tail	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Trigonometric functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Anonymous recursion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Combinations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Reverse words in a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Strip whitespace from a string/Top and tail	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	Sorting algorithms/Merge sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Look-and-say sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Prime decomposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Sorting algorithms/Selection sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
96	Bulls and cows	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
95	24 game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	Create a two-dimensional array at runtime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	Interactive programming	①	②	③	④	⑤	⑥	⑦		⑨	⑩
95	Ordered words	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	Sierpinski triangle	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	Collections	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	Enumerations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	Y combinator	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	Range extraction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	String prepend	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Arbitrary-precision integers (included)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Evolutionary algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Exponentiation operator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	First-class functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Sorting algorithms/Gnome sort	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
92	Vector products	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	Sorting algorithms/Cocktail sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	Create an HTML table	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	Sierpinski carpet	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
90	Walk a directory/Non-recursively	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Averages/Simple moving average	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	Execute Brain****	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
88	Averages/Mode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
88	Digital root	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	JSON	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Langton's ant	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	N'th	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Sort using a custom comparator	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
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	Sorting algorithms/Bogosort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	String comparison	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Abundant, deficient and perfect number classifications	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	CSV data manipulation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Greatest subsequential sum	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	Price fraction	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	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
83	The Twelve Days of Christmas	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Tree traversal	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	Menu	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Number names	①	②	③	④	⑤		⑦	⑧	⑨	⑩
81	Map range	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Simple windowed application	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Sort an array of composite structures	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Sorting algorithms/Heapsort	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	Hello world/Newbie	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	Queue/Usage	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Hello world/Line printer	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	SEDOLs	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Catamorphism	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Floyd's triangle	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	Read a specific line from a file	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	Terminal control/Clear the screen	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Walk a directory/Recursively	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Web scraping	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Calculating the value of e	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	Number reversal game	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/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	XML/Input	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Bitmap	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	Count the coins	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Playing cards	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Roots of unity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Address of a variable	①	②	③	④	⑤	⑥	⑦		⑨	⑩
75	CRC-32	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
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	Find common directory path	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Hofstadter Q sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Knapsack problem/0-1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Order two numerical lists	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Pythagorean triples	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Show the epoch	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Sorting algorithms/Counting sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Averages/Mean angle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Dynamic variable names	①	②	③	④	⑤	⑥	⑦		⑨
74	Fibonacci n-step number sequences	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Find the last Sunday of each month	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Keyboard input/Obtain a Y or N response	①	②	③	④	⑤	⑥	⑦	⑧	⑨
74	Linear congruential generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Lucas-Lehmer test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Multifactorial	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Proper divisors	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	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	⑨
73	Sorting algorithms/Comb sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Soundex	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
73	Word wrap	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	Non-decimal radices/Output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Operator precedence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Semordnilap	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	Empty directory	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	Find the missing permutation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Gamma function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Jensen's Device	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Modular inverse	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	SHA-1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	SHA-256	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	Animation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Calendar	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Parsing/RPN calculator algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Phrase reversals	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Pi	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Repeat	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Split a character string based on change of character	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	Draw a sphere	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Execute HQ9+	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Flow-control structures	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Four bit adder	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	IBAN	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	Rock-paper-scissors	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	AKS test for primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Anagrams/Deranged anagrams	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	Multiple distinct objects	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	Sort disjoint sublist	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	Trabb Pardo–Knuth algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Vigenère cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	15 Puzzle Game	①	②	③	④	⑤	⑥	⑦	⑧	⑨
67	Call a foreign-language function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Currying	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Enforced immutability	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Fork	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Guess the number/With feedback (player)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Horizontal sundial calculations	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	Sorting algorithms/Stooge sort	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
67	Zeckendorf number representation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Catalan numbers/Pascal's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Euler's sum of powers conjecture	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Fractal tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Maze generation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Numerical integration	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Arithmetic/Rational	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	Combinations with repetitions	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	Largest int from concatenated ints	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	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	Optional parameters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Variable size/Get	①	②	③	④	⑤	⑥	⑦	⑧	⑨
64	Closest-pair problem	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		⑨	⑩
64	Hofstadter-Conway $10,000 sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Inheritance/Multiple	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Morse code	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Population count	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Runtime evaluation	①		③	④	⑤	⑥	⑦		⑨	⑩
64	Sort stability	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Amb	①	②	③	④	⑤	⑥	⑦	⑧	⑨
63	Continued fraction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Documentation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Jump anywhere	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Roots of a function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Show Ascii table	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	Fast Fourier transform	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	Nested function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Priority queue	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	Singly-linked list/Element insertion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Sorting algorithms/Pancake sort	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
62	Undefined values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Write language name in 3D ASCII	①	②	③	④	⑤	⑥	⑦	⑧	⑨	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	Memory allocation	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	Pernicious numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Barnsley fern	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Binary strings	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	General FizzBuzz	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Probabilistic choice	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Rep-string	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	Sorting algorithms/Sleep sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Arithmetic evaluation	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	Circles of given radius through two points	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Draw a clock	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Exponentiation order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Globally replace text in several files	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Host introspection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Old lady swallowed a fly	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Runge-Kutta method	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Test a function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	User input/Graphical	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Get system command output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Modular exponentiation	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	Partial function application	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Plot coordinate pairs	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Reduced row echelon form	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Thue-Morse	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	Angle difference between two bearings	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	Generator/Exponential	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Huffman coding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Left factorials	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	Mouse position	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Semiprime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Sorting algorithms/Bead sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Unicode strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	9 billion names of God the integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Add a variable to a class instance at runtime	①	②	③	④	⑤	⑥	⑦
56	Anti-primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Best shuffle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Brownian tree	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	Emirp primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Fibonacci word	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Hash join	①	②	③	④	⑤	⑥	⑦		⑨	⑩
56	JortSort	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	Sorting algorithms/Permutation sort	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	Truncatable primes	①	②	③	④	⑤		⑦	⑧	⑨	⑩
56	XML/XPath	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	4-rings or 4-squares puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Bitmap/Write a PPM file	①	②	③	④	⑤	⑥	⑦	⑧	⑨
55	Compile-time calculation	①	②	③	④	⑤		⑦	⑧	⑨
55	Deal cards for FreeCell	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Define a primitive data type	①	②	③	④	⑤	⑥	⑦		⑨	⑩
55	Department Numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Dinesman's multiple-dwelling problem	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	I before E except after C	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Knapsack problem/Continuous	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Odd word problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Singleton	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Sort three variables	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	Two Sum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Word frequency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Delegates	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	Multisplit	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Random number generator (device)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Runtime evaluation/In an environment	①		③	④	⑤	⑥	⑦		⑨	⑩
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	Yin and yang	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Draw a cuboid	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	Grayscale image	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Leonardo numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Matrix-exponentiation operator	①	②	③	④	⑤	⑥	⑦	⑧	⑨
53	Munching squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Pointers and references	①	②	③	④	⑤	⑥	⑦		⑨	⑩
53	Rosetta Code/Rank languages by popularity	①	②	③	④	⑤	⑥	⑦	⑧	⑨
53	Send email	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Sierpinski triangle/Graphical	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Synchronous concurrency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Topological sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	XML/DOM serialization	①	②	③	④	⑤	⑥	⑦	⑧	⑨	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	Handle a signal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Inverted syntax	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Iterated digits squaring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Maximum triangle path sum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Terminal control/Cursor positioning	①	②	③	④	⑤	⑥	⑦		⑨
52	Truncate a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	2048	①	②	③	④		⑥	⑦	⑧	⑨	⑩
51	Base64 encode data	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Modulinos	①	②	③	④	⑤	⑥		⑧	⑨	⑩
51	Statistics/Basic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Subleq	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Ternary logic	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	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	Discordian date	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Heronian triangles	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Ludic numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Mad Libs	①	②	③	④	⑤	⑥	⑦		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	Respond to an unknown method call	①	②	③	④	⑤	⑥	⑦		⑨
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	Chinese zodiac	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Draw a pixel	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	First-class functions/Use numbers analogously	①	②	③	④	⑤	⑥	⑦		⑨
49	Fractran	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Keyboard input/Keypress check	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Longest common prefix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Seven-sided dice from five-sided dice	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Terminal control/Coloured text	①	②	③	④	⑤	⑥	⑦	⑧	⑨
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
48	Attractive numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Call a function in a shared library	①	②	③	④	⑤	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	Longest increasing subsequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Text processing/1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	DNS query	①	②	③	④	⑤		⑦		⑨
47	Damm algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Dijkstra's algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Echo server	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Find the intersection of two lines	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	GUI component interaction	①	②	③	④		⑥	⑦	⑧	⑨	⑩
47	Gaussian elimination	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Loops/Increment loop index within loop body	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	Zebra puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Determine if only one instance is running	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Doubly-linked list/Element insertion	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	Egyptian division	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Extensible prime generator	①	②	③	④	⑤	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	Metaprogramming	①	②	③	④	⑤	⑥	⑦	⑧	⑨
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
46	Vector	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	100 prisoners	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Append a record to the end of a text file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Archimedean spiral	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Bitmap/Flood fill	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Colour bars/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	History variables	①	②	③	④	⑤	⑥	⑦		⑨	⑩
45	Hofstadter Figure-Figure sequences	①	②	③	④	⑤	⑥		⑧	⑨	⑩
45	Holidays related to Easter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Jaro distance	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	Naming conventions	①	②	③	④	⑤	⑥	⑦	⑧	⑨
45	Pascal matrix generation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Password generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Send an unknown method call	①	②	③	④	⑤	⑥	⑦		⑨	⑩
45	Strip block comments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Abundant odd numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Average loop length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Carmichael 3 strong pseudoprimes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Execute a Markov algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
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			⑨	⑩
44	Set consolidation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Base64 decode data	①	②	③	④	⑤	⑥	⑦	⑧		⑩
43	Bitmap/Read a PPM file	①	②	③	④	⑤	⑥	⑦	⑧	⑨
43	Determinant and permanent	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Doubly-linked list/Definition	①	②	③	④		⑥	⑦	⑧	⑨	⑩
43	Image noise	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	Polynomial long division	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Sattolo cycle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Sort numbers lexicographically	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Sparkline in unicode	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	Active object	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Chaos game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Determine if a string has all the same characters	①	②	③	④	⑤	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	Keyboard input/Flush the keyboard buffer	①	②	③	④	⑤	⑥	⑦	⑧	⑨
42	Kronecker product	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Longest Common Substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	OpenGL	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Percentage difference between images	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Sorting algorithms/Radix sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Ulam spiral (for primes)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Variable size/Set	①	②	③	④	⑤	⑥	⑦	⑧	⑨
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	Cantor set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Digital root/Multiplicative digital root	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Hickerson series of almost integers	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	MD5/Implementation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	McNuggets Problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Narcissist	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	RPG Attributes Generator	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	Spinning rod animation/Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Start from a main routine	①	②	③	④	⑤		⑦	⑧	⑨
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	⑨
41	Twelve statements	①	②	③	④	⑤	⑥	⑦		⑨	⑩
40	Calendar - for "REAL" programmers	①	②	③	④	⑤		⑦	⑧	⑨
40	Elementary cellular automaton	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Fusc sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	GUI/Maximum window dimensions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Long year?	①	②	③	④	⑤	⑥	⑦			⑩
40	Problem of Apollonius	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Sorting algorithms/Strand sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Speech synthesis	①	②	③	④	⑤	⑥	⑦	⑧	⑨
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	⑨
40	Text between	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Water collected between towers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Aliquot sequence classifications	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Color of a screen pixel	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Determine if a string has all unique characters	①	②	③	④	⑤	⑥	⑦	⑧		⑩
39	GUI enabling/disabling of controls	①	②	③	④		⑥	⑦	⑧	⑨	⑩
39	Hilbert curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Kernighans large earthquake problem	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	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	Topswops	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	UTF-8 encode and decode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Balanced ternary	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Break OO privacy	①	②	③	④	⑤	⑥	⑦			⑩
38	Casting out nines	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		⑨	⑩
38	Copy stdin to stdout	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Julia set	①	②	③	④	⑤	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	Sorting Algorithms/Circle Sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Van Eck sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Variable-length quantity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Voronoi diagram	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Associative array/Merging	①	②	③	④	⑤	⑥	⑦		⑨	⑩
37	Chowla numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Currency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
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	Inverted index	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Knuth's algorithm S	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	LU decomposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Nim Game	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	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	⑨
37	Vampire number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Bitmap/Midpoint circle algorithm	①	②	③	④		⑥	⑦		⑨
36	Brace expansion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Create a file on magnetic tape	①	②	③	④		⑥	⑦	⑧	⑨	⑩
36	File extension is in extensions list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Find palindromic numbers in both binary and ternary bases	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Fivenum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Function prototype	①	②	③	④	⑤		⑦	⑧	⑨
36	Magic 8-Ball	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Magic squares of doubly even order	①	②	③	④	⑤	⑥	⑦	⑧		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	⑨
35	Abbreviations, automatic	①	②	③	④	⑤	⑥	⑦	⑧		⑩
35	Bell numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
35	Colour pinstripe/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Cramer's rule	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Determine if a string is collapsible	①	②	③	④	⑤	⑥	⑦	⑧		⑩
35	Euler's identity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Events	①	②	③	④	⑤	⑥		⑧	⑨
35	Input/Output for Lines of Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Input/Output for Pairs of Numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Lychrel numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
35	MAC Vendor Lookup	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
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	⑨
35	Musical scale	①	②	③	④	⑤	⑥	⑦	⑧	⑨
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		⑨	⑩
35	Order disjoint list items	①	②	③	④	⑤	⑥	⑦		⑨	⑩
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	Scope/Function names and labels	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Square but not cube	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Substitution Cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Terminal control/Unicode output	①	②	③	④	⑤	⑥	⑦	⑧	⑨
34	Bitwise IO	①	②	③	④	⑤	⑥	⑦	⑧	⑨
34	Cuban primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Days between dates	①	②	③	④	⑤	⑥	⑦	⑧		⑩
34	Feigenbaum constant calculation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Fibonacci word/fractal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Floyd-Warshall algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Gapful numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
34	Maze solving	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	Pinstripe/Display	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	Arithmetic-geometric mean/Calculate Pi	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Egyptian fractions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Entropy/Narcissist	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Executable library	①	②	③	④	⑤	⑥		⑧	⑨	⑩
33	Integer roots	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Kahan summation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Largest number divisible by its digits	①	②	③	④	⑤	⑥	⑦	⑧		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	Read a file character by character/UTF8	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Square-free integers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Totient function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
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	⑨
32	Check output device is a terminal	①	②	③	④	⑤	⑥	⑦	⑧	⑨
32	Find the intersection of a line with a plane	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Humble numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Mutex	①	②	③	④	⑤	⑥		⑧	⑨	⑩
32	Ordered Partitions	①	②	③	④	⑤	⑥	⑦	⑧	⑨
32	Parse command-line arguments	①	②	③	④	⑤	⑥	⑦	⑧	⑨
32	Pentagram	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	Rosetta Code/Find bare lang tags	①	②	③	④	⑤			⑧	⑨
32	Solve the no connection puzzle	①	②	③	④	⑤	⑥	⑦		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		⑨	⑩
31	Approximate Equality	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Conjugate transpose	①	②	③	④	⑤	⑥	⑦	⑧	⑨
31	Decimal floating point number to binary	①	②	③	④	⑤	⑥	⑦		⑨	⑩
31	Display a linear combination	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Execute SNUSP	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	Long primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Loops/Wrong ranges	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Loops/with multiple ranges	①	②	③	④	⑤	⑥	⑦	⑧		⑩
31	Multiple regression	①	②	③	④	⑤	⑥	⑦	⑧	⑨
31	Pattern matching	①	②	③	④	⑤		⑦		⑨
31	RSA code	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Recaman's sequence	①	②	③	④	⑤	⑥	⑦	⑧		⑩
31	Resistor mesh	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Set puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Sorting algorithms/Patience sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
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	The Name Game	①	②	③	④	⑤	⑥	⑦	⑧		⑩
31	Topic variable	①	②	③	④	⑤	⑥	⑦		⑨
31	Write to Windows event log	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Abbreviations, easy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Abbreviations, simple	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Bitmap/Bézier curves/Quadratic	①	②	③	④		⑥	⑦	⑧	⑨
30	Bitmap/Histogram	①	②	③	④		⑥	⑦	⑧	⑨	⑩
30	Brazilian numbers	①	②	③	④	⑤	⑥	⑦	⑧		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	Determine if a string is squeezable	①	②	③	④	⑤	⑥	⑦	⑧		⑩
30	ISBN13 check digit	①	②	③	④	⑤	⑥	⑦	⑧	⑨
30	Keyboard macros	①	②	③	④	⑤	⑥	⑦	⑧	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	Poker hand analyser	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Reflection/List properties	①	②	③	④	⑤	⑥	⑦			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	⑨
30	Textonyms	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Apply a digital filter (direct form II transposed)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Check Machin-like formulas	①	②	③	④	⑤	⑥	⑦		⑨	⑩
29	Check input device is a terminal	①	②	③	④	⑤	⑥	⑦	⑧	⑨
29	Cycle detection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	First class environments	①	②	③	④	⑤	⑥	⑦	⑧	⑨
29	Implicit type conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Negative base numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Palindrome dates	①	②	③	④	⑤	⑥		⑧		⑩
29	Terminal control/Preserve screen	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	21 Game	①	②	③	④	⑤	⑥		⑧	⑨	⑩
28	Bacon cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Chat server	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Checkpoint synchronization	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Cheryl's Birthday	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Compiler/lexical analyzer	①	②	③	④	⑤	⑥		⑧	⑨	⑩
28	Death Star	①	②	③	④	⑤	⑥		⑧	⑨	⑩
28	Deconvolution/1D	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Determine if two triangles overlap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Eban numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	FTP	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	HTTPS/Authenticated	①	②	③	④	⑤	⑥	⑦	⑧	⑨
28	Idiomatically determine all the lowercase and uppercase letters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Koch curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨
28	Memory layout of a data structure	①	②	③	④	⑤	⑥	⑦		⑨
28	Mersenne primes	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	Multi-dimensional array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Parallel Brute Force	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Perfect totient numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Rosetta Code/Find unimplemented tasks	①	②	③	④	⑤				⑨
28	Safe primes and unsafe primes	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	Sequence: smallest number greater than previous term with exactly n divisors	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	Sequence: smallest number with exactly n divisors	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	Set of real numbers	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	Arena storage pool	①	②	③	④		⑥	⑦	⑧	⑨
27	Chaocipher	①	②	③	④	⑤	⑥	⑦	⑧		⑩
27	Church Numerals	①	②	③	④	⑤	⑥			⑨	⑩
27	Faulhaber's formula	①	②	③	④	⑤		⑦	⑧	⑨	⑩
27	Faulhaber's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Find first and last set bit of a long integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Formal power series	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Jacobi symbol	①	②	③	④	⑤	⑥	⑦	⑧		⑩
27	Modular arithmetic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Paraffins	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Pragmatic directives	①	②	③	④	⑤	⑥	⑦	⑧	⑨
27	Rosetta Code/Fix code tags	①	②	③	④	⑤	⑥			⑨	⑩
27	Sorting algorithms/Cycle 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	Superellipse	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	Chemical Calculator	①	②	③	④	⑤	⑥	⑦	⑧	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	⑨
26	Find largest left truncatable prime in a given base	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Four is magic	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	Lah numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Mian-Chowla sequence	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Natural sorting	①	②	③	④	⑤	⑥	⑦	⑧	⑨
26	Nautical bell	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Old Russian measure of length	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			⑩
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	Strong and weak primes	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Sum and Product Puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Table creation	①	②	③	④		⑥		⑧	⑨
25	AVL tree	①	②	③	④		⑥	⑦	⑧		⑩
25	Birthday problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Burrows–Wheeler transform	①	②	③	④	⑤	⑥	⑦	⑧		⑩
25	Card shuffles	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Create an object at a given address	①	②	③	④			⑦	⑧	⑨
25	Diversity prediction theorem	①	②	③	④	⑤	⑥	⑦	⑧
25	Factorions	①	②	③	④	⑤	⑥		⑧	⑨	⑩
25	Fairshare between two and more	①	②	③	④	⑤	⑥	⑦	⑧		⑩
25	Image convolution	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Law of cosines - triples	①	②	③	④	⑤	⑥	⑦	⑧		⑩
25	Polyspiral	①	②	③	④		⑥	⑦	⑧	⑨	⑩
25	RCRPG	①	②	③	④	⑤	⑥		⑧	⑨	⑩
25	Smarandache prime-digital sequence	①	②	③	④	⑤	⑥		⑧		⑩
25	Super-d numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
25	The ISAAC Cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Thiele's interpolation formula	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Weird numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Word break problem	①	②	③	④	⑤	⑥	⑦		⑨	⑩
24	Cut a rectangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	First power of 2 that has leading decimal digits of 12	①	②	③	④	⑤	⑥	⑦	⑧		⑩
24	Fraction reduction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	K-means++ clustering	①	②	③	④		⑥	⑦	⑧	⑨	⑩
24	Kronecker product based fractals	①	②	③	④	⑤	⑥	⑦	⑧		⑩
24	Plasma effect	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Play recorded sounds	①	②	③			⑥			⑨
24	Ramer-Douglas-Peucker line simplification	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Sequence of primorial primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Sexy primes	①	②	③	④	⑤	⑥	⑦	⑧		⑩
24	Sierpinski pentagon	①		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		⑨	⑩
24	Type detection	①	②	③	④	⑤		⑦	⑧	⑨
24	Welch's t-test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Yahoo! search interface	①			④	⑤	⑥	⑦		⑨	⑩
23	Chebyshev coefficients	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Draw a rotating cube	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Fermat numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
23	First perfect square in base N with N unique digits	①	②	③	④	⑤	⑥	⑦	⑧		⑩
23	Generate random chess position	①	②	③	④	⑤	⑥	⑦	⑧		⑩
23	Hough transform	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Machine code	①	②	③	④		⑥	⑦	⑧	⑨
23	Main step of GOST 28147-89	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	Make a backup file	①	②	③	④	⑤	⑥	⑦		⑨	⑩
23	Peano curve	①	②	③	④	⑤	⑥		⑧	⑨	⑩
23	Pell's equation	①	②	③	④	⑤	⑥	⑦	⑧		⑩
23	Perlin noise	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Record sound	①	②	③	④		⑥	⑦	⑧	⑨
23	SOAP	①	②	③	④	⑤	⑥	⑦	⑧
23	Stream Merge	①	②	③	④	⑤		⑦	⑧	⑨	⑩
23	Teacup rim text	①	②	③	④	⑤	⑥		⑧		⑩
23	Yellowstone sequence	①	②	③	④	⑤	⑥	⑦		⑨	⑩
23	Zumkeller numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	A* search algorithm	①	②	③	④		⑥	⑦	⑧	⑨	⑩
22	Angles (geometric), normalization and conversion	①	②	③	④	⑤	⑥		⑧	⑨	⑩
22	AudioAlarm	①	②	③			⑥	⑦		⑨	⑩
22	Base58Check encoding	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Cipolla's algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Color wheel	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Deming's Funnel	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Function frequency	①	②	③	④	⑤	⑥		⑧	⑨
22	Idiomatically determine all the characters that can be used for symbols	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Linux CPU utilization	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Magic squares of singly even order	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Markov chain text generator	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	N-smooth numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Percolation/Mean run density	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Permutations/Rank of a permutation	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		⑨	⑩
22	Spelling of ordinal numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Stirling numbers of the first kind	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Stirling numbers of the second kind	①	②	③	④	⑤	⑥		⑧		⑩
22	Successive prime differences	①	②	③	④	⑤	⑥	⑦			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	Video display modes	①	②	③	④	⑤	⑥	⑦
22	World Cup group stage	①	②	③	④	⑤	⑥	⑦		⑨	⑩
21	Active Directory/Search for a user	①	②		④		⑥		⑧		⑩
21	Create an object/Native demonstration	①	②	③	④	⑤	⑥	⑦		⑨	⑩
21	Elementary cellular automaton/Random Number Generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Fixed length records	①	②	③	④	⑤	⑥
21	Intersecting Number Wheels	①	②	③	④	⑤	⑥	⑦	⑧		⑩
21	Joystick position	①	②	③	④		⑥
21	Monads/Maybe monad	①	②	③	④			⑦		⑨
21	Nonoblock	①	②	③	④	⑤	⑥	⑦		⑨	⑩
21	Palindromic gapful numbers	①	②	③	④		⑥		⑧		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			⑨	⑩
21	Playfair cipher	①	②	③	④	⑤	⑥	⑦			⑩
21	Unprimeable numbers	①	②	③	④	⑤	⑥		⑧	⑨	⑩
21	Window management	①	②	③	④	⑤	⑥		⑧	⑨	⑩
20	Abelian sandpile model	①	②	③	④	⑤	⑥		⑧		⑩
20	Addition chains	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
20	Circular primes	①	②	③	④	⑤	⑥	⑦	⑧		⑩
20	Commatizing numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
20	Data Encryption Standard	①	②	③	④	⑤	⑥	⑦	⑧		⑩
20	Elliptic curve arithmetic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
20	Median filter	①	②	③	④	⑤	⑥	⑦	⑧	⑨
20	Mind boggling card trick	①	②	③	④	⑤	⑥	⑦
20	Native shebang	①	②	③	④	⑤	⑥		⑧	⑨
20	Numeric separator syntax	①	②	③	④	⑤	⑥		⑧	⑨	⑩
20	Orbital elements	①	②	③	④	⑤	⑥	⑦	⑧		⑩
20	Random Latin Squares	①	②	③	④	⑤	⑥	⑦	⑧		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		⑨	⑩
20	Solve a Numbrix puzzle	①	②		④	⑤	⑥	⑦		⑨	⑩
19	Bilinear interpolation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
19	Bioinformatics/base count	①	②	③	④	⑤	⑥		⑧	⑨	⑩
19	Find duplicate files	①	②	③	④	⑤	⑥			⑨	⑩
19	Finite state machine	①	②	③	④		⑥	⑦	⑧	⑨	⑩
19	Hunt The Wumpus	①	②	③	④		⑥			⑨	⑩
19	Kolakoski sequence	①	②	③	④	⑤	⑥	⑦	⑧		⑩
19	Lucky and even lucky numbers	①	②	③	④	⑤	⑥	⑦			⑩
19	Mastermind	①	②	③	④	⑤	⑥	⑦
19	Monads/List monad	①	②	③	④	⑤		⑦		⑨
19	N-body problem	①	②	③	④	⑤	⑥	⑦	⑧		⑩
19	Next highest int from digits	①	②	③	④	⑤	⑥	⑦	⑧		⑩
19	Pierpont primes	①	②	③	④	⑤	⑥	⑦	⑧		⑩
19	Primality by Wilson's theorem	①	②	③	④	⑤	⑥		⑧		⑩
19	Readline interface	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
19	Reflection/Get source	①	②	③	④		⑥	⑦			⑩
19	Simulate input/Mouse	①		③	④		⑥	⑦	⑧	⑨	⑩
19	Sorting algorithms/Cocktail sort with shifting bounds	①	②	③	④	⑤			⑧		⑩
19	Sunflower fractal	①	②	③	④	⑤	⑥		⑧	⑨
18	Arithmetic coding/As a generalized change of radix	①	②	③	④	⑤	⑥	⑦			⑩
18	Code segment unload	①	②	③	④	⑤	⑥	⑦		⑨	⑩
18	Color quantization	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	De Bruijn sequences	①	②	③	④	⑤	⑥	⑦		⑨	⑩
18	Eertree	①	②	③	④	⑤	⑥	⑦		⑨	⑩
18	Find URI in text	①	②	③	④	⑤		⑦		⑨
18	Gauss-Jordan matrix inversion	①	②	③	④	⑤		⑦		⑨	⑩
18	K-d tree	①	②	③	④		⑥	⑦	⑧	⑨	⑩
18	Length of an arc between two angles	①	②	③	④	⑤		⑦	⑧
18	Magnanimous numbers	①	②	③	④	⑤			⑧		⑩
18	Minimum positive multiple in base 10 using only 0 and 1	①	②	③	④	⑤		⑦	⑧		⑩
18	Monads/Writer monad	①	②	③	④	⑤		⑦
18	Names to numbers	①	②	③	④	⑤	⑥	⑦		⑨
18	Perceptron	①	②	③			⑥	⑦		⑨	⑩
18	Print debugging statement	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
18	Remove vowels from a string	①	②	③	④	⑤	⑥		⑧
18	SQL-based authentication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
18	Selective File Copy	①	②	③	④	⑤		⑦		⑨	⑩
18	Sum data type	①	②	③	④	⑤			⑧		⑩
18	Untrusted environment	①	②		④	⑤		⑦	⑧	⑨
18	Vigenère cipher/Cryptanalysis	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
17	Assertions in design by contract	①	②	③	④			⑦		⑨	⑩
17	Bioinformatics/Sequence mutation	①	②	③	④	⑤	⑥		⑧	⑨	⑩
17	Bitcoin/public point to address	①	②	③	④	⑤	⑥		⑧	⑨
17	Compiler/code generator	①	②	③	④	⑤	⑥		⑧		⑩
17	Draw pixel 2	①	②	③	④	⑤		⑦	⑧	⑨
17	EKG sequence convergence	①	②	③	④	⑤	⑥	⑦	⑧		⑩
17	Elementary cellular automaton/Infinite length	①	②	③	④	⑤	⑥	⑦		⑨
17	Index finite lists of positive integers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
17	Just in time processing on a character stream	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
17	Knuth's power tree	①	②	③	④	⑤	⑥	⑦		⑨	⑩
17	Kosaraju	①	②	③	④	⑤	⑥	⑦		⑨	⑩
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	⑨
17	Mertens function	①	②	③	④	⑤			⑧		⑩
17	Montgomery reduction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
17	P-value correction	①	②	③	④	⑤	⑥	⑦	⑧		⑩
17	Percolation/Site percolation	①	②	③	④	⑤	⑥	⑦	⑧	⑨
17	Primes - allocate descendants to their ancestors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
17	Separate the house number from the street name	①	②	③	④	⑤	⑥	⑦		⑨
17	Solve triangle solitare puzzle	①	②	③	④	⑤	⑥	⑦		⑨	⑩
17	Zeckendorf arithmetic	①	②	③	④		⑥	⑦	⑧	⑨	⑩
16	Aspect Oriented Programming	①	②	③	④	⑤	⑥	⑦	⑧		⑩
16	Compiler/syntax analyzer	①	②	③		⑤	⑥		⑧		⑩
16	Compiler/virtual machine interpreter	①	②	③	④	⑤	⑥		⑧
16	Esthetic numbers	①	②	③	④	⑤		⑦	⑧
16	File size distribution	①	②	③	④	⑤	⑥	⑦	⑧	⑨
16	HTTPS/Client-authenticated	①	②	③	④	⑤	⑥	⑦		⑨
16	Imaginary base numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
16	Increasing gaps between consecutive Niven numbers	①	②	③	④	⑤			⑧		⑩
16	Isqrt (integer square root) of X	①	②	③	④
16	Longest common suffix	①	②	③	④	⑤	⑥
16	Most frequent k chars distance	①	②		④	⑤	⑥	⑦		⑨	⑩
16	Möbius function	①	②	③	④	⑤		⑦	⑧		⑩
16	NYSIIS	①	②	③	④	⑤	⑥	⑦		⑨	⑩
16	Particle Swarm Optimization	①	②	③	④	⑤	⑥	⑦		⑨	⑩
16	Polynomial synthetic division	①	②	③	④	⑤	⑥	⑦		⑨	⑩
16	Proof	①	②		④					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		⑨	⑩
15	15 puzzle solver	①	②	③			⑥			⑨
15	Bitmap/Read an image through a pipe	①		③	④		⑥	⑦	⑧	⑨
15	Free polyominoes enumeration	①	②	③			⑥	⑦		⑨	⑩
15	Geometric algebra	①	②	③	④		⑥	⑦			⑩
15	Line circle intersection	①	②	③	④	⑤		⑦	⑧		⑩
15	Matrix Digital Rain	①	②	③	④	⑤	⑥		⑧	⑨
15	Mayan numerals	①	②	③	④	⑤	⑥				⑩
15	Nested templated data	①	②	③	④	⑤	⑥			⑨
15	Nonogram solver	①	②	③		⑤	⑥	⑦		⑨	⑩
15	Percolation/Bond percolation	①	②	③	④	⑤	⑥	⑦	⑧	⑨
15	Percolation/Mean cluster density	①	②	③	④	⑤	⑥	⑦	⑧	⑨
15	Rendezvous	①	②	③	④				⑧	⑨
15	Retrieve and search chat history	①	②	③	④				⑧	⑨
15	Sierpinski arrowhead curve	①	②	③	④	⑤			⑧
15	Snake	①	②	③	④	⑤		⑦	⑧		⑩
15	Suffix tree	①	②	③	④	⑤	⑥	⑦		⑨	⑩
15	Terminal control/Positional read	①	②	③	④		⑥	⑦	⑧	⑨
15	Transportation problem	①	②	③	④			⑦		⑨	⑩
15	Word wheel	①	②	③	④	⑤	⑥		⑧
14	Gradient descent	①	②	③	④	⑤				⑨
14	Matrix chain multiplication	①	②	③	④	⑤		⑦	⑧		⑩
14	Numerical integration/Adaptive Simpson's method	①	②	③	④	⑤	⑥	⑦	⑧		⑩
14	Peaceful chess queen armies	①	②	③	④	⑤	⑥	⑦	⑧		⑩
14	Permutations with some identical elements	①	②	③	④	⑤
14	Twin Prime Conjecture	①	②	③	④	⑤					⑩
14	Vibrating rectangles	①	②	③	④	⑤	⑥		⑧	⑨
13	Bitmap/PPM conversion through a pipe	①		③	④		⑥	⑦	⑧	⑨
13	Compare sorting algorithms' performance	①	②	③			⑥	⑦	⑧
13	Compiler/AST interpreter	①	②	③		⑤	⑥		⑧		⑩
13	Cyclotomic Polynomial	①	②	③	④	⑤	⑥	⑦			⑩
13	Four is the number of letters in the ...	①	②	③	④	⑤	⑥	⑦	⑧		⑩
13	Functional coverage tree	①	②	③	④	⑤	⑥	⑦		⑨
13	Generalised floating point addition	①	②	③	④	⑤		⑦		⑨	⑩
13	Latin Squares in reduced form	①	②	③	④		⑥	⑦			⑩
13	Logistic Curve Fitting in Epidemiology	①	②	③	④	⑤	⑥	⑦	⑧
13	Metallic ratios	①	②	③	④	⑤	⑥	⑦			⑩
13	Rare numbers	①	②	③				⑦			⑩
13	Sequence: nth number with exactly n divisors	①	②	③	④	⑤	⑥	⑦			⑩
13	Sine wave	①	②	③	④	⑤		⑦		⑨
13	Singly-linked list/Element removal	①	②	③	④			⑦	⑧	⑨
13	Tarjan	①	②	③	④	⑤	⑥	⑦		⑨
13	Topological sort/Extracted top item	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
13	XML Validation	①			④	⑤	⑥	⑦	⑧		⑩
12	Banker's algorithm	①	②	③	④	⑤		⑦	⑧	⑨
12	Canonicalize CIDR	①	②	③	④	⑤	⑥		⑧
12	Chernick's Carmichael numbers	①	②	③	④	⑤			⑧		⑩
12	Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N)	①	②	③	④		⑥	⑦		⑨
12	Deconvolution/2D+	①	②	③	④	⑤	⑥		⑧
12	Jaro-Winkler Distance	①	②	③	④	⑤	⑥
12	Nimber arithmetic	①	②	③	④				⑧		⑩
12	OpenWebNet Password	①	②	③	④	⑤	⑥	⑦		⑨
12	Pisano period	①	②	③	④	⑤	⑥				⑩
12	Ramanujan's constant	①	②	③	④	⑤	⑥				⑩
12	Safe mode	①	②		④	⑤
11	ASCII art diagram converter	①	②	③	④	⑤				⑨	⑩
11	Abelian sandpile model/Identity	①	②	③	④		⑥
11	Canny edge detector	①	②	③			⑥		⑧
11	Factorial base numbers indexing permutations of a collection	①	②	③	④	⑤	⑥
11	Interactive Help	①	②	③	④	⑤				⑨
11	Sierpinski curve	①	②	③	④	⑤					⑩
11	Sierpinski square curve	①	②	③	④	⑤					⑩
11	Simulated annealing	①	②	③	④	⑤				⑨
11	Sorting algorithms/Tree sort on a linked list	①	②	③				⑦	⑧	⑨	⑩
11	Tetris	①	②	③			⑥				⑩
11	Text Completion	①	②	③	④	⑤					⑩
11	UPC	①	②	③	④	⑤
11	VList	①	②		④			⑦	⑧	⑨
10	Audio frequency generator	①	②	③		⑤
10	Execute CopyPasta Language	①	②	③	④	⑤	⑥				⑩
10	External sort	①	②	③	④	⑤	⑥
10	Geohash	①	②	③	④	⑤	⑥
10	Greed	①	②	③	④			⑦			⑩
10	Long literals, with continuations	①	②	③	④
10	Penrose tiling	①	②	③	④	⑤		⑦		⑨	⑩
10	Print itself	①	②	③	④
10	Pseudo-random numbers/PCG32	①	②	③	④		⑥
10	Pseudo-random numbers/Xorshift star	①	②	③	④		⑥
10	Railway circuit	①	②	③	④			⑦		⑨	⑩
10	Resistance Calculator	①	②	③	④	⑤	⑥
10	Run as a daemon or service	①			④		⑥		⑧	⑨
10	Spoof game	①	②	③	④	⑤		⑦	⑧
10	Time-based One-time Password Algorithm	①		③	④	⑤				⑨
10	Using a Speech engine to highlight words	①	②		④
9	Biorhythms	①	②	③	④	⑤
9	Catmull–Clark subdivision surface	①		③			⑥		⑧
9	Colour pinstripe/Printer	①	②	③	④		⑥			⑨
9	Combinations with repetitions/Square Digit Chain	①	②	③	④	⑤		⑦
9	Curve that touches three points	①	②	③	④	⑤
9	Fibonacci matrix-exponentiation	①	②	③	④	⑤					⑩
9	French Republican calendar	①	②	③	④	⑤		⑦
9	Getting the number of decimals	①	②	③	④	⑤	⑥
9	Launch rocket with countdown and acceleration in stdout	①	②	③	④	⑤				⑨
9	Morpion solitaire	①	②	③					⑧	⑨	⑩
9	One-time pad	①	②	③	④	⑤		⑦		⑨	⑩
9	Parse EBNF	①	②		④	⑤
9	Pentomino tiling	①	②	③				⑦		⑨	⑩
9	Pinstripe/Printer	①	②	③	④					⑨
9	Pseudo-random numbers/Splitmix64	①	②		④		⑥		⑧
9	Starting a web browser	①	②	③	④	⑤				⑨
9	Suffixation of decimal numbers	①	②	③	④	⑤	⑥
9	Three word location	①	②	③	④	⑤			⑧
9	Unit testing	①	②	③	④					⑨
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				⑩
8	Numerical and alphabetical suffixes	①	②	③	④		⑥
8	Powerful numbers	①	②	③	④	⑤					⑩
8	Quoting constructs	①	②	③	④
8	Resistance Network Calculator	①	②	③	④	⑤	⑥
8	Tree datastructures	①	②	③	④	⑤	⑥
8	User defined pipe and redirection operators	①	②		④	⑤				⑨
8	XXXX redacted	①	②	③	④	⑤
7	16 Puzzle Game	①	②	③		⑤
7	Compiler/Verifying Syntax	①	②	③	④	⑤			⑧
7	Display an outline as a nested table	①	②	③	④	⑤
7	Elliptic Curve Digital Signature Algorithm	①	②	③	④	⑤			⑧
7	Fibonacci heap	①	②	③	④		⑥	⑦
7	Graph colouring	①	②	③	④		⑥			⑨
7	IPC via named pipe	①							⑧	⑨
7	Multidimensional Newton-Raphson method	①	②	③	④			⑦
7	Non-transitive dice	①	②	③			⑥
7	Pseudo-random numbers/Combined recursive generator MRG32k3a	①	②	③	④		⑥
7	Robots	①	②	③	④			⑦			⑩
7	Rosetta Code/Rank languages by number of users	①	②		④	⑤				⑨
7	Sort an outline at every level	①	②	③			⑥
6	Brace expansion using ranges	①	②	③	④
6	Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2)	①	②		④			⑦
6	Mayan calendar	①	②	③	④	⑤
6	OpenGL Pixel Shader	①						⑦	⑧	⑨
6	OpenGL/Utah Teapot	①	②					⑦	⑧
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					⑨
6	URL shortener	①		③	④
5	Addition-chain exponentiation	①	②						⑧	⑨
5	Audio Overlap Loop	①		③
5	Black Box	①	②	③
5	Boids	①	②	③					⑧		⑩
5	Hexapawn	①	②	③
5	Raster bars	①	②	③	④
5	Remote agent/Agent interface	①		③					⑧
5	Remote agent/Agent logic	①		③					⑧
5	Remote agent/Simulation	①		③					⑧
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	Waveform analysis/Doh ray me	①	②	③	④	⑤
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	Pseudorandom Number Generator Image			③	④	⑤					⑩
4	Tamagotchi emulator	①
4	Unicode polynomial equation	①	②	③
4	Using the Meetup.com API	①					⑥				⑩
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	Ukkonen’s Suffix Tree Construction	①	②	③
3	Vidir		②		④
3	Waveform analysis/Top and tail	①	②	③
2	15 Puzzle Game in 3D	①
2	CLI-based maze-game		②
2	IRC gateway	①
1	Blackjack strategy	①
1	Create DWM statusbar
1	WalledMonument