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 2020-10-11T23:21:43Z :: Tasks: 1071 :: Draft Tasks:208 :: Total Tasks: 1279 :: Total Examples: 70420

Count	Task	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
471	Hello world/Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
314	99 Bottles of Beer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
311	100 doors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
304	FizzBuzz	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
281	Factorial	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
281	Fibonacci sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
270	Comments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
258	A+B	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
253	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
219	Arrays	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
218	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
204	Loops/For	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
199	Conditional structures	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
195	Arithmetic/Integer	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
186	Greatest common divisor	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
185	Array concatenation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
184	Averages/Arithmetic mean	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
184	Integer comparison	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	Boolean values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
182	Increment a numerical string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
181	Even or odd	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
180	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
165	Character codes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
163	String concatenation	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	Loops/Do-while	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
160	Array length	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	Loops/Foreach	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
160	Sieve of Eratosthenes	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	Binary digits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
158	Loops/Break	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
157	Loops/N plus one half	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
157	String length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
155	Integer sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
155	String case	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	Palindrome detection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
153	Tokenize a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
153	Towers of Hanoi	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	Logical operations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
151	Dot product	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
151	Empty 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	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
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	Execute a system command	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	Quine	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
142	Guess the number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
141	Caesar cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
140	Higher-order functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
140	User input/Text	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
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	Command-line arguments	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	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	Sleep	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
129	Loops/Continue	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
127	Generate lower case ASCII alphabet	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
126	Pascal's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
125	Date format	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
124	Least common multiple	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
124	Zero to the zero power	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Binary search	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	Compound data type	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	Function composition	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
117	ABC Problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
117	Ethiopian multiplication	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	File size	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	N-queens problem	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	Mandelbrot set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	Search a list	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
113	Case-sensitivity of identifiers	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
113	Guess the number/With feedback	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
113	Multiplication tables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Averages/Median	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Hostname	①	②	③	④	⑤	⑥	⑦		⑨	⑩
112	Input loop	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Matrix multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Real constants and functions	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	Environment variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Matrix transposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Random numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Anagrams	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Babbage problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Identity matrix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Perfect 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	Haversine formula	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
109	Pick random element	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
109	String matching	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Accumulator factory	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Arithmetic/Complex	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	Return multiple values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
107	Align columns	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
107	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	Strip a set of characters from a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Temperature conversion	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	Evaluate binomial coefficients	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	Substring/Top and tail	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	Anonymous recursion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Combinations	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	Strip whitespace from a string/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	Reverse words in a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Sorting algorithms/Merge sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	Prime decomposition	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/Selection sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Comma quibbling	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
96	Bulls and cows	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
96	Ordered words	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	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
93	Vector products	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
91	Execute Brain****	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	Sequence of non-squares	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	One-dimensional cellular automata	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
88	Sort using a custom comparator	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
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	Hamming numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	String comparison	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Dragon curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Forward difference	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Harshad or Niven series	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Monty Hall problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Sorting algorithms/Bogosort	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	Josephus 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	The Twelve Days of Christmas	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	Sort an array of composite structures	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	Hello world/Newbie	①	②	③	④	⑤	⑥	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	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	Queue/Usage	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Catamorphism	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	Non-decimal radices/Convert	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Number reversal game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Read a specific line from a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	SEDOLs	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Walk a directory/Recursively	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Count in factors	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	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	URL decoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Web scraping	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Bitmap	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 the coins	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Roots of unity	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	XML/Input	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	Compare a list of strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Knapsack problem/0-1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Playing cards	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Show the epoch	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	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	Order two numerical lists	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Proper divisors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Pythagorean triples	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
75	Top rank per group	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	URL encoding	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	Word wrap	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	Long multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Man or boy test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Non-decimal radices/Output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
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
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	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	Multiple distinct objects	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	Bitmap/Bresenham's line algorithm	①	②	③	④	⑤	⑥		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	Read a configuration file	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	AKS test for primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Anagrams/Deranged anagrams	①	②	③	④	⑤	⑥	⑦	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	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	Convert seconds to compound duration	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Guess the number/With feedback (player)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Horizontal sundial calculations	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
68	Write float arrays to a text file	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	Euler's sum of powers conjecture	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Fork	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	Numerical integration	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	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	Combinations with repetitions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Constrained random points on a circle	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	Munchausen numbers	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	Closest-pair problem	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	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	Sort stability	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Variable size/Get	①	②	③	④	⑤	⑥	⑦	⑧	⑨
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	Show Ascii table	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Text processing/Max licenses in use	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	Remove lines from a file	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	Special variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Strip control codes and extended characters from a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Undefined values	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	Cholesky decomposition	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	HTTPS	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Memory allocation	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	One of n lines in a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Priority queue	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	Write language name in 3D ASCII	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Chinese remainder theorem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	General FizzBuzz	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Pernicious numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Rep-string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Arithmetic evaluation	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	Factors of a Mersenne number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Modular exponentiation	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	Runge-Kutta method	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
60	Test a function	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	Dinesman's multiple-dwelling problem	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	Get system command output	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	Non-decimal radices/Input	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	User input/Graphical	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Animate a pendulum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Mouse position	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	Semiprime	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
58	Unicode strings	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	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	Knapsack problem/Continuous	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Knapsack problem/Unbounded	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	LZW compression	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	Sorting algorithms/Bead sort	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	Compile-time calculation	①	②	③	④	⑤		⑦	⑧	⑨
56	Deal cards for FreeCell	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	Knight's tour	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Sort three variables	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	Two Sum	①	②	③	④	⑤	⑥	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	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	Extreme floating point values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Forest fire	①	②	③	④	⑤	⑥		⑧	⑨	⑩
55	I before E except after C	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	Scope modifiers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Singleton	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	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	Doubly-linked list/Element definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Integer overflow	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Leonardo numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Multisplit	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Munching squares	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	Sierpinski triangle/Graphical	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	Matrix-exponentiation operator	①	②	③	④	⑤	⑥	⑦	⑧	⑨
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	Synchronous concurrency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Terminal control/Cursor positioning	①	②	③	④	⑤	⑥	⑦		⑨
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	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	Subleq	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
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	Bernoulli numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Mad Libs	①	②	③	④	⑤	⑥	⑦		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	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	Cartesian product of two or more lists	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Chinese zodiac	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	Draw a pixel	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	First-class functions/Use numbers analogously	①	②	③	④	⑤	⑥	⑦		⑨
50	Heronian triangles	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Keyboard input/Keypress check	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Ludic numbers	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	Respond to an unknown method call	①	②	③	④	⑤	⑥	⑦		⑨
50	Terminal control/Coloured text	①	②	③	④	⑤	⑥	⑦	⑧	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	Fractran	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	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	Archimedean spiral	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	Damm algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Dijkstra's algorithm	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	Find the intersection of two lines	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
48	Tokenize a string with escaping	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	100 prisoners	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Abundant odd numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Colour bars/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	DNS query	①	②	③	④	⑤		⑦		⑨
47	Doubly-linked list/Element insertion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Doubly-linked list/Traversal	①	②	③	④		⑥	⑦	⑧	⑨	⑩
47	Echo server	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Extensible prime generator	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	Move-to-front algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Polymorphic copy	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	Shoelace formula for polygonal area	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Vector	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	Egyptian division	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	Holidays related to Easter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Jaro distance	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	Make directory path	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Metaprogramming	①	②	③	④	⑤	⑥	⑦	⑧	⑨
46	Search a list of records	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	Strip block comments	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	Bitmap/Flood fill	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	Image noise	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	Pig the dice game	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
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	Chaos game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Determinant and permanent	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	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	Active object	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	Determine if a string has all the same characters	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	Long year?	①	②	③	④	⑤	⑥	⑦			⑩
43	Longest Common Substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Narcissist	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	OpenGL	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	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	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
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	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	Terminal control/Dimensions	①	②	③	④	⑤	⑥	⑦	⑧	⑨
41	Twelve statements	①	②	③	④	⑤	⑥	⑦		⑨	⑩
41	Variable size/Set	①	②	③	④	⑤	⑥	⑦	⑧	⑨
40	Aliquot sequence classifications	①	②	③	④	⑤	⑥	⑦	⑧	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	Hilbert curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Kernighans large earthquake problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Knapsack problem/Bounded	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Pascal's triangle/Puzzle	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	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	Text between	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Van Eck sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Voronoi diagram	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	Color of a screen pixel	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Combinations and permutations	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	Inverted index	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Nim Game	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	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	Deepcopy	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	Prime conspiracy	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	Taxicab numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Variable-length quantity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Associative array/Merging	①	②	③	④	⑤	⑥	⑦		⑨	⑩
37	Brace expansion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Chowla numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Colour pinstripe/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Currency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Determine if a string is collapsible	①	②	③	④	⑤	⑥	⑦	⑧		⑩
37	Flipping bits game	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	Magic squares of doubly even order	①	②	③	④	⑤	⑥	⑦	⑧		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	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	Sailors, coconuts and a monkey problem	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	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	Abbreviations, automatic	①	②	③	④	⑤	⑥	⑦	⑧		⑩
36	Bell numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
36	Bitmap/Midpoint circle algorithm	①	②	③	④		⑥	⑦		⑨
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	MAC Vendor Lookup	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Magic 8-Ball	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Object serialization	①	②	③	④	⑤	⑥	⑦		⑨	⑩
36	Order disjoint list items	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	Scope/Function names and labels	①	②	③	④	⑤	⑥	⑦	⑧	⑨
36	Square but not cube	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	Bitwise IO	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Cramer's rule	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Days between dates	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	Floyd-Warshall algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Gapful numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
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	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	Permutations with repetitions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Pinstripe/Display	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	Bitmap/Bézier curves/Cubic	①	②	③	④		⑥	⑦	⑧	⑨
34	Cuban primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	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	ISBN13 check digit	①	②	③	④	⑤	⑥	⑦	⑧	⑨
34	Largest number divisible by its digits	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	Penney's game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Read a file character by character/UTF8	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	Display a linear combination	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	Parametrized SQL statement	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	RIPEMD-160	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Solve the no connection puzzle	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	Topic variable	①	②	③	④	⑤	⑥	⑦		⑨
33	Totient function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Truth table	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	21 Game	①	②	③	④	⑤	⑥		⑧	⑨	⑩
32	Bitcoin/address validation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Check output device is a terminal	①	②	③	④	⑤	⑥	⑦	⑧	⑨
32	Convex hull	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
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	Recaman's sequence	①	②	③	④	⑤	⑥	⑦	⑧		⑩
32	Rosetta Code/Find bare lang tags	①	②	③	④	⑤			⑧	⑨
32	The Name Game	①	②	③	④	⑤	⑥	⑦	⑧		⑩
32	URL parser	①	②	③	④	⑤	⑥	⑦		⑨	⑩
31	Abbreviations, easy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Abbreviations, simple	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Approximate Equality	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Bitmap/Bézier curves/Quadratic	①	②	③	④		⑥	⑦	⑧	⑨
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	Determine if a string is squeezable	①	②	③	④	⑤	⑥	⑦	⑧		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	Multiplicative order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Negative base numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Numeric error propagation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Pattern matching	①	②	③	④	⑤		⑦		⑨
31	RSA code	①	②	③	④	⑤	⑥	⑦	⑧	⑨	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	Terminal control/Cursor movement	①	②	③	④	⑤	⑥	⑦	⑧	⑨
31	Write to Windows event log	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
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	Determine if two triangles overlap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	First class environments	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	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	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	Cheryl's Birthday	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Cycle detection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Factorions	①	②	③	④	⑤	⑥		⑧	⑨	⑩
29	Faulhaber's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Implicit type conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Koch curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨
29	Multi-dimensional array	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	Bacon cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Chaocipher	①	②	③	④	⑤	⑥	⑦	⑧		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	Church Numerals	①	②	③	④	⑤	⑥			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	Eban numbers	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	FTP	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Faulhaber's formula	①	②	③	④	⑤		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	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	Modular arithmetic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Old Russian measure of length	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	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	Four is magic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Honeycombs	①	②	③		⑤	⑥	⑦	⑧	⑨	⑩
27	Jacobi symbol	①	②	③	④	⑤	⑥	⑦	⑧		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	Burrows–Wheeler transform	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Chebyshev coefficients	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	Diversity prediction theorem	①	②	③	④	⑤	⑥	⑦	⑧		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	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	Polyspiral	①	②	③	④		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
26	Thiele's interpolation formula	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Word break problem	①	②	③	④	⑤	⑥	⑦		⑨	⑩
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	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	Cut a rectangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Fairshare between two and more	①	②	③	④	⑤	⑥	⑦	⑧		⑩
25	Fraction reduction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	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	N-smooth numbers	①	②	③	④	⑤	⑥	⑦	⑧		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	Weird numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Yellowstone sequence	①	②	③	④	⑤	⑥	⑦		⑨	⑩
24	Draw a rotating cube	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	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	Peano curve	①	②	③	④	⑤	⑥		⑧	⑨	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	Range consolidation	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	A* search algorithm	①	②	③	④		⑥	⑦	⑧	⑨	⑩
23	Angles (geometric), normalization and conversion	①	②	③	④	⑤	⑥		⑧	⑨	⑩
23	Color wheel	①	②	③	④	⑤	⑥	⑦		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	Magic squares of singly even order	①	②	③	④	⑤	⑥	⑦	⑧		⑩
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	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	Remove vowels from a string	①	②	③	④	⑤	⑥		⑧
23	SOAP	①	②	③	④	⑤	⑥	⑦	⑧
23	Stirling numbers of the second kind	①	②	③	④	⑤	⑥	⑦	⑧		⑩
23	Stream Merge	①	②	③	④	⑤		⑦	⑧	⑨	⑩
23	Successive prime differences	①	②	③	④	⑤	⑥	⑦	⑧		⑩
23	Teacup rim text	①	②	③	④	⑤	⑥		⑧		⑩
23	Unprimeable numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Zumkeller numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	AudioAlarm	①	②	③			⑥	⑦		⑨	⑩
22	Base58Check encoding	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Bioinformatics/base count	①	②	③	④	⑤	⑥		⑧	⑨	⑩
22	Cipolla's algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Create an object/Native demonstration	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	Length of an arc between two angles	①	②	③	④	⑤	⑥	⑦	⑧
22	Linux CPU utilization	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Markov chain text generator	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Minimum positive multiple in base 10 using only 0 and 1	①	②	③	④	⑤		⑦	⑧		⑩
22	Nonoblock	①	②	③	④	⑤	⑥	⑦		⑨	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	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	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	Abelian sandpile model	①	②	③	④	⑤	⑥		⑧		⑩
21	Active Directory/Search for a user	①	②		④		⑥		⑧		⑩
21	Circular primes	①	②	③	④	⑤	⑥	⑦	⑧		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	Lucky and even lucky numbers	①	②	③	④	⑤	⑥	⑦			⑩
21	Mind boggling card trick	①	②	③	④	⑤	⑥	⑦
21	Monads/Maybe monad	①	②	③	④			⑦		⑨
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	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		⑨	⑩
20	Data Encryption Standard	①	②	③	④	⑤	⑥	⑦	⑧		⑩
20	De Bruijn sequences	①	②	③	④	⑤	⑥	⑦		⑨	⑩
20	Elliptic curve arithmetic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
20	Find duplicate files	①	②	③	④	⑤	⑥			⑨	⑩
20	Magnanimous numbers	①	②	③	④	⑤			⑧		⑩
20	Mastermind	①	②	③	④	⑤	⑥	⑦
20	Median filter	①	②	③	④	⑤	⑥	⑦	⑧	⑨
20	Native shebang	①	②	③	④	⑤	⑥		⑧	⑨
20	Next highest int from digits	①	②	③	④	⑤	⑥	⑦	⑧		⑩
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	Primality by Wilson's theorem	①	②	③	④	⑤	⑥		⑧		⑩
20	Random Latin Squares	①	②	③	④	⑤	⑥	⑦	⑧		⑩
20	Reflection/Get source	①	②	③	④		⑥	⑦			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	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	Monads/List monad	①	②	③	④	⑤		⑦		⑨
19	N-body problem	①	②	③	④	⑤	⑥	⑦	⑧		⑩
19	Pierpont primes	①	②	③	④	⑤	⑥	⑦	⑧		⑩
19	Readline interface	①	②	③	④	⑤	⑥	⑦	⑧	⑨	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	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	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	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	Longest common suffix	①	②	③	④	⑤	⑥
17	Mertens function	①	②	③	④	⑤			⑧		⑩
17	Metallic ratios	①	②	③	④	⑤	⑥	⑦			⑩
17	Montgomery reduction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
17	Möbius function	①	②	③	④	⑤		⑦	⑧		⑩
17	Numbers With Equal Rises and Falls	①	②	③	④		⑥		⑧
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	Proof	①	②		④					⑨
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	Vogel's approximation method	①	②	③	④		⑥	⑦	⑧	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	Most frequent k chars distance	①	②		④	⑤	⑥	⑦		⑨	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	Self-hosting compiler	①	②		④		⑥	⑦
16	Sierpinski arrowhead curve	①	②	③	④	⑤			⑧
16	Terminal control/Positional read	①	②	③	④	⑤	⑥	⑦	⑧	⑨
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	Snake	①	②	③	④	⑤		⑦	⑧		⑩
15	Suffix tree	①	②	③	④	⑤	⑥	⑦		⑨	⑩
15	Transportation problem	①	②	③	④			⑦		⑨	⑩
15	UPC	①	②	③	④	⑤		⑦	⑧
15	Word wheel	①	②	③	④	⑤	⑥		⑧
14	Gradient descent	①	②	③	④	⑤				⑨
14	Latin Squares in reduced form	①	②	③	④		⑥	⑦			⑩
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	Singly-linked list/Element removal	①	②	③	④		⑥	⑦	⑧	⑨
14	Tarjan	①	②	③	④	⑤	⑥	⑦		⑨
14	Twin Prime Conjecture	①	②	③	④	⑤					⑩
14	Vibrating rectangles	①	②	③	④	⑤	⑥		⑧	⑨
14	XML Validation	①		③	④	⑤	⑥	⑦	⑧		⑩
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	Logistic Curve Fitting in Epidemiology	①	②	③	④	⑤	⑥	⑦	⑧
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	Topological sort/Extracted top item	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
12	ASCII art diagram converter	①	②	③	④	⑤				⑨	⑩
12	Abelian sandpile model/Identity	①	②	③	④		⑥
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	Numbers with prime digits whose sum is 13	①	②	③	④
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
12	Sierpinski curve	①	②	③	④	⑤					⑩
12	Simulated annealing	①	②	③	④	⑤				⑨
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	Geohash	①	②	③	④	⑤	⑥
11	Interactive Help	①	②	③	④	⑤				⑨
11	Print itself	①	②	③	④	⑤
11	Pseudo-random numbers/PCG32	①	②	③	④		⑥
11	Pseudo-random numbers/Splitmix64	①	②	③	④		⑥		⑧
11	Sierpinski square curve	①	②	③	④	⑤					⑩
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	VList	①	②		④			⑦	⑧	⑨
10	Audio frequency generator	①	②	③		⑤
10	Biorhythms	①	②	③	④	⑤
10	Execute CopyPasta Language	①	②	③	④	⑤	⑥				⑩
10	External sort	①	②	③	④	⑤	⑥
10	Getting the number of decimals	①	②	③	④	⑤	⑥
10	Greed	①	②	③	④			⑦			⑩
10	Long literals, with continuations	①	②	③	④
10	Longest palindromic substrings	①	②	③	④		⑥
10	Penrose tiling	①	②	③	④	⑤		⑦		⑨	⑩
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	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	Faces from a mesh	①	②	③	④	⑤	⑥
9	Fibonacci matrix-exponentiation	①	②	③	④	⑤					⑩
9	French Republican calendar	①	②	③	④	⑤		⑦
9	IPC via named pipe	①			④	⑤			⑧	⑨
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	Self numbers	①	②	③					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
9	XXXX redacted	①	②	③	④	⑤
8	Checksumcolor	①	②	③	④	⑤
8	Minimal steps down to 1	①	②	③	④		⑥				⑩
8	Non-transitive dice	①	②	③			⑥
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
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	Multidimensional Newton-Raphson method	①	②	③	④			⑦
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	Pseudorandom Number Generator Image	①		③	④	⑤					⑩
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	Doubly-linked list/Element removal		②	③	④
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	Strassen's algorithm	①	②	③
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