Rosetta Code/Count examples/Full list

Full output for the Rosetta Code/Count examples#Perl_6 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 Perl 6
④ Julia
⑤ Python
⑥ Perl
⑦ Kotlin
⑧ Racket
⑨ Zkl
⑩ C

As of 2019-11-24T22:36:47Z :: Tasks: 980 :: Draft Tasks:228 :: Total Tasks: 1208 :: Total Examples: 64795

Count	Task	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
440	Hello world/Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
300	99 Bottles of Beer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
292	100 doors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
290	FizzBuzz	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
268	Fibonacci sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
266	Factorial	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
258	Comments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
243	A+B	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
235	Empty program	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
223	Function definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
213	Loops/Infinite	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
209	Loops/While	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
208	Arrays	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
208	Reverse a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
207	Ackermann function	①	②	③	④	⑤	⑥	⑦	⑧		⑩
196	Loops/For	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
188	Conditional structures	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
186	Greatest element of a list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
185	Arithmetic/Integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
179	Greatest common divisor	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
178	Averages/Arithmetic mean	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
177	Array concatenation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
177	Integer comparison	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
174	Repeat a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
172	Boolean values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
170	Increment a numerical string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
170	Loops/Downward for	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
168	Even or odd	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
166	Loops/For with a specified step	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
165	Hello world/Graphical	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
164	Copy a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
158	Apply a callback to an array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
156	Loops/Foreach	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
155	String length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
155	Sum and product of an array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
154	Character codes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
154	Hello world/Newline omission	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
153	String concatenation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
152	Loops/Do-while	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
152	Sieve of Eratosthenes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
151	Binary digits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
150	Palindrome detection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
150	Sum of a series	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
150	Towers of Hanoi	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
149	Loops/Break	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
149	Loops/N plus one half	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
148	String case	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
147	Array length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
147	Integer sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
147	Logical operations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
146	Generic swap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
146	Leap year	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
144	Filter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
144	Rot-13	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
144	Sum of squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
143	Dot product	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
143	Hailstone sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
143	Tokenize a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
142	Empty string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
141	Execute a system command	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
139	Associative array/Creation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
138	Sort an integer array	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
136	Sorting algorithms/Bubble sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
134	Caesar cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
134	Determine if a string is numeric	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
134	Factors of an integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
134	User input/Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
133	File input/output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
133	Guess the number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
133	Higher-order functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
133	Quine	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
131	Command-line arguments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
131	Remove duplicate elements	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
130	Hello world/Standard error	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
130	Read entire file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
130	Roman numerals/Encode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
128	Day of the week	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
128	System time	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
127	Bitwise operations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
127	Create a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
127	Primality by trial division	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
126	Sorting algorithms/Quicksort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
124	Stack	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Check that file exists	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Literals/String	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Loop over multiple arrays simultaneously	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Loops/Continue	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Luhn test of credit card numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
123	Substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
122	Pascal's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
122	Sleep	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
121	Mutual recursion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
120	Include a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨
119	Happy numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
119	Least common multiple	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
119	Literals/Integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
118	Detect division by zero	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
117	Flatten a list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
116	Balanced brackets	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
116	Compound data type	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
116	Date format	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
116	Variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
115	Generate lower case ASCII alphabet	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Associative array/Iteration	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Binary search	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	File size	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Loops/Nested	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
114	Program termination	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
113	Knuth shuffle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Classes	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Formatted numeric output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Function composition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
112	Null object	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	ABC Problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Mandelbrot set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Read a file line by line	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Real constants and functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
111	Search a list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Averages/Root mean square	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Ethiopian multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
110	Hostname	①	②	③	④	⑤	⑥	⑦	⑧	⑨
110	N-queens problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
109	Averages/Median	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
109	Delete a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
109	Guess the number/With feedback	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
109	Zero to the zero power	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Case-sensitivity of identifiers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Hash from two arrays	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Input loop	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Matrix multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Matrix transposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
108	Rename a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
107	Count in octal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
107	Multiplication tables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Count occurrences of a substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Environment variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	HTTP	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Identity matrix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Pick random element	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	Sorting algorithms/Insertion sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
106	String matching	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
105	Random numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
105	Return multiple values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
105	Roman numerals/Decode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Accumulator factory	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Arithmetic/Complex	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Babbage problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Haversine formula	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Pangram checker	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
104	Perfect numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Anagrams	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Assertions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
103	Find limit of recursion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
102	Align columns	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
102	Averages/Pythagorean means	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Catalan numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Horner's rule for polynomial evaluation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
101	Temperature conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Exceptions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Infinity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Program name	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
100	Variadic function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Arithmetic-geometric mean	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Conway's Game of Life	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Evaluate binomial coefficients	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
99	Run-length encoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
98	Regular expressions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Combinations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Strip a set of characters from a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Strip whitespace from a string/Top and tail	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Substring/Top and tail	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Trigonometric functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
97	Zig-zag matrix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
96	Letter frequency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
96	Permutations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	24 game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	Sorting algorithms/Selection sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
95	String interpolation (included)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	Anonymous recursion	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	Prime decomposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
94	Short-circuit evaluation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Comma quibbling	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Levenshtein distance	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Queue/Definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Reverse words in a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
93	Shell one-liner	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Collections	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Enumerations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Nth root	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Range extraction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	Sorting algorithms/Merge sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
92	String append	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
91	Bulls and cows	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
91	Create a two-dimensional array at runtime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
91	Look-and-say sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
91	Ordered words	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
91	Power set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	First-class functions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	Middle three digits	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	Range expansion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
90	Sierpinski triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
89	Arbitrary-precision integers (included)	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	Y combinator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
88	Create an HTML table	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
88	Exponentiation operator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
88	Interactive programming	①		③	④	⑤	⑥	⑦	⑧	⑨
88	Random number generator (included)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
88	Sequence of non-squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
88	Walk a directory/Non-recursively	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Averages/Mode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Call a function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Evolutionary algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	MD5	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	String prepend	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Sum multiples of 3 and 5	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Time a function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
87	Vector products	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	Cumulative standard deviation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	Inheritance/Single	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
86	Sort using a custom comparator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Five weekends	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
85	Sorting algorithms/Gnome sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
84	Langton's ant	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	Sum digits of an integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Averages/Simple moving average	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Digital root	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Execute Brain****	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Forward difference	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Sierpinski carpet	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Sorting algorithms/Cocktail sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
83	Window creation	①	②	③	④	⑤	⑥	⑦	⑧		⑩
82	Entropy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Hamming numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
82	Symmetric difference	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Abstract type	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Abundant, deficient and perfect number classifications	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	CSV to HTML translation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Dragon curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	File modification time	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Greatest subsequential sum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	Harshad or Niven series	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	JSON	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
81	N'th	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	CSV data manipulation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
80	The Twelve Days of Christmas	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Josephus problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Menu	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Price fraction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
79	Sorting algorithms/Bogosort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Hello world/Line printer	①	②	③	④	⑤	⑥	⑦	⑧		⑩
78	Literals/Floating point	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Map range	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Queue/Usage	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Simple windowed application	①	②	③	④	⑤	⑥	⑦	⑧		⑩
78	Tree traversal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
78	Web scraping	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Box the compass	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Catamorphism	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Closures/Value capture	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Gray code	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Introspection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Last Friday of each month	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Monte Carlo methods	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	SEDOLs	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	String comparison	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
77	Walk a directory/Recursively	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Amicable pairs	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Count in factors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Floyd's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Non-decimal radices/Convert	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Number names	①	②	③	④		⑥	⑦	⑧	⑨	⑩
76	Set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	Sorting algorithms/Heapsort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
76	XML/Input	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Number reversal game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Read a specific line from a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Singly-linked list/Traversal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Sort an array of composite structures	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	Spiral matrix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
75	URL decoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Pythagorean triples	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Show the epoch	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
74	Terminal control/Ringing the terminal bell	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
73	Bitmap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Count the coins	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Dynamic variable names	①	②	③	④	⑤	⑥	⑦	⑧	⑨
73	Find common directory path	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Hofstadter Q sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Knapsack problem/0-1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Playing cards	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Sockets	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
73	Terminal control/Clear the screen	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Call an object method	①		③	④	⑤	⑥	⑦	⑧	⑨
72	Concurrent computing	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Sorting algorithms/Shell sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	Strip comments from a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
72	URL encoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Almost prime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Date manipulation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Fibonacci n-step number sequences	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Keyboard input/Obtain a Y or N response	①	②	③	④	⑤	⑥	⑦	⑧		⑩
71	Lucas-Lehmer test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Man or boy test	①	②	③	④	⑤	⑥	⑦	⑧		⑩
71	Order two numerical lists	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Proper divisors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Roots of unity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
71	Soundex	①	②	③	④	⑤	⑥	⑦	⑧		⑩
70	Address of a variable	①	②	③	④	⑤	⑥	⑦	⑧
70	CRC-32	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Compare a list of strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Hello world/Newbie	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Kaprekar numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Linear congruential generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
70	Special characters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Averages/Mean angle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Bitmap/Bresenham's line algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Exceptions/Catch an exception thrown in a nested call	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Find the missing permutation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Hello world/Web server	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Jensen's Device	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	List comprehensions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Long multiplication	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Multifactorial	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Take notes on the command line	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
69	Unicode variable names	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Empty directory	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Equilibrium index	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Here document	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Non-decimal radices/Output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Pi	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Polymorphism	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Rock-paper-scissors	①	②	③	④	⑤	⑥	⑦	⑧		⑩
68	Singly-linked list/Element definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Sorting algorithms/Counting sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
68	Word wrap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Calculating the value of e	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Calendar	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Execute HQ9+	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Find the last Sunday of each month	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Flow-control structures	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Gamma function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Multiple distinct objects	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Parsing/RPN calculator algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Sorting algorithms/Comb sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Stair-climbing puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Sudoku	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Vigenère cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
67	Write float arrays to a text file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Anagrams/Deranged anagrams	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Animation	①	②	③	④	⑤	⑥	⑦	⑧		⑩
66	Convert seconds to compound duration	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	IBAN	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Longest common subsequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Operator precedence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Quaternion type	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Semordnilap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Sorting algorithms/Stooge sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
66	Trabb Pardo–Knuth algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Enforced immutability	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Four bit adder	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Guess the number/With feedback (player)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Modular inverse	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
65	Read a configuration file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Call a foreign-language function	①	②	③	④	⑤	⑥	⑦	⑧	⑨
64	Catalan numbers/Pascal's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Closest-pair problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Currying	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Magic squares of odd order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Maze generation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Named parameters	①	②	③	④	⑤	⑥	⑦	⑧		⑩
64	Numerical integration	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Phrase reversals	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Sort disjoint sublist	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
64	Write entire file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	AKS test for primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Euler method	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Fork	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Largest int from concatenated ints	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Munchausen numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Repeat	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Runtime evaluation	①		③	④	⑤	⑥	⑦	⑧	⑨
63	Self-describing numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
63	Variable size/Get	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Arithmetic/Rational	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	HTTPS	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Horizontal sundial calculations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	SHA-1	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Sort stability	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Split a character string based on change of character	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	Van der Corput sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
62	Zeckendorf number representation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Benford's law	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Combinations with repetitions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Constrained random points on a circle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Draw a sphere	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Euler's sum of powers conjecture	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Morse code	①	②	③	④	⑤	⑥	⑦	⑧		⑩
61	One of n lines in a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Roots of a function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	SHA-256	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	Special variables	①	②	③	④	⑤	⑥	⑦	⑧		⑩
61	Strip control codes and extended characters from a string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
61	XML/Output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Extend your language	①	②	③	④	⑤	⑥	⑦	⑧
60	Hofstadter-Conway $10,000 sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Inheritance/Multiple	①		③	④	⑤	⑥	⑦	⑧	⑨
60	Jump anywhere	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Nested function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Optional parameters	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Priority queue	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Probabilistic choice	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Roots of a quadratic function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Singly-linked list/Element insertion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
60	Undefined values	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Amb	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Continued fraction	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Documentation	①		③	④	⑤	⑥	⑦	⑧		⑩
59	Fast Fourier transform	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Fractal tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Host introspection	①	②	③	④	⑤	⑥	⑦	⑧		⑩
59	Memory allocation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Narcissistic decimal number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Pernicious numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Remove lines from a file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
59	Write language name in 3D ASCII	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	15 Puzzle Game	①	②	③	④	⑤	⑥	⑦	⑧		⑩
58	Arithmetic evaluation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Chinese remainder theorem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Population count	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Runge-Kutta method	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
58	Unix/ls	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Cholesky decomposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Circles of given radius through two points	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	Old lady swallowed a fly	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Partial function application	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Reduced row echelon form	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Sorting algorithms/Pancake sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
57	Sorting algorithms/Sleep sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	24 game/Solve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Animate a pendulum	①	②	③	④	⑤	⑥	⑦	⑧		⑩
56	Globally replace text in several files	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	Non-decimal radices/Input	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Rep-string	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
56	Sequence of primes by trial division	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	Test a function	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Binary strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Deal cards for FreeCell	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Factors of a Mersenne number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Forest fire	①	②	③	④	⑤	⑥		⑧		⑩
55	General FizzBuzz	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Generator/Exponential	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Get system command output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Huffman coding	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	LZW compression	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Plot coordinate pairs	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
55	Semiprime	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Add a variable to a class instance at runtime	①		③	④	⑤	⑥	⑦		⑨
54	Averages/Mean time of day	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Brownian tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Draw a clock	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Extreme floating point values	①	②	③	④	⑤	⑥	⑦	⑧		⑩
54	Knight's tour	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Mouse position	①	②	③	④	⑤	⑥	⑦	⑧		⑩
54	Odd word problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Scope modifiers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Sorting algorithms/Bead sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	Tic-tac-toe	①	②	③	④	⑤	⑥	⑦	⑧		⑩
54	Unicode strings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
54	XML/XPath	①		③	④	⑤	⑥	⑦	⑧		⑩
53	Barnsley fern	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Best shuffle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Compile-time calculation	①	②	③	④		⑥	⑦	⑧	⑨	⑩
53	Define a primitive data type	①	②	③	④	⑤	⑥	⑦	⑧
53	Delegates	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Dinesman's multiple-dwelling problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Fibonacci word	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Hash join	①	②	③	④	⑤	⑥	⑦	⑧	⑨
53	Modular exponentiation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Munching squares	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Random number generator (device)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Runtime evaluation/In an environment	①		③	④	⑤	⑥	⑦	⑧	⑨
53	Send email	①	②	③	④	⑤	⑥	⑦	⑧		⑩
53	Singleton	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Sorting algorithms/Permutation sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Stack traces	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Terminal control/Display an extended character	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	Thue-Morse	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
53	User input/Graphical	①	②	③	④	⑤	⑥	⑦	⑧		⑩
52	4-rings or 4-squares puzzle	①	②	③	④	⑤	⑥	⑦		⑨	⑩
52	Angle difference between two bearings	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Dutch national flag problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Exponentiation order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	I before E except after C	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Left factorials	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Matrix-exponentiation operator	①	②	③	④	⑤	⑥	⑦	⑧		⑩
52	Pointers and references	①	②	③	④	⑤	⑥	⑦	⑧	⑨
52	Rosetta Code/Rank languages by popularity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Synchronous concurrency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Truncate a file	①	②	③	④	⑤	⑥	⑦	⑧		⑩
52	Two Sum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
52	Yin and yang	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Bitmap/Write a PPM file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Doubly-linked list/Element definition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Draw a cuboid	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Multisplit	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
51	Statistics/Basic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	9 billion names of God the integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Dining philosophers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Emirp primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Extract file extension	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Handle a signal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Inverted syntax	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Iterated digits squaring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Maximum triangle path sum	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Modulinos		②	③	④	⑤	⑥		⑧		⑩
50	Non-continuous subsequences	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Sort three variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Topological sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	Truncatable primes	①	②	③	④		⑥	⑦	⑧	⑨	⑩
50	Unbias a random generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
50	XML/DOM serialization	①	②	③	④	⑤	⑥	⑦	⑧		⑩
49	Bernoulli numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Convert decimal number to rational	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Department Numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	First-class functions/Use numbers analogously	①	②	③	④	⑤	⑥	⑦	⑧	⑨
49	Grayscale image	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Integer overflow	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	JortSort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Leonardo numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Ludic numbers	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	Sierpinski triangle/Graphical	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
49	Terminal control/Cursor positioning	①	②	③	④	⑤	⑥	⑦	⑧	⑨
49	Wireworld	①	②	③	④	⑤	⑥		⑧		⑩
48	CUSIP	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	Mad Libs	①	②	③	④	⑤	⑥	⑦	⑧	⑨
48	Quickselect algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
48	Respond to an unknown method call	①	②	③	④	⑤	⑥	⑦	⑧	⑨
48	Ternary logic	①	②	③	④	⑤	⑥	⑦	⑧		⑩
48	Universal Turing machine	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	DNS query	①	②	③	④		⑥	⑦	⑧	⑨
47	Heronian triangles	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Keyboard input/Keypress check	①	②	③	④	⑤	⑥	⑦	⑧		⑩
47	Text processing/2	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
47	Zebra puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	2048	①	②	③	④	⑤		⑦	⑧		⑩
46	Anti-primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Call a function in a shared library	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	FASTA format	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Polymorphic copy	①	②	③	④	⑤	⑥	⑦	⑧		⑩
46	Polynomial regression	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	Subleq	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
46	Text processing/1	①	②	③	④	⑤	⑥	⑦	⑧		⑩
45	Cartesian product of two or more lists	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Dijkstra's algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Discordian date	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Doubly-linked list/Traversal	①	②	③	④	⑤		⑦	⑧	⑨	⑩
45	Fractran	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Greyscale bars/Display	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Move-to-front algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Rate counter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
45	Smith numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Base64 encode data	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Determine if only one instance is running	①	②	③	④	⑤	⑥	⑦	⑧		⑩
44	Echo server	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Farey sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	GUI component interaction	①	②	③	④	⑤		⑦	⑧		⑩
44	Last letter-first letter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Longest common prefix	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Longest string challenge	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Make directory path	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Metaprogramming	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Pascal matrix generation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Rosetta Code/Count examples	①	②	③	④	⑤	⑥		⑧	⑨
44	Search a list of records	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Send an unknown method call	①	②	③	④	⑤	⑥	⑦	⑧	⑨
44	Strip block comments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Terminal control/Coloured text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
44	Validate International Securities Identification Number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Doubly-linked list/Element insertion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Extensible prime generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Gaussian elimination	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Holidays related to Easter	①	②	③	④	⑤	⑥	⑦	⑧		⑩
43	Image noise	①	②	③	④	⑤	⑥	⑦	⑧		⑩
43	Parsing/Shunting-yard algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Perfect shuffle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Pig the dice game	①	②	③	④	⑤	⑥	⑦	⑧	⑨
43	Set consolidation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
43	Shoelace formula for polygonal area	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
42	Bitmap/Read a PPM file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Chinese zodiac	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Execute a Markov algorithm	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	History variables	①	②	③	④	⑤	⑥	⑦	⑧	⑨
42	Hofstadter Figure-Figure sequences	①	②	③	④	⑤	⑥		⑧	⑨	⑩
42	Naming conventions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Polynomial long division	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Sattolo cycle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Show Ascii table	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
42	Visualize a tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Active object	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Append a record to the end of a text file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Archimedean spiral	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Atomic updates	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Carmichael 3 strong pseudoprimes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Determinant and permanent	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Element-wise operations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Find the intersection of two lines	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Jaro distance	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	MD5/Implementation	①	②	③	④	⑤	⑥	⑦	⑧		⑩
41	Narcissist	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	OpenGL	①	②		④	⑤	⑥	⑦	⑧		⑩
41	Percentage difference between images	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Secure temporary file	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Sum to 100	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Table creation/Postal addresses	①	②	③	④		⑥	⑦	⑧	⑨	⑩
41	Tokenize a string with escaping	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Twelve statements	①	②	③	④	⑤	⑥	⑦	⑧	⑨
41	Variable size/Set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
41	Vector	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Bitmap/Flood fill	①	②		④	⑤	⑥	⑦	⑧	⑨	⑩
40	Calendar - for "REAL" programmers	①	②	③	④		⑥	⑦	⑧	⑨	⑩
40	Chaos game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Digital root/Multiplicative digital root	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Doubly-linked list/Definition	①	②	③	④	⑤		⑦	⑧	⑨	⑩
40	Kronecker product	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Password generator	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	Sparkline in unicode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Subtractive generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
40	Ulam spiral (for primes)	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Average loop length	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Colour bars/Display	①	②	③	④	⑤	⑥	⑦	⑧		⑩
39	Egyptian division	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Hickerson series of almost integers	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	McNuggets Problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Parametric polymorphism	①	②	③	④			⑦	⑧		⑩
39	Permutations/Derangements	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Sorting algorithms/Strand sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
39	Word frequency	①	②	③	④	⑤	⑥	⑦	⑧	⑨
38	GUI enabling/disabling of controls	①	②	③	④	⑤		⑦	⑧		⑩
38	Sorting algorithms/Radix sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Start from a main routine	①	②	③	④		⑥	⑦	⑧	⑨	⑩
38	Terminal control/Dimensions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
38	Topswops	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Bulls and cows/Player	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Color of a screen pixel	①	②	③	④	⑤	⑥	⑦	⑧		⑩
37	Combinations and permutations	①	②	③	④	⑤	⑥	⑦	⑧		⑩
37	Elementary cellular automaton	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	GUI/Maximum window dimensions	①	②	③	④	⑤	⑥	⑦	⑧		⑩
37	Inverted index	①	②	③	④	⑤	⑥	⑦	⑧		⑩
37	Jewels and Stones	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Keyboard input/Flush the keyboard buffer	①	②	③	④	⑤	⑥	⑦	⑧		⑩
37	Loops/Increment loop index within loop body	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	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	Speech synthesis	①	②	③	④	⑤	⑥	⑦	⑧		⑩
37	Taxicab numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Text between	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
37	Voronoi diagram	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Abundant odd numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Attractive numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Cantor set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Constrained genericity	①		③	④			⑦	⑧	⑨
36	Damm algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Knuth's algorithm S	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Magic squares of doubly even order	①	②	③	④	⑤	⑥	⑦		⑨	⑩
36	Parallel calculations	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Parsing/RPN to infix conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Pythagorean quadruples	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	QR decomposition	①	②	③	④	⑤	⑥		⑧	⑨	⑩
36	Statistics/Normal distribution	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Vampire number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
36	Variable-length quantity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Aliquot sequence classifications	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Bitmap/Midpoint circle algorithm	①	②	③	④	⑤		⑦	⑧	⑨
35	Break OO privacy	①		③	④	⑤	⑥	⑦		⑨
35	Deepcopy	①	②	③	④	⑤	⑥	⑦	⑧		⑩
35	Draw a pixel	①	②	③	④	⑤	⑥	⑦	⑧		⑩
35	Events	①	②	③	④	⑤	⑥		⑧	⑨	⑩
35	Function prototype	①	②	③	④		⑥	⑦	⑧	⑨	⑩
35	LU decomposition	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Longest Common Substring	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Object serialization	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Order disjoint list items	①	②	③	④	⑤	⑥	⑦	⑧	⑨
35	Pascal's triangle/Puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Permutation test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Permutations with repetitions	①	②	③	④	⑤	⑥	⑦	⑧		⑩
35	S-Expressions	①	②	③	④	⑤	⑥	⑦	⑧		⑩
35	Sailors, coconuts and a monkey problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Spinning rod animation/Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
35	Water collected between towers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Balanced ternary	①	②	③	④	⑤	⑥	⑦	⑧
34	Input/Output for Pairs of Numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	MD4	①	②	③	④	⑤	⑥	⑦	⑧		⑩
34	Metered concurrency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Minesweeper game	①	②	③	④	⑤	⑥		⑧		⑩
34	Multiline shebang	①		③	④	⑤	⑥		⑧	⑨	⑩
34	Numerical integration/Gauss-Legendre Quadrature	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	Square but not cube	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
34	Terminal control/Unicode output	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Colour pinstripe/Display	①	②	③	④	⑤	⑥	⑦	⑧		⑩
33	Cramer's rule	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Find palindromic numbers in both binary and ternary bases	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Flipping bits game	①	②	③	④	⑤	⑥	⑦	⑧		⑩
33	Floyd-Warshall algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Julia set	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Musical scale	①	②	③		⑤	⑥	⑦	⑧		⑩
33	Penney's game	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Prime conspiracy	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Primorial numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	RPG Attributes Generator	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Scope/Function names and labels	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Terminal control/Hiding the cursor	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Terminal control/Inverse video	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
33	Test integerness	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	Bitwise IO	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Casting out nines	①	②	③	④	⑤	⑥	⑦	⑧	⑨
32	Currency	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Fibonacci word/fractal	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	File extension is in extensions list	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Input/Output for Lines of Text	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Maze solving	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Ordered Partitions	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	Parametrized SQL statement	①	②	③	④	⑤	⑥	⑦	⑧		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		⑥		⑧	⑨	⑩
32	Sorting Algorithms/Circle Sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
32	UTF-8 encode and decode	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Base64 decode data	①	②	③	④	⑤	⑥	⑦		⑨	⑩
31	Bitmap/Bézier curves/Cubic	①	②	③	④	⑤		⑦	⑧	⑨	⑩
31	Chowla numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
31	Lychrel numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
31	Parse command-line arguments	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Pinstripe/Display	①	②	③	④	⑤	⑥	⑦	⑧		⑩
31	RIPEMD-160	①	②	③	④	⑤	⑥	⑦	⑧	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		⑨	⑩
31	Set puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Solve the no connection puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨
31	Straddling checkerboard	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Subset sum problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
31	Sutherland-Hodgman polygon clipping	①	②		④	⑤		⑦	⑧	⑨	⑩
31	Topic variable	①	②	③	④	⑤	⑥	⑦	⑧	⑨
30	Arithmetic-geometric mean/Calculate Pi	①	②	③	④	⑤	⑥	⑦	⑧		⑩
30	Bitmap/Bézier curves/Quadratic	①	②	③	④	⑤		⑦	⑧	⑨	⑩
30	Bitmap/Histogram	①	②	③	④	⑤		⑦	⑧	⑨	⑩
30	Brace expansion	①	②	③	④	⑤	⑥	⑦	⑧	⑨
30	Continued fraction/Arithmetic/Construct from rational number	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Create a file on magnetic tape	①	②	③	④	⑤		⑦	⑧		⑩
30	Executable library	①	②	③	④	⑤	⑥		⑧	⑨	⑩
30	Galton box animation	①	②	③	④	⑤	⑥	⑦	⑧		⑩
30	Integer roots	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Kahan summation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Kernighans large earthquake problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Metronome	①	②	③	④	⑤	⑥	⑦	⑧		⑩
30	Pythagoras tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Read a file character by character/UTF8	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Resistor mesh	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Simple database	①	②	③	④	⑤	⑥	⑦	⑧		⑩
30	Solve a Hidato puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
30	Truth table	①	②	③	④	⑤	⑥	⑦	⑧		⑩
29	Abbreviations, automatic	①	②	③	④	⑤	⑥	⑦		⑨
29	Check output device is a terminal	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Conjugate transpose	①	②	③	④	⑤	⑥	⑦	⑧		⑩
29	Feigenbaum constant calculation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Fusc sequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Hilbert curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Keyboard macros	①	②	③	④	⑤	⑥	⑦	⑧		⑩
29	MAC Vendor Lookup	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Multiple regression	①	②	③	④	⑤		⑦	⑧	⑨	⑩
29	Multiplicative order	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
29	Pattern matching	①	②	③	④		⑥	⑦	⑧
29	Sort a list of object identifiers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
29	URL parser	①	②	③	④	⑤	⑥	⑦	⑧
29	Van Eck sequence	①	②	③	④	⑤	⑥		⑧	⑨	⑩
29	Write to Windows event log	①	②		④	⑤	⑥	⑦	⑧	⑨	⑩
29	Zhang-Suen thinning algorithm	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	Check Machin-like formulas	①	②	③	④	⑤	⑥	⑦	⑧
28	Checkpoint synchronization	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Cycle detection	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Decimal floating point number to binary	①	②	③	④	⑤	⑥	⑦	⑧	⑨
28	Deconvolution/1D	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Entropy/Narcissist	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Execute SNUSP	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	Memory layout of a data structure	①	②	③	④	⑤	⑥	⑦	⑧
28	Negative base numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Numeric error propagation	①	②	③	④	⑤	⑥	⑦	⑧		⑩
28	Pentagram	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Rosetta Code/Find unimplemented tasks	①	②	③	④		⑥		⑧	⑨
28	Set of real numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Substitution Cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Terminal control/Preserve screen	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	The Name Game	①	②	③	④	⑤	⑥	⑦		⑨	⑩
28	Totient function	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
28	Use another language to call a function	①	②			⑤		⑦	⑧	⑨	⑩
28	Xiaolin Wu's line algorithm	①	②	③	④	⑤	⑥	⑦	⑧		⑩
27	Convex hull	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Copy stdin to stdout	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Display a linear combination	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Egyptian fractions	①	②	③	④	⑤	⑥	⑦	⑧	⑨
27	FTP	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Find the intersection of a line with a plane	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	First class environments	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	Implicit type conversion	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
27	Partition an integer X into N primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨
27	Poker hand analyser	①	②	③	④	⑤	⑥	⑦	⑧		⑩
27	Reflection/List properties	①		③	④	⑤	⑥	⑦		⑨
27	Rosetta Code/Fix code tags	①	②	③	④	⑤	⑥		⑧	⑨
27	Terminal control/Cursor movement	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	Active Directory/Connect	①		③		⑤	⑥	⑦	⑧		⑩
26	Arena storage pool	①	②	③	④	⑤		⑦	⑧	⑨	⑩
26	Chat server	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Cuban primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Death Star	①	②	③	④	⑤	⑥		⑧		⑩
26	Distributed programming	①		③	④	⑤	⑥		⑧		⑩
26	Euler's identity	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Find largest left truncatable prime in a given base	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	HTTPS/Authenticated	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Idiomatically determine all the lowercase and uppercase letters	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Largest number divisible by its digits	①	②	③	④	⑤	⑥	⑦		⑨	⑩
26	Magic 8-Ball	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Modular arithmetic	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Multi-dimensional array	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Nautical bell	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Paraffins	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Pragmatic directives	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Reflection/List methods	①	②	③	④	⑤	⑥	⑦		⑨
26	Safe addition	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Sort numbers lexicographically	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Sorting algorithms/Cycle sort	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Sorting algorithms/Patience sort	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Square-free integers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	State name puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
26	Table creation	①	②	③	④	⑤			⑧		⑩
26	Update a configuration file	①	②	③	④	⑤	⑥	⑦	⑧		⑩
26	Window creation/X11	①	②	③	④	⑤	⑥	⑦	⑧		⑩
25	Apply a digital filter (direct form II transposed)	①	②	③	④	⑤	⑥	⑦		⑨	⑩
25	Check input device is a terminal	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Create an object at a given address	①	②	③	④			⑦	⑧		⑩
25	Faulhaber's formula	①	②	③	④		⑥	⑦	⑧	⑨	⑩
25	Find first and last set bit of a long integer	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Go Fish	①	②	③	④	⑤		⑦	⑧		⑩
25	Image convolution	①	②	③	④	⑤	⑥	⑦	⑧		⑩
25	Natural sorting	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
25	Old Russian measure of length	①	②	③	④	⑤	⑥	⑦	⑧		⑩
25	Ramsey's theorem	①	②	③		⑤	⑥	⑦	⑧		⑩
25	Same Fringe	①	②	③	④	⑤	⑥		⑧	⑨	⑩
25	Textonyms	①	②	③	④	⑤	⑥	⑦	⑧	⑨
25	The ISAAC Cipher	①	②	③	④	⑤	⑥	⑦	⑧		⑩
24	Abbreviations, simple	①	②	③	④	⑤	⑥	⑦	⑧	⑨
24	Bacon cipher	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Chaocipher	①	②	③	④	⑤	⑥	⑦		⑨	⑩
24	Cheryl's Birthday	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Church Numerals	①	②	③	④	⑤	⑥		⑧	⑨
24	Faulhaber's triangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Honeycombs	①	②		④	⑤	⑥	⑦	⑧		⑩
24	Mian-Chowla sequence	①	②	③	④	⑤	⑥	⑦			⑩
24	Nim Game	①	②	③	④	⑤	⑥	⑦	⑧		⑩
24	Perfect totient numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
24	Polyspiral	①	②	③	④	⑤		⑦	⑧	⑨	⑩
24	RCRPG	①	②	③	④	⑤	⑥		⑧		⑩
24	Solve a Holy Knight's tour	①	②	③	④	⑤	⑥	⑦	⑧
24	Sum and Product Puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨
23	AVL tree	①	②	③		⑤		⑦			⑩
23	Card shuffles	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Decision tables	①	②	③	④	⑤	⑥	⑦	⑧		⑩
23	Determine if two triangles overlap	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Hough transform	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Make a backup file	①	②	③	④	⑤	⑥	⑦	⑧
23	Simulate input/Keyboard	①		③		⑤	⑥	⑦	⑧		⑩
23	Stream Merge	①	②	③	④		⑥	⑦	⑧		⑩
23	Superellipse	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
23	Type detection	①	②	③	④		⑥	⑦	⑧	⑨	⑩
23	Welch's t-test	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Birthday problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Brazilian numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Compiler/lexical analyzer	①	②	③	④	⑤	⑥		⑧		⑩
22	Days between dates	①	②	③	④	⑤	⑥	⑦		⑨
22	Dice game probabilities	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Eban numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Function frequency	①	②	③	④	⑤	⑥		⑧		⑩
22	K-means++ clustering	①	②	③	④	⑤		⑦	⑧		⑩
22	Loops/with multiple ranges	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Machine code	①	②		④	⑤		⑦	⑧		⑩
22	Magic squares of singly even order	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Main step of GOST 28147-89	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Percolation/Mean run density	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Permutations/Rank of a permutation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Plasma effect	①	②	③	④	⑤	⑥	⑦	⑧		⑩
22	Play recorded sounds	①	②			⑤			⑧
22	Sequence of primorial primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Sequence: smallest number greater than previous term with exactly n divisors	①	②	③	④	⑤	⑥	⑦		⑨	⑩
22	Superpermutation minimisation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	Thiele's interpolation formula	①	②	③	④	⑤		⑦	⑧	⑨	⑩
22	Total circles area	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
22	World Cup group stage	①	②	③	④	⑤	⑥	⑦	⑧	⑨
22	Yahoo! search interface	①		③		⑤	⑥	⑦	⑧
21	Abbreviations, easy	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Base58Check encoding	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Cipolla's algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Cut a rectangle	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
21	Generate random chess position	①	②	③	④	⑤	⑥	⑦		⑨	⑩
21	Idiomatically determine all the characters that can be used for symbols	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Koch curve	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
21	Linux CPU utilization	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
21	Loops/Wrong ranges	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
21	Nonoblock	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Parallel Brute Force	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
21	Perlin noise	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
21	Pig the dice game/Player	①	②	③	④	⑤	⑥		⑧
21	Record sound	①			④	⑤		⑦	⑧		⑩
21	Reverse the gender of a string	①	②	③	④	⑤	⑥	⑦	⑧
21	SOAP	①		③		⑤	⑥	⑦			⑩
21	Safe primes and unsafe primes	①	②	③	④	⑤	⑥	⑦		⑨
21	Tonelli-Shanks algorithm	①	②	③	④	⑤	⑥	⑦	⑧	⑨
21	Video display modes	①	②	③	④	⑤	⑥	⑦
21	Window management	①	②	③	④	⑤	⑥		⑧		⑩
21	Word break problem	①	②	③	④	⑤	⑥	⑦	⑧	⑨
20	A* search algorithm	①	②		④	⑤		⑦	⑧	⑨	⑩
20	AudioAlarm	①	②			⑤		⑦	⑧	⑨
20	Create an object/Native demonstration	①	②	③	④	⑤	⑥	⑦	⑧	⑨
20	Draw a rotating cube	①	②	③	④	⑤	⑥	⑦	⑧		⑩
20	Elementary cellular automaton/Random Number Generator	①	②	③		⑤	⑥	⑦	⑧	⑨	⑩
20	Kronecker product based fractals	①	②	③	④	⑤	⑥	⑦		⑨	⑩
20	Law of cosines - triples	①	②	③	④	⑤	⑥	⑦		⑨	⑩
20	Long primes	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
20	Median filter	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
20	Mersenne primes	①	②	③	④	⑤	⑥	⑦		⑨
20	Parse an IP Address	①	②	③	④	⑤	⑥	⑦	⑧		⑩
20	Playfair cipher	①	②	③		⑤	⑥	⑦		⑨
20	Ramer-Douglas-Peucker line simplification	①	②	③	④	⑤	⑥	⑦	⑧	⑨
20	Sokoban	①	②	③	④	⑤	⑥	⑦	⑧		⑩
20	Solve a Numbrix puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨
19	Active Directory/Search for a user	①		③		⑤					⑩
19	Bilinear interpolation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
19	Chebyshev coefficients	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
19	Chemical Calculator	①	②	③	④	⑤	⑥	⑦	⑧	⑨
19	Diversity prediction theorem	①	②	③	④	⑤	⑥	⑦		⑨	⑩
19	Elliptic curve arithmetic	①	②	③	④	⑤	⑥	⑦	⑧		⑩
19	Humble numbers	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
19	Markov chain text generator	①	②	③	④	⑤	⑥	⑦	⑧
19	N-body problem	①	②	③	④	⑤	⑥	⑦			⑩
19	Sequence: smallest number with exactly n divisors	①	②	③	④	⑤	⑥	⑦		⑨	⑩
19	Sierpinski pentagon	①		③	④	⑤	⑥	⑦	⑧	⑨	⑩
19	Simulate input/Mouse	①		③	④	⑤		⑦	⑧		⑩
19	Solve a Hopido puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨
19	Weird numbers	①	②	③	④	⑤	⑥	⑦			⑩
18	100 prisoners	①	②	③	④	⑤	⑥		⑧	⑨
18	Bell numbers	①	②	③	④	⑤	⑥	⑦		⑨	⑩
18	Burrows–Wheeler transform	①	②	③	④	⑤	⑥	⑦		⑨	⑩
18	Color quantization	①	②	③	④	⑤	⑥	⑦	⑧		⑩
18	Deming's Funnel	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	Eertree	①	②	③	④	⑤	⑥	⑦	⑧	⑨
18	Lucky and even lucky numbers	①	②	③	④	⑤	⑥	⑦		⑨
18	Mastermind	①	②	③	④	⑤	⑥	⑦		⑨
18	Mind boggling card trick	①	②	③	④	⑤	⑥	⑦		⑨
18	Native shebang	①		③	④	⑤	⑥		⑧	⑨	⑩
18	Orbital elements	①	②	③	④	⑤	⑥	⑦		⑨	⑩
18	Pell's equation	①	②	③	④	⑤	⑥	⑦		⑨
18	Shortest common supersequence	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
18	Snake And Ladder	①	②	③	④	⑤	⑥	⑦	⑧		⑩
18	Strong and weak primes	①	②	③	④	⑤	⑥			⑨
17	Addition chains	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
17	Assertions in design by contract	①	②	③	④			⑦	⑧	⑨
17	Bitcoin/public point to address	①	②	③	④	⑤	⑥		⑧	⑨	⑩
17	Commatizing numbers	①	②	③	④	⑤	⑥	⑦	⑧
17	Data Encryption Standard	①	②	③		⑤		⑦			⑩
17	Elementary cellular automaton/Infinite length	①	②	③	④	⑤	⑥	⑦	⑧	⑨
17	First perfect square in base N with N unique digits	①	②	③	④	⑤	⑥			⑨
17	Four is magic	①	②	③	④	⑤	⑥	⑦	⑧	⑨
17	Index finite lists of positive integers	①	②	③	④	⑤	⑥	⑦	⑧	⑨
17	Joystick position	①			④	⑤
17	Kosaraju	①	②	③	④	⑤	⑥	⑦	⑧	⑨
17	Levenshtein distance/Alignment	①	②	③	④		⑥	⑦	⑧	⑨	⑩
17	P-value correction	①	②	③	④	⑤	⑥	⑦		⑨	⑩
17	Percolation/Site percolation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
17	Readline interface	①	②	③	④		⑥	⑦	⑧		⑩
17	Reflection/Get source	①	②	③	④	⑤		⑦		⑨
17	SQL-based authentication	①		③	④	⑤	⑥	⑦	⑧		⑩
17	Selective File Copy	①	②	③			⑥	⑦	⑧	⑨
17	Untrusted environment	①	②	③			⑥	⑦	⑧	⑨	⑩
16	Arithmetic coding/As a generalized change of radix	①	②	③	④	⑤	⑥	⑦		⑨
16	Aspect Oriented Programming	①	②	③	④	⑤	⑥	⑦			⑩
16	Code segment unload		②	③	④	⑤	⑥	⑦	⑧
16	Color wheel	①	②	③	④	⑤	⑥	⑦	⑧	⑨
16	Find duplicate files	①	②	③		⑤	⑥		⑧	⑨
16	Finite state machine	①	②	③	④			⑦	⑧	⑨	⑩
16	Fixed length records	①	②	③	④	⑤	⑥			⑨
16	HTTPS/Client-authenticated	①	②	③	④	⑤	⑥	⑦	⑧	⑨
16	I.Q. Puzzle	①	②	③	④	⑤	⑥	⑦	⑧	⑨
16	Just in time processing on a character stream	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
16	K-d tree	①	②	③	④	⑤		⑦	⑧	⑨	⑩
16	Knuth's power tree	①	②	③	④	⑤	⑥	⑦	⑧	⑨
16	Kolakoski sequence	①	②	③	④	⑤	⑥	⑦		⑨	⑩
16	List rooted trees	①	②	③	④	⑤		⑦	⑧	⑨	⑩
16	Monads/List monad	①		③	④		⑥	⑦	⑧	⑨
16	Montgomery reduction	①	②	③	④	⑤	⑥	⑦	⑧	⑨
16	Perceptron	①	②		④			⑦	⑧	⑨
16	Polynomial synthetic division	①	②	③	④	⑤	⑥	⑦	⑧	⑨
16	Range consolidation	①	②	③	④	⑤	⑥		⑧	⑨
16	Sexy primes	①	②	③	④	⑤	⑥	⑦		⑨	⑩
16	Vogel's approximation method	①	②	③	④	⑤		⑦	⑧	⑨	⑩
16	Zeckendorf arithmetic	①	②	③	④	⑤		⑦	⑧		⑩
15	Compiler/code generator	①	②		④	⑤	⑥			⑨	⑩
15	Factorions	①	②	③	④		⑥		⑧	⑨	⑩
15	Free polyominoes enumeration	①	②		④	⑤		⑦	⑧
15	Hunt The Wumpus	①	②	③	④	⑤			⑧
15	Intersecting Number Wheels	①		③	④	⑤	⑥			⑨
15	Monads/Maybe monad	①			④			⑦	⑧	⑨
15	NYSIIS	①	②	③	④	⑤	⑥	⑦	⑧	⑨
15	Names to numbers	①	②	③		⑤	⑥	⑦	⑧	⑨
15	Nonogram solver	①	②		④	⑤	⑥	⑦	⑧
15	Numeric separator syntax	①	②	③	④	⑤	⑥		⑧	⑨
15	Peano curve	①	②	③	④	⑤	⑥		⑧	⑨	⑩
15	Percolation/Bond percolation	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
15	Percolation/Mean cluster density	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
15	Primes - allocate descendants to their ancestors	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
15	Rendezvous	①	②	③	④				⑧	⑨	⑩
15	Retrieve and search chat history	①	②	③	④				⑧	⑨	⑩
15	Self-hosting compiler	①	②	③		⑤		⑦		⑨
15	Separate the house number from the street name	①	②	③	④	⑤	⑥	⑦	⑧
15	Successive prime differences	①	②	③	④	⑤	⑥			⑨
15	Sum data type	①	②	③	④					⑨	⑩
15	Sunflower fractal	①	②	③	④		⑥		⑧	⑨	⑩
15	Vigenère cipher/Cryptanalysis	①	②		④	⑤		⑦	⑧	⑨	⑩
14	Approximate Equality	①	②	③	④	⑤	⑥	⑦	⑧	⑨
14	Bitmap/Read an image through a pipe	①		③	④	⑤		⑦	⑧	⑨	⑩
14	Compiler/virtual machine interpreter	①	②		④	⑤	⑥			⑨	⑩
14	EKG sequence convergence	①	②	③	④	⑤	⑥	⑦		⑨	⑩
14	Find URI in text	①	②	③				⑦	⑧
14	Gauss-Jordan matrix inversion	①	②	③	④		⑥	⑦	⑧	⑨
14	Imaginary base numbers	①	②	③	④	⑤		⑦			⑩
14	Most frequent k chars distance	①	②	③		⑤	⑥	⑦	⑧
14	Nested templated data	①	②	③	④	⑤	⑥		⑧	⑨
14	Particle Swarm Optimization	①	②		④	⑤		⑦	⑧
14	Smarandache prime-digital sequence	①	②	③	④	⑤	⑥			⑨
14	Spelling of ordinal numbers	①	②	③	④	⑤	⑥	⑦		⑨
14	Teacup rim text	①	②	③	④	⑤	⑥			⑨
14	Terminal control/Positional read	①	②	③	④	⑤		⑦	⑧		⑩
14	Vibrating rectangles	①	②	③	④	⑤	⑥		⑧		⑩
13	Compare sorting algorithms' performance	①	②		④	⑤		⑦			⑩
13	Compiler/syntax analyzer	①	②		④	⑤	⑥				⑩
13	De Bruijn sequences	①	②	③	④	⑤	⑥	⑦	⑧	⑨
13	Draw pixel 2	①	②	③	④		⑥	⑦	⑧		⑩
13	Fermat numbers	①	②	③	④	⑤	⑥			⑨	⑩
13	Fraction reduction	①	②	③	④		⑥	⑦	⑧		⑩
13	Geometric algebra	①	②	③	④	⑤		⑦
13	Lah numbers	①	②	③	④		⑥	⑦		⑨
13	Matrix chain multiplication	①	②	③	④		⑥	⑦		⑨	⑩
13	Mayan numerals	①	②	③	④	⑤	⑥			⑨
13	Monads/Writer monad	①			④			⑦		⑨
13	Numerical integration/Adaptive Simpson's method	①	②	③	④	⑤	⑥	⑦		⑨	⑩
13	Proof		②						⑧
13	Suffix tree	①	②	③		⑤	⑥	⑦	⑧
13	Transportation problem	①	②	③	④			⑦	⑧
13	Word search	①	②		④	⑤		⑦	⑧	⑨
13	XML Validation	①		③		⑤	⑥	⑦			⑩
12	Abelian sandpile model	①	②	③	④	⑤	⑥
12	Bitmap/PPM conversion through a pipe	①		③	④	⑤		⑦	⑧	⑨	⑩
12	Compiler/AST interpreter	①	②		④	⑤	⑥			⑨	⑩
12	Deconvolution/2D+	①	②	③	④	⑤	⑥				⑩
12	File size distribution	①	②	③	④	⑤	⑥	⑦	⑧	⑨	⑩
12	Generalised floating point addition	①	②	③	④		⑥	⑦	⑧
12	N-smooth numbers	①	②	③	④		⑥	⑦		⑨
12	Permutations with some identical elements	①	②	③	④		⑥			⑨
12	Random Latin Squares	①	②	③	④	⑤				⑨
12	Sequence: nth number with exactly n divisors	①	②	③	④	⑤	⑥	⑦		⑨
12	Singly-linked list/Element removal	①	②	③	④			⑦	⑧		⑩
12	Snake	①	②	③			⑥	⑦
12	Topological sort/Extracted top item	①	②	③		⑤	⑥	⑦	⑧		⑩
11	Angles (geometric), normalization and conversion	①	②	③	④	⑤	⑥			⑨	⑩
11	Chernick's Carmichael numbers	①	②	③	④		⑥			⑨	⑩
11	Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N)	①		③	④	⑤		⑦	⑧	⑨
11	Determine if a string has all the same characters	①		③	④	⑤	⑥		⑧	⑨
11	Functional coverage tree	①	②	③	④	⑤	⑥	⑦	⑧
11	Gapful numbers	①	②	③	④	⑤	⑥			⑨
11	OpenWebNet Password	①	②	③	④	⑤		⑦	⑧
11	Peaceful chess queen armies	①	②	③	④	⑤	⑥	⑦		⑨	⑩
11	Pierpont primes	①	②	③	④	⑤	⑥	⑦		⑨
11	Safe mode	①	②	③			⑥			⑨
11	Stirling numbers of the first kind	①	②	③	④		⑥			⑨
11	Stirling numbers of the second kind	①	②	③	④		⑥			⑨
11	Super-d numbers	①	②	③		⑤	⑥			⑨
11	Zumkeller numbers	①	②	③	④	⑤	⑥		⑧	⑨
10	15 puzzle solver	①	②		④	⑤			⑧
10	Banker's algorithm	①	②		④			⑦	⑧		⑩
10	Factorial base numbers indexing permutations of a collection	①	②	③	④	⑤	⑥			⑨
10	Interactive Help	①	②	③	④		⑥		⑧
10	Latin Squares in reduced form	①	②		④	⑤		⑦
10	Matrix Digital Rain	①		③	④		⑥		⑧	⑨
10	Palindromic gapful numbers	①	②	③	④	⑤				⑨
10	Penrose tiling	①	②	③	④		⑥	⑦	⑧
10	Print debugging statement	①	②	③			⑥		⑧	⑨	⑩
10	Sine wave	①	②	③			⑥	⑦	⑧
10	Tarjan	①	②	③	④		⑥	⑦	⑧	⑨
10	VList	①	②					⑦	⑧		⑩
9	ASCII art diagram converter	①	②	③	④				⑧
9	Audio frequency generator	①	②				⑥
9	Canny edge detector	①			④	⑤					⑩
9	Catmull–Clark subdivision surface	①			④	⑤					⑩
9	Combinations with repetitions/Square Digit Chain	①	②	③	④		⑥	⑦		⑨
9	Four is the number of letters in the ...	①	②	③	④	⑤	⑥	⑦		⑨
9	Launch rocket with countdown and acceleration in stdout	①	②	③	④		⑥		⑧	⑨
9	Metallic ratios	①	②	③	④		⑥			⑨
9	Parse EBNF	①	②	③			⑥
9	Pentomino tiling	①	②		④			⑦	⑧	⑨
9	Run as a daemon or service	①		③					⑧		⑩
9	Simulated annealing	①	②		④				⑧	⑨
9	Suffixation of decimal numbers	①	②	③	④	⑤	⑥			⑨
8	21 Game	①	②	③	④		⑥		⑧
8	Checksumcolor	①	②	③	④		⑥			⑨
8	Determine if a string is collapsible	①		③	④		⑥			⑨
8	Execute CopyPasta Language	①		③	④	⑤				⑨
8	External sort	①	②	③	④	⑤	⑥
8	French Republican calendar	①	②	③			⑥	⑦
8	Greed	①	②		④			⑦
8	Morpion solitaire	①	②						⑧		⑩
8	Numerical and alphabetical suffixes	①	②	③	④	⑤				⑨
8	Railway circuit	①	②		④			⑦	⑧	⑨
8	Ramanujan's constant	①	②	③	④		⑥
8	Resistance Calculator	①	②	③		⑤	⑥			⑨
8	Sorting algorithms/Tree sort on a linked list	①	②					⑦	⑧	⑨
8	Starting a web browser	①	②	③			⑥		⑧
8	Tetris				④
8	Time-based One-time Password Algorithm	①		③					⑧	⑨
8	Unit testing	①		③	④				⑧	⑨
7	Colour pinstripe/Printer	①	②			⑤			⑧
7	Curve that touches three points	①	②	③	④		⑥			⑨
7	Determine if a string has all unique characters	①		③	④		⑥			⑨
7	Gradient descent	①	②	③	④		⑥		⑧
7	IPC via named pipe	①							⑧	⑨	⑩
7	Multidimensional Newton-Raphson method	①	②	③	④			⑦		⑨
7	One-time pad	①	②	③	④			⑦	⑧
7	Pinstripe/Printer	①	②						⑧
7	Rare numbers	①	②		④
7	Resistance Network Calculator	①	②	③	④	⑤	⑥			⑨
7	Rosetta Code/Rank languages by number of users	①	②	③			⑥		⑧	⑨
7	Spoof game	①	②					⑦		⑨	⑩
7	User defined pipe and redirection operators	①		③			⑥		⑧
7	Using a Speech engine to highlight words	①
6	16 Puzzle Game	①	②		④
6	Determine if a string is squeezable	①		③	④	⑤				⑨
6	Display an outline as a nested table	①	②	③	④					⑨
6	OpenGL Pixel Shader	①						⑦	⑧		⑩
6	OpenGL/Utah Teapot	①	②					⑦			⑩
6	Robots	①	②	③				⑦
6	Rosetta Code/Tasks without examples	①	②	③			⑥			⑨
6	Tree datastructures	①	②	③		⑤	⑥			⑨
5	Addition-chain exponentiation	①	②						⑧		⑩
5	Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2)	①		③				⑦
5	Fibonacci heap	①	②			⑤		⑦
5	Hexapawn	①	②		④
5	Mayan calendar	①	②	③			⑥			⑨
5	Remote agent/Agent interface	①			④						⑩
5	Remote agent/Agent logic	①			④						⑩
5	Remote agent/Simulation	①			④						⑩
5	Rosetta Code/Run examples			③
5	Text to HTML	①	②						⑧
4	Boids		②		④						⑩
4	Chess player	①	②			⑤
4	Elliptic Curve Digital Signature Algorithm	①	②								⑩
4	I'm a software engineer, get me out of here	①	②		④
4	OLE Automation	①				⑤
4	Terminal control/Restricted width positional input/No wrapping	①	②	③				⑦
4	Terminal control/Restricted width positional input/With wrapping	①	②	③				⑦
4	Using the Meetup.com API	①				⑤
3	Audio Overlap Loop	①
3	Generalised floating point multiplication	①	②
3	Latin Squares in reduced form/Randomizing using Jacobson and Matthews’ Technique	①	②
3	Process SMIL directives in XML data	①	②
3	Solve a Rubik's Cube	①	②					⑦
3	Tamagotchi emulator
2	Black Box	①
2	IRC gateway	①
2	Raster bars	①		③
2	Recursive descent parser generator
2	Solving coin problems	①					⑥
2	Unicode polynomial equation	①	②
1	15 Puzzle Game in 3D
1	Rosetta Code/List authors of task descriptions			③
1	Ukkonen’s Suffix Tree Construction	①
1	Waveform analysis/Doh ray me	①
1	Waveform analysis/Top and tail	①
0	Blackjack strategy
0	Chess player/Move generation
0	Chess player/Program options and user interface
0	Chess player/Search and evaluation
0	Rosetta Code/Tasks sorted by average lines of code
0	Weather Routing