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4digits, an open source version of bulls and cows. This software uses "A" to denote "bulls" (digit in the correct position) and "B" to denote "cows" (digit in the wrong position). Bulls and cows (also known as cows and bulls or pigs and bulls) is a code-breaking mind or paper and pencil game for two or more players.
In 1977, Donald Knuth demonstrated that the codebreaker can solve the pattern in five moves or fewer, using an algorithm that progressively reduces the number of possible patterns. [13] Described using the numbers 1–6 to represent the six colors of the code pegs, the algorithm works as follows:
"The Troubles of Interior Design–A Complexity Analysis of the Game Heyawake" (PDF). Proceedings, 4th International Conference on Fun with Algorithms, LNCS 4475 . Springer, Berlin/Heidelberg. pp. 198– 212.
The problem, as translated into English by Ivor Thomas, states: [9] If thou art diligent and wise, O stranger, compute the number of cattle of the Sun, who once upon a time grazed on the fields of the Thrinacian isle of Sicily, divided into four herds of different colours, one milk white, another a glossy black, a third yellow and the last dappled.
OpenML: [493] Web platform with Python, R, Java, and other APIs for downloading hundreds of machine learning datasets, evaluating algorithms on datasets, and benchmarking algorithm performance against dozens of other algorithms. PMLB: [494] A large, curated repository of benchmark datasets for evaluating supervised machine learning algorithms ...
All source code is licensed under the GNU General Public License (GPL) version 2. Supported languages include: Chinese, English, French, German, Italian, Russian, Spanish, and Polish. Supports multi-threaded rendering and computation. Plugin architecture for developers, including rendering, interactive tools, commands, and Python scripts.
An alternative to using mathematical pseudocode (involving set theory notation or matrix operations) for documentation of algorithms is to use a formal mathematical programming language that is a mix of non-ASCII mathematical notation and program control structures. Then the code can be parsed and interpreted by a machine.
A goat/bull/horse is tethered at point on the circumference. How long does the rope r {\displaystyle r} need to be to allow the animal to graze on exactly one half of the circle's area (white area in diagram, in plane geometry, called a lens )?