Need Hints to design a开发者_如何学Cn efficient algorithm that takes the following input and spits out the following output.
I would like to generate all the possible combinations of the elements of a given number of vectors. For example, for [1 2], [1 2] and [4 5] I want to generate the elements:
I have a开发者_如何学运维 class structure like so: Person Dogs (dog 1, dog 2, etc) Puppies (puppy A, puppy B, etc)
As the title states, does Ruby allow Cartesian product types? I can\'t find any开发者_StackOverflow中文版thing on it anywhere.
Dear all, Given a variable that takes on, say, three values, I\'m trying to generate all possible combinations of, say, triplets of these variables.
I\'m 开发者_如何学编程having some trouble figuring out how to generate the cartesian product of a jagged array. I have googled around, but i cant seem to find an implentation for a iterative language.
On reading the documentation of the MySQL join commands, it looks like all the joins are analogous to , by simply finding the Cartesian product and then selecting from that result.
I\'m looking for an example of how, in Ruby, a C like language, or pseudo code, to create the Cartesian product of a variable number of arrays of integers, each of differing length, and step through t
There are two tables: table A and table B. They have the same columns and the data is practically identical. They both have auto-incremented IDs, the only difference between the two is that they have
Given two lists, I can produce a list of al开发者_如何学Pythonl permutations the Cartesian Product of these two lists: