combinations

问题 I want to generate a list of all possible combinations of a list of strings (it's actually a list of objects, but for simplicity we'll use strings). I need this list so that I can test every possible combination in a unit test. So for example if I have a list of: var allValues = new List<string>() { "A1", "A2", "A3", "B1", "B2", "C1" } I need a List<List<string>> with all combinations like: A1 A2 A3 B1 B2 C1 A1 A2 A1 A2 A3 A1 A2 A3 B1 A1 A2 A3 B1 B2 A1 A2 A3 B1 B2 C1 A1 A3 A1 A3 B1 etc... A

问题 I want to generate a list of all possible combinations of a list of strings (it's actually a list of objects, but for simplicity we'll use strings). I need this list so that I can test every possible combination in a unit test. So for example if I have a list of: var allValues = new List<string>() { "A1", "A2", "A3", "B1", "B2", "C1" } I need a List<List<string>> with all combinations like: A1 A2 A3 B1 B2 C1 A1 A2 A1 A2 A3 A1 A2 A3 B1 A1 A2 A3 B1 B2 A1 A2 A3 B1 B2 C1 A1 A3 A1 A3 B1 etc... A

问题 I am trying to deduce an algorithm which generates all possible combinations of a specific size something like a function which accepts an array of chars and size as its parameter and return an array of combinations. Example: Let say we have a set of chars: Set A = {A,B,C} a) All possible combinations of size 2: (3^2 = 9) AA, AB, AC BA, BB, BC CA, CB, CC b) All possible combinations of size 3: (3^3 = 27) AAA, AAB, AAC, ABA, ABB, ACC, CAA, BAA, BAC, .... ad so on total combinations = 27 Please

问题 I am trying to deduce an algorithm which generates all possible combinations of a specific size something like a function which accepts an array of chars and size as its parameter and return an array of combinations. Example: Let say we have a set of chars: Set A = {A,B,C} a) All possible combinations of size 2: (3^2 = 9) AA, AB, AC BA, BB, BC CA, CB, CC b) All possible combinations of size 3: (3^3 = 27) AAA, AAB, AAC, ABA, ABB, ACC, CAA, BAA, BAC, .... ad so on total combinations = 27 Please

问题 According to the entered license plate (eg. ABC123 ) and a list of replacement values (eg 1 replaced by I ). I need to get all possibles combinations. For example: 1 => I 3 => B A => H 0 (zero) => O O => 0 (zero) Input : ABC123 Expected output : ABC123, ABCI23, ABCI28, ABC128, HBC123, HBCI23, HBCI28, HBC128 I tried with String Combinations With Character Replacement, but I can't... 回答1: You can do it using recursion, iterate for each character and call recursively using the original character

问题 I wonder if someone can help with the following task: What is the way to get all combinations a list can be split into sublists, when order does not matter? Let's say I have a list of 4 items: import itertools as it a = [1, 2, 3, 4] print(list(it.combinations(a, 2))) That will give me a list of 6 possible pairs: [(1, 2), (1, 3), (1, 4), (2, 3), (2, 4), (3, 4)] How to make (out of it? or any other way) a set of lists that contain original [1, 2, 3, 4] sequence in any order? So for this example

问题 I would like to count all combinations in a data.frame. The data look like this 9 10 11 12 1 1 1 1 1 2 0 0 0 0 3 0 0 0 0 4 1 1 1 1 5 1 1 1 1 6 0 0 0 0 7 1 0 0 1 8 1 0 0 1 9 1 1 1 1 10 1 1 1 1 The output I want is simply comb n 1 1 1 1 5 0 0 0 0 3 1 0 0 1 2 Do you know any simple function to do that ? Thanks dt = structure(list(`9` = c(1, 0, 0, 1, 1, 0, 1, 1, 1, 1), `10` = c(1, 0, 0, 1, 1, 0, 0, 0, 1, 1), `11` = c(1, 0, 0, 1, 1, 0, 0, 0, 1, 1), `12` = c(1, 0, 0, 1, 1, 0, 1, 1, 1, 1)), .Names =

问题 I am trying to generate every possible unique combination from an array, but its not as straightforward as generating all combinations..... Eg. I have an array {a,b,c,d,e,f} ... my result should be like this... ab, cd, ef abc, def ac, bd, ef abcf, ed ....etc ...... basically in every result set all elements of the array should be included .... Also 'ab' is the same as'ba' and 'abcd' is the same as 'dcba' or 'cbda' .... The position does not matter .... and no repetition allowed ... 'aaa' or

问题 So I've seen similar versions of this question asked before (Getting all combinations which sum up to 100 using R) but I'm struggling to find a way to figure out what I need to run specifically. I'm trying to create a list in R of all the different combinations of 6 numbers that add up to 10. However, I want to include 0s and repeats of the same # in the row. So it would look something like this: 10 0 0 0 0 0 9 1 0 0 0 0 8 2 0 0 0 0 I've tried running the following: C = t(restrictedparts(10,6

问题 So I've seen similar versions of this question asked before (Getting all combinations which sum up to 100 using R) but I'm struggling to find a way to figure out what I need to run specifically. I'm trying to create a list in R of all the different combinations of 6 numbers that add up to 10. However, I want to include 0s and repeats of the same # in the row. So it would look something like this: 10 0 0 0 0 0 9 1 0 0 0 0 8 2 0 0 0 0 I've tried running the following: C = t(restrictedparts(10,6