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# get all possible string values

 P: n/a I need to write a method that accepts say three lists of strings and generates all possible combinations of strings from these lists in the order that the lists are provided. eg: list1 list2 list3 A B Z B C Y C D X The method would need to generate the following strings: ABZ ABY ABX ACZ ACY ACX ADZ ADY ADZ BBZ.... and so on up to CDX Can anyone help me? Nov 16 '05 #1
7 Replies

 P: n/a I should add that the lists can be of different lengths to each other... Caroline "Caroline" wrote in message news:ee**************************@posting.google.c om...I need to write a method that accepts say three lists of strings and generates all possible combinations of strings from these lists in the order that the lists are provided. eg: list1 list2 list3 A B Z B C Y C D X The method would need to generate the following strings: ABZ ABY ABX ACZ ACY ACX ADZ ADY ADZ BBZ.... and so on up to CDX Can anyone help me? Nov 16 '05 #2

 P: n/a Code is given below, you can extend it and make it more dynamic for any number of lists and number or items in any list string [] List1 = {"A","B","C"}; string [] List2 = {"B","C","D"}; string [] List3 = {"Z","Y","X"}; foreach(string s1 in List1) { foreach(string s2 in List2) { foreach(string s3 in List3) { string s = s1+s2+s3; } } } "Caroline" wrote in message news:%2****************@TK2MSFTNGP10.phx.gbl...I should add that the lists can be of different lengths to each other... Caroline "Caroline" wrote in message news:ee**************************@posting.google.c om...I need to write a method that accepts say three lists of strings and generates all possible combinations of strings from these lists in the order that the lists are provided. eg: list1 list2 list3 A B Z B C Y C D X The method would need to generate the following strings: ABZ ABY ABX ACZ ACY ACX ADZ ADY ADZ BBZ.... and so on up to CDX Can anyone help me? Nov 16 '05 #3

 P: n/a Ashish, I think that your solution give doubles. However it is a nice student problem. :-) Cor Nov 16 '05 #4

 P: n/a "Cor Ligthert" wrote in message news:Oe**************@tk2msftngp13.phx.gbl... Ashish, I think that your solution give doubles. However it is a nice student problem. :-) Cor Cor, I am not sure where you see double as that code can not give double values. Output with this kind of combenation is 3^3 = 27. A sample output for you in case you did not run that code. I agree that it is a simple programming 101 problem. ABZ ABY ABX ACZ ACY ACX ADZ ADY ADX BBZ BBY BBX BCZ BCY BCX BDZ BDY BDX CBZ CBY CBX CCZ CCY CCX CDZ CDY CDX and now with some numbers 147 148 149 157 158 159 167 168 169 247 248 249 257 258 259 267 268 269 347 348 349 357 358 359 367 368 369 "Cor Ligthert" wrote in message news:Oe**************@tk2msftngp13.phx.gbl... Ashish, I think that your solution give doubles. However it is a nice student problem. :-) Cor Nov 16 '05 #5

 P: n/a Ashish, Sorry that I had doubts, I did it on first sight, So ten times Sorry, Cor Nov 16 '05 #6

 P: n/a Thanks for that, however the problem I have and should have mentioned at the start, is that I don't know how many lists I am going to have to work with. Therefore I can't write nested loops to cater for each list. I have a feeling that a recursive function is required but I'm not quite sure how to write it. Caroline "Ashish Das" wrote in message news:%2****************@TK2MSFTNGP09.phx.gbl... Code is given below, you can extend it and make it more dynamic for any number of lists and number or items in any list string [] List1 = {"A","B","C"}; string [] List2 = {"B","C","D"}; string [] List3 = {"Z","Y","X"}; foreach(string s1 in List1) { foreach(string s2 in List2) { foreach(string s3 in List3) { string s = s1+s2+s3; } } } "Caroline" wrote in message news:%2****************@TK2MSFTNGP10.phx.gbl...I should add that the lists can be of different lengths to each other... Caroline "Caroline" wrote in message news:ee**************************@posting.google.c om...I need to write a method that accepts say three lists of strings and generates all possible combinations of strings from these lists in the order that the lists are provided. eg: list1 list2 list3 A B Z B C Y C D X The method would need to generate the following strings: ABZ ABY ABX ACZ ACY ACX ADZ ADY ADZ BBZ.... and so on up to CDX Can anyone help me? Nov 16 '05 #7

 P: n/a I finally figured it out. This is how i did it: I have a collection of lists called ListCollection: .... foreach ( int x=0; x wrote in message news:OG**************@TK2MSFTNGP09.phx.gbl... Thanks for that, however the problem I have and should have mentioned at the start, is that I don't know how many lists I am going to have to work with. Therefore I can't write nested loops to cater for each list. I have a feeling that a recursive function is required but I'm not quite sure how to write it. Caroline "Ashish Das" wrote in message news:%2****************@TK2MSFTNGP09.phx.gbl... Code is given below, you can extend it and make it more dynamic for any number of lists and number or items in any list string [] List1 = {"A","B","C"}; string [] List2 = {"B","C","D"}; string [] List3 = {"Z","Y","X"}; foreach(string s1 in List1) { foreach(string s2 in List2) { foreach(string s3 in List3) { string s = s1+s2+s3; } } } "Caroline" wrote in message news:%2****************@TK2MSFTNGP10.phx.gbl...I should add that the lists can be of different lengths to each other... Caroline "Caroline" wrote in message news:ee**************************@posting.google.c om...I need to write a method that accepts say three lists of strings and generates all possible combinations of strings from these lists in the order that the lists are provided. eg: list1 list2 list3 A B Z B C Y C D X The method would need to generate the following strings: ABZ ABY ABX ACZ ACY ACX ADZ ADY ADZ BBZ.... and so on up to CDX Can anyone help me? Nov 16 '05 #8

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