how to generate combination of number length 2 in asp.net c#












0














I have 1-9 digit number and want to generate probability (combination) of number without duplicate and with duplicate.



int array = {1, 2, 3, 4};


I need the output to be like this:



{1,2}{1,3}{1,4}{2,1}{2,3}{2,4}{3,1}{3,2}{3,4}{1,1}{2,2}{3,3}{4,4}





combinations permutation probability







share|improve this question
























  • Do you want {4,1}{4,2}{4,3} as well?
    – Joseph Wood
    Nov 12 '18 at 11:00


















0














I have 1-9 digit number and want to generate probability (combination) of number without duplicate and with duplicate.



int array = {1, 2, 3, 4};


I need the output to be like this:



{1,2}{1,3}{1,4}{2,1}{2,3}{2,4}{3,1}{3,2}{3,4}{1,1}{2,2}{3,3}{4,4}





combinations permutation probability







share|improve this question
























  • Do you want {4,1}{4,2}{4,3} as well?
    – Joseph Wood
    Nov 12 '18 at 11:00
















0












0








0







I have 1-9 digit number and want to generate probability (combination) of number without duplicate and with duplicate.



int array = {1, 2, 3, 4};


I need the output to be like this:



{1,2}{1,3}{1,4}{2,1}{2,3}{2,4}{3,1}{3,2}{3,4}{1,1}{2,2}{3,3}{4,4}





combinations permutation probability







share|improve this question















I have 1-9 digit number and want to generate probability (combination) of number without duplicate and with duplicate.



int array = {1, 2, 3, 4};


I need the output to be like this:



{1,2}{1,3}{1,4}{2,1}{2,3}{2,4}{3,1}{3,2}{3,4}{1,1}{2,2}{3,3}{4,4}





combinations permutation probability




combinations permutation probability






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 12 '18 at 10:44









Rahul Agarwal

2,19141027




2,19141027










asked Nov 12 '18 at 10:01









Vinay Maurya

14




14












  • Do you want {4,1}{4,2}{4,3} as well?
    – Joseph Wood
    Nov 12 '18 at 11:00




















  • Do you want {4,1}{4,2}{4,3} as well?
    – Joseph Wood
    Nov 12 '18 at 11:00


















Do you want {4,1}{4,2}{4,3} as well?
– Joseph Wood
Nov 12 '18 at 11:00






Do you want {4,1}{4,2}{4,3} as well?
– Joseph Wood
Nov 12 '18 at 11:00














1 Answer
1






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oldest

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0














Do something like this.



for(int i = 0 ; i < array.size() ; i ++){

for(int j = i + 1; j < array.size() ;j++)

 {

    int first = array[i];

    int second = array[j];

    //Do someting.

 }

}





share|improve this answer





















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    1 Answer
    1






    active

    oldest

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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    0














    Do something like this.



    for(int i = 0 ; i < array.size() ; i ++){
    
for(int j = i + 1; j < array.size() ;j++)
    
 {
    
    int first = array[i];
    
    int second = array[j];
    
    //Do someting.
    
 }
    
}





    share|improve this answer


























      0














      Do something like this.



      for(int i = 0 ; i < array.size() ; i ++){
      
for(int j = i + 1; j < array.size() ;j++)
      
 {
      
    int first = array[i];
      
    int second = array[j];
      
    //Do someting.
      
 }
      
}





      share|improve this answer
























        0












        0








        0






        Do something like this.



        for(int i = 0 ; i < array.size() ; i ++){
        
for(int j = i + 1; j < array.size() ;j++)
        
 {
        
    int first = array[i];
        
    int second = array[j];
        
    //Do someting.
        
 }
        
}





        share|improve this answer












        Do something like this.



        for(int i = 0 ; i < array.size() ; i ++){
        
for(int j = i + 1; j < array.size() ;j++)
        
 {
        
    int first = array[i];
        
    int second = array[j];
        
    //Do someting.
        
 }
        
}






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 12 '18 at 10:50









        Bruce Chen

        944




        944






























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