algorithm - How to choose all possible combinations?

Question

Let's assume that we have the list of loans user has like below:

• loan1
• loan2
• loan3
• ...
• loan10

And we have the function which can accept from 2 to 10 loans: function(loans). For ex., the following is possible:

• function(loan1, loan2)
• function(loan1, loan3)
• function(loan1, loan4)
• function(loan1, loan2, loan3)
• function(loan1, loan2, loan4)
• function(loan1, loan2, loan3, loan4, loan5, loan6, loan7, loan8, loan9, loan10)

How to write the code to pass all possible combinations to that function?

Answer 1

On RosettaCode you have implemented generating combinations in many languages, choose yourself.