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# Binary Permutations

## Binary Permutations

(OP)
Hello everyone,

I'm new with prolog and I don't have any clue about it. Does someone know how to write binary permutations with a const number of 1? For example all 9 bit words with 5 ones. I would be thankful for all help.
Replies continue below

### RE: Binary Permutations

hi

perhaps you need  random sequences of the same word

### RE: Binary Permutations

what you need is a predicate of shuffle. there are many

### RE: Binary Permutations

this solution is something incompleted

permutation([ ],[ ]).
permutation( [X | L] , P ):-permutation(L,L1),add (X, L1, [ L1 | P ]).

:-permutation([0,1,1,0,1,1,1,0],L).

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