Function malachite_base::tuples::exhaustive::lex_ordered_unique_pairs

pub const fn lex_ordered_unique_pairs<I: Iterator>(
    xs: I,
) -> LexOrderedUniquePairs<I> 
where
    I::Item: Clone,

This documentation applies not only to lex_ordered_unique_pairs, but also to lex_ordered_unique_triples, lex_ordered_unique_quadruples, and so on. See lex_ordered_unique_tuples for more information.

Generates $k$-tuples of elements from a single iterator, such that each tuple has no repeated elements, and the elements in each Vec are ordered the same way as they are in the source iterator.

The source iterator should not repeat any elements, but this is not enforced.

The order is lexicographic with respect to the order of the element iterator.

If the input iterator is infinite, the output length is also infinite.

If the input iterator length is $n$, the output length is $\binom{n}{k}$.

If xs is empty, the output is also empty.

Examples

See here.