Function malachite_base::vecs::random::random_unique_vecs_fixed_length

pub fn random_unique_vecs_fixed_length<I: Iterator>(
    len: u64,
    xs: I
) -> RandomUniqueVecsFixedLength<I> where
    I::Item: Eq + Hash,

Randomly generates Vecs of a given length, where the Vecs have no repeated elements.

The input iterator must generate at least len distinct elements; otherwise, this iterator will hang.

If len is 0, the output consists of the empty list, repeated.

xs must be infinite.

Examples

use itertools::Itertools;
use malachite_base::num::random::random_unsigned_inclusive_range;
use malachite_base::random::EXAMPLE_SEED;
use malachite_base::vecs::random::random_unique_vecs_fixed_length;

let xss = random_unique_vecs_fixed_length(
    2,
    random_unsigned_inclusive_range::<u32>(EXAMPLE_SEED, 1, 100),
)
.take(10)
.collect_vec();
assert_eq!(
    xss.iter().map(Vec::as_slice).collect_vec().as_slice(),
    &[
        &[95, 24],
        &[99, 71],
        &[93, 53],
        &[85, 34],
        &[48, 2],
        &[55, 11],
        &[48, 18],
        &[90, 93],
        &[67, 93],
        &[93, 95]
    ]
);