use pofk_algorithm::backtracking_algorithms::permutations::permutations;
#[test]
fn test_permutations_large() {
let nums = vec![1, 2, 3, 4];
let perms = permutations(&nums);
assert_eq!(perms.len(), 24);
let nums = vec![1, 2, 3];
let perms = permutations(&nums);
assert_eq!(perms.len(), 6);
}