Function leetcode

47. Permutations II/src/main.rs:84–96

()

    #[test]
    fn leetcode() {
        assert_eq!(
            Solution::permute_unique(vec![2,2,1,1]),
            vec![
                vec![1,1,2,2],
                vec![1,2,1,2],
                vec![1,2,2,1],
                vec![2,1,1,2],
                vec![2,1,2,1],
                vec![2,2,1,1]
            ]
        );
    }
}