extern crate rayon;
extern crate rand;
// #[stable(feature = "rust1", since = "1.0.0")]
pub use HashMap;
// #[stable(feature = "rust1", since = "1.0.0")]
pub use HashSet;
// #[stable(feature = "rust1", since = "1.0.0")]
// #[stable(feature = "rust1", since = "1.0.0")]