Struct LCA

Source
pub struct LCA { /* private fields */ }
Expand description

LCA

  • 最小共通祖先を求めるクエリに答える

Implementations§

Source§

impl LCA

Source

pub fn new(tree: &Vec<Vec<usize>>, root: usize) -> Self

rootを根に持つ木treeで、初期化を行う

Source

pub fn depth(&self, v: usize) -> usize

頂点 v の深さを求める

Source

pub fn parent(&self, v: usize) -> Option<usize>

頂点 v の親を求める

Source

pub fn lca(&self, u: usize, v: usize) -> usize

頂点 u,v の最小共通祖先を求める

Source

pub fn dist(&self, u: usize, v: usize) -> usize

頂点 u,v の距離を求める

Source

pub fn kth_ancestor(&self, v: usize, k: usize) -> Option<usize>

頂点 v の k 個上の祖先を求める

Source

pub fn kth_on_path(&self, u: usize, v: usize, k: usize) -> Option<usize>

頂点 u から v へ向かうパス上の k 個目の頂点を求める

Auto Trait Implementations§

§

impl Freeze for LCA

§

impl RefUnwindSafe for LCA

§

impl Send for LCA

§

impl Sync for LCA

§

impl Unpin for LCA

§

impl UnwindSafe for LCA

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> IntoEither for T

Source§

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

§

fn vzip(self) -> V