pub struct RollingHash {
    pub size: usize,
    /* private fields */
}
Expand description

ローリングハッシュ

文字列をハッシュし,連続部分列の一致判定を $O(1)$ で行う.

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§size: usize

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impl RollingHash

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pub fn build(arr: &[Modint], base: Modint) -> Self

初期化

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pub fn from_str(s: &str, base: Modint) -> Self

文字列から生成

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pub fn get(&self, l: usize, r: usize) -> Modint

l..rのハッシュを取得

  • 時間計算量: $O(1)$
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pub fn full(&self) -> Modint

0..sizeのハッシュを取得

  • 時間計算量: $O(1)$
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pub fn getLCP(&self, a: usize, b: usize) -> usize

a,bからの最長共通接頭辞の長さを調べる

  • 時間計算量: $O(\log N)$
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pub fn concat(&self, h1: Modint, h2: Modint, h2_len: usize) -> Modint

ハッシュ同士を連結

  • 時間計算量: $O(1)$

Trait Implementations§

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impl Debug for RollingHash

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · 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.

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

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V