cp_library_rs::data_structure::bit_2d

Struct BIT2D

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pub struct BIT2D<M: Monoid> {
    pub H: usize,
    pub W: usize,
    pub data: Vec<Vec<M::Val>>,
}

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§H: usize§W: usize§data: Vec<Vec<M::Val>>

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impl<M: Monoid> BIT2D<M>

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pub fn new(H: usize, W: usize) -> Self

2次元BITを作成する

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pub fn add(&mut self, r: usize, c: usize, v: M::Val)

位置 (r,c) に値 v を加算する

  • (r, c): 加算を行うインデックス（0-indexed）
  • x: 加算する値
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pub fn prefix_sum(&self, r: usize, c: usize) -> M::Val

左上からの和を求める

  • (r,c): 領域 0<=i<r, 0<=j<c に対しての総和（0-indexed）

Auto Trait Implementations§

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impl<M> Freeze for BIT2D<M>

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impl<M> RefUnwindSafe for BIT2D<M>
where <M as Monoid>::Val: RefUnwindSafe,

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impl<M> Send for BIT2D<M>
where <M as Monoid>::Val: Send,

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impl<M> Sync for BIT2D<M>
where <M as Monoid>::Val: Sync,

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impl<M> Unpin for BIT2D<M>
where <M as Monoid>::Val: Unpin,

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impl<M> UnwindSafe for BIT2D<M>
where <M as Monoid>::Val: UnwindSafe,

Blanket Implementations§

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

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fn borrow(&self) -> &T

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

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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

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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> IntoEither for T

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

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type Error = Infallible

The type returned in the event of a conversion error.
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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 T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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

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fn vzip(self) -> V