[−][src]Struct competitive_programming_rs::data_structure::fenwick_tree::fenwick_tree::FenwickTree

pub struct FenwickTree<T> { /* fields omitted */ }

FenwickTree is a data structure that can efficiently update elements and calculate prefix sums in a table of numbers. https://en.wikipedia.org/wiki/Fenwick_tree

Implementations

impl<T: Copy + AddAssign + Sub<Output = T>> FenwickTree<T>[src]

pub fn new(size: usize, init: T) -> FenwickTree<T>[src]

Constructs a new FenwickTree. The size of FenwickTree should be specified by size.

pub fn add(&mut self, k: usize, value: T)[src]

pub fn sum(&self, l: usize, r: usize) -> T[src]

Returns a sum of range [l, r)

pub fn sum_one(&self, k: usize) -> T[src]

Returns a sum of range [0, k)

Auto Trait Implementations

impl<T> RefUnwindSafe for FenwickTree<T> where
    T: RefUnwindSafe, 

impl<T> Send for FenwickTree<T> where
    T: Send, 

impl<T> Sync for FenwickTree<T> where
    T: Sync, 

impl<T> Unpin for FenwickTree<T> where
    T: Unpin, 

impl<T> UnwindSafe for FenwickTree<T> where
    T: UnwindSafe, 

Blanket Implementations

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

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

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

The type returned in the event of a conversion error.