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FenwickTree

ac_lib::structure::fenwick

Struct FenwickTree 

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pub struct FenwickTree { /* private fields */ }

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impl FenwickTree

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pub fn new(size: usize) -> Self

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pub fn from_vec(arr: &[i64]) -> Self

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pub fn add(&mut self, index: usize, value: i64)

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pub fn sum(&self, index: usize) -> i64

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pub fn range_sum(&self, left: usize, right: usize) -> i64

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pub fn get(&self, index: usize) -> i64

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pub fn set(&mut self, index: usize, value: i64)

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