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DifferenceArray

oxilean_std::array::types

Struct DifferenceArray 

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pub struct DifferenceArray { /* private fields */ }
Expand description

Difference array for O(1) range-update, O(n) reconstruction.

Supports range additions: add val to all elements in [lo, hi].

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impl DifferenceArray

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pub fn build(data: &[i64]) -> Self

Build a difference array from an initial data slice.

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pub fn range_add(&mut self, lo: usize, hi: usize, val: i64)

Add val to all elements in the inclusive range [lo, hi].

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pub fn reconstruct(&self) -> Vec<i64>

Reconstruct the full array from the difference array.

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