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  2. 2,210 downloads per month Used in 8 crates (4 directly). MIT license . 15KB 173 lines. A Fenwick tree or binary indexed tree/bit indexed tree is a data structure that supports the following two operations efficiently over an array of numbers a[0..n]:. Calculate a prefix sum: a[0] + a[1] +... + a[i] Update one element: a[i] += delta With a naïve implementation, only one of the operations can ...
  3. fenwick-tree. An implementation of the binary indexed tree (or Fenwick tree) data structure in Rust. Overview. fenwick-tree provides a simple implementation of the Fenwick tree that can be used as a building block in some algorithms like weighted random. The basic API is simple and consists of add and sum methods (both take O(log n) time). Here ...
  4. May 9, 2024Slighly over-engineered Fenwick Tree implmentation. Allows efficient prefix sum calculation. Created for training purposes to test: rust typesystem, default trait implmentation, enums as a way for polymorphism; memory management and consumption of value; cargo tools, docs, tests, clippy and benchmarks, build and publish.
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