All Algorithms implemented in Rust
This report summarizes scanner evidence for TheAlgorithms/Rust, a Rust project with 26,080 GitHub stars. SynthScan examined 62,960 lines of code across 441 source files, recording 384 pattern matches distributed across 5 syntactic categories. The legacy adjusted pattern signal is 7.6 (Moderate pattern signal); it is not an authorship estimate.
Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.
Use each vector to guide manual verification of the underlying findings.
Can maintainers explain intent, assumptions, and trade-offs? 332 finding(s).
Are imports declared and package/API names verified? 14 finding(s).
Are wrappers, guards, and repeated structures necessary? 38 finding(s).
Which changes need focused human review? 384 finding(s).
This chart tracks the legacy adjusted pattern score across scan runs. Changes can reflect source changes, scan coverage, or detector/scoring versions; they do not measure AI adoption or prove that a team refactored code. Compare runs only when their scoring versions are compatible. The dashed line tracks the raw pattern-hit count.
Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.
This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.
The scanner identified 384 distinct pattern matches across 5 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.
Reading the findings table: The Severity column indicates the configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | src/data_structures/segment_tree_recursive.rs | 81 | /// | COMMENT |
| LOW | src/data_structures/segment_tree_recursive.rs | 121 | match (left_res, right_res) { | COMMENT |
| LOW | src/data_structures/fenwick_tree.rs | 21 | IndexOutOfBounds, | COMMENT |
| LOW | src/data_structures/fenwick_tree.rs | 41 | /// A new `FenwickTree` instance. | COMMENT |
| LOW | src/data_structures/fenwick_tree.rs | 101 | COMMENT | |
| LOW | src/data_structures/fenwick_tree.rs | 121 | let left_query = if left == 0 { | COMMENT |
| LOW | src/data_structures/fenwick_tree.rs | 161 | /// desired value and the current value, then applying that difference using `update`. | COMMENT |
| LOW | src/data_structures/fenwick_tree.rs | 181 | /// | COMMENT |
| LOW | src/data_structures/heap.rs | 1 | //! A generic heap data structure. | COMMENT |
| LOW | src/data_structures/heap.rs | 21 | COMMENT | |
| LOW | src/data_structures/heap.rs | 161 | } else { | COMMENT |
| LOW | src/data_structures/heap.rs | 221 | /// | COMMENT |
| LOW | src/data_structures/stack_using_singly_linked_list.rs | 101 | /// With the help of the ownership mechanism, the type `List` will be cleaned up automatically (dropped) after it goes o | COMMENT |
| LOW | src/data_structures/trie.rs | 1 | //! This module provides a generic implementation of a Trie (prefix tree). | COMMENT |
| LOW | src/data_structures/segment_tree.rs | 61 | } | COMMENT |
| LOW | src/data_structures/segment_tree.rs | 101 | left /= 2; | COMMENT |
| LOW | src/data_structures/range_minimum_query.rs | 1 | //! Range Minimum Query (RMQ) Implementation | COMMENT |
| LOW | src/data_structures/range_minimum_query.rs | 21 | } | COMMENT |
| LOW | src/data_structures/range_minimum_query.rs | 41 | /// A `RangeMinimumQuery` instance that can be used to perform range minimum queries. | COMMENT |
| LOW | src/data_structures/probabilistic/count_min_sketch.rs | 1 | use std::collections::hash_map::RandomState; | COMMENT |
| LOW | src/data_structures/probabilistic/count_min_sketch.rs | 21 | fn increment_by(&mut self, item: Self::Item, count: usize); | COMMENT |
| LOW | src/data_structures/probabilistic/count_min_sketch.rs | 41 | /// <- WIDTH = 5 -> | COMMENT |
| LOW | src/data_structures/probabilistic/count_min_sketch.rs | 61 | /// E hash2: [0, 1, 0, 0, 0] | COMMENT |
| LOW | src/data_structures/probabilistic/bloom_filter.rs | 1 | use std::collections::hash_map::{DefaultHasher, RandomState}; | COMMENT |
| LOW | src/data_structures/probabilistic/bloom_filter.rs | 81 | } | COMMENT |
| LOW | src/bit_manipulation/swap_odd_even_bits.rs | 1 | /// Swaps odd and even bits in an integer. | COMMENT |
| LOW | src/bit_manipulation/swap_odd_even_bits.rs | 21 | /// assert_eq!(swap_odd_even_bits(2), 1); | COMMENT |
| LOW | src/bit_manipulation/find_unique_number.rs | 1 | /// Finds the unique number in a slice where every other element appears twice. | COMMENT |
| LOW | src/bit_manipulation/n_bits_gray_code.rs | 1 | /// Custom error type for Gray code generation. | COMMENT |
| LOW | src/bit_manipulation/reverse_bits.rs | 1 | //! This module provides a function to reverse the bits of a 32-bit unsigned integer. | COMMENT |
| LOW | src/bit_manipulation/reverse_bits.rs | 21 | //! O(1) - Uses a constant amount of extra space | COMMENT |
| LOW | src/bit_manipulation/reverse_bits.rs | 41 | /// A 32-bit unsigned integer with bits in reverse order | COMMENT |
| LOW | src/bit_manipulation/binary_coded_decimal.rs | 1 | //! Binary Coded Decimal (BCD) conversion | COMMENT |
| LOW | src/bit_manipulation/binary_coded_decimal.rs | 21 | /// | COMMENT |
| LOW | src/bit_manipulation/binary_coded_decimal.rs | 41 | /// | COMMENT |
| LOW | src/bit_manipulation/find_previous_power_of_two.rs | 1 | //! Previous Power of Two | COMMENT |
| LOW | src/bit_manipulation/find_previous_power_of_two.rs | 21 | /// | COMMENT |
| LOW | src/bit_manipulation/find_previous_power_of_two.rs | 41 | /// assert_eq!(find_previous_power_of_two(8).unwrap(), 8); | COMMENT |
| LOW | src/bit_manipulation/rightmost_set_bit.rs | 1 | /// Finds the index (position) of the rightmost set bit in a number. | COMMENT |
| LOW | src/bit_manipulation/rightmost_set_bit.rs | 21 | /// | COMMENT |
| LOW | src/bit_manipulation/sum_of_two_integers.rs | 1 | //! This module provides a function to add two integers without using the `+` operator. | COMMENT |
| LOW | src/bit_manipulation/find_missing_number.rs | 1 | /// Finds the missing number in a slice of consecutive integers. | COMMENT |
| LOW | src/bit_manipulation/highest_set_bit.rs | 1 | //! This module provides a function to find the position of the most significant bit (MSB) | COMMENT |
| LOW | src/bit_manipulation/counting_bits.rs | 1 | //! This module implements a function to count the number of set bits (1s) | COMMENT |
| LOW | src/bit_manipulation/twos_complement.rs | 1 | //! Two's Complement Representation | COMMENT |
| LOW | src/bit_manipulation/twos_complement.rs | 21 | /// A `Result` containing: | COMMENT |
| LOW | src/bit_manipulation/binary_count_trailing_zeros.rs | 1 | /// Counts the number of trailing zeros in the binary representation of a number | COMMENT |
| LOW | src/bit_manipulation/binary_count_trailing_zeros.rs | 21 | pub fn binary_count_trailing_zeros(num: u64) -> u32 { | COMMENT |
| LOW | src/bit_manipulation/hamming_distance.rs | 1 | //! Hamming Distance | COMMENT |
| LOW | src/bit_manipulation/hamming_distance.rs | 41 | /// | COMMENT |
| LOW | src/bit_manipulation/hamming_distance.rs | 61 | } | COMMENT |
| LOW | src/bit_manipulation/binary_shifts.rs | 1 | //! Binary Shift Operations | COMMENT |
| LOW | src/bit_manipulation/binary_shifts.rs | 21 | //! | COMMENT |
| LOW | src/bit_manipulation/binary_shifts.rs | 41 | /// | COMMENT |
| LOW | src/bit_manipulation/binary_shifts.rs | 61 | let zeros = "0".repeat(shift_amount as usize); | COMMENT |
| LOW | src/bit_manipulation/binary_shifts.rs | 81 | /// | COMMENT |
| LOW | src/bit_manipulation/binary_shifts.rs | 101 | } | COMMENT |
| LOW | src/bit_manipulation/binary_shifts.rs | 121 | /// ``` | COMMENT |
| LOW | src/bit_manipulation/binary_shifts.rs | 201 | /// # Arguments | COMMENT |
| LOW | src/bit_manipulation/is_power_of_two.rs | 1 | //! Power of Two Check | COMMENT |
| 266 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM⚡ | src/financial/depreciation.rs | 427 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | src/financial/depreciation.rs | 429 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | src/financial/depreciation.rs | 435 | // ── Straight-line ──────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 23 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 25 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 63 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 65 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 84 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 86 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 137 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 139 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 205 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 207 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 282 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 284 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 348 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 350 | // ───────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 496 | // ── Diminishing balance ────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 537 | // ── Units-of-production ────────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 577 | // ── Sum-of-years' digits ───────────────────────────────── | COMMENT |
| MEDIUM | src/financial/depreciation.rs | 637 | // ── Double-declining balance ───────────────────────────── | COMMENT |
| MEDIUM | src/machine_learning/optimization/adam.rs | 126 | // ── Initialisation ──────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/machine_learning/optimization/adam.rs | 206 | // ── Step: standard Adam (weight_decay = 0.0) ────────────────────────────── | COMMENT |
| MEDIUM | src/machine_learning/optimization/adam.rs | 266 | // ── Step: AdamW (weight_decay > 0.0) ───────────────────────────────────── | COMMENT |
| MEDIUM⚡ | src/machine_learning/optimization/adam.rs | 323 | // ── Step: shared edge cases ─────────────────────────────────────────────── | COMMENT |
| MEDIUM⚡ | src/machine_learning/optimization/adam.rs | 332 | // ── Convergence (slow; marked #[ignore]) ───────────────────────────────── | COMMENT |
| MEDIUM⚡ | src/machine_learning/optimization/adam.rs | 332 | // ── Convergence (slow; marked #[ignore]) ───────────────────────────────── | COMMENT |
| MEDIUM | src/hashing/sha1.rs | 156 | // ── NIST FIPS 180-4 / RFC 3174 test vectors ────────────────────────────── | COMMENT |
| MEDIUM | src/hashing/sha2.rs | 25 | // ── SHA-256 / SHA-224 ──────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/hashing/sha2.rs | 153 | // ── SHA-512 / SHA-384 / SHA-512/224 / SHA-512/256 ─────────────────────────── | COMMENT |
| MEDIUM | src/hashing/sha2.rs | 305 | // ── Tests ──────────────────────────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/hashing/sha2.rs | 323 | // ── Constant correctness ───────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/hashing/sha2.rs | 356 | // ── SHA-256 (FIPS 180-4) ───────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/hashing/sha2.rs | 394 | // ── SHA-224 (FIPS 180-4) ───────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/hashing/sha2.rs | 429 | // ── SHA-512 (FIPS 180-4) ───────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/hashing/sha2.rs | 468 | // ── SHA-384 (FIPS 180-4) ───────────────────────────────────────────────── | COMMENT |
| MEDIUM | src/hashing/sha2.rs | 504 | // ── SHA-512/256 (FIPS 180-4) ───────────────────────────────────────────── | COMMENT |
| MEDIUM | src/hashing/sha2.rs | 530 | // ── SHA-512/224 (FIPS 180-4) ───────────────────────────────────────────── | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW⚡ | src/general/huffman_encoding.rs | 351 | "Lorem ipsum dolor sit amet, consectetur ", | CODE |
| LOW⚡ | src/general/huffman_encoding.rs | 351 | "Lorem ipsum dolor sit amet, consectetur ", | CODE |
| LOW⚡ | src/general/huffman_encoding.rs | 355 | "nullam vehicula. Interdum posuere lorem ipsum dolor. Elit eget ", | CODE |
| LOW | src/ciphers/base64.rs | 250 | test_e_d!(b"Lorem Ipsum sit dolor amet."); | CODE |
| LOW⚡ | src/ciphers/vigenere.rs | 59 | "Lorem ipsum dolor sit amet, consectetur adipiscing elit.", | CODE |
| LOW⚡ | src/ciphers/vigenere.rs | 59 | "Lorem ipsum dolor sit amet, consectetur adipiscing elit.", | CODE |
| LOW⚡ | src/ciphers/vigenere.rs | 69 | vigenere("1 Lorem ⏳ ipsum dolor sit amet Ѡ", "unicode"), | CODE |
| LOW⚡ | src/ciphers/vigenere.rs | 77 | vigenere("Lorem ipsum dolor sit amet", "😉 key!"), | CODE |
| LOW⚡ | src/ciphers/vigenere.rs | 77 | vigenere("Lorem ipsum dolor sit amet", "😉 key!"), | CODE |
| LOW⚡ | src/ciphers/vigenere.rs | 84 | assert_eq!(vigenere("Lorem ipsum", ""), "Lorem ipsum"); | CODE |
| LOW⚡ | src/string/z_algorithm.rs | 185 | "lorem ipsum dolor sit amet, consectetur ", | CODE |
| LOW⚡ | src/string/z_algorithm.rs | 185 | "lorem ipsum dolor sit amet, consectetur ", | CODE |
| LOW⚡ | src/string/z_algorithm.rs | 194 | "lorem ipsum dolor sit amet, consectetur ", | CODE |
| LOW⚡ | src/string/z_algorithm.rs | 194 | "lorem ipsum dolor sit amet, consectetur ", | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | src/data_structures/probabilistic/bloom_filter.rs | 54 | /// Can we improve it? Certainly, in different ways. | COMMENT |
| MEDIUM | …hine_learning/loss_function/mean_squared_error_loss.rs | 4 | //! robust loss function used in machine learning. | COMMENT |
| MEDIUM | …ine_learning/loss_function/mean_absolute_error_loss.rs | 4 | //! robust loss function used in machine learning. | COMMENT |
| MEDIUM | src/math/huber_loss.rs | 3 | //! The `huber_loss` function calculates the Huber loss, which is a robust loss function used in machine learning, parti | COMMENT |
| MEDIUM | src/math/huber_loss.rs | 18 | //! This implementation takes two references to vectors of f64 values, `actual` and `predicted`, and a `delta` value. It | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | src/math/elliptic_curve.rs | 110 | // TODO: implement counting for big P | COMMENT |