swift-algorithms
Commonly used sequence and collection algorithms for Swift (by apple)
AoC
Advent of Code (by Marterich)
swift-algorithms | AoC | |
---|---|---|
26 | 13 | |
5,708 | 1 | |
0.9% | - | |
6.4 | 5.2 | |
12 days ago | 6 months ago | |
Swift | Python | |
Apache License 2.0 | - |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
swift-algorithms
Posts with mentions or reviews of swift-algorithms.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-12-10.
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-❄️- 2023 Day 11 Solutions -❄️-
While you are correct about the stdlib, check out swift-algorithms (https://github.com/apple/swift-algorithms). It's written by Apple and has several interesting methods.
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Do you use algorithms in Swift?
We used Swift Algorithms once or twice. It just depends on the app. I suggest starting with the WWDC video.
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Checking the largest values in an arrary
Install swift-algorithms and use min/max(count:by:)
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-🎄- 2022 Day 6 Solutions -🎄-
#!/usr/bin/env swift sh import Algorithms // https://github.com/apple/swift-algorithms struct StandardInput: Sequence, IteratorProtocol { func next() -> String? { return readLine() } } func markerEnd(for signal: String, markerLength: Int) -> Int { return Array(signal.windows(ofCount: markerLength)) .firstIndex { Set($0).count == markerLength }! + markerLength } let signals = StandardInput().compactMap { $0 } let part1 = signals.map { markerEnd(for: $0, markerLength: 4)}.reduce(0, +) let part2 = signals.map { markerEnd(for: $0, markerLength: 14)}.reduce(0, +) print("part 1 : \(part1)") print("part 2 : \(part2)")
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-🎄- 2022 Day 5 Solutions -🎄-
#!/usr/bin/env swift sh import Algorithms // https://github.com/apple/swift-algorithms typealias Label = Character typealias Instruction = (amount: Int, source: Int, destination: Int) struct StandardInput: Sequence, IteratorProtocol { func next() -> String? { return readLine(strippingNewline: false) } } let sections = StandardInput() .compactMap { $0 } .split(separator: "\n") .map { Array($0) } let stacks = parseStacks(from: sections[0]) let instructions = parseInstructions(from: sections[1]) print(apply(instructions, to: stacks, oneAtATime: true)) print(apply(instructions, to: stacks, oneAtATime: false)) // MARK: - Private private func parseStacks(from section: [String]) -> [[Label]] { let crates = section.map { let start = $0.index($0.startIndex, offsetBy: 1) return Array($0.suffix(from: start).striding(by: 4)) } let stackCount = crates[0].count var stacks: [[Label]] = Array(repeating: [Label](), count: stackCount) crates.reversed().forEach { for (index, label) in $0.enumerated() { stacks[index].append(label) } } return stacks.map { $0.filter { $0.isLetter } } } private func parseInstructions(from section: [String]) -> [Instruction] { return section.map { let tokens = $0.dropLast().split(separator: " ") return (Int(tokens[1])!, Int(tokens[3])! - 1, Int(tokens[5])! - 1) } } private func apply( _ instructions: [Instruction], to stacks: [[Label]], oneAtATime: Bool ) -> String { var stacks = stacks instructions.forEach { let cargo = Array(stacks[$0.source].suffix($0.amount)) stacks[$0.source] = stacks[$0.source].dropLast($0.amount) stacks[$0.destination].append( contentsOf: oneAtATime ? cargo.reversed() : cargo ) } return String(stacks.map { $0.last! }) }
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-🎄- 2022 Day 3 Solutions -🎄-
Swift. Algorithms contains chunks(ofCount: 3) but I had to write chunks(totalCount:) myself.
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-🎄- 2022 Day 1 Solutions -🎄-
Algorithms has `max(count:)` now. 💻🖥️
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foursum?
Create windows of 4 elements.
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Understanding algorithms
There is also a swift algorithm package that’s a precursor to the standard library if you want to examine legit implementation built into Swift.
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-🎄- 2021 Day 1 Solutions -🎄-
I used Algorithms and took inspiration from Kotlin with it's zipWithNext function.
AoC
Posts with mentions or reviews of AoC.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-12-05.
- -🎄- 2022 Day 6 Solutions -🎄-
- -🎄- 2022 Day 5 Solutions -🎄-
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-🎄- 2022 Day 4 Solutions -🎄-
https://github.com/Marterich/AoC/blob/main/2022/day04/solve.py ```
- -🎄- 2022 Day 3 Solutions -🎄-
- -🎄- 2022 Day 2 Solutions -🎄-
- -🎄- 2022 Day 1 Solutions -🎄-
- -🎄- 2021 Day 11 Solutions -🎄-
- -🎄- 2021 Day 10 Solutions -🎄-
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-🎄- 2021 Day 6 Solutions -🎄-
https://github.com/Marterich/AoC/blob/main/2021/day06/solve.py
- -🎄- 2021 Day 4 Solutions -🎄-
What are some alternatives?
When comparing swift-algorithms and AoC you can also consider the following projects:
v2ray-core - A platform for building proxies to bypass network restrictions.
adventOfCode2022
swift-evolution - This maintains proposals for changes and user-visible enhancements to the Swift Programming Language.
adventOfCode2022
SpringBoot-Labs - 一个涵盖六个专栏:Spring Boot 2.X、Spring Cloud、Spring Cloud Alibaba、Dubbo、分布式消息队列、分布式事务的仓库。希望胖友小手一抖,右上角来个 Star,感恩 1024
advent-of-code-2022-rust - My Rust advent of code 2022 solutions
swift-numerics - Advanced mathematical types and functions for Swift
advent-of-code - All my advent of code projects
spring-boot-demo - 🚀一个用来深入学习并实战 Spring Boot 的项目。
adventofrust - advent of code in rust
CS-Notes - :books: 技术面试必备基础知识、Leetcode、计算机操作系统、计算机网络、系统设计
aoc - Advent of Code
swift-algorithms vs v2ray-core
AoC vs adventOfCode2022
swift-algorithms vs swift-evolution
AoC vs adventOfCode2022
swift-algorithms vs SpringBoot-Labs
AoC vs advent-of-code-2022-rust
swift-algorithms vs swift-numerics
AoC vs advent-of-code
swift-algorithms vs spring-boot-demo
AoC vs adventofrust
swift-algorithms vs CS-Notes
AoC vs aoc