swift-algorithms
Commonly used sequence and collection algorithms for Swift (by apple)
advent-of-code
All my advent of code projects (by snowe2010)
swift-algorithms | advent-of-code | |
---|---|---|
26 | 13 | |
5,693 | 1 | |
0.6% | - | |
6.4 | 7.4 | |
7 days ago | 5 months ago | |
Swift | Ruby | |
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.
advent-of-code
Posts with mentions or reviews of advent-of-code.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-12-08.
- -❄️- 2023 Day 9 Solutions -❄️-
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-❄️- 2023 Day 8 Solutions -❄️-
here is my solution. https://github.com/snowe2010/advent-of-code/blob/master/ruby_aoc/2023/day08/day08.rb
- -❄️- 2023 Day 7 Solutions -❄️-
- -🎄- 2022 Day 5 Solutions -🎄-
- -🎄- 2022 Day 4 Solutions -🎄-
- -🎄- 2022 Day 3 Solutions -🎄-
- -🎄- 2022 Day 1 Solutions -🎄-
- -🎄- 2021 Day 8 Solutions -🎄-
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-🎄- 2021 Day 4 Solutions -🎄-
github
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-🎄- 2021 Day 3 Solutions -🎄-
very messy part 1 and I'm embarrassed by part 2, but you can view it on github:
What are some alternatives?
When comparing swift-algorithms and advent-of-code you can also consider the following projects:
v2ray-core - A platform for building proxies to bypass network restrictions.
aocgen - A Golang tool for generating code for Advent of Code
swift-evolution - This maintains proposals for changes and user-visible enhancements to the Swift Programming Language.
cl-ppcre - Common Lisp regular expression library
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
aoc - Advent of Code
swift-numerics - Advanced mathematical types and functions for Swift
aoc2022-zig - I Don't Actually Know Zig At all
spring-boot-demo - 🚀一个用来深入学习并实战 Spring Boot 的项目。
advent-of-code
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
advent-of-code-2022
swift-algorithms vs v2ray-core
advent-of-code vs aocgen
swift-algorithms vs swift-evolution
advent-of-code vs cl-ppcre
swift-algorithms vs SpringBoot-Labs
advent-of-code vs aoc
swift-algorithms vs swift-numerics
advent-of-code vs aoc2022-zig
swift-algorithms vs spring-boot-demo
advent-of-code vs advent-of-code
swift-algorithms vs CS-Notes
advent-of-code vs advent-of-code-2022