swift-algorithms
Commonly used sequence and collection algorithms for Swift (by apple)
advent-of-code
My Advent of Code answers (by tcsullivan)
Our great sponsors
swift-algorithms | advent-of-code | |
---|---|---|
26 | 25 | |
5,681 | 2 | |
1.3% | - | |
6.6 | 8.5 | |
about 5 hours ago | 4 months ago | |
Swift | Clojure | |
Apache License 2.0 | The Unlicense |
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 2023-12-10.
- -❄️- 2023 Day 11 Solutions -❄️-
- -❄️- 2023 Day 10 Solutions -❄️-
- -❄️- 2023 Day 9 Solutions -❄️-
- -❄️- 2023 Day 8 Solutions -❄️-
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-❄️- 2023 Day 7 Solutions -❄️-
https://github.com/tcsullivan/advent-of-code/tree/master/day7.
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-❄️- 2023 Day 6 Solutions -❄️-
Hey, Forth may have began development in the late 60s, but that hardly makes the language obsolete! It's super versatile yet terribly undervalued, and is absolutely worth checking out if you're not familiar with it. My goal is (and has been) to complete every day in Forth, see my repo for my solutions.
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[2022 Day 10] [Applesoft BASIC] I've got a message on the CRT!
Source code
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-🎄- 2022 Day 8 Solutions -🎄-
Annotated code and Visualization
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-🎄- 2022 Day 7 Solutions -🎄-
Annotated code and video of it running. Running my actual input took ~7 minutes.
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-🎄- 2022 Day 6 Solutions -🎄-
Annotated code for both parts
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.
advent_of_code
swift-evolution - This maintains proposals for changes and user-visible enhancements to the Swift Programming Language.
AdventOfCode - Solutions to Advent of Code programming puzzles.
spring-boot-demo - 🚀一个用来深入学习并实战 Spring Boot 的项目。
advent-of-code
swift-numerics - Advanced mathematical types and functions for Swift
AdventOfCode2022Julia - Advent of code 2022 done in julia.
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
aoc2022 - My solutions for Advent of Code 2022.
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
CC-AdventOfCode-2022
swift-algorithms vs v2ray-core
advent-of-code vs advent_of_code
swift-algorithms vs swift-evolution
advent-of-code vs AdventOfCode
swift-algorithms vs spring-boot-demo
advent-of-code vs advent-of-code
swift-algorithms vs swift-numerics
advent-of-code vs AdventOfCode2022Julia
swift-algorithms vs SpringBoot-Labs
advent-of-code vs aoc2022
swift-algorithms vs CS-Notes
advent-of-code vs CC-AdventOfCode-2022