felix-larsen

import SwiftUI
import PhotosUI

struct CustomPhotoPickerView: UIViewControllerRepresentable {
        
    @Binding var selectedImage: UIImage?
    @Binding var date: Date?
    @Binding var location: CLLocationCoordinate2D?
    
    @Environment(\.presentationMode) var presentationMode

felix-larsen

for i in 0...data.count-1 {
    for a in i...data.count-1 {
        if(data[i] + data[a] == 2020) {
            print("Result \(data[i] * data[a])")
        }
    }
}

felix-larsen

let validPasswordsCount = passwords
    .map { password -> DataEntry in
        let substrings = password.split(separator: " ")
        let minMaxSub = substrings[0].split(separator: "-")
        return DataEntry(min: Int(minMaxSub[0])!, max: Int(minMaxSub[1])!, char: substrings[1].first!, password: String(substrings[2]))
    }
    .filter(isValid_1)
    .count
print(validPasswordsCount)

felix-larsen

let treeCount = countTrees(in: lines, dX: 3, dY: 1)
print(treeCount)

felix-larsen

var validPassportsCount = 0
let keys: [String] = [
    "ecl",
    "pid",
    "eyr",
    "hcl",
    "byr",
    "iyr",
    "hgt"
]

felix-larsen

let filename = "/Users/felix/xCodeProjects/AdventOfCode2020.playground/Resources/december05.txt"
let contents = try! String(contentsOfFile: filename)
let lines = contents.components(separatedBy: CharacterSet.newlines)

let seats = lines.compactMap { seatString -> Seat? in
    if seatString.isEmpty {
        return nil
    }
    let rowEndIndex = seatString.index(seatString.startIndex, offsetBy: 7)
    let binaryRowString = String(seatString[..<rowEndIndex].map { (char) -> Character in

felix-larsen

let solution = solve(lines, isFirstPuzzle: true)
print(solution)

felix-larsen

var list = listBagsContaining(with: bagMap, withBagName: "shinygold", allBagNames: [String]())

func listBagsContaining(with bags: [String : [Bag]], withBagName bagName: String, allBagNames: [String]) -> [String] {
    let containingBagNames = bags.filter {
        key, value in
        value.map({ $0.name}).contains(bagName)
    }
    .compactMap { $0.key }
    if containingBagNames.count == 0 {
        return allBagNames + [bagName]

felix-larsen

print(runInstructions(lines: lines))

felix-larsen

let preamble = 25

var solution1 = -1
for i in 0..<numbers.count {
    if !checkThatAnyNumbers(in: Array(numbers[i..<preamble + i]), sumTo: numbers[preamble + i]) {
        solution1 = numbers[preamble + i]
        break
    }
}