mayoff

// https://adventofcode.com/2022/day/23

import AOC
import Preamble

let input = readInput()
let xinput = """
....#..
..###.#
#...#.#

mayoff

import AppKit

public extension NSBezierPath {

    public var CGPath: CGPath {
        let path = CGMutablePath()
        var points = [CGPoint](repeating: .zero, count: 3)
        for i in 0 ..< self.elementCount {
            let type = self.element(at: i, associatedPoints: &points)
            switch type {

mayoff

    import SwiftUI
    import PlaygroundSupport

    struct EqualWidthKey: PreferenceKey {
        static var defaultValue: CGFloat? { nil }

        static func reduce(value: inout CGFloat?, nextValue: () -> CGFloat?) {
            switch (value, nextValue()) {
            case (_, nil): break
            case (nil, let next): value = next

mayoff

static CGPathRef createClosedPathWithPoints(const CGPoint *points, size_t count) {
    CGMutablePathRef path = CGPathCreateMutable();
    CGPathAddLines(path, NULL, points, count);
    CGPathCloseSubpath(path);
    return path;
}

static CGRect integralFrameForPath(CGPathRef path) {
    CGRect frame = CGPathGetBoundingBox(path);
    return CGRectIntegral(frame);

mayoff

// Swift 2.2 syntax / API

import UIKit

extension UIBezierPath {

    class func arrow(from start: CGPoint, to end: CGPoint, tailWidth: CGFloat, headWidth: CGFloat, headLength: CGFloat) -> Self {
        let length = hypot(end.x - start.x, end.y - start.y)
        let tailLength = length - headLength

mayoff

import SwiftUI

fileprivate struct IconWidthKey: PreferenceKey {
    static var defaultValue: CGFloat? { nil }

    static func reduce(value: inout CGFloat?, nextValue: () -> CGFloat?) {
        switch (value, nextValue()) {
        case (nil, let next): value = next
        case (_, nil): break
        case (.some(let current), .some(let next)): value = max(current, next)

mayoff

#if canImport(Combine)

import Combine
import CasePaths

@available(iOS 13.0, macOS 10.15, tvOS 13.0, watchOS 6.0, *)
public typealias Effect<Output> = AnyPublisher<Output, Never>

@available(iOS 13.0, macOS 10.15, tvOS 13.0, watchOS 6.0, *)
extension Effect {

mayoff

# https://twitter.com/hillelogram/status/1461103115260805123/photo/1
# https://pikchr.org/home/pikchrshow

linerad = 5px

B1: box "1"
B8: box "8"
B9: box "9"
B1_2: [ box; "1" color blue at last box ]
B2_2: [ box; "2" color blue at last box ]

mayoff

import SwiftUI

fileprivate struct WidthPreferenceKey: PreferenceKey {
    static var defaultValue: [AnyHashable: CGFloat] { [:] }

    static func reduce(value: inout [AnyHashable : CGFloat], nextValue: () -> [AnyHashable : CGFloat]) {
        value.merge(nextValue(), uniquingKeysWith: { max($0, $1) })
    }
}

mayoff

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.dqd.stop-simulator-spotlight</string>
    <key>ProcessType</key>
    <string>Background</string>
    <key>ProgramArguments</key>
    <array>