jakmir

import Foundation
import UIKit

class Node<T>: CustomStringConvertible {
    let value: T
    var next: Node<T>?
    
    init(value: T, next: Node<T>? = nil) {
        self.value = value
        self.next = next

jakmir

/*
  Sliding Puzzle
*/

class Node<T> {
    let value: T
    var next: Node<T>?
    
    init(with value: T, next: Node<T>? = nil) {
        self.value = value

jakmir

/// Place N queens on the chessboard. As a result, no two queens are attacking each other.

enum QueenPuzzleSolverError: Error {
    case negativeSize
}

class QueenPuzzleSolver {
    
    private var route: [Int] = []
    private var solutionList: [[Int]] = []