logic02.dart

import 'dart:math';

var Knave = false;
var Knight = true;

bool lie(bool i) { return !i; }
String islanderToString(bool i) { return i == Knight ? "Knight" : "Knave"; }
String whisperToString(bool w) { return w ? "Yes" : "No"; }
String t(bool n) { return n ? "tells the truth" : "lies"; }

void main() {
  var r = Random();
  List<bool> islander = [Knight, Knight, Knight, Knight, Knight, Knave, Knave, Knave, Knave, Knave];

  islander.shuffle();
  bool firstIslander = r.nextInt(2) == 0 ? Knave : Knight;
  islander.insert(0, firstIslander);

  print("If I asked you if you were a Knight, what would you say?\n");

  bool w = true;
  
  for (var i in islander) {
    var a = "${islanderToString(i)}";
    w = i == Knight ? w : lie(w);
    print("${a} => ${whisperToString(w)}");
  };

  print("\nThe last islander says \"${whisperToString(w)}\".");
  print("We deduce that the first islander is a ${islanderToString(!w)}.");
}