FantasyCheese

class Node {
  Node(this.title, [this.children = const []]);

  final String title;
  final List<Node> children;
}

Node copy(Node n) {
  // create new object with data from old object
  return Node(

FantasyCheese

import 'package:flutter/material.dart';

void main() {
  runApp(
    MaterialApp(
      home: App(),
    ),
  );
}

FantasyCheese

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(MaterialApp(
    home: Scaffold(
      body: Center(
        child: Text("Please help me!!!"),
      ),
    ),

FantasyCheese

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(App());
}

class App extends StatelessWidget {
  final doubleListQueue = ["personalName", "carrierType", "email"];
  final tripleListQueue = ["companyName", "taxID", "email"];

FantasyCheese

import 'package:flutter/material.dart';
import 'dart:async';
import 'dart:math';

const originalMap = [
  [1,1,1,1,1,1,1,1,1,1,1,],
  [1,0,0,0,0,0,0,0,0,0,1,],
  [1,0,1,0,1,0,1,0,1,0,1,],
  [1,0,1,0,1,1,1,0,1,0,1,],
  [1,0,1,0,0,0,0,0,1,0,1,],

FantasyCheese

import 'dart:async';
import 'package:flutter_riverpod/all.dart';

final container = ProviderContainer(); // declare global ProviderContainer
final countProvider = StateProvider((ref) => 0); // declare providers anywhere

void main() {

  final ProviderSubscription<StateController<int>> subscription = container.listen(countProvider, didChange: (sub) { // listen from container
    print(sub.read().state);

FantasyCheese

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/all.dart';

final countProvider = StateProvider((ref) => 0); // declare providers anywhere
final clockProvider = StateProvider((ref) => DateTime.now());

void main() {
  runApp(ProviderScope(child: MyApp())); // add ProviderScope at top level
}

FantasyCheese

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

void main() {
  runApp(MultiProvider(
    providers: [
      ChangeNotifierProvider(create: (_) => Counter()),
      ChangeNotifierProvider(create: (_) => Clock())

FantasyCheese

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

void main() {
  runApp(ChangeNotifierProvider(
    create: (_) => Counter(),
    child: MyApp(),
  ));

FantasyCheese

import 'dart:async';

import 'package:flutter/material.dart';

void main() {
  runApp(CounterUpdater(
    child: MyApp(),
  ));
}