int sumOfEvenNumbers(List numbers) {
int sum = 0;
for (int number in numbers) {
if (number.isEven) {
sum += number;
}
}
return sum;
}

void main() {
print(‘Enter a list of numbers separated by spaces:’);
String? input = stdin.readLineSync();
List numbers = input!.split(‘ ‘).map(int.parse).toList();

int result = sumOfEvenNumbers(numbers);
print(‘The sum of even numbers is: $result’);
}

function sumOfEvenNumbers(numbers) {
let sum = 0;
for (let number of numbers) {
if (number % 2 === 0) {
sum += number;
}
}
return sum;
}

function main() {
console.log(‘Enter a list of numbers separated by spaces:’);
let input = readlineSync.question();
let numbers = input.split(‘ ‘).map(Number);

let result = sumOfEvenNumbers(numbers);
console.log(`The sum of even numbers is: ${result}`);
}

main();

class Room {
String description;
Map exits = {};
List items = [];

Room(this.description);

void setExit(String direction, Room room) {
exits[direction] = room;
}
}

class Game {
Room currentRoom;

Game(this.currentRoom);

void play() {
print(“Welcome to the Adventure Game!”);
while (true) {
print(“n${currentRoom.description}”);
print(“Exits: ${currentRoom.exits.keys.join(‘, ‘)}”);
if (currentRoom.items.isNotEmpty) {
print(“You see: ${currentRoom.items.join(‘, ‘)}”);
}

String command = stdin.readLineSync()!.toLowerCase();
if (command == ‘exit’) {
print(“Thanks for playing!”);
break;
} else if (currentRoom.exits.containsKey(command)) {
currentRoom = currentRoom.exits[command]!;
} else if (command.startsWith(‘take ‘)) {
String item = command.substring(5);
if (currentRoom.items.contains(item)) {
currentRoom.items.remove(item);
print(“You took the $item.”);
} else {
print(“There is no $item here.”);
}
} else {
print(“Invalid command.”);
}
}
}
}

void main() {
Room livingRoom = Room(“You are in a cozy living room. There are exits to the north and east.”);
Room kitchen = Room(“You are in a kitchen. You can smell something delicious. There is an exit to the south.”);
Room hallway = Room(“You are in a narrow hallway. There are exits to the south and west.”);

livingRoom.setExit(‘north’, kitchen);
livingRoom.setExit(‘east’, hallway);
kitchen.setExit(‘south’, livingRoom);
hallway.setExit(‘west’, livingRoom);
hallway.setExit(‘south’, kitchen);

kitchen.items.addAll([‘knife’, ‘apple’]);
livingRoom.items.add(‘book’);

Game game = Game(livingRoom);
game.play();
}

class Room {
constructor(description) {
this.description = description;
this.exits = {};
this.items = [];
}

setExit(direction, room) {
this.exits[direction] = room;
}
}

class Game {
constructor(currentRoom) {
this.currentRoom = currentRoom;
}

play() {
console.log(“Welcome to the Adventure Game!”);
const rl = createInterface({
input: process.stdin,
output: process.stdout
});

const nextTurn = () => {
console.log(`n${this.currentRoom.description}`);
console.log(`Exits: ${Object.keys(this.currentRoom.exits).join(‘, ‘)}`);
if (this.currentRoom.items.length > 0) {
console.log(`You see: ${this.currentRoom.items.join(‘, ‘)}`);
}

rl.question(”, (command) => {
command = command.toLowerCase();
if (command === ‘exit’) {
console.log(“Thanks for playing!”);
rl.close();
} else if (this.currentRoom.exits.hasOwnProperty(command)) {
this.currentRoom = this.currentRoom.exits[command];
nextTurn();
} else if (command.startsWith(‘take ‘)) {
const item = command.substring(5);
const itemIndex = this.currentRoom.items.indexOf(item);
if (itemIndex !== -1) {
this.currentRoom.items.splice(itemIndex, 1);
console.log(`You took the ${item}.`);
} else {
console.log(`There is no ${item} here.`);
}
nextTurn();
} else {
console.log(“Invalid command.”);
nextTurn();
}
});
};

nextTurn();
}
}

const livingRoom = new Room(“You are in a cozy living room. There are exits to the north and east.”);
const kitchen = new Room(“You are in a kitchen. You can smell something delicious. There is an exit to the south.”);
const hallway = new Room(“You are in a narrow hallway. There are exits to the south and west.”);

livingRoom.setExit(‘north’, kitchen);
livingRoom.setExit(‘east’, hallway);
kitchen.setExit(‘south’, livingRoom);
hallway.setExit(‘west’, livingRoom);
hallway.setExit(‘south’, kitchen);

kitchen.items.push(‘knife’, ‘apple’);
livingRoom.items.push(‘book’);

const game = new Game(livingRoom);
game.play();