03. Memory Game

function memoryGame(input) {
    let game = input[0].split(' ');

    for (let i = 1; i < input.length - 1; i++) {
        [index1, index2] = input[i].split(' ').map(Number).sort();
        if (index1 >= 0 && index1 < game.length && index2 >= 0 && index2 < game.length && index1 != index2) {
            if (game[index1] === game[index2]) {
                console.log(`Congrats! You have found matching elements - ${game[index1]}!`);
                game.splice(index2, 1);
                game.splice(index1, 1);
                if (game.length == 0) {
                    console.log(`You have won in ${i} turns!`);
                    return;
                }
            } else {
                console.log("Try again!");
            }
        } else {
            game.splice(game.length / 2, 0, `-${i}a`, `-${i}a`);
            console.log("Invalid input! Adding additional elements to the board");
        }
    }

    console.log(`Sorry you lose :(\n${game.join(" ")}`);
    return;
}