07. School Camp

function schoolCamp(input) {
    let season = input[0];
    let group = input[1];
    let people = Number(input[2]);
    let nights = Number(input[3]);
    let price = 0;
    let sport = '';

    if (season === 'Winter') {
        switch (group) {
            case 'boys':
                price = 9.60;
                sport = 'Judo';
                break;
            case 'girls':
                price = 9.60;
                sport = 'Gymnastics';
                break;
            case 'mixed':
                price = 10.00;
                sport = 'Ski';
                break;
        }
    } else if (season === 'Spring') {
        switch (group) {
            case 'boys':
                price = 7.20;
                sport = 'Tennis';
                break;
            case 'girls':
                price = 7.20;
                sport = 'Athletics';
                break;
            case 'mixed':
                price = 9.50;
                sport = 'Cycling';
                break;
        }
    } else {
        switch (group) {
            case 'boys':
                price = 15.00;
                sport = 'Football';
                break;
            case 'girls':
                price = 15.00;
                sport = 'Volleyball';
                break;
            case 'mixed':
                price = 20.00;
                sport = 'Swimming';
                break;
        }
    }

    if (people >= 50) {
        price *= 0.50;
    } else if (people >= 20) {
        price *= 0.85;
    }  else if (people >= 10) {
        price *= 0.95;
    }

    let total = price * people * nights;
    console.log(`${sport} ${total.toFixed(2)} lv.`);
}

Решение с тернарен оператор:

function schoolCamp(input) {
    let season = input[0];
    let group = input[1];
    let people = Number(input[2]);
    let nights = Number(input[3]);
    let price = 0;
    let sport = '';

    if (season === 'Winter') {
        price = group === 'boys' ? 9.60 : group === 'girls' ? 9.60 : 10.00;
        sport = group === 'boys' ? 'Judo' : group === 'girls' ? 'Gymnastics' : 'Ski';
    } else if (season === 'Spring') {
        price = group === 'boys' ? 7.20 : group === 'girls' ? 7.20 : 9.50;
        sport = group === 'boys' ? 'Tennis' : group === 'girls' ? 'Athletics' : 'Cycling';
    } else {
        price = group === 'boys' ? 15.00 : group === 'girls' ? 15.00 : 20.00;
        sport = group === 'boys' ? 'Football' : group === 'girls' ? 'Volleyball' : 'Swimming';
    }

    price *=
        people >= 50 ? 0.50 :
            people >= 20 ? 0.85 :
                people >= 10 ? 0.95 : 1;

    let total = price * people * nights;
    console.log(`${sport} ${total.toFixed(2)} lv.`);
}