04. Fishing Boat

function fishingBoat(input){
    let budget = Number(input[0]);
    let season = input[1];
    let people = Number(input[2]);
    let sum = 0;

    switch (season) {
        case "Spring":
            sum = 3000;
            break;
        case "Summer":
        case "Autumn":
            sum = 4200;
            break;
        case "Winter":
            sum = 2600;
            break;
    }

    if (people <= 6) {
        sum *= 0.9;
    } else if (people > 6 && people <= 11) {
        sum *= 0.85;
    } else {
        sum *= 0.75;
    }

    if (people % 2 === 0 && season !== "Autumn") {
        sum *= 0.95;
    }

    if (budget >= sum) {
        console.log(`Yes! You have ${(budget - sum).toFixed(2)} leva left.`);
    } else {
        console.log(`Not enough money! You need ${(sum - budget).toFixed(2)} leva.`);
    }
}

РЕШЕНИЕ С IF ELSE ЛЕКО ТАРИКАТСКАТА:

function fishingBoat(input) {
    let budget = Number(input[0]);
    let season = input[1];
    let people = Number(input[2]);
    let sum = 4200;

    if (season === "Spring") {
        sum = 3000;
    } else if (season === "Winter") {
        sum = 2600;
    }

    if (people <= 6) {
        sum *= 0.9;
    } else if (people > 11) {
        sum *= 0.75;
    } else {
        sum *= 0.85;
    }

    if (people % 2 === 0 && season !== "Autumn") {
        sum *= 0.95;
    }

    if (budget >= sum) {
        console.log(`Yes! You have ${(budget - sum).toFixed(2)} leva left.`);
    } else {
        console.log(`Not enough money! You need ${(sum - budget).toFixed(2)} leva.`);
    }
}

РЕШЕНИЕ С ТЕРНАРЕН ОПЕРАТОР:

function FishingBoat(input) {
    let budget = Number(input[0]);
    let season = input[1];
    let people = Number(input[2]);

    budget -= ((season === "Spring" ? 3000 : season === "Winter" ? 2600 : 4200) *
        (people <= 6 ? 0.9 : people > 11 ? 0.75 : 0.85) *
        (people % 2 === 0 && season !== "Autumn" ? 0.95 : 1));

    console.log(budget >= 0 ? `Yes! You have ${budget.toFixed(2)} leva left.` :
        `Not enough money! You need ${Math.abs(budget).toFixed(2)} leva.`);
}