Save the change

Level 4 - Number operations 0 of 9 activities solved

Polyhedral dice Not yet solved
Save the change Not yet solved
Denary to binary Not yet solved
Dungeon master Not yet solved
Leap year Not yet solved
Guess the number Not yet solved
Seconds in a day Not yet solved
Least common multiple Not yet solved
Rock, paper, scissors Not yet solved

Next series Level 5 - One-dimension arrays and lists

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// Save the change program

using System;

class Submission
{
    // -------------------------
    // Subprograms
    // -------------------------
    static int nearest_pound(double amount)
    {
        return (int)Math.Floor(amount) + 1;
    }


    static double save_the_change(double amount)
    {
        double savings;
        if (Math.Floor(amount) != amount)
        {
            savings = nearest_pound(amount) - amount;
        }
        else
        {
            savings = 1;
        }
        return savings;
    }


    // -------------------------
    // Main program
    // -------------------------
    public static void Main(string[] args)
    {
        Console.WriteLine("Enter the purchase price: £");
        double purchase_price = Convert.ToDouble(Console.ReadLine());
        int debit = nearest_pound(purchase_price);
        double savings = save_the_change(purchase_price);
        Console.WriteLine(string.Format("Debit - £{0:F2}", debit));
        Console.WriteLine(string.Format("Credit to savings - £{0:F2}", savings));
    }

}