5. Vehicle Catalogue 33/100

Във форума е въведено ограничение, което позволява на потребителите единствено да разглеждат публикуваните въпроси.

Elena123456 235 Точки

5. Vehicle Catalogue 33/100

Може ли малко помощ за печатането накрая? В условието на задачата Vehicle.Type : "Cars" и "Truck трябва да се изпечатват по начин, по който само първата им буква да е главна (37 ред). Ако използвам ToUpper() ми ги изпечатва всички с главни букви, а ако използвам ToLower() ми ги изпечатва всички с малки букви. Как мога да печатам с главни букви единствено първата буква, а всички други да си останат с малки? Заради този проблем с печатането Judge ми дава 33/100. https://judge.softuni.bg/Contests/Practice/Index/1215#5

You have to create a vehicle catalogue. You will store only two types of vehicles – a car and a truck. Until you receive
the “End” command you will be receiving lines of input in the following format:
{typeOfVehicle} {model} {color} {horsepower}
After the “End” command, you will start receiving models of vehicles. Print the data for every received vehicle in
the following format:
Type: {typeOfVehicle}
Model: {modelOfVehicle}
Color: {colorOfVehicle}
Horsepower: {horsepowerOfVehicle}
When you receive the command “Close the Catalogue”, print the average horsepower for the cars and for the
trucks in the following format:
{typeOfVehicles} have average horsepower of {averageHorsepower}.
The average horsepower is calculated by dividing the sum of the horsepower of all vehicles from the certain type
by the total count of vehicles from the same type. Round the answer to the 2 nd digit after the decimal separator.

using System;
using System.Linq;
using System.Collections.Generic;

using System.Globalization;

namespace Objects
{
    class MainClass
    {
        public static void Main()
        {
            List<Vehicle> listVehicles = new List<Vehicle>();

            string command = string.Empty;
            while ((command = Console.ReadLine()) != "End")
            {
                string[] commandArr = command.Split().ToArray();

string type = commandArr[0];

                string model = commandArr[1];
                string colour = commandArr[2];
                int horsepower = int.Parse(commandArr[3]);

                Vehicle newVehicle = new Vehicle(type, model, colour, horsepower);
                listVehicles.Add(newVehicle);
            }

            string inputModel = string.Empty;
            while((inputModel=Console.ReadLine()) != "Close the Catalogue")
            {
                var newVehicle = listVehicles.FirstOrDefault(v => v.Model == inputModel);
                if (newVehicle != null)
                {
                    Console.WriteLine($"Type: {newVehicle.Type.ToUpper()}\nModel: {newVehicle.Model}\nColor: {newVehicle.Colour}\nHorsepower: {newVehicle.HorsePower}");

                }
                else
                {

                    continue;

}
}

}

            }

        }

public class Vehicle
{

            public string Type { get; set; }
            public string Model { get; set; }
            public string Colour { get; set; }
            public int HorsePower { get; set; }

            public Vehicle(string type, string model, string colour, int horsepower)
            {
                this.Type = type;
                this.Model = model;
                this.Colour = colour;
                this.HorsePower = horsepower;
            }

        }
    }
}

Тагове:

27/08/2020 22:15:24 Fundamentals Module 27/08/2020 22:17:09

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Axiomatik 2422 Точки

Best Answer

There is no ready-made functionality that allows to print out the first letter of a string with upper or lower case, you just have to write out the word in your output mesage. I have also included an alternative with StringBuilder which will be heavily used at the exam for any given text-output and changed int horsePower to double to obtain the correct result for judge.

Best,

New Code(100%):

using System;
using System.Linq;
using System.Text;
using System.Collections.Generic;

namespace Objects
{
class MainClass
{
public static void Main()
{
List<Vehicle> listVehicles = new List<Vehicle>();

string command = string.Empty;

while ((command = Console.ReadLine()) != "End")
{
string[] commandArr = command.Split().ToArray();

string type = commandArr[0];
string model = commandArr[1];
string colour = commandArr[2];
double horsepower = double.Parse(commandArr[3]);

Vehicle newVehicle = new Vehicle(type, model, colour, horsepower);
listVehicles.Add(newVehicle);
}

string inputModel = string.Empty;

while ((inputModel = Console.ReadLine()) != "Close the Catalogue")
{
var newVehicle = listVehicles.FirstOrDefault(v => v.Model == inputModel);
//StringBuilder sb = new StringBuilder();

if (newVehicle.Type == "car")
{
Console.WriteLine($"Type: Car");
Console.WriteLine($"Model: {newVehicle.Model}");
Console.WriteLine($"Color: {newVehicle.Colour}");
Console.WriteLine($"Horsepower: {newVehicle.HorsePower}");

// StringBuilder Alternative
//sb.AppendLine($"Type: Car");
//sb.AppendLine($"Model: {newVehicle.Model}");
//sb.AppendLine($"Color: {newVehicle.Colour}");
//sb.AppendLine($"Horsepower: {newVehicle.HorsePower}");
}
else if (newVehicle.Type == "truck")
{
Console.WriteLine($"Type: Truck");
Console.WriteLine($"Model: {newVehicle.Model}");
Console.WriteLine($"Color: {newVehicle.Colour}");
Console.WriteLine($"Horsepower: {newVehicle.HorsePower}");

//Console.WriteLine(sb.ToString().TrimEnd());
}

var listOfCars = listVehicles.FindAll(v => v.Type == "car");
var carsHorsePower = listOfCars.Sum(h => h.HorsePower);

if (listOfCars.Count == 0)
{
var carsAverageHorsePower = 0;
Console.WriteLine(($"Cars have average horsepower of: {carsAverageHorsePower:f2}."));
}
else
{
var carsAverageHorsePower = carsHorsePower / listOfCars.Count();
Console.WriteLine($"Cars have average horsepower of: {carsAverageHorsePower:f2}.");
}

public class Vehicle
{
public string Type { get; set; }
public string Model { get; set; }
public string Colour { get; set; }
public double HorsePower { get; set; }

public Vehicle(string type, string model, string colour, double horsepower)
{
this.Type = type;
this.Model = model;
this.Colour = colour;
this.HorsePower = horsepower;
}
}
}
}

28/08/2020 08:57:48

Elena123456 235 Точки

Thank you very much!

I want to read more about StringBuilder. It seems it is the only way to print the first letter of a string with lower or upper case.

Best regards!

Elena

29/08/2020 16:16:29

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