Programming Basics Online Exam - 9 and 10 March 2019

BasketballEquipment.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        int annualFee = int.Parse(Console.ReadLine());

        double priceOfSneakers = annualFee * 0.6;
        double priceOfClothes = priceOfSneakers * 0.8;
        double priceOfBasketball = priceOfClothes / 4;
        double priceOfAccessories = priceOfBasketball / 5;

        double totalPrice = annualFee + priceOfSneakers + priceOfClothes + priceOfBasketball + priceOfAccessories;
        Console.WriteLine($"{totalPrice:f2}");
    }
}

BasketballTournament.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        int totalMatches = 0;
        int matchesWon = 0;
        string command = Console.ReadLine();
        while (command != "End of tournaments")
        {
            string tournament = command;
            int matches = int.Parse(Console.ReadLine());
            totalMatches += matches;

            for (int currentMatch = 1; currentMatch <= matches; currentMatch++)
            {
                int desiScore = int.Parse(Console.ReadLine());
                int oponentScore = int.Parse(Console.ReadLine());

                if (desiScore > oponentScore)
                {
                    matchesWon++;
                    int diff = desiScore - oponentScore;
                    Console.WriteLine($"Game {currentMatch} of tournament {tournament}: win with {diff} points.");
                }
                else
                {
                    int diff = oponentScore - desiScore;
                    Console.WriteLine($"Game {currentMatch} of tournament {tournament}: lost with {diff} points.");
                }
            }

            command = Console.ReadLine().Trim();
        }

        double percentWon = 100.0 * matchesWon / totalMatches;
        double percentLost = 100 - percentWon;
        Console.WriteLine($"{percentWon:f2}% matches win");
        Console.WriteLine($"{percentLost:f2}% matches lost");
    }
}

Darts.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        string name = Console.ReadLine();

        int points = 301;
        int successfulShots = 0;
        int unsuccessfulShots = 0;
        string command = Console.ReadLine();
        while (command != "Retire")
        {
            string field = command;
            int currentPoints = int.Parse(Console.ReadLine());
            if (field == "Double")
            {
                currentPoints *= 2;
            }
            else if (field == "Triple")
            {
                currentPoints *= 3;
            }            

            if (currentPoints <= points && currentPoints != 0)
            {
                points -= currentPoints;
                successfulShots++;
            }
            else
            {
                unsuccessfulShots++;
            }

            if (points == 0)
            {
                break;
            }

            command = Console.ReadLine();
        }

        if (points == 0)
        {
            Console.WriteLine($"{name} won the leg with {successfulShots} shots.");
        }
        else
        {
            Console.WriteLine($"{name} retired after {unsuccessfulShots} unsuccessful shots.");
        }
    }
}

FitnessCenter.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        int numberOfVisitors = int.Parse(Console.ReadLine());

        int countBack = 0;
        int countChest = 0;
        int countLegs = 0;
        int countAbs = 0;
        int countShake = 0;
        int countBar = 0;

        for (int i = 0; i < numberOfVisitors; i++)
        {
            string visitReason = Console.ReadLine();
            switch (visitReason)
            {
                case "Back":
                    countBack++;
                    break;
                case "Chest":
                    countChest++;
                    break;
                case "Legs":
                    countLegs++;
                    break;
                case "Abs":
                    countAbs++;
                    break;
                case "Protein shake":
                    countShake++;
                    break;
                case "Protein bar":
                    countBar++;
                    break;
            }
        }

        int totalTraining = countBack + countChest + countLegs + countAbs;
        int totalBuying = countShake + countBar;
        double percentTraining = 100.0 * totalTraining / numberOfVisitors;
        double percentBuying = 100.0 * totalBuying / numberOfVisitors;

        Console.WriteLine($"{countBack} - back");
        Console.WriteLine($"{countChest} - chest");
        Console.WriteLine($"{countLegs} - legs");
        Console.WriteLine($"{countAbs} - abs");
        Console.WriteLine($"{countShake} - protein shake");
        Console.WriteLine($"{countBar} - protein bar");

        Console.WriteLine($"{percentTraining:f2}% - work out");
        Console.WriteLine($"{percentBuying:f2}% - protein");
    }
}

FootballResults.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        int countWins = 0;
        int countLosses = 0;
        int countDraws = 0;

        for (int i = 0; i < 3; i++)
        {
            string result = Console.ReadLine();
            int goalsScored = result[0] - '0';
            int goalsReceived = result[2] - '0';

            if (goalsScored > goalsReceived)
            {
                countWins++;
            }
            else if (goalsScored == goalsReceived)
            {
                countDraws++;
            }
            else
            {
                countLosses++;
            }
        }

        Console.WriteLine($"Team won {countWins} games.");
        Console.WriteLine($"Team lost {countLosses} games.");
        Console.WriteLine($"Drawn games: {countDraws}");
    }
}

GameNumberWars.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        string firstPlayer = Console.ReadLine();
        string secondPlayer = Console.ReadLine();

        int firstPlayerPoints = 0;
        int secondPlayerPoints = 0;
        string winner = string.Empty;
        int winnerPoints = 0;
        string command = Console.ReadLine();
        while (command != "End of game")
        {
            int firstPlayerCard = int.Parse(command);
            int secondPlayerCard = int.Parse(Console.ReadLine());

            if (firstPlayerCard > secondPlayerCard)
            {
                firstPlayerPoints += firstPlayerCard - secondPlayerCard;
            }
            else if (secondPlayerCard > firstPlayerCard)
            {
                secondPlayerPoints += secondPlayerCard - firstPlayerCard;
            }
            else
            {
                Console.WriteLine("Number wars!");
                firstPlayerCard = int.Parse(Console.ReadLine());
                secondPlayerCard = int.Parse(Console.ReadLine());

                if (firstPlayerCard > secondPlayerCard)
                {
                    winner = firstPlayer;
                    winnerPoints = firstPlayerPoints;
                }
                else
                {
                    winner = secondPlayer;
                    winnerPoints = secondPlayerPoints;
                }

                break;
            }

            command = Console.ReadLine();
        }

        if (winner != string.Empty)
        {
            Console.WriteLine($"{winner} is winner with {winnerPoints} points");
        }
        else
        {
            Console.WriteLine($"{firstPlayer} has {firstPlayerPoints} points");
            Console.WriteLine($"{secondPlayer} has {secondPlayerPoints} points");
        }
    }
}

Gymnastics.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        string country = Console.ReadLine();
        string item = Console.ReadLine();

        double score = 0;
        switch (country)
        {
            case "Russia":
                switch (item)
                {
                    case "ribbon":
                        score = 9.1 + 9.4;
                        break;
                    case "hoop":
                        score = 9.3 + 9.8;
                        break;
                    case "rope":
                        score = 9.6 + 9;
                        break;
                }
                break;
            case "Bulgaria":
                switch (item)
                {
                    case "ribbon":
                        score = 9.6 + 9.4;
                        break;
                    case "hoop":
                        score = 9.55 + 9.75;
                        break;
                    case "rope":
                        score = 9.5 + 9.4;
                        break;
                }
                break;
            case "Italy":
                switch (item)
                {
                    case "ribbon":
                        score = 9.2 + 9.5;
                        break;
                    case "hoop":
                        score = 9.45 + 9.35;
                        break;
                    case "rope":
                        score = 9.7 + 9.15;
                        break;
                }
                break;
        }

        Console.WriteLine($"The team of {country} get {score:f3} on {item}.");

        double maxScore = 20;
        double percentLessThanPerfect = (maxScore - score) / maxScore * 100;
        Console.WriteLine($"{percentLessThanPerfect:f2}%");
    }
}

HighJump.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        int targetHeight = int.Parse(Console.ReadLine());
        int currentHeight = targetHeight - 30;

        int totalJumps = 0;
        bool successfulJump = false;
        while (true)
        {
            successfulJump = false;
            for (int i = 0; i < 3; i++)
            {
                int currentJumpHeight = int.Parse(Console.ReadLine());
                totalJumps++;
                if (currentJumpHeight > currentHeight)
                {
                    successfulJump = true;
                    break;
                }
            }
          
            if (!successfulJump || currentHeight >= targetHeight)
            {
                break;
            }            

            currentHeight += 5;            
        }

        if (!successfulJump)
        {
            Console.WriteLine($"Tihomir failed at {currentHeight}cm after {totalJumps} jumps.");
        }
        else
        {
            Console.WriteLine($"Tihomir succeeded, he jumped over {currentHeight}cm after {totalJumps} jumps.");
        }        
    }
}

Skeleton.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        int quotaMinutes = int.Parse(Console.ReadLine());
        int quotaSeconds = int.Parse(Console.ReadLine());
        double lengthOfTrackInMeters = double.Parse(Console.ReadLine());
        int secondsPer100Meters = int.Parse(Console.ReadLine());

        int quotaTotalSeconds = quotaMinutes * 60 + quotaSeconds;
        double secondsToCompleteTrack = secondsPer100Meters * (lengthOfTrackInMeters / 100);
        double secondsReducedDueToTrackSlope = (lengthOfTrackInMeters / 120) * 2.5;
        secondsToCompleteTrack -= secondsReducedDueToTrackSlope;

        if (secondsToCompleteTrack <= quotaTotalSeconds)
        {
            Console.WriteLine("Marin Bangiev won an Olympic quota!");
            Console.WriteLine($"His time is {secondsToCompleteTrack:f3}.");
        }
        else
        {
            double secondsAboveQuota = secondsToCompleteTrack - quotaTotalSeconds;
            Console.WriteLine($"No, Marin failed! He was {secondsAboveQuota:f3} second slower.");
        }
    }
}

TennisEquipment.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        double priceOfRacket = double.Parse(Console.ReadLine());
        int numberOfRackets = int.Parse(Console.ReadLine());
        int numberOfShoePairs = int.Parse(Console.ReadLine());

        double pricePerShoePair = priceOfRacket / 6;
        double totalPriceOfRackets = priceOfRacket * numberOfRackets;
        double totalPriceOfShoes = pricePerShoePair * numberOfShoePairs;

        double priceOfAccessories = 0.2 * (totalPriceOfRackets + totalPriceOfShoes);
        double totalPrice = totalPriceOfRackets + totalPriceOfShoes + priceOfAccessories;

        double paidByDjokovic = Math.Floor(totalPrice / 8);
        double paidBySponsors = Math.Ceiling(totalPrice * 7 / 8);

        Console.WriteLine($"Price to be paid by Djokovic {paidByDjokovic}");
        Console.WriteLine($"Price to be paid by sponsors {paidBySponsors}");
    }
}

TennisRanklist.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        int numberOfTournaments = int.Parse(Console.ReadLine());
        int pointsAtStartOfSeason = int.Parse(Console.ReadLine());

        int pointsInCurrentSeason = 0;
        int tournamentsWon = 0;
        for (int i = 0; i < numberOfTournaments; i++)
        {
            string stageReached = Console.ReadLine();
            switch (stageReached)
            {
                case "W":
                    tournamentsWon++;
                    pointsInCurrentSeason += 2000;
                    break;
                case "F":
                    pointsInCurrentSeason += 1200;
                    break;
                case "SF":
                    pointsInCurrentSeason += 720;
                    break;
            }
        }

        int pointsAtEndOfSeason = pointsAtStartOfSeason + pointsInCurrentSeason;
        int averagePoints = pointsInCurrentSeason / numberOfTournaments;
        double percentTournamentsWon = 100.0 * tournamentsWon / numberOfTournaments;

        Console.WriteLine($"Final points: {pointsAtEndOfSeason}");
        Console.WriteLine($"Average points: {averagePoints}");
        Console.WriteLine($"{percentTournamentsWon:f2}%");
    }
}

WorldSnookerChampionship.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        string competitionStage = Console.ReadLine();
        string ticketType = Console.ReadLine();
        int numberOfTickets = int.Parse(Console.ReadLine());
        string photoOption = Console.ReadLine();

        double pricePerTicket = 0;
        switch (competitionStage)
        {
            case "Quarter final":
                switch (ticketType)
                {
                    case "Standard":
                        pricePerTicket = 55.5;
                        break;
                    case "Premium":
                        pricePerTicket = 105.2;
                        break;
                    case "VIP":
                        pricePerTicket = 118.9;
                        break;
                }
                break;
            case "Semi final":
                switch (ticketType)
                {
                    case "Standard":
                        pricePerTicket = 75.88;
                        break;
                    case "Premium":
                        pricePerTicket = 125.22;
                        break;
                    case "VIP":
                        pricePerTicket = 300.4;
                        break;
                }
                break;
            case "Final":
                switch (ticketType)
                {
                    case "Standard":
                        pricePerTicket = 110.1;
                        break;
                    case "Premium":
                        pricePerTicket = 160.66;
                        break;
                    case "VIP":
                        pricePerTicket = 400;
                        break;
                }
                break;
        }

        double totalPrice = pricePerTicket * numberOfTickets;
        bool freePhotos = false;
        if (totalPrice > 4000)
        {
            totalPrice *= 0.75;
            freePhotos = true;
        }
        else if (totalPrice > 2500)
        {
            totalPrice *= 0.9;
        }

        if (photoOption == "Y" && !freePhotos)
        {
            totalPrice += numberOfTickets * 40;
        }

        Console.WriteLine($"{totalPrice:f2}");
    }
}