CODE HOA3

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

namespace HOA3_12Eva03AmadorJohnMichael
{
    class Program
    {
        static void Main(string[] args)
        {
            int choice = 0;
            List<double> scores = new List<double>();
            List<double> hps = new List<double>();
            while (choice == 0)
            {

                Console.WriteLine("----------------------------------");
                Console.WriteLine("1 - Add Quiz");
                Console.WriteLine("2 - View Quiz");
                Console.WriteLine("3 - Corrections");
                Console.WriteLine("4 - View All Quizzes");
                Console.WriteLine("5 - Exit");
                Console.WriteLine("----------------------------------");
                Console.Write("Enter choice: ");
                choice = int.Parse(Console.ReadLine());
                if (choice == 1)
                {
                    Console.WriteLine("NEW QUIZ");
                    Console.Write("Enter Score: ");
                    scores.Add(double.Parse(Console.ReadLine()));
                    Console.Write("Enter HPS: ");
                    hps.Add(double.Parse(Console.ReadLine()));
                    Console.WriteLine("Quiz successfully added!");
                    choice = 0;
                }
                else if (choice == 2)
                {
                    int quiznum;
                    Console.WriteLine("VIEW QUIZ");
                    Console.Write("Enter quiz no: ");
                    quiznum = int.Parse(Console.ReadLine());
                    if (quiznum > scores.Count)
                    {
                        Console.WriteLine("Quiz " + quiznum + " doesn't exist!");
                        choice = 0;
                    }
                    else if (quiznum <= scores.Count)
                    {
                        Console.WriteLine("Score: " + scores[quiznum - 1] + "\t" + "HPS: " + hps[quiznum - 1]);
                        choice = 0;
                    }

                }
                else if (choice == 3)
                {
                    int quiznum, newscore;
                    Console.WriteLine("QUIZ CORRECTIONS");
                    Console.Write("Enter quiz no: ");
                    quiznum = int.Parse(Console.ReadLine());
                    if (quiznum > scores.Count)
                    {
                        Console.WriteLine("Quiz " + quiznum + " doesn't exist!");
                        choice = 0;
                    }
                    else
                    {
                        Console.WriteLine("Enter new score: ");
                        newscore = int.Parse(Console.ReadLine());
                        scores[quiznum - 1] = newscore;
                        Console.WriteLine("Quiz " + quiznum + " successfully updated!");
                        choice = 0;
                    }

                }
                else if (choice == 4)
                {
                    double sumhps = 0, sumscores = 0, output;
                    Console.WriteLine("CLASS STANDING");
                    for (int i = 0; i < scores.Count; i++)
                    {
                        Console.WriteLine("Quiz " + (i + 1) + "\t Score: " + scores[i] + "\t" + "HPS: " + hps[i]);
                        sumscores += scores[i];
                    }
                    for (int i = 0; i < hps.Count; i++)
                    {
                        sumhps += hps[i];
                    }
                    output = (sumscores / sumhps);
                    Console.WriteLine("Class standing: " + (output * 100));
                    choice = 0;
                }
                else if (choice == 5)
                {
                    Console.WriteLine("Exiting the app...");
                    Console.WriteLine("Press any key to continue. . .");
                }
            }
            Console.ReadKey();
        }
    }
}