10. SoftUni Exam Results - Dictionaries

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

public class Program
{
	public static void Main()
	{
		Dictionary <string, int> studentsAndPoints = new Dictionary<string, int>();
		Dictionary <string, int> langAndCount = new Dictionary<string, int>();

		while(true)
		{
			string line = Console.ReadLine();

			if (line == "exam finished")
			{
				break;
			}

			string[] tokens = line.Split('-');

			if (tokens.Length>2)
			{
				string username = tokens[0];
				string language = tokens[1];
				int points = int.Parse(tokens[2]);

				if (!langAndCount.ContainsKey(language))
				{
					langAndCount[language]=1;
				}
				else
				{
					langAndCount[language]++;
				}



				if (!studentsAndPoints.ContainsKey(username))
				{
					studentsAndPoints[username]=points;
				}
				else
				{
					if (points>studentsAndPoints[username])
					{
						studentsAndPoints[username]=points;
					}
				}
			}
			else
			{
				string username = tokens[0];
				string banned = tokens[1];

				if (studentsAndPoints.ContainsKey(username))
				{
					studentsAndPoints.Remove(username);
				}
			}
		}

		Console.Write("Results:");
		Console.WriteLine();

		foreach (var kvp in studentsAndPoints.OrderByDescending(x=>x.Value).ThenBy(x=>x.Key))
		{
			Console.WriteLine("{0} | {1}",kvp.Key,kvp.Value);
		}

		Console.WriteLine("Submissions:");

		foreach (var kvp in langAndCount.OrderByDescending(x=>x.Value).ThenBy(x=>x.Key))
		{
			Console.WriteLine("{0} - {1}",kvp.Key,kvp.Value);
		}
	}
}