ExamRetake_24April2018_Pr01_Crossroads

using System;
using System.Collections.Generic;
using System.Linq;
namespace ExamRetake_24April2018
{
    class Crossroads
    {
        static void Main()
        {
            int greenLight = int.Parse(Console.ReadLine());
            int freeWindow = int.Parse(Console.ReadLine());
            Queue<string> cars = new Queue<string>();
            bool carCrashed = false;
            string theCarThatCrashed = "";
            int crashStart = 0;
            int carsCounter = 0;
            string input = "";
            while(input != "END")
            {
                input = Console.ReadLine();

                if(input == "END")
                {
                    break;
                }
                if(input == "green")
                {
                    int passingTime = greenLight;
                    int bufferTime = freeWindow;
                    string currentCar = "";

                    while(passingTime > 0 && cars.Count > 0)
                    {
                        if(passingTime <= 0 || cars.Count <= 0)
                        {
                            break;
                        }
                        currentCar = cars.Dequeue();

                        if (currentCar.Length <= passingTime)
                        {
                            passingTime -= currentCar.Length;
                            carsCounter++;
                        }
                        else
                        {
                            if(currentCar.Length <= passingTime + bufferTime)
                            {
                                passingTime -= currentCar.Length;
                                carsCounter++;
                            }
                            else
                            {
                                carCrashed = true;
                                if(passingTime < 0)
                                {
                                    passingTime = 0;
                                }
                                crashStart = passingTime + bufferTime;
                                theCarThatCrashed = currentCar;
                                break;
                            }
                        }
                    }
                    if(carCrashed)
                    {
                        break;
                    }
                    /*if(currentCar.Length > greenLight + freeWindow)
                    {
                        for (int i = 0; i < passingTime; i++)
                        {
                            currentCar = cars.Dequeue();
                        }
                    }*/
                }
                else
                {
                    string car = input;
                    cars.Enqueue(car);
                }
            }
            if(carCrashed)
            {
                Console.Write("A crash happened!\n{0} was hit at {1}.", theCarThatCrashed, theCarThatCrashed[crashStart]);
            }
            else
            {
                Console.Write("Everyone is safe.\n{0} total cars passed the crossroads.", carsCounter);
            }
        }
    }
}