From 01e3c049ed2ea9af2666ec9a6886fa7c667145e5 Mon Sep 17 00:00:00 2001
From: ThamerMashni <thamer.mashni@tuwaiq.edu.sa>
Date: Wed, 4 Aug 2021 09:43:04 +0300
Subject: [PATCH] add files

---
 RiyadhMetro/Program.cs | 92 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 RiyadhMetro/Program.cs

diff --git a/RiyadhMetro/Program.cs b/RiyadhMetro/Program.cs
new file mode 100644
index 0000000..9ddf7ae
--- /dev/null
+++ b/RiyadhMetro/Program.cs
@@ -0,0 +1,92 @@
+using System;
+using System.Collections.Generic;
+
+namespace RiyadhMetro
+{
+    internal class Program
+    {
+        public static List<string> red = new List<string>()
+        {
+            "Alwrod", "Salah Aldin", "Alnzha", "Hittin", "Qwrtba", "KSU", "Almalaz", "Diplomatic"
+        };
+
+        public static List<string> blue = new List<string>()
+        {
+            "Alakeek", "Alyasmin", "Salah Aldin", "Rahmanea", "Motamrat", "Alolya", "Almoroj"
+        };
+
+        public static List<string> green = new List<string>()
+        {
+            "Nmar", "PNU", "Salah Aldin", "Solaymanea", "Alamal", "Tayba", "Alhazem", "Alzahra"
+        };
+
+        public static List<string> startLine;
+        public static List<string> endLine;
+
+        private static void Main(string[] args)
+        {
+            stopsBetweenStations("Red", "Alwrod", "Red", "Diplomatic"); 
+            stopsBetweenStations("Blue", "Alyasmin", "Red", "Alnzha"); 
+            stopsBetweenStations("Red", "Diplomatic", "Green", "Nmar"); 
+
+
+        }
+
+        public static void stopsBetweenStations(string sLine, string startStation, string eLine, string endStation)
+        {
+            bool valid = assignLines(sLine, eLine);
+            if (!valid)
+            {
+                Console.WriteLine("INVALID LINE!");
+                return;
+            }
+            if (startStation == endStation) { Console.WriteLine("0 stops, You are already at your location."); }
+            else if (startLine == endLine)
+            {
+                Console.WriteLine(Math.Abs(startLine.IndexOf(startStation) - endLine.IndexOf(endStation)) + " stops.");
+            }
+            else
+            {
+                int counter = 0;
+                counter = calcIntersection(startLine.IndexOf(startStation), startLine.IndexOf("Salah Aldin"))
+                    + calcIntersection(endLine.IndexOf(endStation), endLine.IndexOf("Salah Aldin"));
+                Console.WriteLine(counter + " stops.");
+            }
+        }
+
+        public static int calcIntersection(int station, int intersection)
+        {
+            int stops = 0;
+            if (station < intersection)
+            {
+                for (int i = station; i < intersection; i++)
+                {
+                    stops++;
+                }
+            }
+            else
+            {
+                for (int i = station; i > intersection; i--)
+                {
+                    stops++;
+                }
+            }
+            return stops;
+        }
+
+        public static bool assignLines(string sLine, string eLine)
+        {
+            if (sLine == "Red") { startLine = red; }
+            else if (sLine == "Blue") { startLine = blue; }
+            else if (sLine == "Green") { startLine = green; }
+            else { return false; }
+
+            if (eLine == "Red") { endLine = red; }
+            else if (eLine == "Blue") { endLine = blue; }
+            else if (eLine == "Green") { endLine = green; }
+            else {return false; }
+
+            return true;
+        }
+    }
+}
\ No newline at end of file