docs: document Example program and remove useless check

Source/Example/Program.cs

@@ -1,44 +1,57 @@
 // See https://aka.ms/new-console-template for more information
+// We read the first line containing the sizes & rounds
 var line1 = Console.ReadLine();
+// log it to the console for debugging-purposes
 Console.WriteLine("# " + line1);
 var sizes = line1.Split(" ");
 var width = Int32.Parse(sizes[0]);
 var height = Int32.Parse(sizes[1]);
 var rounds = Int32.Parse(sizes[2]);
 
-var arr = new List<int[]>();
-
+var gameState = new List<int[]>();
+// loop over the entire grid to get its sizes
 for (int i = 0; i < height; i++)
 {
     var line = Console.ReadLine();
+    // log it to the console for debugging-purposes
     Console.WriteLine("# " + line);
     // Fill the grid with zeros indicating that that slot can be used to roll on and the rest will be filled with -1 (non placeble)
     var data = line!.Split(" ").Select(c => Int32.Parse(c)).Select(c => c != 0 ? 0 : -1).ToArray();
-    arr.Add(data);
+    gameState.Add(data);
 }
 
 var rnd = new Random();
 
 for (int i = 0; i < rounds; i++)
 {
+    // We have to wait a bit Console.Readline() doesn't have a function that waits till a line is there it goes either theres a line or null
     Thread.Sleep(10);
     var roll = Console.ReadLine();
     if (roll == null) continue;
+    // log it to the console for debugging-purposes
     Console.WriteLine("# " + roll);
 
     var nums = roll.Split(" ");
     var first = Int32.Parse(nums[0]);
+    // we dont actually use the second roll
     var second = Int32.Parse(nums[1]);
 
     var x = rnd.Next(0, width / 2);
     var y = rnd.Next(0, height);
+    // set a hard limit
     var limit = 5000;
-    while ((arr[y][x] != 0 || arr[y][x] == -1) && limit != 0)
+
+    // finds the next valid place to place the roll this is a brute-forcing way.
+    // if its not 0 its not a valid spot
+    while (gameState[y][x] != 0 && limit != 0)
     {
         limit -= 1;
+        // we only want to place on the first half of the board
+        // the other half is ignored
         x = rnd.Next(0, width / 2);
         y = rnd.Next(0, height);
     }
-    arr[y][x] = first;
+    gameState[y][x] = first;
+    // send the result to tester
     Console.WriteLine($"{first} {x} {y}");
 }