fixed interfce.cpp/park(customer, vector<pspots>)

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.11)
+cmake_minimum_required(VERSION 3.10)
 project(park)
 
 set(CMAKE_CXX_STANDARD 11)

Interface.cpp

@@ -145,7 +145,7 @@ void park(Customer& c, vector<Park_spot>& spots) {
         cout << "The following spots[which can fit your vehicle] are "
                 "available: ";
         for (Park_spot i : spots) {
-            if (i.v_type == c.vehicle) {
+            if (i.v_type == c.vehicle && !(i.taken)) {
                 cout << i.id << ", ";
             }
         }