Übung2

Merged cars.c from my branch to Übung 2 branch

cars_1.c

@@ -22,7 +22,7 @@ void* func(void* arg){
     car_on_bridge ++;
     usleep(10000);
     car_on_bridge --;
-    printf("Car %d is crossing the bridge\n", car_id);
+    printf("Car %d has crossed the bridge\n", car_id);
 
     crosses_counter++;
     }