Add display separator

src/main.rs

@@ -246,6 +246,8 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     let world: world::World = parse_config(raw_conf, &mut robot_pool)?;
     let mut hash: HashMap<robot::Position, u32> = HashMap::new();
     create_hash_map(&robot_pool, &mut hash);
+    println!("Initial state");
+    println!("==============");
     display_grid(&world, &robot_pool, &hash);
     loop {
         let mut piouff: u32 = 0;
@@ -264,6 +266,9 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             break;
         }
     }
+    println!("Final state");
+    println!("============");
+    display_grid(&world, &robot_pool, &hash);
     for r in &robot_pool {
         println!("Robot id: {}: Final position: ({}, {})", r.id, r.p.x, r.p.y);
     }