diff --git a/include/app/cost.h b/include/app/cost.h
deleted file mode 100644
index 624d1ed..0000000
--- a/include/app/cost.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   cost.h                                             :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: maiboyer <maiboyer@student.42.fr>          +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2024/01/12 21:13:51 by maiboyer          #+#    #+#             */
-/*   Updated: 2024/01/17 15:32:25 by maiboyer         ###   ########.fr       */
-/*                                                                            */
-/* ************************************************************************** */
-
-#ifndef COST_H
-# define COST_H
-
-
-# include "app/state.h"
-# include "app/types/type_cost.h"
-# include "me/types.h"
-
-t_cost		alloc_cost(t_state *s);
-void		free_cost(t_cost self);
-t_cost		*calculate_cost(t_state *s);
-void		cost_for_index(t_state *s, t_usize index);
-
-typedef struct s_cost_iter_state
-{
-	t_cost	*current_minimum;
-	t_usize	max_index;
-}			t_cost_iter_state;
-
-#endif /* COST_H */
diff --git a/include/app/dup_state.h b/include/app/dup_state.h
deleted file mode 100644
index bf4f05f..0000000
--- a/include/app/dup_state.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   dup_state.h                                        :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: maiboyer <maiboyer@student.42.fr>          +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2024/01/11 15:58:29 by maiboyer          #+#    #+#             */
-/*   Updated: 2024/01/11 15:59:29 by maiboyer         ###   ########.fr       */
-/*                                                                            */
-/* ************************************************************************** */
-
-#ifndef DUP_STATE_H
-# define DUP_STATE_H
-
-
-# include "me/types.h"
-
-typedef struct s_dup_state
-{
-	t_i64	*lhs;
-	t_usize		index_to_skip;
-	bool		found_dup;
-}				t_dup_state;
-
-#endif /* DUP_STATE_H */
diff --git a/include/app/lis.h b/include/app/lis.h
deleted file mode 100644
index aa6aba9..0000000
--- a/include/app/lis.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   lis.h                                              :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: maiboyer <maiboyer@student.42.fr>          +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2024/01/11 19:03:30 by maiboyer          #+#    #+#             */
-/*   Updated: 2024/01/11 20:50:43 by maiboyer         ###   ########.fr       */
-/*                                                                            */
-/* ************************************************************************** */
-
-#ifndef LIS_H
-# define LIS_H
-
-# include "me/types.h"
-# include "me/vec/vec_i64.h"
-# include "me/vec/vec_i64.h"
-
-t_vec_i64	lis(t_vec_i64 *elements);
-
-#endif /* LIS_H */
diff --git a/include/app/types/type_cost.h b/include/app/types/type_cost.h
deleted file mode 100644
index 2efbb54..0000000
--- a/include/app/types/type_cost.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   type_cost.h                                        :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: maiboyer <maiboyer@student.42.fr>          +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2024/01/12 21:20:00 by maiboyer          #+#    #+#             */
-/*   Updated: 2024/01/12 23:16:24 by maiboyer         ###   ########.fr       */
-/*                                                                            */
-/* ************************************************************************** */
-
-#ifndef TYPE_COST_H
-# define TYPE_COST_H
-
-# include "me/types.h"
-# include "me/vec/vec_moves.h"
-
-typedef struct s_cost
-{
-	t_usize		index;
-	t_vec_moves	moves;
-	bool		active;
-}				t_cost;
-
-#endif /* TYPE_COST_H */