diff --git a/ex0/ft_strdup.c b/ex0/ft_strdup.c
index 4836dbe..6403b19 100644
--- a/ex0/ft_strdup.c
+++ b/ex0/ft_strdup.c
@@ -6,7 +6,7 @@
 /*   By: lclerel- <lclerel-@learner.42.tech>        +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/03/16 14:01:43 by lclerel-          #+#    #+#             */
-/*   Updated: 2026/03/19 11:37:45 by lclerel-         ###   ########.fr       */
+/*   Updated: 2026/03/19 19:19:38 by lclerel-         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -21,10 +21,10 @@ char	*ft_strdup(char *src)
 
 	i = 0;
 	len = 0;
+	if (src == NULL)
+		return (NULL);
 	while (src[len])
-	{
 		len++;
-	}
 	dst = malloc(sizeof(char) * (len + 1));
 	if (dst == NULL)
 	{
@@ -39,8 +39,8 @@ char	*ft_strdup(char *src)
 	return (dst);
 }
 
-/*
-void    ft_putchar(char chara)
+
+/*void    ft_putchar(char chara)
 {
         write(1, &chara, 1);
 }
@@ -61,7 +61,7 @@ int	main(void)
 {
 	char	*dest;
 
-	dest = ft_strdup("TestTest");
+	dest = ft_strdup(NULL);
 	
 	if (dest == NULL)
 	{
diff --git a/ex0/test b/ex0/test
new file mode 100755
index 0000000..9a9d32c
Binary files /dev/null and b/ex0/test differ
diff --git a/ex0/vgcore.45197 b/ex0/vgcore.45197
new file mode 100644
index 0000000..5662771
Binary files /dev/null and b/ex0/vgcore.45197 differ
diff --git a/ex0/vgcore.46666 b/ex0/vgcore.46666
new file mode 100644
index 0000000..a448f2e
Binary files /dev/null and b/ex0/vgcore.46666 differ
diff --git a/ex2/ft_ultimate_range.c b/ex2/ft_ultimate_range.c
index 50f2a71..0319f71 100644
--- a/ex2/ft_ultimate_range.c
+++ b/ex2/ft_ultimate_range.c
@@ -6,7 +6,7 @@
 /*   By: lclerel- <lclerel-@learner.42.tech>        +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/03/16 16:07:45 by lclerel-          #+#    #+#             */
-/*   Updated: 2026/03/19 14:02:24 by lclerel-         ###   ########.fr       */
+/*   Updated: 2026/03/19 19:23:18 by lclerel-         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -40,8 +40,8 @@ int	ft_ultimate_range(int **range, int min, int max)
 	*range = tab;
 	return (size);
 }
-
-/*void	ft_putchar(char c)
+/*
+void	ft_putchar(char c)
 {
 	write(1, &c, 1);
 }
diff --git a/ex3/ft_strjoin.c b/ex3/ft_strjoin.c
index 62d40d4..b91de34 100644
--- a/ex3/ft_strjoin.c
+++ b/ex3/ft_strjoin.c
@@ -6,7 +6,7 @@
 /*   By: lclerel- <lclerel-@learner.42.tech>        +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/03/16 16:37:56 by lclerel-          #+#    #+#             */
-/*   Updated: 2026/03/19 11:38:19 by lclerel-         ###   ########.fr       */
+/*   Updated: 2026/03/19 19:24:56 by lclerel-         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/ex5/ft_split.c b/ex5/ft_split.c
index 5ece03c..a6959f8 100644
--- a/ex5/ft_split.c
+++ b/ex5/ft_split.c
@@ -6,7 +6,7 @@
 /*   By: lclerel- <lclerel-@learner.42.tech>        +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/03/18 10:29:59 by lclerel-          #+#    #+#             */
-/*   Updated: 2026/03/19 11:47:13 by lclerel-         ###   ########.fr       */
+/*   Updated: 2026/03/19 19:27:27 by lclerel-         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -93,13 +93,13 @@ char	**ft_split(char *str, char *charset)
 	res[j] = 0;
 	return (res);
 }
-
-/*int	main(void)
+/*
+int	main(void)
 {
 	char	**res;
 	int		i;
 	int		j;
-	res = ft_split("Ceci Est+Un-Test^Fait/Par&Lumi.", " ^+/-*&");
+	res = ft_split("Ceci Est+Un+Test^Fait/Par&Lumi.", "+-^/&");
 	i = 0;
 	write(1, "Test avec : Ceci Est+Un-Test^Fait/Par&Lumi. : \n", 47);
 	while (res[i])