diff --git a/42-Docs/Data Structures/C-Structures.pdf b/42-Docs/Data Structures/C-Structures.pdf
new file mode 100644
index 0000000..cc638a0
Binary files /dev/null and b/42-Docs/Data Structures/C-Structures.pdf differ
diff --git a/Data Structures/C-Strings/ex2/ft_strcmp.c b/Data Structures/C-Strings/ex2/ft_strcmp.c
index 0dd3bbf..a344ed9 100644
--- a/Data Structures/C-Strings/ex2/ft_strcmp.c	
+++ b/Data Structures/C-Strings/ex2/ft_strcmp.c	
@@ -6,7 +6,7 @@
 /*   By: lclerel- <lclerel-@student.42.fr>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/03/24 13:44:05 by lclerel-          #+#    #+#             */
-/*   Updated: 2026/03/24 15:55:22 by lclerel-         ###   ########.fr       */
+/*   Updated: 2026/03/25 16:39:44 by lclerel-         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -17,11 +17,11 @@ int	ft_strcmp(char *s1, char *s2)
 	int	i;
 
 	i = 0;
-	while (s1[i] != '\0' && s1[i] == s2[i])
+	while ((s1[i] || s2[i]) && s1[i] == s2[i])
 		i++;
 	return ((unsigned char)s1[i] - (unsigned char)s2[i]);
 }
-/*
+
 void	ft_putchar(char chara)
 {
 	write(1, &chara, 1);
@@ -38,7 +38,7 @@ void	ft_putstr(char *str)
 		i++;
 	}
 }
-
+/*
 int	main(void)
 {
 	char	*s1 = "Lumi";
@@ -80,4 +80,5 @@ int	main(void)
 		write(1, "Test 3 : Not OK :(", 18);
 	ft_putchar('\n');
 	return (0);
-}*/
+}
+*/
\ No newline at end of file
diff --git a/Data Structures/C-Strings/ex3/ft_strncmp.c b/Data Structures/C-Strings/ex3/ft_strncmp.c
index 7d761a7..bc2595a 100644
--- a/Data Structures/C-Strings/ex3/ft_strncmp.c	
+++ b/Data Structures/C-Strings/ex3/ft_strncmp.c	
@@ -6,10 +6,10 @@
 /*   By: lclerel- <lclerel-@student.42.fr>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/03/24 13:44:05 by lclerel-          #+#    #+#             */
-/*   Updated: 2026/03/24 15:55:40 by lclerel-         ###   ########.fr       */
+/*   Updated: 2026/03/25 16:39:14 by lclerel-         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
-#include <unistd.h>
+
 
 int	ft_strncmp(char *s1, char *s2, unsigned int n)
 {
@@ -18,7 +18,7 @@ int	ft_strncmp(char *s1, char *s2, unsigned int n)
 	i = 0;
 	if (n == 0)
 		return (0);
-	while (s1[i] != '\0' && s1[i] == s2[i] && i < n - 1)
+	while ((s1[i] || s2[i]) && s1[i] == s2[i] && i < n - 1)
 		i++;
 	return ((unsigned char)s1[i] - (unsigned char)s2[i]);
 }
diff --git a/README.md b/README.md
index a5444fc..0f4303e 100644
--- a/README.md
+++ b/README.md
@@ -128,7 +128,8 @@ Voici l'historique de mes validations. Chaque "Attempt" représente une étape d
 
 | Projet | Tentatives | Statut | Date Début/Fin |
 | :--- | :--- | :--- | :--- |
-| **[C Strings](./Data%20Structures/C-Strings) | [En Cours] | ⏳ | 23/03/2026 20h21 - ??? |
+| **[C Strings](./Data%20Structures/C-Strings)** | [En Cours] | ⏳ | 23/03/2026 20h21 - ??? |
+| **[C Structures](./Data%20Structures/C-Structures)** | [En Cours] | ⏳ | 25/03/2026 16h12 - ??? |
 
 ## 📝 Mes Examens
 | Examen | Score | Résultat | Raison |