diff --git a/C_07/git_old/ex02/ft_ultimate_range.c b/C_07/git_old/ex02/ft_ultimate_range.c
index 0ecabb9..489e0b5 100644
--- a/C_07/git_old/ex02/ft_ultimate_range.c
+++ b/C_07/git_old/ex02/ft_ultimate_range.c
@@ -6,7 +6,7 @@
 /*   By: gbaconni <gbaconni@42lausanne.ch>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2021/08/18 18:13:35 by gbaconni          #+#    #+#             */
-/*   Updated: 2021/08/20 10:49:32 by gbaconni         ###   ########.fr       */
+/*   Updated: 2021/08/20 14:03:59 by gbaconni         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -56,6 +56,8 @@ int	ft_ultimate_range(int **range, int min, int max)
 	else
 		size = ft_abs(max - min);
 	r = ft_range(min, max);
+	if (r == NULL)
+		return (-1);
 	*range = r;
 	return (size);
 }
diff --git a/C_07/git_old/ex03/ft_strjoin.c b/C_07/git_old/ex03/ft_strjoin.c
index 11efb73..a1d8297 100644
--- a/C_07/git_old/ex03/ft_strjoin.c
+++ b/C_07/git_old/ex03/ft_strjoin.c
@@ -6,7 +6,7 @@
 /*   By: gbaconni <gbaconni@42lausanne.ch>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2021/08/19 11:25:51 by gbaconni          #+#    #+#             */
-/*   Updated: 2021/08/20 11:41:49 by gbaconni         ###   ########.fr       */
+/*   Updated: 2021/08/20 14:02:25 by gbaconni         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/C_07/git_old2/ex00/ft_strdup.c b/C_07/git_old2/ex00/ft_strdup.c
new file mode 100644
index 0000000..1bc2b09
--- /dev/null
+++ b/C_07/git_old2/ex00/ft_strdup.c
@@ -0,0 +1,36 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strdup.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: gbaconni <marvin@42lausanne.ch>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/08/13 09:03:26 by gbaconni          #+#    #+#             */
+/*   Updated: 2021/08/20 11:29:47 by gbaconni         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdlib.h>
+
+char	*ft_strdup(char *src)
+{
+	char	*str;
+	char	*_str;
+	char	*_src;
+	int		size;
+
+	size = 0;
+	while (src[size] != '\0')
+		size++;
+	str = (char *) malloc((size + 1) * sizeof(char));
+	if (str == NULL)
+		return (NULL);
+	_str = str;
+	_src = src;
+	while (*src != '\0')
+		*str++ = *src++;
+	*str = '\0';
+	str = _str;
+	src = _src;
+	return (str);
+}
diff --git a/C_07/git_old2/ex00/main.c b/C_07/git_old2/ex00/main.c
new file mode 100644
index 0000000..9edc3e9
--- /dev/null
+++ b/C_07/git_old2/ex00/main.c
@@ -0,0 +1,34 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   main.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: gbaconni <marvin@42lausanne.ch>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/08/13 09:02:59 by gbaconni          #+#    #+#             */
+/*   Updated: 2021/08/18 18:07:36 by gbaconni         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+char	*ft_strdup(char *src);
+
+int	main(void)
+{
+	char		*src;
+	char		*result;
+
+	src = (char *) malloc(32 * sizeof(char));
+	printf("Input String [max 31]: ");
+	scanf("%s", src);
+	result = ft_strdup(src);
+	printf("src=%s result=%s (ft_strdup)\n", src, result);
+	result = strdup(src);
+	printf("src=%s result=%s (strdup)\n", src, result);
+	free(src);
+	return (0);
+}
diff --git a/C_07/git_old2/ex00/main.sh b/C_07/git_old2/ex00/main.sh
new file mode 100755
index 0000000..292faee
--- /dev/null
+++ b/C_07/git_old2/ex00/main.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+set -e
+#norminette -R CheckForbiddenSourceHeader ft_*.c
+norminette -R CheckForbiddenSourceHeader
+gcc -Wall -Wextra -Werror -o a.out *.c
+echo $(basename $PWD):
+./a.out
+rm -f a.out
diff --git a/C_07/git_old2/ex01/ft_range.c b/C_07/git_old2/ex01/ft_range.c
new file mode 100644
index 0000000..114b29a
--- /dev/null
+++ b/C_07/git_old2/ex01/ft_range.c
@@ -0,0 +1,41 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_range.c                                         :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: gbaconni <gbaconni@42lausanne.ch>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/08/18 18:13:35 by gbaconni          #+#    #+#             */
+/*   Updated: 2021/08/20 10:49:02 by gbaconni         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdlib.h>
+
+static int	ft_abs(int n)
+{
+	if (n < 0)
+		n = -n;
+	return (n);
+}
+
+int	*ft_range(int min, int max)
+{
+	int	*range;
+	int	size;
+	int	i;
+
+	range = NULL;
+	if (min >= max)
+		return (range);
+	else
+		size = ft_abs(max - min);
+	range = (int *) malloc(size * sizeof(int));
+	i = 0;
+	while (i < size)
+	{
+		range[i] = min + i;
+		i++;
+	}
+	return (range);
+}
diff --git a/C_07/git_old2/ex01/main.c b/C_07/git_old2/ex01/main.c
new file mode 100644
index 0000000..3e9f989
--- /dev/null
+++ b/C_07/git_old2/ex01/main.c
@@ -0,0 +1,52 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   main.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: gbaconni <gbaconni@42lausanne.ch>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/08/18 18:11:09 by gbaconni          #+#    #+#             */
+/*   Updated: 2021/08/19 16:11:21 by gbaconni         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+int	*ft_range(int min, int max);
+
+static int	ft_abs(int n)
+{
+	if (n < 0)
+		n = -n;
+	return (n);
+}
+
+int	main(void)
+{
+	int	i;
+	int	min;
+	int	max;
+	int	size;
+	int	*result;
+
+	min = 0;
+	max = 0;
+	printf("Input Min: ");
+	scanf("%d", &min);
+	printf("Input Max: ");
+	scanf("%d", &max);
+	result = ft_range(min, max);
+	printf("min=%d max=%d (ft_range)\nresult:\n", min, max);
+	size = ft_abs(max - min);
+	printf("size=%d\n", size);
+	i = 0;
+	while (i < size)
+	{
+		printf("result[%d] = %d\n", i, result[i]);
+		i++;
+	}
+	return (0);
+}
diff --git a/C_07/git_old2/ex01/main.sh b/C_07/git_old2/ex01/main.sh
new file mode 100755
index 0000000..292faee
--- /dev/null
+++ b/C_07/git_old2/ex01/main.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+set -e
+#norminette -R CheckForbiddenSourceHeader ft_*.c
+norminette -R CheckForbiddenSourceHeader
+gcc -Wall -Wextra -Werror -o a.out *.c
+echo $(basename $PWD):
+./a.out
+rm -f a.out
diff --git a/C_07/git_old2/ex02/ft_ultimate_range.c b/C_07/git_old2/ex02/ft_ultimate_range.c
new file mode 100644
index 0000000..0ecabb9
--- /dev/null
+++ b/C_07/git_old2/ex02/ft_ultimate_range.c
@@ -0,0 +1,61 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_ultimate_range.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: gbaconni <gbaconni@42lausanne.ch>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/08/18 18:13:35 by gbaconni          #+#    #+#             */
+/*   Updated: 2021/08/20 10:49:32 by gbaconni         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdlib.h>
+
+static int	ft_abs(int n)
+{
+	if (n < 0)
+		n = -n;
+	return (n);
+}
+
+int	*ft_range(int min, int max)
+{
+	int	*range;
+	int	size;
+	int	i;
+
+	range = NULL;
+	if (min >= max)
+		return (range);
+	else
+		size = ft_abs(max - min);
+	range = (int *) malloc(size * sizeof(int));
+	i = 0;
+	while (i < size)
+	{
+		range[i] = min + i;
+		i++;
+	}
+	return (range);
+}
+
+int	ft_ultimate_range(int **range, int min, int max)
+{
+	int	*r;
+	int	size;
+
+	(void) range;
+	r = NULL;
+	size = 0;
+	if (min >= max)
+	{
+		*range = r;
+		return (size);
+	}
+	else
+		size = ft_abs(max - min);
+	r = ft_range(min, max);
+	*range = r;
+	return (size);
+}
diff --git a/C_07/git_old2/ex02/main.c b/C_07/git_old2/ex02/main.c
new file mode 100644
index 0000000..582dc59
--- /dev/null
+++ b/C_07/git_old2/ex02/main.c
@@ -0,0 +1,44 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   main.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: gbaconni <gbaconni@42lausanne.ch>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/08/18 18:11:09 by gbaconni          #+#    #+#             */
+/*   Updated: 2021/08/18 18:31:33 by gbaconni         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+int	ft_ultimate_range(int **range, int min, int max);
+
+int	main(void)
+{
+	int	i;
+	int	min;
+	int	max;
+	int	size;
+	int	*range;
+
+	min = 0;
+	max = 0;
+	size = 0;
+	printf("Input Min: ");
+	scanf("%d", &min);
+	printf("Input Max: ");
+	scanf("%d", &max);
+	size = ft_ultimate_range(&range, min, max);
+	printf("size=%d min=%d max=%d (ft_ultimate_range)\nrange:\n", size, min, max);
+	i = 0;
+	while (i < size)
+	{
+		printf("range[%d] = %d\n", i, range[i]);
+		i++;
+	}
+	return (0);
+}
diff --git a/C_07/git_old2/ex02/main.sh b/C_07/git_old2/ex02/main.sh
new file mode 100755
index 0000000..292faee
--- /dev/null
+++ b/C_07/git_old2/ex02/main.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+set -e
+#norminette -R CheckForbiddenSourceHeader ft_*.c
+norminette -R CheckForbiddenSourceHeader
+gcc -Wall -Wextra -Werror -o a.out *.c
+echo $(basename $PWD):
+./a.out
+rm -f a.out
diff --git a/C_07/git_old2/ex03/ft_strjoin.c b/C_07/git_old2/ex03/ft_strjoin.c
new file mode 100644
index 0000000..11efb73
--- /dev/null
+++ b/C_07/git_old2/ex03/ft_strjoin.c
@@ -0,0 +1,85 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strjoin.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: gbaconni <gbaconni@42lausanne.ch>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/08/19 11:25:51 by gbaconni          #+#    #+#             */
+/*   Updated: 2021/08/20 11:41:49 by gbaconni         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+static int	ft_strlen(char *str)
+{
+	int	len;
+
+	len = 0;
+	while (str[len] != '\0')
+		len++;
+	return (len);
+}
+
+char	*ft_strcat(char *dest, char *src)
+{
+	char			*s1;
+	char			*s2;
+
+	s1 = dest;
+	s2 = src;
+	while (*s1 != '\0')
+		s1++;
+	while (*s2 != '\0')
+		*s1++ = *s2++;
+	*s1 = '\0';
+	return (dest);
+}
+
+int	ft_strslen(int size, char **strs, char *sep)
+{
+	int		len;
+	int		i;
+
+	len = 1;
+	i = 0;
+	while (i < size)
+	{
+		len += ft_strlen(strs[i]);
+		if (i < size - 1)
+			len += ft_strlen(sep);
+		i++;
+	}
+	return (len);
+}
+
+char	*ft_strjoin(int size, char **strs, char *sep)
+{
+	char	*str;
+	int		len;
+	int		i;
+
+	if (size == 0)
+	{
+		str = (char *) malloc(sizeof(char));
+		*str = '\0';
+		return (str);
+	}
+	len = ft_strslen(size, strs, sep);
+	str = (char *) malloc(len * sizeof(char));
+	if (str == NULL)
+		return (NULL);
+	*str = '\0';
+	i = 0;
+	while (i < size)
+	{
+		ft_strcat(str, strs[i]);
+		if (i < size - 1)
+			ft_strcat(str, sep);
+		i++;
+	}
+	return (str);
+}
diff --git a/C_07/git_old2/ex03/main.c b/C_07/git_old2/ex03/main.c
new file mode 100644
index 0000000..dd29822
--- /dev/null
+++ b/C_07/git_old2/ex03/main.c
@@ -0,0 +1,42 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   main.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: gbaconni <gbaconni@42lausanne.ch>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/08/20 09:34:53 by gbaconni          #+#    #+#             */
+/*   Updated: 2021/08/20 09:36:09 by gbaconni         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+char	*ft_strjoin(int size, char **strs, char *sep);
+
+int	main(void)
+{
+	int		i;
+	char	*sep;
+	char	**strs;
+	char	*result;
+
+	sep = "";
+	strs = malloc(3 * sizeof(*strs));
+	sep	= (char *) malloc(32 * sizeof(char));
+	i = 0;
+	while (i < 3)
+	{
+		strs[i] = (char *) malloc(32 * sizeof(char));
+		printf("Input String #%d [Max 31]: ", i + 1);
+		scanf("%s", strs[i++]);
+	}
+	printf("Input Separator: ");
+	scanf("%s", sep);
+	result = ft_strjoin(i, strs, sep);
+	printf("size=%d sep=%s result=%s (ft_strjoin)\n", i, sep, result);
+	return (0);
+}
diff --git a/C_07/git_old2/ex03/main.sh b/C_07/git_old2/ex03/main.sh
new file mode 100755
index 0000000..5481183
--- /dev/null
+++ b/C_07/git_old2/ex03/main.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+set -e
+rm -f a.out
+#norminette -R CheckForbiddenSourceHeader
+norminette -R CheckForbiddenSourceHeader ft_*.c
+gcc -Wall -Wextra -Werror -o a.out ft_*.c main.c
+echo $(basename $PWD):
+./a.out
+rm -f a.out