commit 28fb6502a24732a3b5c61774e2cad93d8e268a5f
Author: lclerel- lclerel- <lclerel-@f1r4s20.paris.42.school>
Date:   Thu Mar 19 15:15:53 2026 +0100

    Push Exos

diff --git a/ex0/ft_strdup.c b/ex0/ft_strdup.c
new file mode 100644
index 0000000..4836dbe
--- /dev/null
+++ b/ex0/ft_strdup.c
@@ -0,0 +1,72 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strdup.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   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       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+#include <stdlib.h>
+
+char	*ft_strdup(char *src)
+{
+	int		i;
+	int		len;
+	char	*dst;
+
+	i = 0;
+	len = 0;
+	while (src[len])
+	{
+		len++;
+	}
+	dst = malloc(sizeof(char) * (len + 1));
+	if (dst == NULL)
+	{
+		return (NULL);
+	}
+	while (i < len)
+	{
+		dst[i] = src[i];
+		i++;
+	}
+	dst[i] = '\0';
+	return (dst);
+}
+
+/*
+void    ft_putchar(char chara)
+{
+        write(1, &chara, 1);
+}
+
+void    ft_putstr(char *str)
+{
+        int     i;
+
+        i = 0;
+        while (str[i])
+        {
+                ft_putchar(str[i]);
+                i++;
+        }
+}
+
+int	main(void)
+{
+	char	*dest;
+
+	dest = ft_strdup("TestTest");
+	
+	if (dest == NULL)
+	{
+		return (1);
+	}
+	ft_putstr(dest);
+	free(dest);
+}*/
diff --git a/ex1/ft_range.c b/ex1/ft_range.c
new file mode 100644
index 0000000..0e01a77
--- /dev/null
+++ b/ex1/ft_range.c
@@ -0,0 +1,116 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_range.c                                         :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: lclerel- <lclerel-@learner.42.tech>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/03/16 14:44:51 by lclerel-          #+#    #+#             */
+/*   Updated: 2026/03/19 14:05:04 by lclerel-         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdlib.h>
+#include <unistd.h>
+
+int	*ft_range(int min, int max)
+{
+	int	*range;
+	int	i;
+	int	size;
+
+	i = 0;
+	if (min >= max)
+	{
+		return (NULL);
+	}
+	size = max - min;
+	range = malloc(sizeof(int) * size);
+	if (!range)
+	{
+		return (NULL);
+	}
+	while (i < size)
+	{
+		range[i] = min + i;
+		i++;
+	}
+	return (range);
+}
+
+/*void	ft_putchar(char c)
+{
+	write(1, &c, 1);
+}
+
+void	ft_putnbr(int nb)
+{
+	char	value;
+
+	if (nb == -2147483648)
+	{
+		write(1, "-2147483648", 11);
+		return ;
+	}
+	if (nb < 0)
+	{
+		write(1, "-", 1);
+		nb = -nb;
+	}
+	if (nb > 9)
+	{
+		ft_putnbr(nb / 10);
+	}
+	value = nb % 10 + '0';
+	write(1, &value, 1);
+}
+
+int	main(void)
+{
+	int	*tab;
+	int	min = 2;
+	int	max = 10;
+	int	i = 0;
+
+	// TEST 1 : Cas Normal
+	tab = ft_range(min, max);
+	write(1, "/~~~Test 1~~~\\\n", 15);
+	write(1, "> Min : ", 8);
+	ft_putnbr(min);
+	write(1, " <\n> Max : ", 11);
+	ft_putnbr(max);
+	write(1, " <\n> Resultat : ", 16);
+	if (!tab)
+		write(1, "NULL", 4);
+	else
+	{
+		while (i < (max - min))
+		{
+			ft_putnbr(tab[i]);
+			if (i < (max - min - 1))
+				write(1, ", ", 2);
+			i++;
+		}
+	}
+	write(1, " <\n\\~~~Test 1~~~/\n\n", 18);
+	free(tab);
+	// TEST 2 : Cas Erreur (Min > Max)
+	int min_err = 9;
+	int max_err = 2;
+	int *tab_err = ft_range(min_err, max_err);
+
+	write(1, "/~~~Test 2~~~\\\n", 15);
+	write(1, "> Min : ", 8);
+	ft_putnbr(min_err);
+	write(1, " <\n> Max : ", 11);
+	ft_putnbr(max_err);
+	write(1, " <\n> Resultat : ", 16);
+	if (!tab_err)
+		write(1, "NULL (OK)", 9);
+	else
+		write(1, "ERREUR : Devrait etre NULL", 26);
+	write(1, " <\n\\~~~Test 2~~~/\n", 18);
+	if (tab_err)
+		free(tab_err);
+	return (0);
+}*/
diff --git a/ex2/ft_ultimate_range.c b/ex2/ft_ultimate_range.c
new file mode 100644
index 0000000..50f2a71
--- /dev/null
+++ b/ex2/ft_ultimate_range.c
@@ -0,0 +1,125 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_ultimate_range.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   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       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+#include <stdlib.h>
+
+int	ft_ultimate_range(int **range, int min, int max)
+{
+	int	i;
+	int	*tab;
+	int	size;
+
+	i = 0;
+	if (min >= max)
+	{
+		*range = NULL;
+		return (0);
+	}
+	size = max - min;
+	tab = malloc(sizeof(int) * size);
+	if (!tab)
+	{
+		*range = NULL;
+		return (-1);
+	}
+	while (i < size)
+	{
+		tab[i] = min + i;
+		i++;
+	}
+	*range = tab;
+	return (size);
+}
+
+/*void	ft_putchar(char c)
+{
+	write(1, &c, 1);
+}
+
+void	ft_putnbr(int nb)
+{
+	char	value;
+
+	if (nb == -2147483648)
+	{
+		write(1, "-2147483648", 11);
+		return ;
+	}
+	if (nb < 0)
+	{
+		write(1, "-", 1);
+		nb = -nb;
+	}
+	if (nb > 9)
+	{
+		ft_putnbr(nb / 10);
+	}
+	value = nb % 10 + '0';
+	write(1, &value, 1);
+}
+
+int	main(void)
+{
+	int	*tab;
+	int	min = 2;
+	int	max = 10;
+	int	size;
+	// Integers pour les errors
+	int	max_err = 2;
+        int	min_err = 9;
+        int	*tab_err;
+        int	size_err;
+	// Integers pour le 3eme Test
+	int	max2 = -5;
+	int	min2 = -1;
+	int	*tab2;
+	int	size2;
+	size_err = ft_ultimate_range(&tab_err ,min_err, max_err);
+	size = ft_ultimate_range(&tab, min, max);
+	size2 = ft_ultimate_range(&tab2, min2, max2);
+	if (size == -1)
+	{
+		return (1);
+	}
+	// Test 1, Test Min 2 Max 10.
+	write(1, "/~~~Test 1~~~\\ \n", 16);
+        write(1, "> Min : ", 8);
+        ft_putnbr(min);
+        write(1, " <\n> Max : ", 11);
+        ft_putnbr(max);
+        write(1, " <\n> Resultat : ", 17);
+        ft_putnbr(size);
+        write(1, " <\n\\~~~Test 1~~~/", 18);
+	ft_putchar('\n');
+	// Test 2, Test Min 9 Max 2 (Return Error)
+	write(1, "/~~~Test 2~~~\\ \n", 16);
+        write(1, "> Min : ", 8);
+        ft_putnbr(min_err);
+        write(1, " <\n> Max : ", 11);
+        ft_putnbr(max_err);
+        write(1, " <\n> Resultat : ", 17);
+        ft_putnbr(size_err);
+        write(1, " <\n\\~~~Test 2~~~/", 18);
+	ft_putchar('\n');
+	// Test 3, Test Min -1 Max -5.
+        write(1, "/~~~Test 3~~~\\ \n", 16);
+        write(1, "> Min : ", 8);
+        ft_putnbr(min2);
+        write(1, " <\n> Max : ", 11);
+        ft_putnbr(max2);
+	write(1, " <\n> Resultat : ", 17);
+	ft_putnbr(size2);
+        write(1, " <\n\\~~~Test 3~~~/", 18);
+        ft_putchar('\n');
+	free(tab);
+}*/
diff --git a/ex3/ft_strjoin.c b/ex3/ft_strjoin.c
new file mode 100644
index 0000000..62d40d4
--- /dev/null
+++ b/ex3/ft_strjoin.c
@@ -0,0 +1,133 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strjoin.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   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       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+#include <stdlib.h>
+
+int	ft_strlen(char *str)
+{
+	int	i;
+
+	i = 0;
+	while (str[i] != '\0')
+	{
+		i++;
+	}
+	return (i);
+}
+
+int	get_total_len(int size, char **strs, char *sep)
+{
+	int	i;
+	int	total;
+
+	i = 0;
+	total = 0;
+	while (i < size)
+	{
+		total = total + ft_strlen(strs[i]);
+		if (i < size - 1)
+		{
+			total = total + ft_strlen(sep);
+		}
+		i++;
+	}
+	return (total);
+}
+
+char	*ft_strcat(char *dest, char *src)
+{
+	int	i;
+	int	j;
+
+	i = 0;
+	j = 0;
+	while (dest[i])
+	{
+		i++;
+	}
+	while (src[j])
+	{
+		dest[i + j] = src[j];
+		j++;
+	}
+	dest[i + j] = '\0';
+	return (dest);
+}
+
+char	*ft_strjoin(int size, char **strs, char *sep)
+{
+	char	*res;
+	int		i;
+	int		len;
+
+	i = 0;
+	if (size == 0)
+	{
+		res = malloc(1);
+		if (res)
+			res[0] = '\0';
+		return (res);
+	}
+	len = get_total_len(size, strs, sep);
+	res = malloc(sizeof(char) * (len + 1));
+	if (!res)
+		return (NULL);
+	res[0] = '\0';
+	while (i < size)
+	{
+		ft_strcat(res, strs[i]);
+		if (i < size - 1)
+			ft_strcat(res, sep);
+		i++;
+	}
+	return (res);
+}
+/*
+void	ft_putchar(char chara)
+{
+	write(1, &chara, 1);
+}
+
+void	ft_putstr(char *str)
+{
+	int	i;
+
+	i = 0;
+	while (str[i])
+	{
+		ft_putchar(str[i]);
+		i++;
+	}
+}
+
+int	main(void)
+{
+	char	*tab[5];
+	char	*result;
+	char	*space;
+
+	tab[0] = "Salut";
+	tab[1] = "Je";
+	tab[2] = "Suis";
+	tab[3] = "Lumi";
+	tab[4] = "!";	
+	space = " ";
+	result = ft_strjoin(5, tab, space);
+	if (result)
+	{
+		ft_putstr(result);
+		ft_putstr("\n");
+		free(result);
+	}
+	return (0);
+}*/
diff --git a/ex4/ft_convert_base.c b/ex4/ft_convert_base.c
new file mode 100644
index 0000000..273db32
--- /dev/null
+++ b/ex4/ft_convert_base.c
@@ -0,0 +1,200 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_convert_base.c                                  :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: lclerel- <lclerel-@learner.42.tech>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/03/17 14:20:07 by lclerel-          #+#    #+#             */
+/*   Updated: 2026/03/19 11:36:19 by lclerel-         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+#include <stdlib.h>
+
+void	ft_putstr(char *str);
+
+int		ft_strlen(char *str);
+
+int		ft_nbrlen(long nbr, int base_size);
+
+int		check_base(char *base);
+
+int	ft_index(char c, char *base)
+{
+	int	i;
+
+	i = 0;
+	while (base[i])
+	{
+		if (base[i] == c)
+			return (i);
+		i++;
+	}
+	return (-1);
+}
+
+int	ft_atoi_base(char *str, char *base)
+{
+	int		i;
+	int		sign;
+	long	res;
+
+	res = 0;
+	i = 0;
+	sign = 1;
+	while (str[i] == ' ' || (str[i] >= 9 && str[i] <= 13))
+		i++;
+	while (str[i] == '-' || str[i] == '+')
+	{
+		if (str[i++] == '-')
+			sign *= -1;
+	}
+	while (str[i])
+	{
+		if (str[i] && ft_index(str[i], base) != -1)
+		{
+			res = (res * ft_strlen(base)) + ft_index(str[i], base);
+			i++;
+		}
+	}
+	return (res * sign);
+}
+
+void	ft_populate_res(char *res, long n, char *base_to, int size)
+{
+	int	base_len;
+
+	base_len = ft_strlen(base_to);
+	res[size] = '\0';
+	if (n == 0)
+		res[0] = base_to[0];
+	if (n < 0)
+	{
+		res[0] = '-';
+		n = -n;
+	}
+	while (n > 0)
+	{
+		res[size - 1] = base_to[n % base_len];
+		n /= base_len;
+		size--;
+	}
+}
+
+char	*ft_convert_base(char *nbr, char *base_from, char *base_to)
+{
+	long	n;
+	char	*res;
+	int		size;
+
+	if (!nbr || !base_from || !base_to)
+		return (NULL);
+	if (!check_base(base_from) || !check_base(base_to))
+		return (NULL);
+	n = ft_atoi_base(nbr, base_from);
+	size = ft_nbrlen(n, ft_strlen(base_to));
+	res = malloc(sizeof(char) * (size + 1));
+	if (!res)
+		return (NULL);
+	ft_populate_res(res, n, base_to, size);
+	return (res);
+}
+/*
+int	main(void)
+{
+	char	*result;
+	char	*hex;
+	char	*bin;
+	char	*dec;
+	char	*vif;
+
+	hex = "0123456789abcdef";
+	dec = "0123456789";
+	bin = "01";
+	vif = "poneyvif";
+	// Test 1 : 42 > Dec to Bin
+	ft_putstr("Test avec 42 | ");
+	ft_putstr("Base From : Decimal (Base 10), Base To : Binary (Base 2)");
+	write(1, "\n", 1);
+	result = ft_convert_base("42", dec, bin);
+	if (result == NULL)
+	{
+		write(1, "Erreur.", 7);
+	}
+	ft_putstr("Resultat : ");
+	ft_putstr(result);
+	write(1, "\n", 1);
+	free(result);
+	// Test 2 : 2a (42) > Hex to Vif
+	ft_putstr("Test avec 42 (2a) | ");
+	ft_putstr("Base From : Hexadecimal (Base 16), Base To : poneyvif (Base 8)");
+	write(1, "\n", 1);
+	result = ft_convert_base("2a", hex, vif);
+	if (result == NULL)
+	{
+		write(1, "Erreur.", 7);
+	}
+	ft_putstr("Resultat : ");
+	ft_putstr(result);
+	write(1, "\n", 1);
+	free(result);
+	// Test 3 : 0 > Dec to Bin
+	ft_putstr("Test avec 0 | ");
+	ft_putstr("Base From : Decimal (Base 10), Base To : Binary (Base 2)");
+	write(1, "\n", 1);
+	result = ft_convert_base("0", dec, bin);
+	if (result == NULL)
+	{
+		write(1, "Erreur.", 7);
+	}
+	ft_putstr("Resultat : ");
+	ft_putstr(result);
+	write(1, "\n", 1);
+	free(result);
+	// Test 4 : -2147483648 > Dec to Hex
+	ft_putstr("Test avec -2147483648 | ");
+	ft_putstr("Base From : Decimal (Base 10), Base To : Hexadecimal (Base 16)");
+	write(1, "\n", 1);
+	result = ft_convert_base("-2147483648", dec, hex);
+	if (result == NULL)
+	{
+		write(1, "Erreur.", 7);
+	}
+	ft_putstr("Resultat : ");
+	ft_putstr(result);
+	write(1, "\n", 1);
+	free(result);
+	// Test 5 : Bordel Ultime > Binary to Dec
+	ft_putstr("Test avec ---+--101010 | ");
+	ft_putstr("Base From : Binary (Base 2), Base To : Decimal (Base 10)");
+	write(1, "\n", 1);
+	result = ft_convert_base(" ---+--101010", bin, dec);
+	if (result == NULL)
+	{
+		write(1, "Erreur.", 7);
+	}
+	ft_putstr("Resultat : ");
+	ft_putstr(result);
+	write(1, "\n", 1);
+	free(result);
+	// Test 6 : NULL > Binary to Dec
+	// ft_putstr("Test avec NULL | ");
+	ft_putstr("Base From : Binary (Base 2), Base To : Decimal (Base 10)");
+	write(1, "\n", 1);
+	result = ft_convert_base(NULL, bin, dec);
+	if (result == NULL)
+	{
+		write(1, "Erreur. NULL est mis comme variable", 35);
+		write(1, "\n", 1);
+	}
+	else
+	{
+		ft_putstr("Resultat : ");
+		ft_putstr(result);
+		write(1, "\n", 1);
+		free(result);
+	}
+	return (0);
+}*/
diff --git a/ex4/ft_convert_base2.c b/ex4/ft_convert_base2.c
new file mode 100644
index 0000000..f3efc4f
--- /dev/null
+++ b/ex4/ft_convert_base2.c
@@ -0,0 +1,82 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_convert_base2.c                                 :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: lclerel- <lclerel-@learner.42.tech>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/03/17 14:22:20 by lclerel-          #+#    #+#             */
+/*   Updated: 2026/03/17 18:16:30 by lclerel-         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+
+int	ft_strlen(char *str)
+{
+	int	i;
+
+	i = 0;
+	while (str[i] != '\0')
+	{
+		i++;
+	}
+	return (i);
+}
+
+void	ft_putstr(char *str)
+{
+	int	i;
+
+	i = 0;
+	while (str[i])
+	{
+		write(1, &str[i], 1);
+		i++;
+	}
+}
+
+int	ft_nbrlen(long nbr, int base_size)
+{
+	int	len;
+
+	len = 0;
+	if (nbr <= 0)
+	{
+		len++;
+		if (nbr < 0)
+			nbr = -nbr;
+	}
+	while (nbr > 0)
+	{
+		nbr /= base_size;
+		len++;
+	}
+	return (len);
+}
+
+int	check_base(char *base)
+{
+	int	i;
+	int	j;
+
+	i = 0;
+	if (!base[0] || !base[1])
+		return (0);
+	while (base[i])
+	{
+		if (base[i] == '+' || base[i] == '-'
+			|| (base[i] >= 9 && base[i] <= 13)
+			|| base[i] == 32)
+			return (0);
+		j = i + 1;
+		while (base[j])
+		{
+			if (base[i] == base[j])
+				return (0);
+			j++;
+		}
+		i++;
+	}
+	return (1);
+}
diff --git a/ex5/ft_split.c b/ex5/ft_split.c
new file mode 100644
index 0000000..5ece03c
--- /dev/null
+++ b/ex5/ft_split.c
@@ -0,0 +1,117 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_split.c                                         :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   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       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+#include <stdlib.h>
+
+int	ft_sep(char c, char *charset)
+{
+	int	i;
+
+	i = 0;
+	while (charset[i])
+	{
+		if (c == charset[i])
+			return (1);
+		i++;
+	}
+	return (0);
+}
+
+int	ft_words(char *str, char *charset)
+{
+	int	i;
+	int	count;
+
+	count = 0;
+	i = 0;
+	while (str[i])
+	{
+		if (ft_sep(str[i], charset) == 0
+			&& (i == 0 || ft_sep(str[i - 1], charset) == 1))
+		{
+			count++;
+		}
+		i++;
+	}
+	return (count);
+}
+
+char	*ft_get_word(char *str, char *charset)
+{
+	char	*word;
+	int		i;
+	int		len;
+
+	len = 0;
+	i = 0;
+	while (str[len] && ft_sep(str[len], charset) == 0)
+		len++;
+	word = malloc(sizeof(char) * (len + 1));
+	if (!word)
+		return (NULL);
+	while (i < len)
+	{
+		word[i] = str[i];
+		i++;
+	}
+	word[i] = '\0';
+	return (word);
+}
+
+char	**ft_split(char *str, char *charset)
+{
+	char	**res;
+	int		i;
+	int		j;
+
+	i = 0;
+	j = 0;
+	res = malloc(sizeof(char *) * (ft_words(str, charset) + 1));
+	if (!res)
+		return (NULL);
+	while (str[i])
+	{
+		while (str[i] && ft_sep(str[i], charset) == 1)
+			i++;
+		if (str[i])
+		{
+			res[j++] = ft_get_word(&str[i], charset);
+			while (str[i] && ft_sep(str[i], charset) == 0)
+				i++;
+		}
+	}
+	res[j] = 0;
+	return (res);
+}
+
+/*int	main(void)
+{
+	char	**res;
+	int		i;
+	int		j;
+	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])
+	{
+		j = 0;
+		while (res[i][j])
+		{
+			write(1, &res[i][j], 1);
+			j++;
+		}
+		write(1, "\n", 1);
+		i++;
+	}
+	return (0);
+}*/