diff --git a/Makefile b/Makefile
index e50b29e..0b8307b 100755
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ SRCS +=	str/ft_len.c str/ft_lcpy.c str/ft_lcat.c str/ft_chr.c \
 		str/ft_rchr.c str/ft_ncmp.c str/ft_nstr.c str/ft_dup.c \
 		str/ft_sub.c str/ft_join.c str/ft_trim.c str/ft_split.c  \
 		str/ft_rev.c str/ft_mapi.c str/ft_iteri.c str/ft_join_with.c \
-		str/ft_new.c str/ft_append.c 
+		str/ft_new.c str/ft_append.c str/ft_cmp.c 
 
 SRCS +=	conv/ft_toupper.c conv/ft_tolower.c conv/ft_atoi.c conv/ft_itoa.c \
 		conv/ft_itox.c conv/ft_utoa.c
diff --git a/libft.h b/libft.h
index 14abb23..ce130ba 100755
--- a/libft.h
+++ b/libft.h
@@ -68,6 +68,7 @@ size_t	ft_strlcpy(char *dst, const char *src, size_t dstsize);
 size_t	ft_strlen(const char *s);
 size_t	ft_strlen_to(const char *str, char ch);
 int		ft_strncmp(const char *s1, const char *s2, size_t n);
+int		ft_strcmp(const char *s1, const char *s2);
 char	*ft_strnstr(const char *haystack, const char *needle, size_t len);
 char	*ft_strrchr(const char *s, int c);
 void	ft_strrev(char **str, unsigned int neg);
diff --git a/printf/ft_printf.c b/printf/ft_printf.c
new file mode 100644
index 0000000..e7cca64
--- /dev/null
+++ b/printf/ft_printf.c
@@ -0,0 +1,39 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_printf.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: narnaud <narnaud@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/10/27 08:09:49 by narnaud           #+#    #+#             */
+/*   Updated: 2021/11/17 09:40:16 by narnaud          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+#include "ft_printf.h"
+
+int	ft_printf(const char *str, ...)
+{
+	va_list		args;
+	size_t		n;
+	size_t		i;
+	const char	*g_types = {"cspdiuxX%"};
+	static int	(*g_printf_fcts[9])(va_list arg, const char *str) = {\
+		va_putchar, va_putstr, va_putptr, va_putnbr, va_putnbr, va_putunsign, \
+		va_putx, va_putx_cap, va_putperc};
+
+	i = 0;
+	va_start (args, str);
+	while (*str)
+	{
+		n = -1;
+		if ((*str == '%' && str++) || !(++i && ft_putchar((int)*str)))
+			while (++n < 9)
+				if (g_types[n] == *str)
+					i += (g_printf_fcts[n])(args, str);
+		str++;
+	}
+	va_end(args);
+	return (i);
+}
diff --git a/printf/ft_putchars.c b/printf/ft_putchars.c
new file mode 100644
index 0000000..7845979
--- /dev/null
+++ b/printf/ft_putchars.c
@@ -0,0 +1,58 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putchars.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: narnaud <narnaud@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/10/27 09:17:03 by narnaud           #+#    #+#             */
+/*   Updated: 2021/11/17 09:57:53 by narnaud          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_printf.h"
+
+int	ft_putchar(int ch)
+{
+	char	c;
+
+	c = (char)ch;
+	write(1, &c, 1);
+	return (1);
+}
+
+int	ft_putstr(char *str)
+{
+	int	i;
+
+	i = 0;
+	if (!str)
+	{
+		ft_putstr("(null)");
+		return (6);
+	}
+	while (str[i])
+		ft_putchar(str[i++]);
+	return (i);
+}
+
+int	va_putchar(va_list va_ch, const char *str)
+{
+	(void)*str;
+	ft_putchar(va_arg(va_ch, int));
+	return (1);
+}
+
+int	va_putstr(va_list va_str, const char *str)
+{
+	(void)*str;
+	return (ft_putstr(va_arg(va_str, char *)));
+}
+
+int	va_putperc(va_list va, const char *str)
+{
+	(void)*str;
+	(void)va;
+	ft_putchar('%');
+	return (1);
+}
diff --git a/printf/ft_putnbrs.c b/printf/ft_putnbrs.c
new file mode 100644
index 0000000..8e4dfe6
--- /dev/null
+++ b/printf/ft_putnbrs.c
@@ -0,0 +1,47 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putnbrs.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: narnaud <narnaud@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/10/27 09:34:01 by narnaud           #+#    #+#             */
+/*   Updated: 2021/12/21 10:06:28 by narnaud          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_printf.h"
+
+int	ft_putnbr(int n, const char *str)
+{
+	char	*n_str;
+	int		ret;
+
+	(void)*str;
+	n_str = ft_itoa(n);
+	ret = ft_putstr(n_str);
+	free(n_str);
+	return (ret);
+}
+
+int	ft_putunsign(unsigned int n, const char *str)
+{
+	char	*n_str;
+	int		ret;
+
+	(void)*str;
+	n_str = ft_utoa(n);
+	ret = ft_putstr(n_str);
+	free(n_str);
+	return (ret);
+}
+
+int	va_putnbr(va_list va, const char *str)
+{
+	return (ft_putnbr(va_arg(va, int), str));
+}
+
+int	va_putunsign(va_list va, const char *str)
+{
+	return (ft_putunsign(va_arg(va, unsigned int), str));
+}
diff --git a/printf/ft_putptr.c b/printf/ft_putptr.c
new file mode 100644
index 0000000..d4d3386
--- /dev/null
+++ b/printf/ft_putptr.c
@@ -0,0 +1,31 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putptr.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: narnaud <narnaud@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/10/27 10:13:07 by narnaud           #+#    #+#             */
+/*   Updated: 2021/12/21 09:50:41 by narnaud          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_printf.h"
+
+int	ft_putptr(void *ptr)
+{
+	char	*str;
+	int		ret;
+
+	str = ft_itox((unsigned long long int)ptr, "0123456789abcdef");
+	ft_putstr("0x");
+	ret = ft_putstr(str);
+	free(str);
+	return (ret + 2);
+}
+
+int	va_putptr(va_list va_ptr, const char *str)
+{
+	(void)*str;
+	return (ft_putptr(va_arg(va_ptr, void *)));
+}
diff --git a/printf/ft_putx.c b/printf/ft_putx.c
new file mode 100644
index 0000000..7652079
--- /dev/null
+++ b/printf/ft_putx.c
@@ -0,0 +1,47 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putx.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: narnaud <narnaud@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/10/27 09:54:24 by narnaud           #+#    #+#             */
+/*   Updated: 2021/11/17 10:24:24 by narnaud          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_printf.h"
+
+int	ft_putx(unsigned int n)
+{
+	char	*str;
+	int		ret;
+
+	str = ft_itox((unsigned long int)n, "0123456789abcdef");
+	ret = ft_putstr(str);
+	free(str);
+	return (ret);
+}
+
+int	ft_putx_cap(unsigned int n)
+{
+	char	*str;
+	int		ret;
+
+	str = ft_itox((unsigned long int)n, "0123456789ABCDEF");
+	ret = ft_putstr(str);
+	free(str);
+	return (ret);
+}
+
+int	va_putx(va_list va_uint, const char *str)
+{
+	(void)*str;
+	return (ft_putx(va_arg(va_uint, unsigned int)));
+}
+
+int	va_putx_cap(va_list va_uint, const char *str)
+{
+	(void)*str;
+	return (ft_putx_cap(va_arg(va_uint, unsigned int)));
+}
diff --git a/str/ft_cmp.c b/str/ft_cmp.c
new file mode 100644
index 0000000..fd5669c
--- /dev/null
+++ b/str/ft_cmp.c
@@ -0,0 +1,32 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strcmp.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: narnaud <narnaud@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/10/18 16:16:37 by narnaud           #+#    #+#             */
+/*   Updated: 2022/03/24 09:22:49 by narnaud          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "../libft.h"
+
+int ft_strcmp(const char *s1, const char *s2)
+{
+    size_t i;
+    int ret;
+    unsigned char *s1cp;
+    unsigned char *s2cp;
+
+    i = 0;
+    s1cp = (unsigned char *)s1;
+    s2cp = (unsigned char *)s2;
+    ret = s1cp[i] - s2cp[i];
+    while ((!ret && s1[i] && s2[i]))
+    {
+        ret = s1cp[i] - s2cp[i];
+        i++;
+    }
+    return (ret);
+}