first commit

ended/C00/ex00/ft_putchar.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+#include <unistd.h>
+
+void	ft_putchar(char c)
+{
+	write(1, &c, 1);
+}

ended/C00/ex01/ft_print_alphabet.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <unistd.h>
+
+void	ft_print_alphabet(void)
+{
+	char	ch;
+
+	ch = 'a';
+	while (ch <= 'z')
+	{
+		write(1, &ch, 1);
+		ch++;
+	}
+}

ended/C00/ex02/ft_print_reverse_alphabet.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <unistd.h>
+
+void	ft_print_reverse_alphabet(void)
+{	
+	char	ch;
+
+	ch = 'z';
+	while (ch >= 'a')
+	{
+		write(1, &ch, 1);
+		ch--;
+	}
+}

ended/C00/ex03/ft_print_numbers.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <unistd.h>
+
+void	ft_print_numbers(void)
+{
+	char	n;
+
+	n = '0';
+	while (n <= '9')
+	{
+		write(1, &n, 1);
+		n++;
+	}
+}

ended/C00/ex04/ft_is_negative.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <unistd.h>
+
+void	ft_is_negative(int n)
+{
+	if (n < 0)
+	{
+		write(1, "N", 1);
+	}
+	else
+	{
+		write(1, "P", 1);
+	}
+}

ended/C00/ex05/ft_print_comb.c

@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <unistd.h>
+
+void	ft_print_nb(char a, char b, char c)
+{
+	write(1, &a, 1);
+	write(1, &b, 1);
+	write(1, &c, 1);
+}
+
+void	ft_print_comb(void)
+{
+	char	a;
+	char	b;
+	char	c;
+
+	a = '0';
+	while (a <= '7')
+	{
+		b = a + 1;
+		while (b <= '8')
+		{
+			c = b + 1;
+			while (c <= '9')
+			{
+				ft_print_nb(a, b, c);
+				if (a != '7')
+				{
+					write(1, ", ", 2);
+				}
+				c++;
+			}
+			b++;
+		}
+		a++;
+	}
+}

ended/C00/ex06/ft_print_comb2.c

@@ -0,0 +1,57 @@
+#include <stdio.h>
+#include <unistd.h>
+
+void	convert_nb(char nb1, char nb1_10, char nb2, char nb2_10)
+{
+	char	r_nb1;
+	char	r_nb1_10;
+	char	r_nb2;
+	char	r_nb2_10;
+
+	r_nb1 = nb1 + 48;
+	r_nb1_10 = nb1_10 + 48;
+	r_nb2 = nb2 + 48;
+	r_nb2_10 = nb2_10 + 48;
+	write(1, &r_nb2_10, 1);
+	write(1, &r_nb2, 1);
+	write(1, " ", 1);
+	write(1, &r_nb1_10, 1);
+	write(1, &r_nb1, 1);
+}
+
+void	get_nb(char a, char b)
+{
+	char	nb1;
+	char	nb2;
+	char	nb1_10;
+	char	nb2_10;
+
+	nb1 = a % 10;
+	nb2 = b % 10;
+	nb1_10 = a / 10;
+	nb2_10 = b / 10;
+	convert_nb(nb1, nb1_10, nb2, nb2_10);
+}
+
+void	ft_print_comb2(void)
+{
+	char	nb1;
+	char	nb2;
+
+	nb1 = 0;
+	nb2 = 0;
+	while (nb2 <= 98)
+	{
+		nb1 = nb2 + 1;
+		while (nb1 <= 99)
+		{
+			get_nb(nb1, nb2);
+			nb1++;
+			if (nb2 < 98 || nb1 < 99)
+			{
+				write(1, ", ", 2);
+			}
+		}
+		nb2++;
+	}
+}