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Assignment name  : aff_last_param
Expected files   : aff_last_param.c
Allowed functions: write
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Write a program that takes strings as arguments, and displays its last
argument followed by a newline.

If the number of arguments is less than 1, the program displays a newline.

Examples:

$> ./aff_last_param "Zelda" "is" "a" "boy" | cat -e
boy$
$> ./aff_last_param "I read this on internet !" | cat -e
I read this on internet !$
$> ./aff_last_param | cat -e
$

#include <unistd.h>

void	ft_putstr(char *str)
{
	int i = 0;
	while (str[i] != '\0')
		++i;
	write(1, str, i);
}

int	main(int argc, char **argv)
{
	if (argc > 1)
		ft_putstr(argv[argc - 1]);
	write(1, "\n", 1);
	return (0);
}

Assignment name  : aff_first_param
Expected files   : aff_first_param.c
Allowed functions: write
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Write a program that takes strings as arguments, and displays its first
argument followed by a \n.

If the number of arguments is less than 1, the program displays \n.

Example:

$> ./aff_first_param it is at this moment jackson knew | cat -e
it$
$> ./aff_first_param "I bet you can't print me" | cat -e
I bet you can't print me$
$> ./aff_first_param | cat -e
$

#include <unistd.h>

int	ft_strlen(char *str)
{
	int i = 0;
	while (str[i] != '\0')
		++i;
	return (i);
}

int	main(int argc, char **argv)
{
	if (argc >= 2)
		write(1, argv[1], ft_strlen(argv[1]));
	write(1, "\n", 1);
	return (0);
}

Assignment name  : aff_a
Expected files   : aff_a.c
Allowed functions: write
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Write a program that takes a string, and displays the first 'a' character it
encounters in it, followed by a newline. If there are no 'a' characters in the
string, the program just writes a newline. If the number of parameters is not
1, the program displays 'a' followed by a newline.

Example:

$> ./aff_a "abc" | cat -e
a$
$> ./aff_a "RaInB0w d4Sh!" | cat -e
a$
$> ./aff_a "ThE Ck3 Is L|3" | cat -e
$
$> ./aff_a | cat -e
a$

#include <unistd.h>

void	aff_a(char *str)
{
	while (*str != '\0')
	{
		if (*str == 'a')
		{
			write(1, "a", 1);
			break;
		}
		++str;
	}
	write(1, "\n", 1);
}

int		main(int argc, char **argv)
{
	if (argc == 2)
		aff_a(argv[1]);
	else
		write(1, "a\n", 2);

	return (0);
}