0208-splash

 #include <stdlib.h>

char	*ft_strncpy(char *dest, char *src, unsigned int n)
{
	unsigned int i;

	i = 0;
	while (src[i] && i < n)
	{
		dest[i] = src[i];
		i++;
	}
	while (i < n)
	{
		dest[i] = '\0';
		i++;
	}
	dest[i] = '\0';
	return (dest);
}

int		is_charset(char c, char *charset)
{
	int		j;

	j = 0;
	while (charset[j])
	{
		if (c == charset[j])
			return (1);
		j++;
	}
	return (0);
}

int		count_words(char *str, char *charset)
{
	int		count;
	int		i;

	i = 0;
	count = 0;
	while (str[i])
	{
		while (str[i] && is_charset(str[i], charset))
			i++;
		if (str[i] && !is_charset(str[i], charset))
			count++;
		while (str[i] && !is_charset(str[i], charset))
			i++;
	}
	return (count);
}

char	*ft_strdup(char *str, char *charset)
{
	char	*dest;
	int		i;
	int		j;
	int		count;

	i = 0;
	j = 0;
	count = 0;
	while (str[i])
	{
		if (is_charset(str[i], charset))
			break ;
		i++;
	}
	if (!(dest = (char*)malloc(sizeof(char) * i + 1)))
			return (NULL);
	dest = ft_strncpy(dest, str, i);
	return (dest);
}

char	**ft_split(char *str, char *charset)
{
	char	**tab;
	int		i;
	int		k;

	if (!(tab = (char**)malloc(sizeof(char*) * (count_words(str, charset) + 1)))
		|| !str)
		return (NULL);
	i = 0;
	k = 0;
	while (str[i] && k < count_words(str, charset))
	{
		while (is_charset(str[i], charset))
			i++;
		if (str[i] && !is_charset(str[i], charset))
		{
			tab[k] = ft_strdup(str + i, charset);
			k++;
		}
		while (str[i] && !is_charset(str[i], charset))
			i++;
	}
	tab[k] = 0;
	return (tab);
}

#include <stdio.h>

int		main(int ac, char **av)
{
	int		i;
	char **split;

	i = 0;
	if (ac != 3)
		return (0);
	split = ft_split(av[1], av[2]);
	while (split[i])
	{
		printf("%s\n", split[i]);
		i++;
	}
	return (0);
}