allerrrrrrrr

#include <stdlib.h>

int     ultimate_strlen(char **strs, int size)
{
    int i;
    int j;
    int total;

    i = 0;
    j = 0;
    total = 0;
    while (i < size)
    {
        while (strs[i][j])
        {
            total++;
            j++;
        }
        j = 0;
        i++;
    }
    return (total);
}

int     ft_strlen1(char *str)
{
    int i;

    i = 0;
    while (str[i])
        i++;
    return (i);
}

char    *ft_ultimate_concat(char *tab, char **strs, char *sep, int size)
{
    int i;
    int j;
    int k;

    i = 0;

    j = 0;
    k = 0;
    while (i < size)
    {
        j = 0;
        while (strs[i][j])
        {
            tab[k++] = strs[i][j++];
        }
        if (i != size - 1)
        {
            j = 0;
            while (sep[j])
            {
                tab[k++] = sep[j++];
            }
        }
        i++;
    }
    return (tab);
}

char    *ft_strjoin(int size, char **strs, char *sep)
{
    int     i;
    char    *tab;

    i = 0;
    tab = malloc(size != 0 ? ultimate_strlen(strs, size) + ft_strlen1(sep) *
            (size - 1) * sizeof(char) + 1 : 1);
    if (size == 0)
    {
        *tab = '\0';
        return (tab);
    }
    ft_ultimate_concat(tab, strs, sep, size);
    i = ultimate_strlen(strs, size) + ft_strlen1(sep) * (size - 1);
    tab[i] = '\0';
    return (tab);
}