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David Gailleton
2025-12-05 17:37:02 +01:00
commit 86c2e68987
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111
01_b/get_next_line.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* get_next_line.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: dgaillet <dgaillet@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/11/21 17:20:41 by dgaillet #+# #+# */
/* Updated: 2025/11/28 13:47:15 by dgaillet ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include "get_next_line.h"
#include <unistd.h>
static int del_before_nl(char buf[BUFFER_SIZE])
{
int nl_i;
int i;
char *temp;
nl_i = index_of_nl(buf, BUFFER_SIZE);
if (nl_i >= 0)
{
temp = ft_substr(buf, nl_i + 1, BUFFER_SIZE - nl_i);
if (!temp)
return (-1);
ft_bzero(buf, BUFFER_SIZE);
i = 0;
while (temp[i])
{
buf[i] = temp[i];
i++;
}
free(temp);
}
return (1);
}
static char *ft_read_one(char buf[BUFFER_SIZE], int fd, char *str)
{
int temp;
str = ft_strjoin_new(str, buf, BUFFER_SIZE);
if (!str)
return (NULL);
ft_bzero(buf, BUFFER_SIZE);
temp = read(fd, buf, BUFFER_SIZE);
if (temp < 0)
{
free(str);
return (NULL);
}
if ((!str || ft_strlen(str) == 0) && temp == 0)
{
free(str);
return (NULL);
}
if (temp == 0)
return (str);
return (str);
}
static char *extract_all_nl(char buf[BUFFER_SIZE], int fd, char *str, int nl_i)
{
int temp;
if (!str)
return (NULL);
while (nl_i < 0)
{
str = ft_read_one(buf, fd, str);
if (!str)
return (NULL);
nl_i = index_of_nl(buf, BUFFER_SIZE);
if (nl_i < 0 && !ft_strlen(buf))
return (str);
}
str = ft_strjoin_new(str, buf, nl_i);
if (!str)
return (NULL);
temp = del_before_nl(buf);
if (temp < 0)
{
free(str);
return (NULL);
}
return (str);
}
char *get_next_line(int fd)
{
static char buf[BUFFER_SIZE + 1];
int nl_i;
int temp;
char *str;
if (fd < 0 || BUFFER_SIZE <= 0)
return (NULL);
nl_i = index_of_nl(buf, BUFFER_SIZE);
if (nl_i >= 0)
{
str = ft_substr(buf, 0, nl_i + 1);
temp = del_before_nl(buf);
if (temp < 0)
return (free(str), NULL);
}
else
str = extract_all_nl(buf, fd, ft_substr("", 0, 1), nl_i);
return (str);
}

30
01_b/get_next_line.h Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* get_next_line.h :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: dgaillet <dgaillet@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/11/21 17:22:03 by dgaillet #+# #+# */
/* Updated: 2025/11/27 18:05:13 by dgaillet ### ########lyon.fr */
/* */
/* ************************************************************************** */
#ifndef GET_NEXT_LINE_H
# define GET_NEXT_LINE_H
# ifndef BUFFER_SIZE
# define BUFFER_SIZE 42
# endif
# include <stdlib.h>
char *get_next_line(int fd);
size_t ft_strlen(const char *s);
char *ft_strjoin_new(char const *s1, char const *s2, size_t limit);
void ft_bzero(void *s, size_t n);
int index_of_nl(char *str, int limit);
char *ft_substr(char const *s, unsigned int start, size_t len);
#endif

102
01_b/get_next_line_utils.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* get_next_line_utils.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: dgaillet <dgaillet@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/11/21 17:21:38 by dgaillet #+# #+# */
/* Updated: 2025/11/27 18:06:51 by dgaillet ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include "get_next_line.h"
#include <stdint.h>
int index_of_nl(char *str, int limit)
{
int i;
if (!str)
return (-1);
i = 0;
while (i < limit && str[i])
{
if (str[i] == '\n')
return (i);
i++;
}
return (-1);
}
size_t ft_strlen(const char *s)
{
size_t i;
i = 0;
while (s[i])
i++;
return (i);
}
char *ft_strjoin_new(char const *s1, char const *s2, size_t limit)
{
char *str;
size_t i;
size_t j;
str = malloc(sizeof(char) * (ft_strlen(s1) + ft_strlen(s2) + 1));
if (!str)
return (NULL);
i = 0;
j = 0;
while (s1[i])
{
str[i] = s1[i];
i++;
}
while (j <= limit && s2[j])
{
str[i + j] = s2[j];
j++;
}
str[i + j] = '\0';
free((void *) s1);
return (str);
}
char *ft_substr(char const *s, unsigned int start, size_t len)
{
size_t i;
char *sub_str;
size_t s_len;
if (!s)
return (NULL);
s_len = ft_strlen(s);
if (start > s_len)
len = 0;
else if (s_len < (start + len))
len = s_len - start;
sub_str = malloc(sizeof(char) * (len + 1));
if (!sub_str)
return (NULL);
i = 0;
while (i < len)
{
sub_str[i] = s[start + i];
i++;
}
sub_str[i] = '\0';
return (sub_str);
}
void ft_bzero(void *s, size_t n)
{
while (n > 0)
{
*((unsigned char *) s) = '\0';
s++;
n--;
}
}

4352
01_b/input Normal file
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76
01_b/main.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: dgaillet <dgaillet@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/12/05 12:00:08 by dgaillet #+# #+# */
/* Updated: 2025/12/05 12:37:42 by dgaillet ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include "get_next_line.h"
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
int turning_left(int nb, int temp, int *nb_zero)
{
int i = 0;
while (temp > 0)
{
if (nb == 0 && temp > 0 && i > 0)
(*nb_zero)++;
if (nb == 0)
nb = 99;
else
nb--;
temp--;
i++;
}
return (nb);
}
int turning_right(int nb, int temp, int *nb_zero)
{
while (temp > 0)
{
if (nb == 99 && temp > 1)
(*nb_zero)++;
if (nb == 99)
nb = 0;
else
nb++;
temp--;
}
return (nb);
}
int main(void)
{
char *str;
int fd;
int nb = 50;
int temp;
int nb_zero = 0;
fd = open("input", O_RDONLY);
str = get_next_line(fd);
while (str)
{
temp = atoi(&str[1]);
if (str[0] == 'L')
nb = turning_left(nb, temp, &nb_zero);
if (str[0] == 'R')
nb = turning_right(nb, temp, &nb_zero);
if (nb == 0)
nb_zero++;
free(str);
str = get_next_line(fd);
}
close(fd);
printf("%d\n", nb_zero);
}