From: Lukáš Jiřiště <gymnazium.jiriste@gmail.com>
Date: Sun, 3 Dec 2023 19:48:43 +0000 (+0100)
Subject: Add solution for first part of day 1
X-Git-Url: https://git.ljiriste.work/?a=commitdiff_plain;h=0f8558ed5f27aefdf40e9f5797cc5e8b185acb64;p=AoC_2023.git

Add solution for first part of day 1
---

diff --git a/1/1.c b/1/1.c
new file mode 100644
index 0000000..73d4c0a
--- /dev/null
+++ b/1/1.c
@@ -0,0 +1,50 @@
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include "libft.h"
+
+int	line_value(char *line)
+{
+	char	two_digit[2];
+	size_t	i;
+
+	i = 0;
+	while (!ft_isdigit(line[i]))
+		++i;
+	two_digit[0] = line[i];
+	while(line[i])
+		++i;
+	while (!ft_isdigit(line[i]))
+		--i;
+	two_digit[1] = line[i];
+	return (ft_atoi(two_digit));
+}
+
+int	main(int argc, char **argv)
+{
+	char	*line;
+	int		fd;
+	int		result;
+
+	if (argc != 2)
+	{
+		return (1);
+	}
+	fd = open(argv[1], O_RDONLY);
+	if (fd < 0)
+	{
+		return (2);
+	}
+	result = 0;
+	line = get_next_line(fd);
+	while (line)
+	{
+		result += line_value(line);
+		free(line);
+		line = get_next_line(fd);
+	}
+	ft_printf("The calibration sum is %i.\n", result);
+	close(fd);
+	return (0);
+}