add day 5

2025/5/part1.c

@@ -0,0 +1,78 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   part1.c                                            :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tomoron <tomoron@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/07/17 23:03:36 by tomoron           #+#    #+#             */
+/*   Updated: 2025/12/05 11:36:52 by tomoron          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "libft/libft.h"
+
+typedef struct s_range_list
+{
+	long int min;
+	long int max;
+	struct s_range_list *next;
+} t_range_list;
+
+static t_range_list *parse_ranges(char **input)
+{
+	t_range_list *res;
+	t_range_list *new;
+
+	res = 0;
+	while(**input != '\n')
+	{
+		new = malloc(sizeof(t_range_list));	
+		if(!new)
+			return(0);
+		new->min = atol(*input);
+		while(ft_isdigit(**input))
+			(*input)++;
+		(*input)++;
+		new->max = atol(*input);
+		while(ft_isdigit(**input))
+			(*input)++;
+		(*input)++;	
+		new->next = res;
+		res = new;
+	}
+	return(res);
+}
+
+static int test_range(long int nb, t_range_list *lst)
+{
+	while(lst)
+	{
+		if(nb >= lst->min && nb <= lst->max)
+			return(1);
+		lst = lst->next;
+	}
+	return(0);
+}
+
+long int resolve_part1(char *input, char **split)
+{
+	(void)split;
+	t_range_list *lst;
+	long int res;
+
+	res = 0;
+	lst = parse_ranges(&input);
+	input++;
+	while(*input)
+	{
+		if(test_range(atol(input), lst))
+			res++;
+		while(ft_isdigit(*input))
+			input++;
+		input++;
+	}
+	return(res);
+}