add day 6

2025/6/part1.c

@@ -0,0 +1,92 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   part1.c                                            :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tomoron <tomoron@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/07/17 23:03:36 by tomoron           #+#    #+#             */
+/*   Updated: 2025/12/06 15:54:24 by tomoron          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "libft/libft.h"
+
+long int get_nb(char *line, int index)
+{
+	int i = 0;
+
+	while(i < index && *line)
+	{
+		while(*line == ' ')
+			line++;
+		while(ft_isdigit(*line) || *line == '+' || *line == '*')
+			line++;
+		i++;
+	}
+	if(!*line)
+		return(0);
+	while(*line == ' ')
+		line++;
+	if(*line == '*')
+		return(-1);
+	if(*line == '+')
+		return(-2);
+	return(ft_atoi(line));
+
+}
+
+static char *get_ll(char **split)
+{
+	char *tmp;
+
+	tmp = 0;
+	while(*(split + 1))
+		split++;
+
+	tmp = *split;
+	*split = 0;
+	return(tmp);
+}
+
+long int resolve_part1(char *input, char **split)
+{
+	(void)input;
+	char **tmp;
+	char *last_line;
+	long int ret;
+	long int res;
+	long int cur;
+	long int op;
+	int i = 0;
+
+	res = 0;
+	last_line = get_ll(split);
+	while(1)
+	{
+		tmp = split;
+		op = get_nb(last_line, i);
+		cur = 0;
+		while(*tmp)
+		{
+			ret = get_nb(*tmp, i);
+			if(ret == 0)
+				return(res);
+			if(cur)
+			{
+				if(op == -1)
+					cur *= ret;
+				else
+					cur += ret;
+			}
+			else
+				cur = ret;
+			tmp++;
+		}
+		res += cur;
+		i++;
+	}
+	return(0);
+}