274 lines
6.1 KiB
C
274 lines
6.1 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* part2.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: tomoron <tomoron@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/07/17 23:03:36 by tomoron #+# #+# */
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/* Updated: 2024/12/24 18:44:00 by tomoron ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include "libft/libft.h"
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typedef struct s_op
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{
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char name1[4];
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char name2[4];
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char op;
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} t_op;
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typedef struct s_vars
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{
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char name[4];
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t_op *op;
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unsigned nb:1;
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struct s_vars *next;
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} t_vars;
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static void add_var(t_vars **vars, char *line, t_op *op)
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{
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t_vars *new;
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new = malloc(sizeof(t_vars));
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memcpy(new->name, line, 3);
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new->name[3] = 0;
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new->nb = 0;
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if(!op)
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{
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while(*line != ':' && *line)
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line++;
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while(!ft_isdigit(*line) && *line)
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line++;
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new->nb = ft_atoi(line);
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}
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new->op = op;
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new->next = *vars;
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*vars = new;
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}
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static void get_res(char *res, char *line)
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{
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while(*line != '>' && *line)
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line++;
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line += 2;
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memcpy(res, line, 3);
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res[3] = 0;
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}
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static void handle_line(t_vars **vars, char *line)
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{
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t_op *new_op;
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char val[4];
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new_op = malloc(sizeof(t_op));
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new_op->op = 0;
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memcpy(new_op->name1, line, 3);
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new_op->name1[3] = 0;
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while(*line != ' ' && *line)
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line++;
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while(*line == ' ')
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line++;
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if(*line == 'O')
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new_op->op = 1;
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if(*line == 'A')
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new_op->op = 2;
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if(*line == 'X')
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new_op->op = 3;
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while(*line != ' ' && *line)
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line++;
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while(*line == ' ')
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line++;
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memcpy(new_op->name2, line, 3);
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new_op->name2[3] = 0;
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get_res(val, line);
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add_var(vars, val, new_op);
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}
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static t_vars *get_var(t_vars *vars, char *name)
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{
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while(vars)
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{
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if(!ft_strcmp(vars->name, name))
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return(vars);
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vars = vars->next;
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}
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return(0);
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}
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static int get_value(t_vars *all, t_vars *var)
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{
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if(!var)
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return(0);
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if(!var->op)
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return(var->nb);
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if(var->op->op == 1)
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return(get_value(all, get_var(all, var->op->name1)) | get_value(all, get_var(all, var->op->name2)));
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if(var->op->op == 2)
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return(get_value(all, get_var(all, var->op->name1)) & get_value(all, get_var(all, var->op->name2)));
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if(var->op->op == 3)
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return(get_value(all, get_var(all, var->op->name1)) ^ get_value(all, get_var(all, var->op->name2)));
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return(0);
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}
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int is_input(char *name)
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{
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return((*name == 'x' || *name == 'y') && ft_isdigit(name[1]) && ft_isdigit(name[2]));
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}
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int is_output(char *name)
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{
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return(*name == 'z' && ft_isdigit(name[1]) && ft_isdigit(name[2]));
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}
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int is_first(t_vars *var)
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{
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int nb;
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if(is_input(var->op->name1) && is_input(var->op->name2))
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{
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nb = ft_atoi(var->op->name1 + 1);
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if(nb == 0)
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return(1);
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}
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return(0);
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}
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int is_valid_carry(t_vars *all, t_vars *cur)
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{
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while(all)
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{
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if(all->op && (!ft_strcmp(cur->op->name1, all->name) || !ft_strcmp(cur->op->name2, all->name)))
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if(all->op->op == 2 && is_input(all->op->name1) && ft_atoi(all->op->name1 + 1) != 0)
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{
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printf("%s\n", all->name);
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return(0);
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}
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all = all->next;
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}
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return(1);
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}
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int check_before_xor(t_vars *all, t_vars *cur)
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{
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while(all)
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{
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if(all->op && (!ft_strcmp(cur->name, all->op->name1) || !ft_strcmp(cur->name, all->op->name2)))
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if(all->op->op == 1)
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{
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printf("%s\n", cur->name);
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return(0);
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}
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all = all->next;
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}
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return(1);
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}
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void get_wrong(t_vars *vars)
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{
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t_vars *tmp;
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t_vars *start;
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int max_out;
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tmp = vars;
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start = vars;
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max_out = 0;
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while(tmp)
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{
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if(is_output(tmp->name) && ft_atoi(tmp->name + 1) > max_out)
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max_out = ft_atoi(tmp->name + 1);
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tmp = tmp->next;
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}
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while(vars)
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{
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if(vars->op && !is_first(vars))
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{
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if(vars->op->op == 3 && is_input(vars->op->name1) && is_input(vars->op->name2) && is_output(vars->name))
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printf("%s\n", vars->name);
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if(vars->op->op == 3 && !is_input(vars->op->name1) && !is_input(vars->op->name2) && !is_output(vars->name))
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printf("%s\n", vars->name);
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if(vars->op->op == 2 && is_output(vars->name))
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printf("%s\n", vars->name);
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if(vars->op->op == 1 && is_output(vars->name) && ft_atoi(vars->name + 1) != max_out)
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printf("%s\n", vars->name);
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if(vars->op->op == 3 && !is_input(vars->op->name1) && !is_input(vars->op->name2) && is_output(vars->name))
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is_valid_carry(start, vars);
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if(vars->op->op == 3 && is_input(vars->op->name1) && is_input(vars->op->name2) && !is_output(vars->name))
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check_before_xor(start, vars);
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}
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vars = vars->next;
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}
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}
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void show_wrong(t_vars *vars)
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{
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uint64_t vals[2];
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uint64_t expected;
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uint64_t value;
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int max_bit;
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int i;
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value = 0;
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vals[0] = 0;
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vals[1] = 0;
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max_bit = 0;
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i = 0;
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while(vars)
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{
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if(vars->name[0] == 'z' && ft_isdigit(vars->name[1]) && ft_isdigit(vars->name[2]))
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{
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if(ft_atoi(vars->name + 1) > max_bit)
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max_bit = ft_atoi(vars->name + 1);
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if(get_value(vars, vars))
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value += (uint64_t)1 << ft_atoi(vars->name + 1);
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}
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if(vars->name[0] == 'x' && ft_isdigit(vars->name[1]) && ft_isdigit(vars->name[2]))
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{
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if(get_value(vars, vars))
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vals[0] += (uint64_t)1 << ft_atoi(vars->name + 1);
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}
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if(vars->name[0] == 'y' && ft_isdigit(vars->name[1]) && ft_isdigit(vars->name[2]))
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{
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if(get_value(vars, vars))
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vals[1] += (uint64_t)1 << ft_atoi(vars->name + 1);
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}
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vars = vars->next;
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}
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expected = vals[0] + vals[1];
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while(i <= max_bit)
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{
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if((expected & (1 << max_bit)) != (value & (1 << i)))
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printf("error on %d\n", i);
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i++;
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}
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}
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long int resolve_part2(char *input, char **split)
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{
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(void)input;
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t_vars *vars;
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vars = 0;
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while((*split)[3] == ':')
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{
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add_var(&vars, *split, 0);
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split++;
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}
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while(*split)
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{
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handle_line(&vars, *split);
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split++;
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}
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// show_wrong(vars);
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get_wrong(vars);
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printf("order it yourself idgaf\n");
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return(0);
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}
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