AdventOfCode/2017/18/solution.py

#!/bin/python3
import sys,re
from pprint import pprint
sys.path.insert(0, '../../')
from fred import list2int

input_f = 'input'

part = 1
#########################################
#                                       #
#              Part 1                   #
#                                       #
#########################################

def parse_input(input_str):
    pattern = r"^([a-zA-Z]{3})\s{1}(\w)?\s?(-?\w+)$"

    match = re.match(pattern, input_str)
    if match:
        if match.group(2):
            return match.group(1),match.group(2),match.group(3)
        else:
            return match.group(1),match.group(3)
        
    return None 

def sets_return(x):
    if x in Sets:  
        value = Sets[x]
        if isinstance(value, str) and not x.lstrip('-').isdigit():
            return sets_return(value)  
        return value 
    elif x.isdigit() or x.lstrip('-').isdigit():
        return int(x)
    else:
        return None  

instructions = []

Sets = {}

last_sound = 0

if part == 1:
    with open(input_f) as file:
        for line in file:
            instructions.append(list(parse_input(line.rstrip())))

    x = 0

    while True:
        i = instructions[x]

        if isinstance(i[1], str):
            if i[1] not in Sets:
                Sets[i[1]] = 0

        if i[0] == 'set':
            Sets[i[1]] = int(sets_return(i[2]))
            x += 1

        elif i[0] == 'add':
            Sets[i[1]] += sets_return(i[2])
            x += 1

        elif i[0] == 'mul':
            Sets[i[1]] *=  sets_return(i[2])
            x += 1

        elif i[0] == 'mod':
            Sets[i[1]] %=  sets_return(i[2])
            x += 1

        elif i[0] == 'snd':
            last_sound = sets_return(i[1])
            x += 1
        
        elif i[0] == 'rcv':
            if sets_return(i[1]) != 0:
                Sets[i[1]] = sets_return(i[1])
                print(last_sound)
                exit()
            x += 1

        
        elif i[0] == 'jgz': 
            if sets_return(i[1]) > 0:
                x += sets_return(i[2])
            else:
                x += 1
            



#########################################
#                                       #
#              Part 2                   #
#                                       #
#########################################
if part == 2:
    exit()