AdventOfCode/2017/20/solution.py

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

input_f = 'input'

part = 2
#########################################
#                                       #
#              Part 1                   #
#                                       #
#########################################

lines = []

if part == 1:
    with open(input_f) as file:
        for line in file:
            lines.append(get_re(r"^p=<(.*)>.*v=<(.*)>.*a=<(.*)>$",line.rstrip()))  

    min_acc = float('inf')
    acc_idx = 0

    for idx,i in enumerate(lines):
        tmp = math.sqrt(sum(component ** 2 for component in list2int(i.group(3).split(','))))
        if tmp < min_acc:
            min_acc = tmp
            acc_idx = idx
    print(acc_idx)

#########################################
#                                       #
#              Part 2                   #
#                                       #
#########################################
if part == 2:
    continue           

    #pprint(lines)

    # magnitude = []

    # def calculate_magnitude(vector):
    #     return math.sqrt(sum(component ** 2 for component in vector))

    # def find_slowest_as_time_infinite(vectors):
    #     min_acceleration = float('inf')
    #     slowest_item = None

    #     for i, (_, a) in enumerate(vectors):
    #         acceleration_magnitude = calculate_magnitude(a)
    #         if acceleration_magnitude < min_acceleration:
    #             min_acceleration = acceleration_magnitude
    #             slowest_item = i
        
    #     return slowest_item


    # vectors = []

    # for i in lines:
    #     v = list2int(i.group(2).split(','))
    #     a = list2int(i.group(3).split(','))
    #     vectors.append((v,a))
    # print(find_slowest_as_time_infinite(vectors))