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95 lines
2.2 KiB
Python
95 lines
2.2 KiB
Python
6 years ago
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#!/usr/bin/env python3
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from functools import reduce
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from pprint import pprint
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with open('input.txt', 'r') as f:
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instructions = [x.strip() for x in f.readlines()]
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instructions = [(x.split(' ')[1], x.split(' ')[7]) for x in instructions]
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steps = {y for x in instructions for y in x} # flatten
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finished = list()
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requirements = { step: [] for step in steps }
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for el in instructions:
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requirements[el[1]].append(el[0])
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def get_possible_steps():
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possible = [ step for step in requirements if len(requirements[step]) == 0]
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possible.sort()
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return possible
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def calc_duration(step):
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return ord(step) - 64 + 60
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def begin_step(step):
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steps.remove(step)
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requirements.pop(step)
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def finish_step(step):
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for el in requirements:
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if step in requirements[el]:
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requirements[el].remove(step)
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finished.append(step)
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def print_row(sec, states, fin):
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row = str(sec).ljust(4) + ' '
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row += ' '
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for state in states:
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row += '' + state + ' '
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row += ''.join(fin)
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print(row)
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class Worker:
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def __init__(self):
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self.step = None
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self.duration = None
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def init_step(self, step):
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self.step = step
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self.duration = calc_duration(step) - 1
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def get_state(self):
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if self.step is None:
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return '.' # idle
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self.duration -= 1
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if self.duration > 0:
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return '#' # working
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_step = self.step
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self.step = None
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return _step # finished work
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workers = [Worker(), Worker(), Worker(), Worker(), Worker()]
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# hack
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buffer_finished = []
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i = 0
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while len(finished) != 26:
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for fin in buffer_finished:
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finish_step(fin)
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buffer_finished = []
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states = []
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for worker in workers:
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state = worker.get_state()
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if state not in ['#', '.']:
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buffer_finished.append(state)
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if state != '#':
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try:
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step = get_possible_steps().pop(0)
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begin_step(step)
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worker.init_step(step)
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state = step.lower()
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except IndexError:
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pass
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states.append(state)
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print_row(i, states, finished)
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i += 1
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print(''.join(finished))
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print('Duration', i - 1)
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