advent-of-code-2019/day07.py

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#!/usr/bin/env python3
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from intcode import Interpreter, SingletonIO
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from itertools import permutations
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from lib import memoize
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stack_size = 5
fst_amp_input = 0
def preproc(puzzle_input):
program = list(map(int, puzzle_input.split(',')))
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def make_amp(phase):
amp = Interpreter(program, SingletonIO)
amp.eval(phase)
return amp
return make_amp
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def partI(make_amp):
@memoize
def run_amp(phase, amp_in):
amp = make_amp(phase)
return amp.run(amp_in)
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phase_range = range(stack_size)
best = 0
for perm in permutations(phase_range):
amp_in = fst_amp_input
for phase in perm:
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amp_in = run_amp(phase, amp_in)
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best = max(amp_in, best)
return best
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def partII(make_amp):
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phase_range = range(5, 10)
best = 0
for perm in permutations(phase_range):
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amps = list(map(make_amp, perm))
for prev, amp in zip(amps, amps[1:]):
amp.pipe_from(prev)
amp.write(fst_amp_input)
for amp_in in amp:
amp.write(amp_in)
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best = max(amp_in, best)
return best
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from main import Tests
tests = Tests()
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tests.add(
"3,15,3,16,1002,16,10,16,1,16,15,15,4,15,99,0,0", partI=43210)
tests.add(
"3,23,3,24,1002,24,10,24,1002,23,-1,23," +
"101,5,23,23,1,24,23,23,4,23,99,0,0", partI=54321)
tests.add(
"3,31,3,32,1002,32,10,32,1001,31,-2,31,1007,31,0,33," +
"1002,33,7,33,1,33,31,31,1,32,31,31,4,31,99,0,0,0", partI=65210)
tests.add(
"3,26,1001,26,-4,26,3,27,1002,27,2,27,1,27,26," +
"27,4,27,1001,28,-1,28,1005,28,6,99,0,0,5", partII=139629729)
tests.add(
"3,52,1001,52,-5,52,3,53,1,52,56,54,1007,54,5,55,1005,55,26,1001,54," +
"-5,54,1105,1,12,1,53,54,53,1008,54,0,55,1001,55,1,55,2,53,55,53,4," +
"53,1001,56,-1,56,1005,56,6,99,0,0,0,0,10", partII=18216)