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https://github.com/thib8956/advent-of-code.git
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94 lines
2.8 KiB
Python
94 lines
2.8 KiB
Python
import sys
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from pathlib import Path
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sys.path.append(str(Path(__file__).absolute().parent.parent / "intcode"))
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from itertools import cycle, permutations
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from intcode import interpret_intcode, Interpreter
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def main(inp):
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mem = list(map(int, inp.readline().rstrip().split(",")))
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max_ret = 0
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for seq in permutations([0, 1, 2, 3, 4], 5):
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ret = amplifiers(mem, list(seq))
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max_ret = max(ret.stdout[0], max_ret)
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print("Part 1: ", max_ret)
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max_ret = 0
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for seq in permutations((5, 6, 7, 8, 9)):
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ret = part2(mem, list(seq))
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max_ret = max(max_ret, ret)
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print("Part 2: ", max_ret)
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def amplifiers(program, sequence):
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ret = interpret_intcode(program[::], [sequence.pop(0), 0])
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ret = interpret_intcode(program[::], [sequence.pop(0), ret.stdout.pop()])
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ret = interpret_intcode(program[::], [sequence.pop(0), ret.stdout.pop()])
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ret = interpret_intcode(program[::], [sequence.pop(0), ret.stdout.pop()])
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ret = interpret_intcode(program[::], [sequence.pop(0), ret.stdout.pop()])
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return ret
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def part2(program, sequence):
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amplifiers = [Interpreter(program[::], [sequence.pop(0)]) for _ in range(5)]
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it = cycle(enumerate(amplifiers))
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id_, amp = next(it)
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inp = 0
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max_signal = 0
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while True:
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max_signal = max(max_signal, inp)
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amp.stdin.append(inp)
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amp.interpret()
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out = amp.stdout
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if amp.halted:
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break
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next_id, next_amp = next(it)
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inp = out.pop(0)
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amp = next_amp
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id_= next_id
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return max_signal
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def tests():
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program = [3, 15, 3, 16, 1002, 16, 10, 16, 1, 16, 15, 15, 4, 15, 99, 0, 0]
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sequence = [4, 3, 2, 1, 0]
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res = amplifiers(program, sequence)
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assert res.stdout == [43210]
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program = [3,23,3,24,1002,24,10,24,1002,23,-1,23,
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101,5,23,23,1,24,23,23,4,23,99,0,0]
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sequence = [0,1,2,3,4]
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res = amplifiers(program, sequence)
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assert res.stdout == [54321]
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program = [3,31,3,32,1002,32,10,32,1001,31,-2,31,1007,31,0,33,
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1002,33,7,33,1,33,31,31,1,32,31,31,4,31,99,0,0,0]
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sequence = [1,0,4,3,2]
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res = amplifiers(program, sequence)
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assert res.stdout == [65210]
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def tests2():
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program = [3,26,1001,26,-4,26,3,27,1002,27,2,27,1,27,26,
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27,4,27,1001,28,-1,28,1005,28,6,99,0,0,5]
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sequence = [9,8,7,6,5]
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assert part2(program, sequence) == 139629729
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program = [3,52,1001,52,-5,52,3,53,1,52,56,54,1007,54,5,55,1005,55,26,1001,54,
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-5,54,1105,1,12,1,53,54,53,1008,54,0,55,1001,55,1,55,2,53,55,53,4,
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53,1001,56,-1,56,1005,56,6,99,0,0,0,0,10]
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sequence = [9,7,8,5,6]
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assert part2(program, sequence) == 18216
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if __name__ == "__main__":
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import fileinput
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tests()
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tests2()
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main(fileinput.input())
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