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Day 16 part 2 (WIP)

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Dece 2019-12-16 07:54:07 +01:00
parent 2d21081532
commit 5bde897f48
1 changed files with 13 additions and 1 deletions
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14
2019/day16.py
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@ -4,7 +4,19 @@ import math
def main(): def main():
with open("day16.txt", "rt") as input_file: with open("day16.txt", "rt") as input_file:
inputs = [int(i) for i in input_file.read().rstrip()] inputs = [int(i) for i in input_file.read().rstrip()]
inputs_orig = inputs.copy()
# result = phaze2phaze(inputs)
# print(f"First 8 digits: {''.join(str(int(i)) for i in result[:8])}")
# Part 2
offset = int(''.join(str(i) for i in inputs[:7]))
inputs = [i for _ in range(10000) for i in inputs_orig]
result = phaze2phaze(inputs)
print(f"8 digits at offset: {''.join(str(int(i)) for i in result[offset:offset + 8])}")
def phaze2phaze(inputs):
p = [0, 1, 0, -1] p = [0, 1, 0, -1]
for phase_id in range(100): for phase_id in range(100):
phase_id += 1 phase_id += 1
@ -19,7 +31,7 @@ def main():
out = sum(a * b for a, b in zip(inputs, ex_p)) out = sum(a * b for a, b in zip(inputs, ex_p))
outputs[index] = abs(math.fmod(out, 10)) outputs[index] = abs(math.fmod(out, 10))
inputs = outputs inputs = outputs
print(f"First 8 digits: {''.join(str(int(i)) for i in inputs[:8])}") return inputs
if __name__ == "__main__": if __name__ == "__main__":