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day16: don't play with strings when calculating values ...

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This commit is contained in:
Stefan Harmuth 2021-12-17 07:48:06 +01:00
parent 09d316941e
commit c527de2e10
1 changed files with 4 additions and 4 deletions
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8
day16.py
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@ -80,12 +80,12 @@ def get_value(packet: str) -> int:
return max(get_value(p) for p in get_subpackages(this_packet)) return max(get_value(p) for p in get_subpackages(this_packet))
elif pkg_type == 4: elif pkg_type == 4:
index = 6 index = 6
pkg_bits = "" value = 0
while this_packet[index] == "1": while this_packet[index] == "1":
pkg_bits += this_packet[index + 1:index + 5] value = value * 16 + int(this_packet[index + 1:index + 5], 2)
index += 5 index += 5
pkg_bits += this_packet[index + 1:index + 5] value = value * 16 + int(this_packet[index + 1:index + 5], 2)
return int(pkg_bits, 2) return value
elif pkg_type == 5: elif pkg_type == 5:
sub_pkg = get_subpackages(this_packet) sub_pkg = get_subpackages(this_packet)
return get_value(sub_pkg[0]) > get_value(sub_pkg[1]) return get_value(sub_pkg[0]) > get_value(sub_pkg[1])