public/aoc2022
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge remote-tracking branch 'origin/master'

Browse Source
This commit is contained in:
Stefan Harmuth 2022-12-14 07:22:12 +01:00
commit 96998b0f86
1 changed files with 14 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
day13.py
View File

@ -7,21 +7,21 @@ from typing import Any
def packet_compare(left: list, right: list) -> int:
for l_value, r_value in zip(left, right):
if isinstance(l_value, list) and isinstance(r_value, int):
r_value = [r_value]
elif isinstance(l_value, int) and isinstance(r_value, list):
l_value = [l_value]
if l_value == r_value:
continue
if r_value != l_value:
if isinstance(l_value, int):
match l_value, r_value:
case int(), int():
return compare(l_value, r_value)
else:
return packet_compare(l_value, r_value)
case int(), list():
l_value = [l_value]
case list(), int():
r_value = [r_value]
if len(left) != len(right):
return compare(len(left), len(right))
if c := packet_compare(l_value, r_value):
return c
return -1
return compare(len(left), len(right))
class Day(AOCDay):
@ -45,7 +45,7 @@ class Day(AOCDay):
packets = self.parse_input()
index_sum = 0
for x in range(len(packets) // 2):
if packet_compare(packets[x * 2], packets[x * 2 + 1]) == -1:
if packet_compare(packets[x * 2], packets[x * 2 + 1]) < 1:
index_sum += x + 1
return index_sum
@ -53,9 +53,9 @@ class Day(AOCDay):
def part2(self) -> Any:
packets = self.parse_input()
packets.extend([[[2]], [[6]]])
sorted_packets = sorted(packets, key=cmp_to_key(packet_compare))
packets.sort(key=cmp_to_key(packet_compare))
return (sorted_packets.index([[2]]) + 1) * (sorted_packets.index([[6]]) + 1)
return (packets.index([[2]]) + 1) * (packets.index([[6]]) + 1)
if __name__ == '__main__':