Anders Englöf Ytterström
34fb92403e
For the First time this season, pt 2 was not an epic HOLY SHIIIT!!! facemelter. I stared at my code in disbelief during pt 1 for several minutes before I increased the test point from from 40 to 1000 and got the right answer.
58 lines
1.3 KiB
Python
58 lines
1.3 KiB
Python
from math import sqrt
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from itertools import combinations
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from output import ints
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def solve(data):
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Di = sorted(
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map(_euclidan_distance, combinations(data.splitlines(), r=2)),
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key=lambda r: r[1],
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)
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C = []
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S = len(data.splitlines())
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IP = 1000
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for i, pq in enumerate(Di, start=1):
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pq, _ = pq
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c = set(pq)
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p, q = pq
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rmq = []
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nothing = False
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for j in C:
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if p in j and q in j:
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nothing = True
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continue
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if p in j or q in j:
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c = c | j
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rmq.append(j)
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C = [e for e in C if e not in rmq]
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if c == pq and nothing:
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continue
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if len(c) == S:
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p2 = ints(p)[0] * ints(q)[0]
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break
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C = [c] + C
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if i == IP:
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a, b, c = sorted(list(map(len, C)), reverse=True)[:3]
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p1 = a * b * c
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return p1, p2
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def _euclidan_distance(pq):
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p, q = pq
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p1, p2, p3 = ints(p)
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q1, q2, q3 = ints(q)
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return (p, q), sqrt((p1 - q1) ** 2 + (p2 - q2) ** 2 + (p3 - q3) ** 2)
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if __name__ == "__main__":
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with open("./input/08.txt", "r") as f:
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inp = f.read().strip()
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p1, p2 = solve(inp)
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print(p1)
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print(p2)
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assert p1 == 84968
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assert p2 == 8663467782
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