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-rw-r--r--8.py21
1 files changed, 10 insertions, 11 deletions
diff --git a/8.py b/8.py
index 77c9072..99b5502 100644
--- a/8.py
+++ b/8.py
@@ -28,7 +28,7 @@ with open_day(8) as f:
patterns, digits = line.rstrip().split(' | ')
patterns = fset(fset(p) for p in patterns.split())
countmap = {
- count: seg
+ count: fset((seg,))
for seg, count in Counter(chain.from_iterable(patterns)).items()
}
lenmap = { len(pat): pat for pat in patterns }
@@ -36,16 +36,15 @@ with open_day(8) as f:
BCDF = lenmap[len(dig[4])]
ACF = lenmap[len(dig[7])]
ABCDEFG = lenmap[len(dig[8])]
- segmap = dict()
- segmap[Seg.B] = countmap[len(seg[Seg.B])]
- segmap[Seg.E] = countmap[len(seg[Seg.E])]
- segmap[Seg.F] = countmap[len(seg[Seg.F])]
- def single(s): return next(iter(s))
- segmap[Seg.A] = single(ACF - CF)
- segmap[Seg.C] = single(CF - fset(segmap[Seg.F]))
- segmap[Seg.D] = single(BCDF - CF - fset(segmap[Seg.B]))
- segmap[Seg.G] = single(ABCDEFG - fset(segmap.values()))
- digmap = { fset(segmap[s] for s in d): i for i, d in enumerate(dig) }
+ B = countmap[len(seg[Seg.B])]
+ E = countmap[len(seg[Seg.E])]
+ F = countmap[len(seg[Seg.F])]
+ A = ACF - CF
+ C = CF - F
+ D = BCDF - CF - B
+ G = ABCDEFG - A - BCDF - E
+ segmap = [ A, B, C, D, E, F, G ]
+ digmap = { fset(next(iter(segmap[s])) for s in d): i for i, d in enumerate(dig) }
digits = [ digmap[fset(d)] for d in digits.split() ]
counts.update(digits)
count += sum(d * 10 ** i for i, d in enumerate(reversed(digits)))