55 lines
1.3 KiB
Python
55 lines
1.3 KiB
Python
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input = open("input", 'r')
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# input = open("sample", 'r')
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# input = open("test", 'r')
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pairwise = lambda a,b: (a[0] + b[0], a[1]+b[1], a[2]+b[2])
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data = []
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data2 = []
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total = 0
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for line in input:
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line = line.strip()
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x,y,z = line.split(",")
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data.append([(int(x),int(y),int(z)), [False for _ in range(6)]])
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data2.append((int(x),int(y),int(z)))
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dirs = [(1,0,0),(-1,0,0),(0,1,0),(0,-1,0),(0,0,1),(0,0,-1)]
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for cubedata in data:
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for i,dr in enumerate(dirs):
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if cubedata[1][i]:
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continue
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side = pairwise(cubedata[0],dr)
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if side in data2:
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ind = data2.index(side)
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cubedata[1][i] = True
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if i % 2 == 0:
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data[ind][1][i+1] = True
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else:
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data[ind][1][i-1] = True
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for cubedata in data:
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for covered in cubedata[1]:
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if not covered:
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total += 1
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# print(data)
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print(total)
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total2 = total
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all_cubes = {(x,y,z) for x in range(22) for y in range(22) for z in range(22)}
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empty_cubes = all_cubes-scanned_cubes
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q = [(0,0,0)]
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while q:
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c = q.pop()
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if c in empty_cubes:
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empty_cubes.remove(c)
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q.extend(adj_cubes(c))
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for cube in empty_cubes:
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p2 += 6
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for adj in adj_cubes(cube):
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if adj in scanned_cubes:
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p2 -= 2
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scanned_cubes.add(cube)
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print("Part 2:",p2)
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