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day22_2.py
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day22_2.py
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from math import floor
from statistics import mean
# inputs = Path(sys.argv[1]).read_text().strip()
inputs = """
on x=-5..47,y=-31..22,z=-19..33
on x=-44..5,y=-27..21,z=-14..35
on x=-49..-1,y=-11..42,z=-10..38
on x=-20..34,y=-40..6,z=-44..1
off x=26..39,y=40..50,z=-2..11
on x=-41..5,y=-41..6,z=-36..8
off x=-43..-33,y=-45..-28,z=7..25
on x=-33..15,y=-32..19,z=-34..11
off x=35..47,y=-46..-34,z=-11..5
on x=-14..36,y=-6..44,z=-16..29
on x=-57795..-6158,y=29564..72030,z=20435..90618
on x=36731..105352,y=-21140..28532,z=16094..90401
on x=30999..107136,y=-53464..15513,z=8553..71215
on x=13528..83982,y=-99403..-27377,z=-24141..23996
on x=-72682..-12347,y=18159..111354,z=7391..80950
on x=-1060..80757,y=-65301..-20884,z=-103788..-16709
on x=-83015..-9461,y=-72160..-8347,z=-81239..-26856
on x=-52752..22273,y=-49450..9096,z=54442..119054
on x=-29982..40483,y=-108474..-28371,z=-24328..38471
on x=-4958..62750,y=40422..118853,z=-7672..65583
on x=55694..108686,y=-43367..46958,z=-26781..48729
on x=-98497..-18186,y=-63569..3412,z=1232..88485
on x=-726..56291,y=-62629..13224,z=18033..85226
on x=-110886..-34664,y=-81338..-8658,z=8914..63723
on x=-55829..24974,y=-16897..54165,z=-121762..-28058
on x=-65152..-11147,y=22489..91432,z=-58782..1780
on x=-120100..-32970,y=-46592..27473,z=-11695..61039
on x=-18631..37533,y=-124565..-50804,z=-35667..28308
on x=-57817..18248,y=49321..117703,z=5745..55881
on x=14781..98692,y=-1341..70827,z=15753..70151
on x=-34419..55919,y=-19626..40991,z=39015..114138
on x=-60785..11593,y=-56135..2999,z=-95368..-26915
on x=-32178..58085,y=17647..101866,z=-91405..-8878
on x=-53655..12091,y=50097..105568,z=-75335..-4862
on x=-111166..-40997,y=-71714..2688,z=5609..50954
on x=-16602..70118,y=-98693..-44401,z=5197..76897
on x=16383..101554,y=4615..83635,z=-44907..18747
off x=-95822..-15171,y=-19987..48940,z=10804..104439
on x=-89813..-14614,y=16069..88491,z=-3297..45228
on x=41075..99376,y=-20427..49978,z=-52012..13762
on x=-21330..50085,y=-17944..62733,z=-112280..-30197
on x=-16478..35915,y=36008..118594,z=-7885..47086
off x=-98156..-27851,y=-49952..43171,z=-99005..-8456
off x=2032..69770,y=-71013..4824,z=7471..94418
on x=43670..120875,y=-42068..12382,z=-24787..38892
off x=37514..111226,y=-45862..25743,z=-16714..54663
off x=25699..97951,y=-30668..59918,z=-15349..69697
off x=-44271..17935,y=-9516..60759,z=49131..112598
on x=-61695..-5813,y=40978..94975,z=8655..80240
off x=-101086..-9439,y=-7088..67543,z=33935..83858
off x=18020..114017,y=-48931..32606,z=21474..89843
off x=-77139..10506,y=-89994..-18797,z=-80..59318
off x=8476..79288,y=-75520..11602,z=-96624..-24783
on x=-47488..-1262,y=24338..100707,z=16292..72967
off x=-84341..13987,y=2429..92914,z=-90671..-1318
off x=-37810..49457,y=-71013..-7894,z=-105357..-13188
off x=-27365..46395,y=31009..98017,z=15428..76570
off x=-70369..-16548,y=22648..78696,z=-1892..86821
on x=-53470..21291,y=-120233..-33476,z=-44150..38147
off x=-93533..-4276,y=-16170..68771,z=-104985..-24507
"""
# inputs = '''
# on x=10..12,y=10..12,z=10..12
# on x=11..13,y=11..13,z=11..13
# off x=9..11,y=9..11,z=9..11
# on x=10..10,y=10..10,z=10..10
# '''
inputs = [line.split(',') for line in inputs.split('\n') if line]
def get_data(a):
yield from (tuple(int(s) for s in item.split('=')[1].split('..')) for item in a)
yield a[0].split(' ')[0]
result_cubes = set() # x,y and value is region
cuboids = [tuple(get_data(a)) for a in inputs]
def intersection(c1, c2):
def inc(i, a, b):
return b[i][0] <= a[i][0] <= a[i][1] <= b[i][1]
def outc(i, a, b):
def outone(subcoor):
return a[i][subcoor] < b[i][0] and a[i][subcoor] < b[i][1]
return outone(0) and outone(1)
if all(inc(coord, c1, c2) for coord in range(3)):
return 'c1 in c2'
if all(inc(coord, c2, c1) for coord in range(3)):
return 'c2 in c1'
if any(outc(coord, c2, c1) for coord in range(3)):
return 'no'
if any(outc(coord, c1, c2) for coord in range(3)):
return 'no'
return 'xz' # xz
def is_single(c):
return all(c[i][0] - c[i][1] == 0 for i in range(3))
def split(c):
if is_single(c):
return {c}
result = set()
dx = floor(mean(c[0]))
dy = floor(mean(c[1]))
dz = floor(mean(c[2]))
x_range = [(c[0][0], dx), (dx + 1, c[0][1])] if c[0][0] != c[0][1] else [c[0]]
y_range = [(c[1][0], dy), (dy + 1, c[1][1])] if c[1][0] != c[1][1] else [c[1]]
z_range = [(c[2][0], dz), (dz + 1, c[2][1])] if c[2][0] != c[2][1] else [c[2]]
for x in x_range:
for y in y_range:
for z in z_range:
result.add((x, y, z, c[3]) if len(c) == 4 else (x, y, z))
return result
def check_cuboid(cuboid, r_cubes):
def create_result(c):
return set(), {c[:3]} if c[3] == 'on' else set(), {c[:3]}
for oldie in r_cubes:
inter = intersection(cuboid, oldie)
# if inter == 'c2 in c1': # oldie in cuboid
# if newbie[3] == 'off':
# remove_result.add(oldie)
# continue
if inter == 'no':
continue
if is_single(oldie) and is_single(cuboid):
return create_result(cuboid)
return split(cuboid), split(oldie), {oldie}
return create_result(cuboid)
for i, current_cuboid in enumerate(cuboids):
print(current_cuboid)
if not result_cubes:
result_cubes.add(current_cuboid[:3])
continue
splitted_cuboids = {current_cuboid}
while True:
newbie = splitted_cuboids.pop()
new_splitted, add_result, remove_result = check_cuboid(newbie, result_cubes)
splitted_cuboids |= new_splitted
result_cubes = result_cubes - remove_result
result_cubes |= add_result
if not splitted_cuboids:
break
v = 0
for c in result_cubes:
proi = 1
for i in range(3):
proi *= abs(c[i][0] - c[i][1]) + 1
v += proi
print(v)
# for r in sorted(result_cubes):
# print(r)
# 39