day19: takes 20s to run (per part), but it gets the job done. Added to the list of "needs improvement later"
This commit is contained in:
Stefan Harmuth
parent
9bcdd10ed7
commit
f909b2d97b
90
day19.py
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90
day19.py
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@ -0,0 +1,90 @@
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from collections import defaultdict
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from itertools import combinations
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from tools.aoc import AOCDay
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from tools.coordinate import Coordinate, DistanceAlgorithm
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from tools.grid import Grid, GridTransformation
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from typing import Any, List, Union
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ROTATION_PATH = [
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GridTransformation.ROTATE_X,
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GridTransformation.ROTATE_X,
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GridTransformation.ROTATE_Z,
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GridTransformation.ROTATE_X,
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GridTransformation.ROTATE_X,
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GridTransformation.ROTATE_Z
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]
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def overlap(beacon1: Grid, beacon2: Grid) -> Union[Coordinate, None]:
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diffs = defaultdict(int)
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for c1 in beacon1.getActiveCells():
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for c2 in beacon2.getActiveCells():
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# Interestingly adding an if statement here to break out early when already 12 matches are found
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# slows the loop down so much, that the end result is slower compared to just counting everything
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# and checking the results afterwards.
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diffs[c1 - c2] += 1
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for d in diffs:
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if diffs[d] >= 12:
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return d
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def converge(scanner_grids: List[Grid]) -> (Grid, List[Coordinate]):
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main_grid = scanner_grids.pop()
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diff_list = [Coordinate(0, 0, 0)]
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while scanner_grids:
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found = False
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for i, scanner in enumerate(scanner_grids):
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for rotation in ROTATION_PATH:
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for y_rotation in range(4):
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if diff := overlap(main_grid, scanner):
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#print("Grid overlap:", main_grid.name, scanner.name, "=>", len(scanner_grids) - 1, "to go.")
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scanner_grids.pop(i)
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diff_list.append(diff)
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for c in scanner.getActiveCells():
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main_grid.set(c + diff)
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found = True
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break
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scanner.transform(GridTransformation.ROTATE_Y)
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scanner.transform(rotation)
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if found:
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break
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if found:
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break
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assert found, "No overlapping Grids found"
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return main_grid, diff_list
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class Day(AOCDay):
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test_solutions_p1 = [79]
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test_solutions_p2 = [3621]
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def part1(self) -> Any:
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scanner_grids = []
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for scanner_input in self.getMultiLineInputAsArray():
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scanner_grid = Grid()
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scanner_grid.name = scanner_input[0]
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for l in scanner_input[1:]:
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scanner_grid.set(Coordinate(*map(int, l.split(","))))
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scanner_grids.append(scanner_grid)
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teh_grid, _ = converge(scanner_grids)
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return len(teh_grid.getActiveCells())
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def part2(self) -> Any:
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scanner_grids = []
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for scanner_input in self.getMultiLineInputAsArray():
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scanner_grid = Grid()
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scanner_grid.name = scanner_input[0]
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for l in scanner_input[1:]:
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scanner_grid.set(Coordinate(*map(int, l.split(","))))
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scanner_grids.append(scanner_grid)
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_, diff_list = converge(scanner_grids)
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max_diff = 0
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for s1, s2 in combinations(diff_list, 2):
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max_diff = max(max_diff, s1.getDistanceTo(s2, includeDiagonals=False, algorithm=DistanceAlgorithm.MANHATTAN))
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return max_diff
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1111
inputs/input19
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1111
inputs/input19
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File diff suppressed because it is too large
Load Diff
136
inputs/test_input19_1_0
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136
inputs/test_input19_1_0
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@ -0,0 +1,136 @@
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--- scanner 0 ---
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404,-588,-901
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528,-643,409
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-838,591,734
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390,-675,-793
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-537,-823,-458
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-485,-357,347
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-345,-311,381
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-661,-816,-575
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-876,649,763
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-618,-824,-621
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553,345,-567
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474,580,667
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-447,-329,318
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-584,868,-557
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544,-627,-890
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564,392,-477
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455,729,728
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-892,524,684
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-689,845,-530
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423,-701,434
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7,-33,-71
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630,319,-379
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443,580,662
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-789,900,-551
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459,-707,401
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--- scanner 1 ---
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686,422,578
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605,423,415
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515,917,-361
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-336,658,858
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95,138,22
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-476,619,847
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-340,-569,-846
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567,-361,727
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-460,603,-452
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669,-402,600
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729,430,532
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-500,-761,534
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-322,571,750
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-466,-666,-811
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-429,-592,574
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-355,545,-477
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703,-491,-529
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-328,-685,520
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413,935,-424
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-391,539,-444
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586,-435,557
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-364,-763,-893
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807,-499,-711
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755,-354,-619
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553,889,-390
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--- scanner 2 ---
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649,640,665
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682,-795,504
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-784,533,-524
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-644,584,-595
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-588,-843,648
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-30,6,44
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-674,560,763
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500,723,-460
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609,671,-379
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-555,-800,653
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-675,-892,-343
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697,-426,-610
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578,704,681
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493,664,-388
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-671,-858,530
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-667,343,800
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571,-461,-707
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-138,-166,112
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-889,563,-600
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646,-828,498
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640,759,510
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-630,509,768
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-681,-892,-333
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673,-379,-804
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-742,-814,-386
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577,-820,562
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--- scanner 3 ---
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-589,542,597
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605,-692,669
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-500,565,-823
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-660,373,557
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-458,-679,-417
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-488,449,543
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-626,468,-788
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338,-750,-386
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528,-832,-391
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562,-778,733
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-938,-730,414
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543,643,-506
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-524,371,-870
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407,773,750
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-104,29,83
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378,-903,-323
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-778,-728,485
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426,699,580
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-438,-605,-362
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-469,-447,-387
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509,732,623
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647,635,-688
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-868,-804,481
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614,-800,639
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595,780,-596
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--- scanner 4 ---
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727,592,562
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-293,-554,779
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441,611,-461
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-714,465,-776
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-743,427,-804
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-660,-479,-426
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832,-632,460
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927,-485,-438
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408,393,-506
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466,436,-512
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110,16,151
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-258,-428,682
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-393,719,612
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-211,-452,876
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808,-476,-593
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-575,615,604
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-485,667,467
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-680,325,-822
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-627,-443,-432
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872,-547,-609
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833,512,582
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807,604,487
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839,-516,451
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891,-625,532
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-652,-548,-490
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30,-46,-14
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136
inputs/test_input19_2_0
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136
inputs/test_input19_2_0
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@ -0,0 +1,136 @@
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--- scanner 0 ---
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404,-588,-901
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528,-643,409
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-838,591,734
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390,-675,-793
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-537,-823,-458
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-485,-357,347
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-345,-311,381
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-661,-816,-575
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-876,649,763
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-618,-824,-621
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553,345,-567
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474,580,667
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-447,-329,318
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-584,868,-557
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544,-627,-890
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564,392,-477
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455,729,728
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-892,524,684
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-689,845,-530
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423,-701,434
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7,-33,-71
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630,319,-379
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443,580,662
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-789,900,-551
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459,-707,401
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--- scanner 1 ---
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686,422,578
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605,423,415
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515,917,-361
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-336,658,858
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95,138,22
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-476,619,847
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-340,-569,-846
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567,-361,727
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-460,603,-452
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669,-402,600
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729,430,532
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-500,-761,534
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-322,571,750
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-466,-666,-811
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-429,-592,574
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-355,545,-477
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703,-491,-529
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-328,-685,520
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413,935,-424
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-391,539,-444
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586,-435,557
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-364,-763,-893
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807,-499,-711
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755,-354,-619
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553,889,-390
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--- scanner 2 ---
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649,640,665
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682,-795,504
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-784,533,-524
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-644,584,-595
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-588,-843,648
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-30,6,44
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-674,560,763
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500,723,-460
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609,671,-379
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-555,-800,653
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-675,-892,-343
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697,-426,-610
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578,704,681
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493,664,-388
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-671,-858,530
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-667,343,800
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571,-461,-707
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-138,-166,112
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-889,563,-600
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646,-828,498
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640,759,510
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-630,509,768
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-681,-892,-333
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673,-379,-804
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-742,-814,-386
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577,-820,562
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--- scanner 3 ---
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-589,542,597
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605,-692,669
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-500,565,-823
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-660,373,557
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-458,-679,-417
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-488,449,543
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-626,468,-788
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338,-750,-386
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528,-832,-391
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562,-778,733
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-938,-730,414
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543,643,-506
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-524,371,-870
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407,773,750
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-104,29,83
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378,-903,-323
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-778,-728,485
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426,699,580
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-438,-605,-362
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-469,-447,-387
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509,732,623
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647,635,-688
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-868,-804,481
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614,-800,639
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595,780,-596
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--- scanner 4 ---
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727,592,562
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-293,-554,779
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441,611,-461
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-714,465,-776
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-743,427,-804
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-660,-479,-426
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832,-632,460
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927,-485,-438
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408,393,-506
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466,436,-512
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110,16,151
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-258,-428,682
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-393,719,612
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-211,-452,876
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808,-476,-593
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-575,615,604
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-485,667,467
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-680,325,-822
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-627,-443,-432
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872,-547,-609
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833,512,582
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807,604,487
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839,-516,451
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891,-625,532
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-652,-548,-490
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30,-46,-14
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