86 lines
2.6 KiB
Python
86 lines
2.6 KiB
Python
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with open("input") as f:
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content = [x.strip() for x in f]
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occupied = "#"
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free = "."
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dimension = 21
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initial = int(dimension/3)
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x = y = z = w = initial
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def count_4d_neighbours(grid, w, z, y, x):
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count = 0
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for w_ in range(w-1, w +2):
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for z_ in range(z-1, z+2):
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for y_ in range(y-1, y+2):
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for x_ in range(x-1, x+2):
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if grid[w_][z_][y_][x_] == occupied:
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count +=1
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if grid[w][z][y][x] == occupied:
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count -= 1
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return count
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def count_occupied(grid):
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count = 0
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for w in range(len(grid)):
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for z in range(len(grid[w])):
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for y in range(len(grid[w][z])):
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count += grid[w][z][y].count(occupied)
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return count
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def print_grid(grid):
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for w in range(len(grid)):
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for z in range(len(grid[w])):
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count = 0
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for y in range(len(grid[w][z])):
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count += grid[w][z][y].count(occupied)
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if count:
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print(f"w={w} z={z}")
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for y in range(len(grid[w][z])):
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print("".join(grid[w][z][y]))
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grid = [None] * dimension
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for w in range(len(grid)):
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grid[w] = [None] * dimension
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for z in range(len(grid[w])):
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grid[w][z] = [None] * dimension
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for y in range(len(grid[w][z])):
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grid[w][z][y] = [free] * dimension
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for x in range(initial, initial + len(content)):
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for y in range(initial, initial + len(content)):
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grid[initial][initial][x][y] = content[x-initial][y-initial]
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print_grid(grid)
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#print(count_neighbours(grid, initial, initial))
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for pass_ in range(6):
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newgrid = [free] * dimension
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for w in range(len(newgrid)):
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newgrid[w] = [free] * dimension
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for z in range(len(newgrid[w])):
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newgrid[w][z] = [free] * dimension
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for y in range(len(newgrid[w][z])):
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newgrid[w][z][y] = [free] * dimension
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for w in range(1, len(grid) - 1):
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for z in range(1, len(grid[w]) - 1):
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for y in range(1, len(grid[w][z]) - 1):
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for x in range(1, len(grid[w][z][y]) - 1):
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neighbours = count_4d_neighbours(grid, w, z, y, x)
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if grid[w][z][y][x] == occupied and neighbours not in [2, 3]:
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newgrid[w][z][y][x] = free
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elif grid[w][z][y][x] == free and neighbours == 3:
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newgrid[w][z][y][x] = occupied
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else:
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newgrid[w][z][y][x] = grid[w][z][y][x]
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print(f"pass: {pass_}\n-----------")
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print_grid(newgrid)
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grid = newgrid.copy()
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print(count_occupied(grid))
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