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Day 17 (cleanup)

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Sebastian Seedorf
2020-12-17 11:59:26 +01:00
parent ad8a6b1a67
commit f8fca68bd8
2 changed files with 2 additions and 7 deletions
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2
day17/part1.py
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@@ -20,6 +20,6 @@ for iter in range(6):
x = np.flatnonzero(grid.sum(axis=(1, 2)))
y = np.flatnonzero(grid.sum(axis=(0, 2)))
z = np.flatnonzero(grid.sum(axis=(0, 1)))
grid = grid[min(x):max(x)+1, :, :][:, min(y):max(y)+1, :][:, :, min(z):max(z)+1]
grid = grid[min(x):max(x)+1, min(y):max(y)+1, min(z):max(z)+1]
print(np.sum(grid))

7
day17/part2.py
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@@ -7,7 +7,6 @@ lines = [[(1 if x == '#' else 0) for x in x.strip()] for x in open("input.txt")]
grid = np.array(lines, dtype=np.byte)
grid = np.expand_dims(grid, axis=0)
grid = np.expand_dims(grid, axis=0)
print(grid.shape)
kernel = np.ones((3, 3, 3, 3), dtype=np.byte)
kernel[1, 1, 1, 1] = 0
@@ -19,14 +18,10 @@ for iter in range(6):
set_active = np.logical_and(grid == 0, neighbors == 3)
grid[set_inactive] = 0
grid[set_active] = 1
#if iter == 1: print(grid)
print(iter+1, grid.shape)
x = np.flatnonzero(grid.sum(axis=(1, 2, 3)))
y = np.flatnonzero(grid.sum(axis=(0, 2, 3)))
z = np.flatnonzero(grid.sum(axis=(0, 1, 3)))
w = np.flatnonzero(grid.sum(axis=(0, 1, 2)))
grid = grid[min(x):max(x)+1, :, :, :][:, min(y):max(y)+1, :, :][:, :, min(z):max(z)+1, :][:, :, :, min(w):max(w)+1]
print(iter+1, grid.shape)
grid = grid[min(x):max(x)+1, min(y):max(y)+1, min(z):max(z)+1, min(w):max(w)+1]
print(np.sum(grid))