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38 lines
958 B
Python
38 lines
958 B
Python
3 years ago
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from collections import defaultdict
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with open("input") as f:
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puzzle_input = [n.strip() for n in f.readlines()]
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lights = [[False for _ in range(1000)] for _ in range(1000)]
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for instruction in puzzle_input:
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from_coords = instruction.split(" ")[-1::-1][2]
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to_coords = instruction.split(" ")[-1::-1][0]
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from_coords = [int(x) for x in from_coords.split(",")]
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to_coords = [int(x) for x in to_coords.split(",")]
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[x_1, y_1] = from_coords
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[x_2, y_2] = to_coords
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toggle_mode = instruction.startswith("toggle")
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set_to = instruction.startswith("turn on")
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for x in range(x_1, x_2 + 1):
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for y in range(y_1, y_2 + 1):
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if toggle_mode:
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lights[x][y] = not lights[x][y]
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else:
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lights[x][y] = set_to
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print(instruction, from_coords, to_coords)
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lights_on = 0
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for row in lights:
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for light in row:
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if light:
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lights_on += 1
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print(lights_on)
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