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42 lines
914 B
Python
42 lines
914 B
Python
import fileinput
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import re
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import sys
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commandExpr = re.compile(r"^(toggle|turn (on|off)) (\d+),(\d+) through (\d+),(\d+)$")
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lights = []
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for x in range(1000):
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lights.append([])
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for y in range(1000):
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lights[x].append(False)
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for line in fileinput.input():
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match = commandExpr.search(line)
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if not match:
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print("Invalid string")
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sys.exit(1)
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xStart = int(match.group(3))
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yStart = int(match.group(4))
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xEnd = int(match.group(5))
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yEnd = int(match.group(6))
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command = match.group(1)
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for x in range(xStart, xEnd + 1):
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for y in range(yStart, yEnd + 1):
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if command == "toggle":
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lights[x][y] = not lights[x][y]
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elif "on" in command:
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lights[x][y] = True
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else:
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lights[x][y] = False
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total = 0
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for row in lights:
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total += sum([int(i) for i in row])
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print(total)
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