93 lines
2.6 KiB
Python
93 lines
2.6 KiB
Python
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#!/usr/bin/env python3
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from typing import TextIO
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grid: dict[tuple, bool] = {}
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newgrid: dict[tuple, int] = {}
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def part1(instructions: TextIO) -> int:
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for ins in instructions:
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ins = ins.strip().split()
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# print(ins)
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command = ins[0:2]
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if len(ins) == 5:
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fr = tuple([int(x) for x in ins[2].split(",")])
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else:
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fr = tuple([int(x) for x in ins[1].split(",")])
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to = tuple([int(x) for x in ins[-1].split(",")])
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if command == ["turn", "off"]:
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for x in range(fr[0], to[0] + 1):
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for y in range(fr[1], to[1] + 1):
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if (x, y) in grid:
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del grid[(x, y)]
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elif command == ["turn", "on"]:
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for x in range(fr[0], to[0] + 1):
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for y in range(fr[1], to[1] + 1):
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if (x, y) not in grid:
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grid[(x, y)] = True
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else: # Toggle
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for x in range(fr[0], to[0] + 1):
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for y in range(fr[1], to[1] + 1):
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if (x, y) not in grid:
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grid[(x, y)] = True
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else:
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del grid[(x, y)]
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return len(grid)
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def part2(instructions: TextIO) -> int:
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for ins in instructions:
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ins = ins.strip().split()
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command = ins[0:2]
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if len(ins) == 5:
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fr = tuple([int(x) for x in ins[2].split(",")])
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else:
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fr = tuple([int(x) for x in ins[1].split(",")])
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to = tuple([int(x) for x in ins[-1].split(",")])
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if command == ["turn", "off"]:
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for x in range(fr[0], to[0] + 1):
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for y in range(fr[1], to[1] + 1):
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if (x, y) not in newgrid:
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newgrid[(x, y)] = 0
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elif newgrid[(x, y)] != 0:
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newgrid[(x, y)] -= 1
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elif command == ["turn", "on"]:
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for x in range(fr[0], to[0] + 1):
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for y in range(fr[1], to[1] + 1):
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if (x, y) not in newgrid:
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newgrid[(x, y)] = 1
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else:
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newgrid[(x, y)] += 1
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else: # Toggle
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for x in range(fr[0], to[0] + 1):
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for y in range(fr[1], to[1] + 1):
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if (x, y) not in newgrid:
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newgrid[(x, y)] = 2
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else:
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newgrid[(x, y)] += 2
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return sum(newgrid.values())
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if __name__ == "__main__":
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with open("day06.txt", "r") as f:
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print(part1(f))
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with open("day06.txt", "r") as f:
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print(part2(f))
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