[wip] day 11
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parent
2cad32dda7
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32
day11/day11.py
Normal file
32
day11/day11.py
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#!/usr/bin/env python3
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from rules import part1_rules
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def main(grid, rules):
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generation = 0
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while True:
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changes, next_grid = step(grid, rules)
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generation += 1
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grid = next_grid
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assert generation < 1000
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if changes == 0:
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return next_grid.count("#")
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def step(grid, rules):
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changes = 0
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next_grid = grid[:]
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for index, cell in enumerate(grid):
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try:
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changes += rules[cell](index, grid, next_grid)
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except KeyError:
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pass
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return changes, next_grid
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if __name__ == "__main__":
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with open("input.txt") as infile:
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grid = list("".join(infile.read().splitlines()))
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print("Part 1 ", main(grid, rules=part1_rules))
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# print("Part 2 ", main(grid, rules={"L": handle_empty_2, "#": handle_occupied_2}))
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28
day11/grid.py
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28
day11/grid.py
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#!/usr/bin/env python3
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class Grid:
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def __init__(self, inp):
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lines = inp.read().splitlines()
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self.cells = list("".join(lines))
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self.height = len(lines)
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self.width = len(lines[0])
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def __getitem__(self, key):
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x, y = key
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return cells[y * self.width + x]
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def __setitem__(self, key, value):
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x, y = key
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cells[y * self.width + x] = value
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def __iter__(self):
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return self.cells.__iter__()
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def __str__(self):
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"\n".join(
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"".join(
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grid[pos : pos + grid_width]
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for pos in range(0, self.width, self.height)
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)
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)
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97
day11/input.txt
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97
day11/input.txt
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LLLLLLLLLLLLLLLLLLLLLLLLL.LLLLL..LLLLLLLLLLLL.LLL..LLLLLLLLLLLLLL.LL.LLLLL.LLLLLLLLL.LLLLLLLLLLLLL
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LLLLLLL.LLLLLLL.LLLLLLLLL.LLLLL.LLLL.LLLLLLLL.LLLLLLLLL.LLLL.LLLLLLLLLLLLLLLLLLLLLL..LLLLLLL..LLLL
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LLLLLL.LLLLLLLLLLLLLLLLLL.LLLLL.LLLLLLLLL.LLL.LLLLLLLLLLLLLL.LLLLLLL..LLLLLLLLLLLLLLLLLLLLLL.LLLLL
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LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLL.LLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL..LLLLLLLLL.LLLLLLL..LLLL
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.LLL.LL.LLLLLLL.LLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLL.LLLLLLLLL.LLLLLLLLLLLLL
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LL.LLLL.LLLLLLLLLLLLLLLLL.LLLLL.LLLL.LLLLLLLLLLLLL.LLL.LLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLL.LLLLL
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......L........LLL....L.L......L.LL...L.....L.LL..L..L..L..LLL..LL......L...L.LL.L.L....L.........
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LLLLLLL.LLLLLLL.LLLLLLLLL.LLLLLLLLLL.LLLLLLLLL.LLL.LLLLLLLLL.L.LLLLL.LLLLL.LLLLLLLLL.LLLLLLL.LLLLL
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LLLLLLLLLLLLLLL.LLLLLLLLL.LLLLL.LLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLL.LLLLLLLLLLLLLLLLL.LLLLL
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LLLLLLL.LLLLLLL.LLLLLLLLL.LLLLL.LLLL.LLLLLLLL.LLLL.LLLLLL.LL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLLL.LLLLL
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LLLLLLLLLLLLLLL.LLLLLLLLL.LLLLL.LLLL..LLLLLLL.LLLLLLLLLLLLLL.LLL.LLL..LLLL.LLLLLLLLL.LLLLLLL.LLLLL
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LLLLLLL.LLL.LLLLLLL.LLLLL.LLLLL.LLLL.LLLLLLLL.LLLL.LLLLLLLLLLLL.LLLL.L.LLL.LLLLLLLLLLLLLLLLL.LLLLL
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LLLLL.L.LLLLLLL.LLLLLL.LL.LLLLL.LLLL.LLLLLLLL.LLLL.LLLLLLLLL.L.L..LLLLLLL.LLLLLLLLLL.LLLLLLLLLLLLL
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.L....LLLL.LL.LL..L.L.L.L.LL..L..L.LLLLLL.L.LLLL.L.L..LL...L..L..LLL.....L........LL.L..L..L..L..L
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LLLLLLL.LLLLLLL.LLLLL.LLL.LLLLLLLLLL.LLLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLLLLLLLLLL.LLLLLLLLLLLL..LLLLLLLLLLLL.LLLL.LLLLLLLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLLL
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LLLLLLL.LL.LLLL.LLLLLLLLLLLLLL.LLLLLLLL.LLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLLL
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LLLLLLL.LLLLLLL.LLLLLLLLL.LLLLL.LLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLL.LLLLL.LLLLLLLLL.LLLLLLL.LLL.L
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LLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLLLLL.LLLLLLLLLLLLL.LLLLLLLLL.LLLLLLL.LLLLLLLL.LLLLLLLLLLL.LL.LLLLL
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.....L..L...L.L.L..........L..LLLL....L..L.L..LLLL...L..L....L.LL.L....L.L.L....LL.L..L......LLL.L
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LLLLLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLL.LLLLLLLLLLLLLLLLL.LLLLL.LL.LLLLLL.LL.LLLL.LLLLL
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LLLLLLL.L.LLLLLLLLLL.LLLL.L.LLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLLLL.LLLLLLLLLLLLL.LLLLLLLLLLLLL
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LLLLLLL.LLLLLLL.LLLLLLLLL.LLLLL.LLLLLLLLLLLLL.LLLL.LLLLLLLLLLLLLLLLL.LLLLLLLLLLLL.LLLLLLLLLL.LLLLL
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LLLLLLL.LLLLLLLLLLLLLLLLL.LLLLL.L.LL.LLLLLLLLLLLLL.LLLLLLLLL.LLLL.LLLLLLLLLLLLLLL.L..LLLLLLLLLLL.L
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LLLLLLL.LLLLLLLLLLLLLLLLL.LLLLLLLLLL.LLLLLL.L.LLLL.L.LLLLLLLLLLLLLLL.LLLLLLLLLLLLL.L.LLLLLLLLLLLLL
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LLLLLLLLLLLLLLL.LLLLLL.LL.LLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLL.LLLLLLLLL.LLLLLLL.LLLLL
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LLLLLLL.LL.LLLLLLLL.LLLLL.LLLLL.LLLL.LLLLLLLL.LLLLLLLLLLLLLL.LLLLLLL.LLLLL.LLLLLLL.L.LLLLLLL.LLLLL
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L.LLLLL.LLLLLLL.LLLLLLLLL.LLLLL.LLLLLLLLLLLLL.LLLLLLLLLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLLLLLLLLLLLLLLLLL.LLLLL.LLLLLLLLLLLLLLLLLL.LLLL.LLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLL.LLLL
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..L...L...L......L.LLLL.....LLL.L.LLLLLL.L.L.L..L.L.......L.L..L...L.L.L....LL...L.LL......LL.L.L.
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LLLLLLL.LLLLLLL.L.LLLLLLL.LLLLL.LLL.LLLLLLLLL.LLLLLLLLLLLLLL.LLLLLLL.LLLLL.LLLLLLLLL.LLLLLLL.LLLLL
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LLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLL..LLL.LLLLLLLLLLLLLLLLL.LLLLL.LLLLLLLLL.LLLLLLL.LLLLL
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LLLLLLL.LLLLLLLLLLLLLLLLL.LLLLL.LLLLLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLL.LLL.L.LLLLL.LLLLLLLLLLL.LLLLL
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LLLLLLL.LLLLLLL.LL.LLLLLL..LLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLL..LLLLLLLL.LLLL.LL.LLLLL
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LL.LLLL.LLLLLLLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLL.L.LLLLL.LLLLLLLLLLLLLLLLLLLLLLL.L.LLLLLLL.LLLLL
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LLLLLLL.LLLLLLL.LLLLLLLLL.LLLLL.LLLL.LLLLLLLL.LLLL.LLLLLL.LL.LLLLL.L.LLLLL.LLLLLLLLLLLLLLLLLLLLLLL
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LLLLLLL.LLL.LLL.LLLLLLLLLLLLLLL.LLLL.LLLLLLLL.LLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLL.LLLLL
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L.L.......L.L....LL......LL.LL...LL..L...........L.....LLL....L..LL.LL.L.L.LL.......L.L...L....L..
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LLLLLLL.LLLLLLLLLLLLLLLLL.LLLLL.LLLL.LLLLLLLLLLLLL.LLLLLLLLL.LLLLLLL.LL.LL.LLLLLLLLLLLLLLLLL.LLL.L
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LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLL.LL.LLLLLLLLLL.LL.LLLLLL.LLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL
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LLLLLLL.LLLLLLL.LLLLLLLLL.LLLLL.LLLL..LLLLLLLLLLLL.LLLLLLLLLLLLLLLLL.L..LL.LLL.LLLLLLLLLLLLLLLLLLL
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LLLLLLLLLL.LLLLLLLLLLLLLLLLLLLL.LLLL.LLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLL.LLLLL
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LLLLLLLLLL.LLLL.LLLLLLL.LLL.LLLLLLLL.LLLLLLLLLLLLL.LLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLL
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L.LLLLLLLLLLLLL.LL.LLLLLL.LLLLL.LLLL.LLLLLLLL.LLLLLLLLLLL.LL.LLLL.LLLLLLLLLL.LLLLLLL.LLLLLLL.LLLLL
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...LL.L..LL...L.......L.LL.......LL.LLL.L.LLL...L..LLL.L...L.......LL.LL.LL.L..LL........L.......L
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LLLLLLL.LLLLLLL.LLLLLLLLL.LLLLL.LLLL.LLLLLLLL.LLLLLLLLLLLLLL.LLLLLLL.LLLLL.LLLLLLLLLLLLLLLLL.LLLLL
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LLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLL.LLLLLLLL.LLLLLLLLL.LLLL.LLLLLLL.LLLLL.LLLLLLLLLLLLLLLLLLLLLLL
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LLLLLLL.LLLLLLLLLLLLLLLLL.LLLLL.LLLLLLLLLLLLL.LLLL.LLLLLLLLL.LLLLL.L..LLLL.LLLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLL.LLLLLLLL.LLLL..LLLLLLLLLLLLLLL..LL.LL.L.LLL.LLL.LLLLLLL.LLLLL
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LLLLL..LLLL.LLLLLLLLLLLLL.LLLLLLLL.L.LLLLLLLL.LLLL.LLLLLLLLL.L.LLL.LLLLLLL.LLLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLL.LLLLLLLL.LLLL.LLLLLLLLLLLLLLLLLLLLL.L.LLLLLLLLL.LLLLL.L.LLLLL
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.LLLLLL.LLLLLLL..LLLLLLLL.LLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLL.LLLLL
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LLLLLLL.LLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLLL
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..LL....L..........LL..L....L.LL...L.L...L.L...LLL..LL....LL.L.L.LLLL...L.L.......L.....LL........
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LLLLLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLL.LLLLLLLL.LLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LL.L.
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LLLLLLL.LLLL.LL.LLL.LLLLL.LLLLL.LLLL.LLLLLLL.LLLLL.LLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LL.LLLLLLL.LL
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LL.LLLLLLLLLL.LLLLLLLLLLL.LLLLL.LLLL.LLLLLLLL.LLLL.LLLLLLLLL.LLL.LLL.LLLLL.LLLLLLLLL.LLLLLLL.LLLLL
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LLLLLLLLLLLLLLL.LLLLLLLL.LLLLLL.LLLL.LLLLLLLLLLLLL.LLLLLLLLL.LLL.LLL.L.LLLLLLLLLLLLLLLLLLLLL.LLLLL
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LLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLL.L.LLLLLLLLLLL.LLLLLLLLL.LL.LLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLL.LLLLLLLL.LLLL.LLLLLLLLL.LLLLLLL.LLLL..LLLLLLLLLLLLLLLLL.LLLLL
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LLLLLLLLLLLLLLL.LLLLLLLLL.LLLLL.LLLL.LLLLLLLLLLLLL.LLLLLLLLL.LL.LLLLLLLLLL.LLLLLLLLLLLLLLLLL.LLLLL
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LLLLLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LL.LLLLLLLLLLLLLLLLL.L.LLLLL.LLLLLLLLL.LLLLLLL.LLLLL
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LLLLLLL.LLLLLLL.LLLLLLLLL.LLLLL.LLLLLLLLLLLLLLLLLL.LLLLL.LLL.LLLLLLLLLLLLL.L.LLLLLLL.LLLLLLLLLLLLL
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LLLLLLL.LLL.LLL.LLLLLLLLL.LLLLL.LLLLLLLLLLLLL.LLLL.LLLLLLLLL.LLLLLLL.LLLLL.LLLLLLLLLLLLLLLLL.LLLLL
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LLLLLLL.LLLLLL..LLLLLLLLL.LLLLLLLLLL.LLLLLLLL.LLLL.LLLLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLLL.LLLLL
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LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLL.LLLLLLLL.LLLL.LLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLL.LLLLLLL.L.LLL
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LLLLLLL.LLLLLLLLLLLLLLLLL.LLLLL.LLLL.LLLLLLLL.LLLL.LLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLL.LL.LLLLL
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LLLLLLLLLLL.LLL.LLLLLLLLL.LLLLL.LLLLLLLLLLLLL.LLL.LLLLLLLLLL.LLLLLLL.LLLLLLLLLL.LLLL.LLLLLLLLLLLLL
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LLLLLLL.LLLLLLLLLLLLLLLLL.LLLLLLLLLL.LLLLLLLLLLLLL.LLLLLLLLL.LLLLLLL.LLLLL.LLLLLLLLL.LLLLLLLLLLLLL
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LLLLLLL.LLLLL.L.LLL.LLLLLLLLLLLLLLLLLLLL.LLLLLLLLL.LLLLLLLLL.LLL.LLL.LLLLL.LLLLLLLLLLLLLLLLLLLLLLL
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LLLLLLL.LLLLLLL.LLLLLLLLL.L.LLL.LL.LLLLLLLL.L.LLLL.LLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLL
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.LL.LLL.LLLLLLL.LLLLLLLLL.LLLLL.LLLLLLLLLLLLL.LLLL.LLLLLLLLL.LLLLLLLLLLL.L.LLLLLLLLLLLLLLLLL.LLLLL
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LLLLLLL.LLLLLLLLLLLLLLLLL.LLLLLLLLLL.LLLLLLLL.LL.LLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLL
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LLLL.LL.LLLLLLL.LLLLLLLLL.LLLLL.LLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLL.LLLLL
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LLLLLLLLLLLLLLLLLLLLLLLLL.LLLLL.LL.LLLLLLLLLL.LLLL.LLLLLLLLL.LLLLLLL.LLLLL.LLLLLLL.LLLLLLLLL.LLLLL
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LLLLLLL.LLLLLLL..LLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLL.LLLLLLLLL.LL.LLLL.LLLLL.LLLLLLLLL.LLLLLLL.LLLLL
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115
day11/rules.py
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115
day11/rules.py
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#!/usr/bin/env python3
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from itertools import count, takewhile
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directions = (
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(-1, -1),
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(-1, 0),
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(-1, 1),
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(0, -1),
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(0, 1),
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(1, -1),
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(1, 0),
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(1, 1),
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)
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grid_width = 98
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grid_height = 97
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def handle_empty(index, grid, next_grid):
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"""
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If a seat is empty (L) and there are no occupied seats adjacent to it, the seat becomes occupied.
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"""
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neighbors = count_neighbors(index, grid)
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if neighbors == 0:
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next_grid[index] = "#"
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return 1
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return 0
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def handle_occupied(index, grid, next_grid):
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"""
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If a seat is occupied (#) and four or more seats adjacent to it are also occupied, the seat becomes empty.
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"""
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neighbors = count_neighbors(index, grid)
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if neighbors >= 4:
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next_grid[index] = "L"
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return 1
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return 0
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def count_neighbors(pos, grid):
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neighbors = 0
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x = pos % grid_width
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y = pos // grid_width
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for (dx, dy) in directions:
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xx = x + dx
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yy = y + dy
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if not in_bounds((xx, yy)):
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continue
|
||||
|
||||
if grid[yy * grid_width + xx] == "#":
|
||||
neighbors += 1
|
||||
return neighbors
|
||||
|
||||
|
||||
def handle_empty_2(index, grid, next_grid):
|
||||
"""
|
||||
If a seat is empty and there are no occupied seat visible in neither direction,
|
||||
the seat becomes occupied
|
||||
"""
|
||||
neighbors = 0
|
||||
x = index % grid_width
|
||||
y = index // grid_width
|
||||
for direction in directions:
|
||||
# keep moving in the specified direction, while checking
|
||||
# that we are in bounds of the grid
|
||||
for xx, yy in takewhile(in_bounds, move(x, y, direction)):
|
||||
cell = grid[yy * grid_width + xx]
|
||||
if cell == "#":
|
||||
neighbors += 1
|
||||
elif cell == "L":
|
||||
break # No occupied seat in that direction, we can break
|
||||
|
||||
if neighbors == 0:
|
||||
next_grid[index] = "#"
|
||||
return 1
|
||||
return 0
|
||||
|
||||
|
||||
def handle_occupied_2(index, grid, next_grid):
|
||||
"""
|
||||
An occupied seat becomes empty if there are five or more visible occupied
|
||||
seats in either direction.
|
||||
"""
|
||||
occupied = 0
|
||||
x = index % grid_width
|
||||
y = index // grid_width
|
||||
for direction in directions:
|
||||
for xx, yy in takewhile(in_bounds, move(x, y, direction)):
|
||||
print(xx, yy)
|
||||
cell = grid[yy * grid_width + xx]
|
||||
|
||||
if cell == "#":
|
||||
occupied += 1
|
||||
|
||||
if occupied >= 5:
|
||||
next_grid[index] = "L"
|
||||
return 1
|
||||
return 0
|
||||
|
||||
|
||||
def in_bounds(pos):
|
||||
x, y = pos
|
||||
return 0 <= x < grid_width and 0 <= y < grid_height
|
||||
|
||||
|
||||
def move(x, y, direction):
|
||||
pos = x, y
|
||||
while True:
|
||||
yield pos
|
||||
pos = x + direction[0], y + direction[1]
|
||||
|
||||
|
||||
part1_rules = {"L": handle_empty, "#": handle_occupied}
|
||||
part2_rules = {"L": handle_empty_2, "#": handle_occupied_2}
|
||||
Loading…
Reference in New Issue
Block a user