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adventofcode/2025/04/part2.py

24 lines
784 B
Python

import numpy as np
from part1 import read_map, print_map, count_neighbours, count_extractable
def remove_iteratively(tp_map):
max_rolls = 4
rolls_removed_counts = []
rolls_removed_count = 1_000_000
while rolls_removed_count > 0:
neighbour_counts = count_neighbours(tp_map)
rolls_to_remove = (neighbour_counts < max_rolls)*tp_map
rolls_removed_count = rolls_to_remove.sum()
rolls_removed_counts.append(rolls_removed_count)
tp_map[rolls_to_remove] = False
return sum(rolls_removed_counts)
if __name__ == "__main__":
test_map = read_map("testinput")
# print(test_map)
assert count_extractable(test_map) == 13
assert remove_iteratively(test_map.copy()) == 43
# TODO: Compare the output maps.
real_map = read_map("input")
print(remove_iteratively(real_map.copy()))