def solution2(file_name):
slopes = [(1, 1), (3, 1), (5, 1), (7, 1), (1, 2)]
map_lines = prepare_data(file_name)
trees_on_slope = [
count_trees_on_slope(map_lines, slope) for slope in slopes
]
return math_utils.prod(trees_on_slope)
def calculate_with_chinese_remainder(ids_with_gaps):
bus_ids = ids_with_gaps.keys()
produit_total = math_utils.prod(bus_ids)
e_a_s = [
calculate_prod_e_a(calculate_e(bus_id, produit_total), ids_with_gaps,
bus_id) for bus_id in bus_ids
]
return sum(e_a_s) % produit_total
def solution2(input):
parsed = prepare_data(input)
valid_tickets = parsed.remove_errors()
num_values = len(parsed.fields)
values_per_index = group_ticket_values_by_index(num_values, valid_tickets)
valid_index_by_field = get_valid_index_by_field(parsed, values_per_index)
return math_utils.prod([
parsed.your_ticket.values[i] for i in dict(
filter(lambda field: field[1].startswith('departure'),
valid_index_by_field.items())).keys()
])
def solution2(file_name):
prepared_data = prepare_data(file_name)
gaps = find_gaps(prepared_data)
consecutive = 0
multiples = []
for gap in gaps:
if gap == 1:
consecutive += 1
else:
if consecutive == 2:
multiples.append(2)
elif consecutive == 3:
multiples.append(4)
elif consecutive == 4:
multiples.append(7)
consecutive = 0
return math_utils.prod(multiples)
def test_solution():
result = solution('input')
assert 51214443014783 == math_utils.prod(result)
def solution(file_name):
tiles = prepare_data(file_name)
corner_tiles = list(filter(lambda tile: len(tile.neighbours) == 2, tiles))
result = [tile.id for tile in corner_tiles]
print(math_utils.prod(result))
return result
def multiply(numbers):
return math_utils.prod(numbers)