import sys
from typing import Dict, Tuple
from shared import get_exact_rows, parse_particle
if __name__ == '__main__':
lines = get_exact_rows(sys.argv[1])
particles_dict = dict((i, parse_particle(l)) for i, l in enumerate(lines))
for _ in range(10000):
position_to_particle_id = {} # type: Dict[Tuple[int, int, int], int]
deletion_set = set()
# if _ % 1000 == 0:
# print(_)
for p_id, particle in particles_dict.items():
particle.step()
if particle.position in position_to_particle_id:
deletion_set.add(p_id)
deletion_set.add(position_to_particle_id[particle.position])
else:
position_to_particle_id[particle.position] = p_id
for deletion_candidate in deletion_set:
del particles_dict[deletion_candidate]
print(len(particles_dict))
import sys
import shared
if __name__ == '__main__':
x = shared.get_exact_rows(sys.argv[1])
parsed_args = [shared.parse_disctree_row(l) for l in x]
bottom = shared.find_bottom(parsed_args)
d = shared.build_disctree_arguments_dict(parsed_args)
tree = shared.DiscNode(bottom, d)
different_child, expected_weight = tree.find_different_child()
different_child_candidate = different_child
while different_child_candidate:
different_child_candidate, different_child_candidate_weight = different_child.find_different_child(
)
if different_child_candidate:
different_child, expected_weight = different_child_candidate, different_child_candidate_weight
print(expected_weight -
(different_child.combined_weight() - different_child.weight))
import sys
from shared import get_exact_rows, parse_duet_instruction, DuetMachine
if __name__ == '__main__':
instructions = [
parse_duet_instruction(l) for l in get_exact_rows(sys.argv[1])
]
dm0 = DuetMachine(0, instructions)
dm1 = DuetMachine(1, instructions)
dm0.recipient = dm1
dm1.recipient = dm0
keep_running = True
turn = 0
while keep_running:
dm0.run_instructions()
dm1.run_instructions()
messages_remain = bool(len(dm0.message_queue) + len(dm1.message_queue))
neither_terminated = not (dm0.terminated or dm1.terminated)
keep_running = messages_remain and neither_terminated
turn += 1
print(dm1.messages_sent)
import sys
from typing import List
from shared import get_exact_rows
if __name__ == '__main__':
grid = list(get_exact_rows(sys.argv[1], strip=False))
current_position = [0, grid[0].index('|')]
direction = 1, 0
letters_encountered = [] # type: List[str]
current_character = None
steps = 0
while current_character != ' ':
steps += 1
current_position[0] += direction[0]
current_position[1] += direction[1]
current_character = grid[current_position[0]][current_position[1]]
if current_character.isalpha():
letters_encountered += current_character
elif current_character == '+':
left_turn = direction[1], direction[0] # this is not correct how did this work
right_turn = direction[1] * -1, direction[0] * -1
peek_left_character = None
peek_right_character = None
if 0 <= current_position[0] + left_turn[0] < len(grid) and 0 <= current_position[1] + left_turn[1] < len(grid[1]):
peek_left_character = grid[current_position[0] + left_turn[0]][current_position[1] + left_turn[1]]
if 0 <= current_position[0] + right_turn[0] < len(grid) and 0 <= current_position[1] + right_turn[1] < len(grid[1]):
peek_right_character = grid[current_position[0] + right_turn[0]][current_position[1] + right_turn[1]]
INFECTED = '#'
FLAGGED = 'F'
from_string = {'.': CLEAN, 'W': WEAKENED, 'F': FLAGGED, '#': INFECTED}
next_state = {
CLEAN: WEAKENED,
WEAKENED: INFECTED,
INFECTED: FLAGGED,
FLAGGED: CLEAN
}
if __name__ == '__main__':
ITERATIONS = 10000000
rows = list(shared.get_exact_rows(sys.argv[1]))
grid_size = len(rows) + 1000
notreallyinfinite_grid = shared.initialize_2d_array(
grid_size, grid_size, '.')
starting_bound = (grid_size - len(rows)) // 2
for i, r in enumerate(rows):
notreallyinfinite_grid[starting_bound +
i][starting_bound:starting_bound +
len(rows)] = list(r)
position = grid_size // 2, grid_size // 2
center = position
direction = (-1, 0)
infection_events = 0
clean_streak = 0
for _ in range(ITERATIONS):
import sys
from shared import get_exact_rows, parse_instruction, RegisterMachine
if __name__ == '__main__':
instructions = [parse_instruction(i) for i in get_exact_rows(sys.argv[1])]
rm = RegisterMachine()
for i in instructions:
rm.process_instruction(i)
print(rm.get_max_register())
print(rm.max_ever)
maneuver0 = Maneuver(write_value, tape_step, next_state)
next(lines_iterator) # 1 always comes after 0
write_value = int(next(lines_iterator)[-2])
tape_step = {'right': 1, 'left': -1}[next(lines_iterator).split()[-1][:-1]]
next_state = next(lines_iterator)[-2]
maneuver1 = Maneuver(write_value, tape_step, next_state)
return current_state, (maneuver0, maneuver1)
def parse_instructions(lines_iterator: Iterator[str]) -> Instructions:
instructions_out = {}
try:
while True:
state_letter, new_instruction = parse_single_instruction(
lines_iterator)
instructions_out[state_letter] = new_instruction
except StopIteration:
pass
return instructions_out
if __name__ == '__main__':
raw_lines_iterator = shared.get_exact_rows(sys.argv[1])
starting_state = next(raw_lines_iterator)[-2]
checksum_amount = int(next(raw_lines_iterator).split()[-2])
parsed_instructions = parse_instructions(raw_lines_iterator)
computer = Computer(parsed_instructions, starting_state)
for _ in range(checksum_amount):
computer.run_step()
print(computer.running_sum)