def find_box(program, box_size):
left = right = 0
ends = []
y = 0
while True:
left_val = 0
while not left_val:
left_val, _, _ = execute(program[:], [left, y])
if not left_val:
left += 1
right_val = 1
if y < 5:
# Special case deals with 1 width beam moving >1 space between rows
seen_beam = False
x = 0
for x in range(10):
right_val, _, _ = execute(program[:], [x, y])
if right_val:
seen_beam = True
elif seen_beam:
break
right = x
else:
while right_val:
right_val, _, _ = execute(program[:], [right, y])
if right_val:
right += 1
ends.append(right)
if (
right - left >= box_size and
ends[y + 1 - box_size] > left + box_size - 1
):
return left * 10000 + y + 1 - box_size
y += 1
def count_pulls(program):
count = 0
left = right = 0
for y in range(50):
left_val = 0
while not left_val:
left_val, _, _ = execute(program[:], [left, y])
if not left_val:
left += 1
right_val = 1
if y < 5:
# Special case deals with 1 width beam moving >1 space between rows
seen_beam = False
x = 0
for x in range(10):
right_val, _, _ = execute(program[:], [x, y])
if right_val:
seen_beam = True
elif seen_beam:
break
right = x
else:
while right_val:
right_val, _, _ = execute(program[:], [right, y])
if right_val:
right += 1
row_len = min(right, 50) - min(left, 50)
count += row_len
return count
def instance(idx, ingress):
program_instance = program[:]
ingress.put(idx)
provider = input_provider(ingress)
pc = rb = 0
while True:
d, pc, rb = execute(program_instance, provider, pc, rb)
x, pc, rb = execute(program_instance, provider, pc, rb)
y, pc, rb = execute(program_instance, provider, pc, rb)
if SHOULD_STOP:
return
egress.put((d, (x, y)))
def play_game(program):
val = pc = rb = 0
screen = np.zeros((38, 22), dtype=np.int8)
output = []
last_score = 0
while val != "HALT":
ball_pos = np.argwhere(screen == 4)
paddle_pos = np.argwhere(screen == 3)
if ball_pos.shape[0] == 0 or paddle_pos.shape[0] == 0:
direction = 0
else:
ball_x = ball_pos[0][0]
paddle_x = paddle_pos[0][0]
if ball_x == paddle_x:
direction = 0
elif ball_x < paddle_x:
direction = -1
else:
direction = 1
val, pc, rb = execute(program, [direction], pc, rb)
output.append(val)
if len(output) == 3:
if output[0] == -1 and output[1] == 0:
last_score = output[2]
screen[output[0], output[1]] = output[2]
output = []
print(last_score)
def rescue_bots(program, instructions):
program[0] = 2
cmds = iter([ord(c) for p in instructions for c in p + "\n"])
idx = pc = rb = out = 0
while out < 128:
idx += 1
out, pc, rb = execute(program, cmds, pc, rb)
return out
def calc_blocks(program):
val = pc = rb = 0
screen = np.zeros((38, 22), dtype=np.int8)
output = []
while val != "HALT":
val, pc, rb = execute(program, [], pc, rb)
output.append(val)
if len(output) == 3:
screen[output[0], output[1]] = output[2]
output = []
return np.sum(screen == 2)
def run(program):
out = pc = rb = 0
cmds = generate_cmds()
while out < 128:
out, pc, rb = execute(program, cmds, pc, rb)
if out == "HALT":
return
elif out >= 128:
print(f"Damage: {out}")
return
elif out == 10:
print()
else:
print(chr(out), end="")
def render_grid(program):
pc = rb = 0
rows = []
row = []
while True:
out, pc, rb = execute(program, [], pc, rb)
if out == "HALT":
if row:
print("Adding final row")
rows.append(row)
break
elif out == 10:
if row:
rows.append(row)
row = []
else:
row.append(chr(out))
return np.array(rows).transpose((1, 0))
def create_map(program):
def add_candidates(l, pos, state, c, r, cnt):
for cmd, move in directions.items():
l.append((pos + move, cmd, state[:], c, r, cnt + 1))
explored_nodes = defaultdict(lambda: -1)
oxygen_location = None
oxygen_steps = None
explored_nodes[(0, 0)] = 1
frontier = []
add_candidates(frontier, np.array([0, 0]), program, 0, 0, 0)
while len(frontier) > 0:
new_pos, instr, s, pc, rb, steps = frontier.pop(0)
if explored_nodes[tuple(new_pos)] != -1:
continue
out, pc, rb = execute(s, [instr], pc, rb)
explored_nodes[tuple(new_pos)] = out
if out == 2:
oxygen_location = new_pos
oxygen_steps = steps
if out != 0:
add_candidates(frontier, new_pos, s, pc, rb, steps)
return oxygen_location, oxygen_steps, explored_nodes
yield 10
for c in "south":
yield ord(c)
yield 10
if __name__ == "__main__":
with open("../input/day25.txt") as f:
program_text = f.readline()
program = [int(val) for val in program_text.split(",")]
pc = rb = 0
gen = input_generator(instructions)
buffer = ""
checkpoint = False
while True:
out, pc, rb = execute(program, gen, pc, rb)
if out == "HALT":
break
buffer += chr(out)
if out == 10:
if "Security Checkpoint" in buffer:
checkpoint = True
elif checkpoint and "Command" in buffer:
break
buffer = ""
saved_program, saved_pc, saved_rb = program[:], pc, rb
for num_to_drop in range(len(possible_items) + 1):
for to_drop in itertools.combinations(possible_items, num_to_drop):
program, pc, rb = saved_program[:], saved_pc, saved_rb
gen = drop_generator(to_drop)
failed = False