class Y2019D21(object):
def __init__(self, file_name):
self.computer = Intcode(file_name)
def part1(self):
result = self._run("NOT A J\n"
"NOT B T\n"
"OR T J\n"
"NOT C T\n"
"OR T J\n"
"AND D J\n"
"WALK\n")
print("Part 1:", result)
def part2(self):
result = self._run("NOT H T\n"
"OR C T\n"
"AND B T\n"
"AND A T\n"
"NOT T J\n"
"AND D J\n"
"RUN\n")
print("Part 2:", result)
def _run(self, *program: str):
self.computer.reset()
self.computer.run()
self.computer.output_str()
for command in program:
self.computer.input_str(command)
result = self.computer.output_str()
if "Didn't make it across" in result:
print(result)
return -1
else:
return self.computer.output()
class Y2019D17(object):
def __init__(self, file_name):
self.computer = Intcode(file_name)
def part1(self):
self.computer.reset()
self.computer.run()
map_string = self.computer.output_str()
grid = Grid.from_str(map_string)
result = 0
scaffolding = grid.find('#')
for scaffold in scaffolding:
intersecting = all(grid[neighbor] == '#'
for neighbor in scaffold.neighbors())
if intersecting:
result += scaffold.x * scaffold.y
print("Part 1:", result)
def part2(self):
self.computer.reset()
self.computer.ram[0] = 2
self.computer.run()
self.computer.output_str()
self.computer.input_str("B,C,B,C,A,B,C,A,B,A\n")
self.computer.output_str()
self.computer.input_str("R,6,L,8,L,10,R,6\n")
self.computer.output_str()
self.computer.input_str("R,6,L,6,L,10\n")
self.computer.output_str()
self.computer.input_str("L,8,L,6,L,10,L,6\n")
self.computer.output_str()
self.computer.input_str("n\n")
map_string = self.computer.output_str()
grid = Grid.from_str(map_string)
result = self.computer.output()
print("Part 2:", result)
class Y2019D25(object):
def __init__(self, file_name):
self.computer = Intcode(file_name)
self._do_not_take = [
"escape pod", # "You're launched into space! Bye!"
"giant electromagnet", # "The giant electromagnet is stuck to you. You can't move!!"
"infinite loop", # Literally halts the program in an infinite loop
"molten lava", # "The molten lava is way too hot! You melt!"
"photons", # "It is suddenly completely dark! You are eaten by a Grue!"
"mug", # Too heavy, by itself
"prime number", # Too heavy, by itself
"weather machine", # Too heavy, by itself
"festive hat", # Don't take this and our weight is correct with other items
]
def part1(self):
self.computer.reset()
self.computer.run()
back_moves: List[str] = []
path_from_security: Optional[List[str]] = None
seen: Set[Tuple[str, str]] = set()
taken: Set[str] = set()
while True:
output = self.computer.output_str()
# print(output)
location = DungeonLocation.read(output)
if location.name == "Security Checkpoint":
path_from_security = back_moves.copy()
previous_move = back_moves.pop()
# print(f"Going back {previous_move}")
self.computer.input_str(f"{previous_move}\n")
continue
for item in location.items:
if item not in self._do_not_take:
taken.add(item)
input_str = f"take {item}\n"
# print(input_str)
self.computer.input_str(input_str)
response = self.computer.output_str()
# print(response)
moved_through_a_door = False
opposite_direction = None
for direction in location.doors_here_lead:
back_direction = back_moves[-1] if len(
back_moves) > 0 else None
if back_direction == direction:
continue
movement = (location.name, direction)
if movement in seen:
continue
if direction == "north":
opposite_direction = "south"
elif direction == "south":
opposite_direction = "north"
elif direction == "east":
opposite_direction = "west"
elif direction == "west":
opposite_direction = "east"
seen.add(movement)
back_moves.append(opposite_direction)
moved_through_a_door = True
# print(f"Going {direction}")
self.computer.input_str(f"{direction}\n")
break
if not moved_through_a_door:
if len(back_moves) > 0:
previous_move = back_moves.pop()
# print(f"Going back {previous_move}")
self.computer.input_str(f"{previous_move}\n")
else:
break
for movement in path_from_security:
if movement == "north":
movement = "south"
elif movement == "south":
movement = "north"
elif movement == "east":
movement = "west"
elif movement == "west":
movement = "east"
self.computer.input_str(f"{movement}\n")
self.computer.output_str()
self.computer.input_str("east\n")
output = self.computer.output_str()
result = re.search(r"(\d+)", output).group(1)
print("Part 1:", result)
def part2(self):
pass