# -*- coding: utf-8 -*-
from advent_tools import get_input_string, print_answer
def direction(instruction):
if instruction == '(':
return 1
if instruction == ')':
return -1
raise ValueError('Instruction has to be either "(" or ")"')
input_string = get_input_string()
first_answer = input_string.count('(') - input_string.count(')')
print_answer(1, first_answer)
current_floor = 0
for idx, instruction in enumerate(input_string):
current_floor += direction(instruction)
if current_floor < 0:
print_answer(2, idx + 1)
break
if current_floor >= 0:
print('Second answer: Negative floor was never reached')
# -*- coding: utf-8 -*-
from advent_tools import get_input_string, print_answer
shifts = {
'^': (0, 1),
'v': (0, -1),
'>': (1, 0),
'<': (-1, 0)
}
def move(current_pos, direction):
shift = shifts[direction]
return (current_pos[0] + shift[0], current_pos[1] + shift[1])
instructions = get_input_string()
position = (0, 0)
visited = {position}
for direction in instructions:
position = move(position, direction)
visited.add(position)
print_answer(1, len(visited))
santa = (0, 0)
robo_santa = (0, 0)
visited = {(0, 0)}