AdventOfCode/Python/2017/16.py

38 lines
932 B
Python

from lib import *
input = read_input(2017, 16).strip()
p = [chr(97 + i) for i in range(16)]
for cmd in input.split(","):
if cmd[0] == "s":
n = int(cmd[1:])
p = p[-n:] + p[:-n]
elif cmd[0] == "x":
a, b = map(int, cmd[1:].split("/"))
p[a], p[b] = p[b], p[a]
elif cmd[0] == "p":
a, b = map(p.index, cmd[1:].split("/"))
p[a], p[b] = p[b], p[a]
print("".join(p))
p = [chr(97 + i) for i in range(16)]
q = p[:]
mem = []
while True:
mem.append(p[:])
for cmd in input.split(","):
if cmd[0] == "s":
n = int(cmd[1:])
p = p[-n:] + p[:-n]
elif cmd[0] == "x":
a, b = map(int, cmd[1:].split("/"))
p[a], p[b] = p[b], p[a]
elif cmd[0] == "p":
a, b = map(p.index, cmd[1:].split("/"))
p[a], p[b] = p[b], p[a]
if p == q:
break
print("".join(mem[1000000000 % len(mem)]))