46 lines
957 B
Python
46 lines
957 B
Python
|
#!/usr/bin/env python3
|
||
|
|
|
||
|
|
import aoc
|
||
|
|
|
||
|
|
def twist(nums: list, nstart: int, nlen: int):
|
||
|
|
sublist = list()
|
||
|
|
for i in range(0, nlen):
|
||
|
|
sublist.append(nums[(i+nstart) % len(nums)])
|
||
|
|
for i in range(0, nlen):
|
||
|
|
nums[(i+nstart) % len(nums)] = sublist[nlen-i-1]
|
||
|
|
|
||
|
|
|
||
|
|
rawinput = aoc.read_input(10).strip()
|
||
|
|
|
||
|
|
inputlengths = list(map(lambda x: ord(x), rawinput))
|
||
|
|
inputlengths.append(17)
|
||
|
|
inputlengths.append(31)
|
||
|
|
inputlengths.append(73)
|
||
|
|
inputlengths.append(47)
|
||
|
|
inputlengths.append(23)
|
||
|
|
|
||
|
|
numberslist = list(range(0, 256))
|
||
|
|
|
||
|
|
currpos = 0
|
||
|
|
skipsize = 0
|
||
|
|
for iround in range(0,64):
|
||
|
|
for ilen in inputlengths:
|
||
|
|
twist(numberslist, currpos, ilen)
|
||
|
|
currpos = (currpos + ilen + skipsize) % len(numberslist)
|
||
|
|
skipsize += 1
|
||
|
|
|
||
|
|
densehash = list()
|
||
|
|
|
||
|
|
for i1 in range(0, 16):
|
||
|
|
xor = 0
|
||
|
|
for i2 in range(0, 16):
|
||
|
|
xor = xor ^ numberslist[i1*16 + i2]
|
||
|
|
densehash.append(xor)
|
||
|
|
|
||
|
|
hex = "".join(map(lambda n: "%0.2x" % n, densehash))
|
||
|
|
|
||
|
|
print(hex)
|
||
|
|
|
||
|
|
|
||
|
|
|