advent-of-code

commit 1b92a0e5b8ff9d8ba89274bb2c872c6fc9e4884e
parent 305e20b2f6c6f58c010d47551a2b075019706b92
Author: mpizzzle <michael.770211@gmail.com>
Date:   Sun, 10 Dec 2017 18:15:49 +0000

I actually figured out a lambda functiongit add .

Diffstat:
M
puzzle10.py
 | 
11
+++--------

1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/puzzle10.py b/puzzle10.py
@@ -4,9 +4,6 @@ with open('files/puzzle10.txt') as f:
     puzzle_ascii = [ord(c) for c in blep[:len(blep) - 1]]
     puzzle_ascii.extend([17, 31, 73, 47, 23])
 
-my_list = [i for i in range(256)]
-skip, pos = [0], [0]
-
 def round(this_input, this_list, skip, pos):
     for length in this_input:
         twist = reversed([this_list[i % len(this_list)] for i in range(pos[0], pos[0] + length)])
@@ -15,7 +12,8 @@ def round(this_input, this_list, skip, pos):
         pos[0] += length + skip[0]
         skip[0] += 1
 
-round(puzzle_input, my_list, skip, pos)
+my_list = [i for i in range(256)]
+round(puzzle_input, my_list, [0], [0])
 print my_list[0] * my_list[1]
 
 my_list = [i for i in range(256)]
@@ -27,9 +25,6 @@ for i in range(64):
 knot_hash = []
 
 for block in [my_list[i:i + 16] for i in range(0, len(my_list), 16)]:
-    value = 0
-    for i in block:
-        value ^= i
-    knot_hash.append(chr(value))
+    knot_hash.append(chr(reduce(lambda x, y: x ^ y, block)))
 
 print "".join(knot_hash).encode("hex")