Added AOC 2017 day 08 - 10

www/statics/aoc/2017/10_solution-2.py

@@ -0,0 +1,45 @@
+#!/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)
+
+
+