From dc12f630582a505efcfd8152db646b9041a46d11 Mon Sep 17 00:00:00 2001
From: Matthias Bilger <matthias@bilger.info>
Date: Tue, 8 Dec 2020 06:46:39 +0100
Subject: [PATCH] day08

---
 day08/module.py | 95 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 day08/module.py

diff --git a/day08/module.py b/day08/module.py
new file mode 100644
index 0000000..fb7e1ef
--- /dev/null
+++ b/day08/module.py
@@ -0,0 +1,95 @@
+from aoc.input import get_input
+import copy
+import time
+import collections
+import re
+from aoc.partselector import part_one, part_two
+import functools
+
+def pw(line):
+    return line.strip().split(' ')
+
+def p1():
+    inp = get_input(pw)
+
+    visited = set()
+    current = 0
+    value = 0
+    while current not in visited:
+        visited.add(current)
+        if inp[current][0] == 'nop':
+            current += 1
+            continue
+        if inp[current][0] == 'jmp':
+            if inp[current][1][0] == '+':
+                current += int(inp[current][1][1:])
+            else:
+                current -= int(inp[current][1][1:])
+            continue
+        if inp[current][0] == 'acc':
+            if inp[current][1][0] == '+':
+                value += int(inp[current][1][1:])
+            else:
+                value -= int(inp[current][1][1:])
+            current += 1
+            continue
+    print(current)
+    print(value)
+    return inp
+
+
+def p2(inp):
+    inp.append(['end', '0'])
+    orig = copy.deepcopy(inp)
+    for nopcount in range(0, len(inp)):
+        if inp[nopcount][0]  not in ['nop', 'jmp']:
+            continue
+        visited = set()
+        current = 0
+        value = 0
+        inp = copy.deepcopy(orig)
+        print('-----')
+        print(inp[0])
+        while current not in visited:
+            print(current)
+            visited.add(current)
+            t = inp[current][0]
+            if current == nopcount:
+                if inp[current][0] == 'nop':
+                    inp[current][0] = 'jmp'
+                else:
+                    inp[current][0] = 'nop'
+            if (t != inp[current][0]):
+                print(t, inp[current][0], current, nopcount)
+            if inp[current][0] == 'nop':
+                current += 1
+
+            if inp[current][0] == 'jmp':
+                if inp[current][1][0] == '+':
+                    current += int(inp[current][1][1:])
+                else:
+                    current -= int(inp[current][1][1:])
+            if inp[current][0] == 'acc':
+                if inp[current][1][0] == '+':
+                    value += int(inp[current][1][1:])
+                else:
+                    value -= int(inp[current][1][1:])
+                current += 1
+            if inp[current][0] == 'end':
+                print('---', value)
+                return
+    print(value)
+    return 0
+
+if part_one():
+    start = time.time()
+    result1 = p1()
+    print(round(1000*(time.time() - start), 2), 'ms')
+
+
+if part_two():
+    start = time.time()
+    p2(result1)
+    print(round(1000*(time.time() - start), 2), 'ms')
+
+