1 files changed, 55 insertions, 0 deletions
diff --git a/day8/day8.py b/day8/day8.py
new file mode 100644
index 0000000..446a02f
--- /dev/null
+++ b/day8/day8.py
@@ -0,0 +1,55 @@
+"""Day 7."""
+with open("input") as f:
+    instructions = f.read().rstrip().split("\n")
+
+def parse_instructions(instructions):
+    """Parse Instructions."""
+    acc = 0
+    visited = set()
+    loc = 0
+    for x in range(len(instructions)):
+        try:
+            inst, val = instructions[loc].split(" ")
+        except IndexError:
+            if x == len(instructions):
+                return acc, False
+            else:
+                return acc, True
+        if loc in visited:
+            break
+        else:
+            visited.add(loc)
+        if inst == "jmp":
+            loc += int(val)
+        elif inst == "acc":
+            acc += int(val)
+            loc += 1
+        elif inst == "nop":
+            loc += 1
+    successful = x == len(instructions)
+    return acc, successful
+
+
+def instruction_generator(instructions):
+    yield instructions
+    for x, line in enumerate(instructions):
+        inst, val = line.split(" ")
+        if inst == 'nop':
+            new = instructions.copy()
+            new[x] = f"jmp {val}"
+            yield new
+        elif inst == 'jmp':
+            new = instructions.copy()
+            new[x] = f"nop {val}"
+            yield new
+
+
+# Part 1
+acc, _ = parse_instructions(instructions)
+print(acc)
+
+# Part 2
+for intset in list(instruction_generator(instructions)):
+    acc, successful = parse_instructions(intset)
+    if successful:
+        print(acc)