Solve 2019 day 23

2024-10-11 22:01:40 -04:00
parent df31b47934
commit 67914a642a
3 changed files with 60 additions and 12 deletions
--- a/2019/d23.py
+++ b/2019/d23.py
@@ -0,0 +1,47 @@
+from lib import get_data, str_to_ints
+from d9 import Amp
+
+xs = str_to_ints(get_data(__file__))
+first_255 = True
+nat = None
+y_prev = None
+
+amps = []
+for i in range(50):
+    a = Amp(xs)
+    a.feed(i)
+    a.go()
+    amps.append(a)
+
+for j in range(1_000_000):
+    was_active = False
+    for i, a in enumerate(amps):
+        a.go()
+        if a.input_required:
+            a.feed(-1)
+
+        if len(a.outputs) > 0:
+            was_active = True
+            while len(a.outputs) < 3:
+                a.go()
+            addr = a.pop()
+            x = a.pop()
+            y = a.pop()
+            if addr == 255:
+                nat = (x, y)
+                if first_255:
+                    print(y)
+                    first_255 = False
+            else:
+                amps[addr].feed(x)
+                amps[addr].feed(y)
+
+    if not was_active and nat is not None:
+        x, y = nat
+        if y == y_prev:
+            print(y)
+            exit()
+        amps[0].feed(x)
+        amps[0].feed(y)
+        nat = None
+        y_prev = y