13b

thirteen.py

@@ -8,8 +8,17 @@ def is_mirror(pic, axis):
     c = a == b
     return c.all()
 
+def is_smudged(pic, axis):
+    a = pic[:axis]
+    b = pic[i:i*2][::-1]
+    c = a != b
+    #ic(c)
+    #ic(c.sum())
+    #assert False
+    return c.sum() == 1
+
 ms = [np.array([[c == '#' for c in l] for l in p.strip().split()]) for p in pgphs(open(0).read())]
-score = 0
+score, score2 = 0, 0
 for m in ms:
     for tran, scoretran in ((lambda a: a, lambda n, h: n * 100),
                             (lambda a: a[::-1], lambda n, h: (h - n) * 100),
@@ -20,4 +29,7 @@ for m in ms:
             if is_mirror(tran(m), i):
                 #ic(tran, i, draw(m))
                 score += scoretran(i, height)
+            if is_smudged(tran(m), i):
+                score2 += scoretran(i, height)
 print(score)
+print(score2)