1 files changed, 23 insertions, 0 deletions
diff --git a/2016/7b.py b/2016/7b.py
new file mode 100755
index 0000000..ea31643
--- /dev/null
+++ b/2016/7b.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+
+import sys
+
+count=0
+
+for line in sys.stdin:
+	line=line[:-1].replace("]","[").split("[")
+	p1=line[0::2]
+	p2=line[1::2]
+	p2bab=set()
+
+	for bl in p2:
+		for i in range(len(bl)-2):
+			if bl[i]==bl[i+2] and bl[i]!=bl[i+1]:
+				p2bab.add(bl[i:i+3])
+
+	for bl, i in ((bl,i) for bl in p1 for i in range(len(bl)-2)):
+		if bl[i]==bl[i+2] and bl[i]!=bl[i+1] and "".join([bl[i+1],bl[i],bl[i+1]]) in p2bab:
+			count+=1
+			break
+
+print(count)