1 files changed, 21 insertions, 0 deletions
diff --git a/014.py b/014.py
new file mode 100644
index 0000000..7df8d53
--- /dev/null
+++ b/014.py
@@ -0,0 +1,21 @@
+def chain_len(n):
+	count = 1
+	while(n != 1):
+		if not n & 1:
+			n = n / 2
+		else:
+			n = 3*n + 1
+		count += 1
+	return count
+
+max_len = 0
+max_start = 0
+
+for i in range(1, 1000000):
+	len = chain_len(i)
+	if len > max_len:
+		max_start = i
+		max_len = len
+
+print max_start
+