Problem 14

0014.py

@@ -0,0 +1,29 @@
+def recurse(num):
+    result = []
+
+    while (num != 1):
+        result.append(num)
+        if (num % 2 == 0):
+            num = int(num / 2)
+        else:
+            num = 3 * num + 1
+
+    result.append(num)
+
+    return result
+
+longest = 0
+longest_start = 0
+
+for i in range(1, 1000000):
+    result = recurse(i)
+    length = len(result)
+
+    if (length > longest):
+        longest = length
+        longest_start = i
+
+print(longest)
+print(longest_start)
+
+# answer 837799