Create Can-you-get-the-loop-?.py

Author: AG-Systems

Codewars/Can-you-get-the-loop-?.py

@@ -0,0 +1,21 @@
+def loop_size(node):
+    if node is None: 
+        return 0
+    slow = node
+    fast = node 
+    flag = 0
+    while(slow and slow.next and fast and
+          fast.next and fast.next.next): 
+        if slow == fast and flag != 0: 
+            count = 1
+            slow = slow.next
+            while(slow != fast): 
+                slow = slow.next
+                count += 1
+            return count 
+          
+        slow = slow.next
+        fast = fast.next.next
+        flag = 1
+    return 0
+