Merge pull request #517 from Iamtripathisatyam/main

Linked List Cycle 2

Author: gantavyamalviya

Python/linked_list_cycle_2.py

@@ -0,0 +1,15 @@
+class Solution:
+    def detectCycle(self, head: Optional[ListNode]) -> Optional[ListNode]:
+        slow, fast = head, head
+        while fast and fast.next:
+            slow = slow.next
+            fast = fast.next.next
+            if slow == fast:
+                break
+        else:
+            return None
+        slow = head
+        while slow != fast:
+            slow = slow.next
+            fast = fast.next
+        return