diff --git a/contents/algorithms/linked-list.md b/contents/algorithms/linked-list.md
index 1fc9c203..cdd69697 100644
--- a/contents/algorithms/linked-list.md
+++ b/contents/algorithms/linked-list.md
@@ -46,3 +46,8 @@ Be familiar with the following routines because many linked list questions make
 - [Merge K Sorted Lists](https://leetcode.com/problems/merge-k-sorted-lists/)
 - [Remove Nth Node From End Of List](https://leetcode.com/problems/remove-nth-node-from-end-of-list/)
 - [Reorder List](https://leetcode.com/problems/reorder-list/)
+
+## Complexity
+
+- Access , Search O(N)
+- Insertion , Deletion O(1)