solution for remove nth node

Author: babebp

leetcode_Python/remove_nth_node.py

@@ -0,0 +1,21 @@
+# Definition for singly-linked list.
+# class ListNode:
+#     def __init__(self, val=0, next=None):
+#         self.val = val
+#         self.next = next
+class Solution:
+    def removeNthFromEnd(self, head, n: int):
+        fast = slow = head
+        for _ in range(n):
+            fast = fast.next
+            
+        if not fast:
+            return head.next
+        
+        while fast.next:
+            fast = fast.next
+            slow = slow.next
+        slow.next = slow.next.next
+        return head
+
+# LINK : https://leetcode.com/problems/remove-nth-node-from-end-of-list/