feat: Solve remove-nth-node-from-end-of-list problem

Author: hu6r1s

remove-nth-node-from-end-of-list/hu6r1s.py

@@ -0,0 +1,20 @@
+# 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: Optional[ListNode], n: int) -> Optional[ListNode]:
+        length = 0
+        node = head
+        while node:
+            length += 1
+            node = node.next
+
+        dummy = ListNode(None, head)
+        node = dummy
+        for _ in range(length - n):
+            node = node.next
+
+        node.next = node.next.next
+        return dummy.next