feat: Remove Nth Node From End of List #248

Author: donghyeon95

remove-nth-node-from-end-of-list/donghyeon95.java

@@ -0,0 +1,37 @@
+import java.util.ArrayDeque;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Queue;
+
+/**
+ * Definition for singly-linked list.
+ * public class ListNode {
+ *     int val;
+ *     ListNode next;
+ *     ListNode() {}
+ *     ListNode(int val) { this.val = val; }
+ *     ListNode(int val, ListNode next) { this.val = val; this.next = next; }
+ * }
+ */
+class Solution {
+	public ListNode removeNthFromEnd(ListNode head, int n) {
+		ArrayList<ListNode> list = new ArrayList<>();
+		ListNode nhead = head;
+
+		while (nhead != null) {
+			list.add(nhead);
+			nhead = nhead.next;
+		}
+
+		int size = list.size();
+
+		if (size == n) {
+			return head.next;
+		}
+
+		list.get(size - n - 1).next = list.get(size - n).next;
+
+		return head;
+	}
+}
+