Reverse Linked List 2020-09-11 08:45
public static ListNode reverseList(ListNode head) {
ListNode pre = null;
ListNode current = head;
ListNode next;
while (current != null) {
next = current.next;
current.next = pre;
pre = current;
current = next;
}
return pre;
}
| Runtime | Memory |
|---|---|
| 0 ms | 39.4 MB |
EOF