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java: add «206. Reverse Linked List»

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Signed-off-by: Matej Focko <mfocko@redhat.com>
This commit is contained in:
Matej Focko 2024-03-21 10:42:25 +01:00
parent 84ba9d343b
commit 7dc90ebe06
Signed by: mfocko
GPG key ID: 7C47D46246790496
1 changed files with 14 additions and 0 deletions
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java/reverse-linked-list.java Normal file
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class Solution {
public ListNode reverseList(ListNode head) {
ListNode tail = null;
while (head != null) {
var tmp = head.next;
head.next = tail;
tail = head;
head = tmp;
}
return tail;
}
}