public static Node reverseList(Node node) {
Node pre = null;
Node next = null;
while (node != null) {
next = node.next;
node.next = pre;
pre = node;
node = next;
}
return pre;
}
public static Node reverseList(Node node) {
Node pre = null;
Node next = null;
while (node != null) {
next = node.next;
node.next = pre;
pre = node;
node = next;
}
return pre;
}
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