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修改（0142.环形链表II.md）：优化typescript版本代码

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Steve2020
2022-06-04 23:38:12 +08:00
parent 9c325284fd
commit 0245b3ae50
1 changed files with 3 additions and 3 deletions
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6
problems/0142.环形链表II.md
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@ -301,13 +301,13 @@ function detectCycle(head: ListNode | null): ListNode | null {
let slowNode: ListNode | null = head,
fastNode: ListNode | null = head;
while (fastNode !== null && fastNode.next !== null) {
slowNode = (slowNode as ListNode).next;
slowNode = slowNode!.next;
fastNode = fastNode.next.next;
if (slowNode === fastNode) {
slowNode = head;
while (slowNode !== fastNode) {
slowNode = (slowNode as ListNode).next;
fastNode = (fastNode as ListNode).next;
slowNode = slowNode!.next;
fastNode = fastNode!.next;
}
return slowNode;
}