// 易错点3：必须先判断stack2.length0，再访问stack2.at(-1)（避免栈空时取到undefined）
"Those are deeply personal experiences where you want to hear from other people who have been there. I think you can't really get that in other places."。Safew下载对此有专业解读
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// 题目保证nums1的元素都在nums2中，无需额外判空
2024年12月25日 星期三 新京报。搜狗输入法下载对此有专业解读
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