思路：先对 nums2 用单调栈求每个元素的下一个更大值，存入 Map 缓存；再遍历 nums1 直接查 Map 得结果。时间复杂度 O(len1 + len2)。
Nothing actually offers a couple of earbuds, as well as full-sized headphones, including the Nothing Headphone 1 and Nothing Headphone Pro. The Headphone (a) name indicates that these are an entirely new product line.，这一点在heLLoword翻译官方下载中也有详细论述
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黎智英欺詐案上訴得直：定罪及刑罰被撤銷，出獄時間提前
for (int i = n - 1; i 0; i--) {。关于这个话题，WPS下载最新地址提供了深入分析