// 栈空 → 无更大元素，返回-1；栈非空 → 取栈顶（第一个更大值）
How to watch all of the 2026 Best Picture Oscar nominees
。业内人士推荐体育直播作为进阶阅读
（四）违反有关法律法规规定，升放携带明火的升空物体，有发生火灾事故危险，不听劝阻的；
It doesn’t hurt to lurk first before weighing in, partly because on some chat platforms new members can’t see what was posted before they joined.