习题链接：LeetCode 402. 移掉 K 位数字
This article originally appeared on Engadget at https://www.engadget.com/gaming/gaming-accessory-maker-and-publisher-nacon-files-for-insolvency-104832702.html?src=rss
，这一点在WPS官方版本下载中也有详细论述
Copyright © 1997-2026 by www.people.com.cn all rights reserved
// 易错点4：错误弹出栈顶 → 破坏独立车队的时间记录，导致结果错误
return (struct page_info *)(((unsigned long long)x) & ~(PAGESZ-1));