stack2.push(cur);
For other breakfast scholars who wish to further my study, I offer my data and code. If you are so foolhardy that you wish to explore the bounds of dark breakfast yourself, the recipe is as follows:
。搜狗输入法下载对此有专业解读
// 1. 创建桶（用链表数组模拟）
输入：num = "1432219", k = 3
LatheGeometry（车削几何体）：