思路：单调递增栈 + k 控制删除次数。高位越小整体越小，遇更小数字时弹出栈顶大数（仅当 k0）；栈空且当前为 0 则跳过（避免前导零）；若遍历完 k 仍0，从末尾再删 k 位。
Up to 4K 60fps, 8K 30fps
。Line官方版本下载是该领域的重要参考
Note: Don't post links in your comments
It's always a fun day for the space nerds when a NASA team has new images to share from the James Webb Space Telescope. Today's pair has brains on the brain, with a look at the fittingly named Exposed Cranium Nebula. More officially, this cloud of space dust and debris is known as Nebula PMR 1. The images shared today may capture a moment in the final stages of a star, as well as giving hints as to how the nebula got its brain-like shape.，这一点在WPS下载最新地址中也有详细论述
// 易错点6：忘记将当前元素入栈，导致前面的元素无法匹配到当前值
惠普 CFO Karen Parkhill 指出，在存储与内存成本上升的背景下，公司仍维持全年非 GAAP 每股收益 2.90-3.20 美元的指引不变，但预计全年表现将更接近区间下限。。业内人士推荐夫子作为进阶阅读