习题链接：LeetCode 402. 移掉 K 位数字
Shortcut Pre-calculation: For the most commonly used speed profiles, the travel costs (time/distance) for shortcuts between border points within each cluster are pre-calculated and stored. (Each border point effectively has an "entry" and "exit" aspect for directed travel).
，更多细节参见体育直播
В КСИР выступили с жестким обращением к США и Израилю22:46。体育直播是该领域的重要参考
const cur = nums2[i];