描述：给定字符串 num（非负整数）和整数 k，移除 k 位数字，使剩余数字最小。以字符串形式返回（不含前导零）。
introduced solid-state memory. The IBM 1260 was used for adding machine-readable
，这一点在Line官方版本下载中也有详细论述
The EU Space Surveillance and Tracking centre (SST) said one fragment - believed to be the lander - "most likely" re-entered the atmosphere at about 06:16 GMT (07:16 BST) on Saturday.
Waits, meanwhile, is dressed in battered striped pants, a hoodie, and has a head of hair that's not seen a brush or a bit of product in ages. Their dad's home is cluttered with books and laundry, as if in the wake of their mother's death years before he can barely care for himself. However, there are hints that their father (who goes unnamed) has a life outside of their understanding of him, like the glistening Rolex on his wrist.
德国工业设计师迪特 · 拉姆斯：做得更少，但更好