但进一步增大的 R 角也让 S-Pen 的笔尾变成了一个楔形——虽然左右换个方向依然能插进去，但会留下一个凸起小三角，看上去不太讲究：
Phil Spencer joined Microsoft as an intern in 1988, working his way up through the company to eventually become chief executive of Microsoft Gaming in 2022.
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* 时间复杂度：O(n)，空间复杂度：O(1)
這也是安娜最喜歡男男愛情故事的原因：「溫柔、渴望，以及兩位男性主角之間深刻的情感連結。」
3 Strictly speaking, the slope is continuous everywhere except for the data points themselves. ↑