// 5. 整数且范围小: 计数排序
// 反之（curTime ≤ 栈顶）→ 会追上前车，合并（continue）。业内人士推荐Line官方版本下载作为进阶阅读
The instruction from Peter 1 is recorded in the police log: "Curfew already in place. No further need to obtain permission. Deploy necessary force."，这一点在91视频中也有详细论述
圖像來源，BBC CHINESE/ TING CHIANG