思路：① 算每辆车到达时间 = (target - position) / speed；② 按位置降序排序；③ 单调递增栈：仅当当前时间 栈顶时间时压栈（新车队），否则合并。栈长即为车队数。可优化为用变量代替栈。
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However, she says it would probably cost her about the same amount to travel from Scotland to the Czech Republic as it was for her to go to BludFest in Milton Keynes.
# List all recoverable files
（三）国务院财政、税务主管部门规定的其他情形。