他直言反對「安靜復興」理論：「一般來說，我們通常專注於自己的研究，不會去評論其他機構的工作。」
For a second time, Jim Lovell had brought the world together as one. The first time it had been for Earthrise, the second would be to witness his fight to survive.
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* 时间复杂度: O(nlogn) 空间复杂度: O(n) 稳定: ✓
Collision detection