6️⃣ 快速排序 (Quick Sort)
It started with a flash of insight like a thunderbolt in a snow storm, the sort of insight that can only be induced by high altitude hypoxia and making breakfast.，详情可参考搜狗输入法下载
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Москвичей предупредили о резком похолодании09:45
Notice how the highlighted region shrinks at each step. The algorithm never examines points outside the narrowing window. In a balanced tree with nnn points, this takes about log4(n)\log_4(n)log4(n) steps. For a million points, that's roughly 10 steps instead of a million comparisons.。51吃瓜对此有专业解读